Adding upstream version 5.4.4.upstream/5.4.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

23 files changed, 8857 insertions, 0 deletions

diff --git a/docs/FAQ b/docs/FAQ
new file mode 100644
index 0000000..f5d42a4
--- /dev/null
+++ b/docs/FAQ
@@ -0,0 +1,219 @@
+This is a list of "frequently" asked questions.
+
+1.1) What can I do when reprepro complains about a missing .orig.tar.gz?
+1.2) Why does it refuse a file when one in another suite has the same name?
+1.4) The key to sign my Release files needs a passphrase, what to do?
+1.5) How do I change how files are downloaded.
+1.6) How to omit packages missing files when updating.
+2.1) Does reprepro support to generate Release.gpg files?
+2.2) Does reprepro support tildes ('~') in versions?
+2.3) Does reprepro support generation of Contents-<arch>.gz files?
+3.1) Can I have two versions of a package in the same distribution?
+3.2) Can reprepro pass through a server-supplied Release.gpg?
+9) Feature ... is missing, can you add it?
+
+
+1.1) What can I do when reprepro complains about a missing .orig.tar.gz?
+------------------------------------------------------------------------
+When 'include'ing a .changes file reprepro by default only adds files
+referenced in the .changes file into the pool/-hierarchy and does not
+search for files referenced in a .dsc file and thus fails if this .orig.tar.gz
+is not already in the pool.
+You are facing the choice:
+- copy the .orig.tar.gz by hand into the appropriate place within pool/
+  and try again. reprepro will find it there when you try it the next time
+  and add it to its database.
+- use --ignore=missingfile to tell reprepro to search for such files
+  in the directory the .changes file resides in.
+- modify the .changes file by hand to reference the .orig.tar.gz
+- use changestool (comes with reprepro since version 1.3.0) to
+  list the file. ("changestool <.changesfile> includeallsources")
+- use dpkg-buildpackage -sa the next time you build a package so that
+  it calls dpkg-genchanges with -sa which then always lists .orig.tar.gz
+  and not only if it ends in -0 or -1.
+
+1.2) Why does it refuse a file when one in another suite has the same name?
+----------------------------------------------------------------------------
+Reprepro uses Debian's way to organize the pool hierarchy, which means
+that the directory and name a file is saved under is only determined by
+its sourcename, its name and its version and especially not by the
+distribution it belongs to. (This is the intent of having a pool directory,
+so that if two distributions have the same version, the disk space is only
+used once). This means that if different versions of a packaged having the
+same version string are put in the same reprepro repository (even if put
+into different distributions within that), reprepro will refuse to do so.
+(Unless you have a md5sum collision, in which case it will put the one and
+just replace the second with the first).
+
+The only way to work around, is too put the different distributions into
+different repositories. But in general it is really worth the effort to
+get the versioning right instead: Having multiple packages with the same
+version make it hard to track down problems, because it is easy to mix
+them up. Also up/downgrading a host from one distribution to the other
+will not change the package but just keep the old (as they are the
+same version, so they have to be the same, apt and dpkg will think).
+
+How to deal with this without separating repositories depends on how
+you reached this situation:
+
+- in the past Debian's stable and stable-security buildds sometimes both
+  built a package and for some architectures the one version entered
+  security.debian.org and the other ftp.debian.org with the next
+  point release. (This should be fixed now. And it is always considered
+  a bug, so if you hit this, please report it). If you mirror such
+  a situation, just update one of the distributions and manually
+  include the package into the other distribution. As the versions
+  are the same, reprepro will keep with this and not try to download
+  the other version, err other same version, err ...
+- backports (i.e. packages rebuild for older distributions)
+  Common practise is to append the version with reducing ~,
+  i.e. 1.0-1 becomes 1.0-1~bpo.7, or 3.0 becomes 3.0~sarge.
+  (This makes sure that if a host is updated the backport is
+   replaced by the real package).
+  If backporting to multiple distributions you get bonus points
+  for making sure newer distributions have higher version numbers.
+  (To make sure which version is considered newer by dpkg use
+   dpkg's --compare-versions action).
+- a package built for multiple distributions
+  is equivalent to the backports case
+- locally modified packages that should be replace by newer official
+  versions: append something like "a0myname". If it should be
+  replaced by security updates of the official package, make sure (using
+  dpkg's --compare-versions) that a security update would have
+  a higher version.
+- locally modified packages that should not be replaced by newer
+  official versions: prefix the version with "99:" and perhaps appending
+  it with something like "-myname". (appending only makes it easier to
+  distinguish, as some tools do not show epochs).
+
+1.4) The key to sign my Release files needs a passphrase, what to do?
+---------------------------------------------------------------------
+Please take a look at gpg-agent.
+You can also use the --ask-passphrase option, but please note this is quite insecure.
+
+1.5) How do I change how files are downloaded.
+----------------------------------------------
+reprepro just calls apt's methods for file retrieval.
+You can give them options in conf/updates like
+Config: Acquire::Http::Proxy=http://proxy.yours.org:8080
+or replace them with other programs speaking the same
+interface.
+
+1.6) How to omit packages missing files when updating.
+------------------------------------------------------
+reprepro does not like broken upstream repositories and just splits out
+errors and does not process the rest. (Implementing simply a ignore for
+that is not that easy, as I would have special case holding an old version
+in that case when unavailable packages should be deleted, and make some
+costly information-pushing between layers (after all, each file can belong
+to multiple packages and packages can have more than one file, so keeping
+track which package should get a mark that files where missing needs a
+n-to-n relation that should never be uses expect the case where such a
+error happens)).
+What you can do when a upstream repository you update from misses a file:
+- try once with a different mirror not missing those files. You can either
+  change the mirror to use once and change it back afterwards. Or if both
+  mirrors have the same inner directory structure (they usually have) and
+  are accessible via the same method (like both http or both ftp) you can
+  also use the Fallback: option in conf/updates to tell reprepro to get
+  missing files from the other Mirror. This an even be used for things not
+  being a mirror of the same thing, but only having some files at the same
+  place. For example to work around etch r1 listing many older kernel
+  packages but no longer having the needed files, a line
+  Fallback: http://snapshot.debian.net/archive/2007/04/02/debian/
+  can help. (But make sure to look at the run and remove this line
+  once reprepro downloaded the missing files. With this line active and
+  the primary mirror you list in Method: unreachable, reprepro will also
+  download index files from snapshot and make your repository a copy of
+  unstable from 2007-04-02 instead of an updated etch version.)
+- get the file elsewhere (with the correct md5sum), place it in the
+  appropriate place in the pool/ hierarchy and do the update. Reprepro will
+  see the file is already there, add it to its database and just continue
+  with the update.
+- tell reprepro to exclude this package
+* There are multiple ways to do so. Easiest is adding something like
+  FilterFormula: package (!= xen-shell)
+  or
+  FilterFormula: package (!= xen-shell) | version (!=1.0-2) | !files
+  to your rule in conf/updates. ( the "| ! files" tells it to only
+  omit the source package xen-shell, as source packages have a files
+  field. Make sure the package in question does not require you to
+  make the source available or you are not making your repository
+  accessible to others).
+* Another way is adding something like
+  FilterList: install excludefile
+  and adding a file conf/excludefile with content
+  xen-shell deinstall
+  (the install will tell it to install what is not listed in the file,
+   the deinstall on xen-shell will tell it to not install that package)
+* Finally you can also supply a ListHook: with a script copying
+  its first argument to the second argument, removing all occurrences
+  of the package you do not want (take a look intro the dctrl-tool
+  package for tools helping you with this).
+- the worst solution is to just propagate the problem further, by just
+  telling reprepro the file is there with the correct md5sum while it
+  is not. (Via the _addmd5sums command of reprepro). Unless you
+  run checkpool reprepro will not notice what you have done and will
+  not even try to download that file once it becomes available. So
+  don't do this.
+
+2.1) Does reprepro support to generate Release.gpg files?
+---------------------------------------------------------
+Yes, add a SignWith in the suite's definition in conf/distributions.
+(and take a look what the man page says about SignWith)
+
+2.2) Does reprepro support tildes ('~') in versions?
+----------------------------------------------------
+Yes, but in .changes files only since version 0.5.
+(You can work around this in older versions by using includedeb and
+ includedsc on the .deb and .dsc files within the .changes file, though)
+
+2.3) Does reprepro support generation of Contents-<arch>.gz files?
+------------------------------------------------------------------
+Yes, since version 1.1.0 (well, actually since 0.8.2 but a bug
+caused the generated files to not be up to date unless manually
+exporting the distributions in question).
+Look for "Contents" in the man page.
+
+3.1) Can I have two versions of a package in the same distribution?
+-------------------------------------------------------------------
+Sorry, this is not possible right now, as reprepro heavily optimizes
+at only having one version of a package in a suite-type-component-architecture
+quadruple.
+You can have different versions in different architectures and/or components
+within the same suite. (Even different versions of a architecture all package
+in different architectures of the same suite). But within the same
+architecture and the same component of a distribution it is not possible.
+
+3.2) Can reprepro pass through a server-supplied Release.gpg?
+-------------------------------------------------------------------
+No.
+The reason for this is that the Release file will be different,
+so a Release.gpg would not match.
+The reason that the Release file looks differently is that reprepro
+mirrors packages. While it can create a distribution with the same
+packages as a distribution it mirrors. It will decide on its own where
+to put the files, so their Filename: or Directory: might differ. It may
+create a different set of compressions for the generated index files.
+It does not mirror Packages.diff directories (but only comes with helpers
+to create diffs between different states of the mirror). It does not mirror
+Contents files but creates them; and so on. So to be able to mirror
+distribution signatures almost all the functionality of reprepro would need
+to be duplicated (once supporting literal mirroring, once support local
+packages, partial mirroring, merging mirroring, pool condensing), thus I
+decided that this is better a task for another program. (Note that if
+you already have a local literal mirror, you can also use that as upstream
+for partial/merged/extended mirrored distributions of that. If you use
+the file:/// in Method: (as opposed to copy:///), reprepro will make
+hardlinks for files in pool/ if possible).
+
+9) Feature ... is missing, can you add it?
+------------------------------------------
+First, please take another look at the man page. My documentation is not
+very good, so it is easy to overlook some feature even when it is described
+already. If it is not there, just write me a mail (or better write a wishlist
+report to the Debian BTS, then it cannot get lost). Some things I add quite
+fast, other stuff takes a bit. Things incompatible with the current underlying
+infrastructures or past design decisions may never come, but if I have it on the
+TODO list of things to add, it help the code to develop in a direction that
+things like that might be possible in the future.
diff --git a/docs/Makefile.am b/docs/Makefile.am
new file mode 100644
index 0000000..197b7fe
--- /dev/null
+++ b/docs/Makefile.am
@@ -0,0 +1,4 @@
+
+EXTRA_DIST = short-howto reprepro.1 changestool.1 rredtool.1 recovery bzip.example xz.example pdiff.example di.example/README di.example/DI-filter.sh di.example/distributions di.example/updates reprepro.bash_completion reprepro.zsh_completion FAQ changelogs.example manual.html copybyhand.example outstore.py sftp.py outsftphook.py
+man_MANS = reprepro.1 changestool.1 rredtool.1
+MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
diff --git a/docs/bzip.example b/docs/bzip.example
new file mode 100755
index 0000000..ca5db42
--- /dev/null
+++ b/docs/bzip.example
@@ -0,0 +1,35 @@
+#!/bin/sh
+# since reprepro 0.8 this is no longer needed, as it can
+# create .bz2 files on its own (when compiled with libbz2-dev
+# present). It's still here for reference how to such a filter works.
+
+# Copy this script to your conf/ dir as bzip2.sh, make it executable
+# and add to some definition in conf/distributions
+# DscIndices: Sources Release . .gz bzip2.sh
+# DebIndices: Packages Release . .gz bzip2.sh
+# UDebIndices: Packages . .gz bzip2.sh
+# and you have .bz2'd Packages and Sources.
+# (alternatively, if you are very brave, put the full path to this file in there)
+
+DIROFDIST="$1"
+NEWNAME="$2"
+OLDNAME="$3"
+# this can be old($3 exists), new($2 exists) or change (both):
+STATUS="$4"
+BASENAME="`basename "$OLDNAME"`"
+
+# with reprepro <= 0.7 this could also be Packages.gz or Sources.gz,
+# but now only the uncompressed name is given. (even if not generated)
+if [ "xPackages" = "x$BASENAME" ] || [ "xSources" = "x$BASENAME" ] ; then
+	if [ "x$STATUS" = "xold" ] ; then
+		if [ -f "$DIROFDIST/$OLDNAME.bz2" ] ; then
+			echo "$OLDNAME.bz2" >&3
+		else
+			bzip2 -c -- "$DIROFDIST/$OLDNAME" >"$DIROFDIST/$OLDNAME.bz2.new" 3>/dev/null
+			echo "$OLDNAME.bz2.new" >&3
+		fi
+	else
+		bzip2 -c -- "$DIROFDIST/$NEWNAME" >"$DIROFDIST/$OLDNAME.bz2.new" 3>/dev/null
+		echo "$OLDNAME.bz2.new" >&3
+	fi
+fi
diff --git a/docs/changelogs.example b/docs/changelogs.example
new file mode 100755
index 0000000..22ec3f9
--- /dev/null
+++ b/docs/changelogs.example
@@ -0,0 +1,246 @@
+#!/bin/sh
+# This is an example script that can be hooked into reprepro
+# to either generate a hierarchy like packages.debian.org/changelogs/
+# or to generate changelog files in the "third party sites"
+# location apt-get changelogs looks if it is not found in
+# Apt::Changelogs::Server.
+#
+# All you have to do is to:
+# - copy it into you conf/ directory,
+# - if you want "third party site" style changelogs, edit the
+#   CHANGELOGDIR variable below,
+# and
+# - add the following to any distribution in conf/distributions
+#   you want to have changelogs and copyright files extracted:
+#Log:
+# --type=dsc changelogs.example
+# (note the space at the beginning of the second line).
+# This will cause this script to extract changelogs for all
+# newly added source packages. (To generate them for already
+# existing packages, call "reprepro rerunnotifiers").
+
+# DEPENDENCIES: dpkg >= 1.13.9
+
+if test "x${REPREPRO_OUT_DIR:+set}" = xset ; then
+	# Note: due to cd, REPREPRO_*_DIR will no longer
+	# be usable. And only things relative to outdir will work...
+	cd "${REPREPRO_OUT_DIR}" || exit 1
+else
+	# this will also trigger if reprepro < 3.5.1 is used,
+	# in that case replace this with a manual cd to the
+	# correct directory...
+	cat "changelog.example needs to be run by reprepro!" >&2
+	exit 1
+fi
+
+# CHANGELOGDIR set means generate full hierarchy
+# (clients need to set Apt::Changelogs::Server to use that)
+CHANGELOGDIR=changelogs
+
+# CHANGELOGDIR empty means generate changelog (and only changelog) files
+# in the new "third party site" place apt-get changelog is using as fallback:
+#CHANGELOGDIR=
+
+# Set to avoid using some predefined TMPDIR or even /tmp as
+# tempdir:
+
+# TMPDIR=/var/cache/whateveryoucreated
+
+if test -z "$CHANGELOGDIR" ; then
+addsource() {
+	DSCFILE="$1"
+	CANONDSCFILE="$(readlink --canonicalize "$DSCFILE")"
+	CHANGELOGFILE="${DSCFILE%.dsc}.changelog"
+	BASEDIR="$(dirname "$CHANGELOGFILE")"
+	if ! [ -f "$CHANGELOGFILE" ] ; then
+		EXTRACTDIR="$(mktemp -d)"
+		(cd -- "$EXTRACTDIR" && dpkg-source --no-copy -x "$CANONDSCFILE" > /dev/null)
+		install --mode=644 -- "$EXTRACTDIR"/*/debian/changelog "$CHANGELOGFILE"
+		chmod -R u+rwX -- "$EXTRACTDIR"
+		rm -r -- "$EXTRACTDIR"
+	fi
+	if [ -L "$BASEDIR"/current."$CODENAME" ] ; then
+		# should not be there, just to be sure
+		rm -f -- "$BASEDIR"/current."$CODENAME"
+	fi
+	# mark this as needed by this distribution
+	ln -s -- "$(basename "$CHANGELOGFILE")" "$BASEDIR/current.$CODENAME"
+	JUSTADDED="$CHANGELOGFILE"
+}
+delsource() {
+	DSCFILE="$1"
+	CHANGELOGFILE="${DSCFILE%.dsc}.changelog"
+	BASEDIR="$(dirname "$CHANGELOGFILE")"
+	BASENAME="$(basename "$CHANGELOGFILE")"
+	if [ "x$JUSTADDED" = "x$CHANGELOGFILE" ] ; then
+		exit 0
+	fi
+#	echo "delete, basedir=$BASEDIR changelog=$CHANGELOGFILE, dscfile=$DSCFILE, "
+ 	if [ "x$(readlink "$BASEDIR/current.$CODENAME")" = "x$BASENAME" ] ; then
+ 		rm -- "$BASEDIR/current.$CODENAME"
+ 	fi
+ 	NEEDED=0
+ 	for c in "$BASEDIR"/current.* ; do
+ 		if [ "x$(readlink -- "$c")" = "x$BASENAME" ] ; then
+ 			NEEDED=1
+ 		fi
+ 	done
+ 	if [ "$NEEDED" -eq 0 -a -f "$CHANGELOGFILE" ] ; then
+ 		rm -r -- "$CHANGELOGFILE"
+		# to remove the directory if now empty
+		rmdir --ignore-fail-on-non-empty -- "$BASEDIR"
+ 	fi
+}
+
+else # "$CHANGELOGDIR" set:
+
+addsource() {
+	DSCFILE="$1"
+	CANONDSCFILE="$(readlink --canonicalize "$DSCFILE")"
+	TARGETDIR="${CHANGELOGDIR}/${DSCFILE%.dsc}"
+	SUBDIR="$(basename $TARGETDIR)"
+	BASEDIR="$(dirname $TARGETDIR)"
+	if ! [ -d "$TARGETDIR" ] ; then
+		#echo "extract $CANONDSCFILE information to $TARGETDIR"
+		mkdir -p -- "$TARGETDIR"
+		EXTRACTDIR="$(mktemp -d)"
+		(cd -- "$EXTRACTDIR" && dpkg-source --no-copy -x "$CANONDSCFILE" > /dev/null)
+		install --mode=644 -- "$EXTRACTDIR"/*/debian/copyright "$TARGETDIR/copyright"
+		install --mode=644 -- "$EXTRACTDIR"/*/debian/changelog "$TARGETDIR/changelog"
+		chmod -R u+rwX -- "$EXTRACTDIR"
+		rm -r -- "$EXTRACTDIR"
+	fi
+	if [ -L "$BASEDIR"/current."$CODENAME" ] ; then
+		# should not be there, just to be sure
+		rm -f -- "$BASEDIR"/current."$CODENAME"
+	fi
+	# mark this as needed by this distribution
+	ln -s -- "$SUBDIR" "$BASEDIR/current.$CODENAME"
+	JUSTADDED="$TARGETDIR"
+}
+delsource() {
+	DSCFILE="$1"
+	TARGETDIR="${CHANGELOGDIR}/${DSCFILE%.dsc}"
+	SUBDIR="$(basename $TARGETDIR)"
+	BASEDIR="$(dirname $TARGETDIR)"
+	if [ "x$JUSTADDED" = "x$TARGETDIR" ] ; then
+		exit 0
+	fi
+#	echo "delete, basedir=$BASEDIR targetdir=$TARGETDIR, dscfile=$DSCFILE, "
+ 	if [ "x$(readlink "$BASEDIR/current.$CODENAME")" = "x$SUBDIR" ] ; then
+ 		rm -- "$BASEDIR/current.$CODENAME"
+ 	fi
+ 	NEEDED=0
+ 	for c in "$BASEDIR"/current.* ; do
+ 		if [ "x$(readlink -- "$c")" = "x$SUBDIR" ] ; then
+ 			NEEDED=1
+ 		fi
+ 	done
+ 	if [ "$NEEDED" -eq 0 -a -d "$TARGETDIR" ] ; then
+ 		rm -r -- "$TARGETDIR"
+		# to remove the directory if now empty
+		rmdir --ignore-fail-on-non-empty -- "$BASEDIR"
+ 	fi
+}
+fi # CHANGELOGDIR
+
+ACTION="$1"
+CODENAME="$2"
+PACKAGETYPE="$3"
+if [ "x$PACKAGETYPE" != "xdsc" ] ; then
+# the --type=dsc should cause this to never happen, but better safe than sorry.
+	exit 1
+fi
+COMPONENT="$4"
+ARCHITECTURE="$5"
+if [ "x$ARCHITECTURE" != "xsource" ] ; then
+	exit 1
+fi
+NAME="$6"
+shift 6
+JUSTADDED=""
+if [ "x$ACTION" = "xadd" -o "x$ACTION" = "xinfo" ] ; then
+	VERSION="$1"
+	shift
+	if [ "x$1" != "x--" ] ; then
+		exit 2
+	fi
+	shift
+	while [ "$#" -gt 0 ] ; do
+		case "$1" in
+			*.dsc)
+				addsource "$1"
+				;;
+			--)
+				exit 2
+				;;
+		esac
+		shift
+	done
+elif [ "x$ACTION" = "xremove" ] ; then
+	OLDVERSION="$1"
+	shift
+	if [ "x$1" != "x--" ] ; then
+		exit 2
+	fi
+	shift
+	while [ "$#" -gt 0 ] ; do
+		case "$1" in
+			*.dsc)
+				delsource "$1"
+				;;
+			--)
+				exit 2
+				;;
+		esac
+		shift
+	done
+elif [ "x$ACTION" = "xreplace" ] ; then
+	VERSION="$1"
+	shift
+	OLDVERSION="$1"
+	shift
+	if [ "x$1" != "x--" ] ; then
+		exit 2
+	fi
+	shift
+	while [ "$#" -gt 0 -a "x$1" != "x--" ] ; do
+		case "$1" in
+			*.dsc)
+				addsource "$1"
+			;;
+		esac
+		shift
+	done
+	if [ "x$1" != "x--" ] ; then
+		exit 2
+	fi
+	shift
+	while [ "$#" -gt 0 ] ; do
+		case "$1" in
+			*.dsc)
+				delsource "$1"
+				;;
+			--)
+				exit 2
+				;;
+		esac
+		shift
+	done
+fi
+
+exit 0
+# Copyright 2007,2008,2012 Bernhard R. Link <brlink@debian.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02111-1301  USA
diff --git a/docs/changestool.1 b/docs/changestool.1
new file mode 100644
index 0000000..e7e49f0
--- /dev/null
+++ b/docs/changestool.1
@@ -0,0 +1,172 @@
+.TH CHANGESTOOL 1 "2010-03-19" "reprepro" REPREPRO
+.SH NAME
+changestool \- verify, dump, modify, create or fix Debian .changes files
+.SH SYNOPSIS
+.B changestool \-\-help
+
+.B changestool
+[
+\fIoptions\fP
+]
+\fI.changes-filename\fP
+\fIcommand\fP
+[
+\fIper-command-arguments\fP
+]
+.SH DESCRIPTION
+changestool is a little program to operate on Debian .changes files,
+as they are produced by \fBdpkg\-genchanges\fP(1) and used to feed
+built Debian packages into Debian repository managers like
+.BR  reprepro (1)
+or
+.BR dak .
+
+.SH EXAMPLES
+.P
+.B changestool \fIbloat.changes\fP setdistribution \fIlocal\fP
+.br
+will modify the \fBDistribution:\fP header inside \fIbloat.changes\fP
+to say \fIlocal\fP instead of what was there before.
+.P
+.B changestool \fIreprepro_1.2.0\-1.local_sparc.changes\fP includeallsources
+.br
+will modify the given file to also list \fB.orig.tar.gz\fP it does not list
+because you forgot to build it with
+.BR "dpkg\-buildpackage \-sa" .
+.P
+.B changestool \fIblafasel_1.0_abacus.changes\fP updatechecksums
+.br
+will update the md5sums to those of the files referenced by this file.
+(So one can do quick'n'dirty corrections to them before uploading to
+your private package repository)
+.P
+.B changestool \-\-create \fItest.changes\fP add \fIbla_1\-1.dsc bla_1\-1_abacus.deb\fP
+.br
+will add the specified files (format detected by filename,
+use \fBadddeb\fP or \fBadddsc\fP if you know it).
+If the file \fItest.changes\fP does not exist yet, a minimal one will be
+generated. Though that might be too minimal for most direct uses.
+
+.SH "GLOBAL OPTIONS"
+Options can be specified before the command. Each affects a different
+subset of commands and is ignored by other commands.
+.TP
+.B \-h \-\-help
+Displays a short list of options and commands with description.
+.TP
+.B \-o \-\-outputdir \fIdir\fP
+Not yet implemented.
+.TP
+.B \-s \-\-searchpath \fIpath\fP
+A colon-separated list of directories to search for files if they
+are not found in the directory of the .changes file.
+.TP
+.B \-\-create
+Flag for the commands starting with \fBadd\fP to create the \fB.changes\fP
+file if it does not yet exists.
+.TP
+.B \-\-create\-with\-all\-fields
+Flag for the commands starting with \fBadd\fP to create the \fB.changes\fP
+file if it does not yet exists.
+Unlike \fB\-\-create\fP, this creates more fields to make things like dupload
+happier.
+Currently that creates fake \fBUrgency\fP and \fBChanges\fP fields.
+.TP
+.B \-\-unlzma \fIcommand\fP
+External uncompressor used to uncompress lzma files to look
+into .diff.lzma, .tar.lzma or .tar.lzma within .debs.
+.TP
+.B \-\-unxz \fIcommand\fP
+External uncompressor used to uncompress xz files to look
+into .diff.xz, .tar.xz or .tar.xz within .debs.
+.TP
+.B \-\-lunzip \fIcommand\fP
+External uncompressor used to uncompress lzip files to look
+into .diff.lz, .tar.lz or .tar.lz within .debs.
+.TP
+.B \-\-bunzip2 \fIcommand\fP
+External uncompressor used to uncompress bz2 when compiled without
+libbz2.
+.SH COMMANDS
+.TP
+.BR verify
+Check for inconsistencies in the specified \fB.changes\fP file and the
+files referenced by it.
+.TP
+.BR updatechecksums " [ " \fIfilename\fP " ]"
+Update the checksum (md5sum and size) information within the specified
+\fB.changes\fP file and all \fB.dsc\fP files referenced by it.
+Without arguments, all files will be updated.
+To only update specific files, give their filename (without path) as
+arguments.
+.TP
+.BR setdistribution " [ " \fIdistributions\fP " ]"
+Change the \fBDistribution:\fP header to list the remaining arguments.
+.TP
+.BR includeallsources " [ " \fIfilename\fP " ]"
+List all files referenced by \fB.dsc\fP files mentioned in the \fB.changes\fP
+file in said file.
+Without arguments, all missing files will be included.
+To only include specific files, give their filename (without path) as
+arguments.
+
+Take a look at the description of \fB\-si\fP, \fB\-sa\fP and \fB\-sd\fP in
+the manpage of \fBdpkg\-genchanges\fP/\fBdpkg\-buildpackage\fP how to avoid
+to have to do this at all.
+
+Note that while \fBreprepro\fP will just ignore files listed in a \fB.changes\fP
+file when it already has the file with the same size and md5sum, \fBdak\fP
+might choke in that case.
+.TP
+.B adddeb \fIfilenames\fP
+Add the \fB.deb\fP and \fB.udeb\fP files specified by their filenames to
+the \fB.changes\fP file.
+Filenames without a slash will be searched
+in the current directory,
+the directory the changes file resides in
+and in the directories specified by the \fB\-\-searchpath\fP.
+.TP
+.B adddsc \fIfilenames\fP
+Add the \fB.dsc\fP files specified by their filenames to
+the \fB.changes\fP file.
+Filenames without a slash will be searched
+in the current directory,
+in the directory the changes file resides in
+and in the directories specified by the \fB\-\-searchpath\fP.
+.TP
+.B addrawfile \fIfilenames\fP
+Add the files specified by their filenames to
+the \fB.changes\fP file.
+Filenames without a slash will be searched
+in the current directory,
+in the directory the changes file resides in
+and in the directories specified by the \fB\-\-searchpath\fP.
+.TP
+.B add \fIfilenames\fP
+Behave like \fBadddsc\fP for filenames ending in \fB.dsc\fP,
+like \fBadddeb\fP for filenames ending in \fB.deb\fP or \fB.udeb\fP,
+and like \fBaddrawfile\fP for all other filenames
+.TP
+.B dumbremove \fIfilenames\fP
+Remove the specified files from the .changes file.
+No other fields (Architectures, Binaries, ...) are updated and
+no related files is removed.
+Just the given files (which must be specified without any \fB/\fP)
+are no longer listen in the .changes file (and only no longer in the
+changes file).
+
+.SH "SEE ALSO"
+.BR reprepro (1),
+.BR dpkg\-genchanges (1),
+.BR dpkg\-buildpackage (1),
+.BR md5sum (1).
+.SH "REPORTING BUGS"
+Report bugs or wishlist requests the Debian BTS
+(e.g. by using \fBreportbug reperepro\fP)
+or directly to <brlink@debian.org>.
+.br
+.SH COPYRIGHT
+Copyright \(co 2006-2009 Bernhard R. Link
+.br
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
diff --git a/docs/copybyhand.example b/docs/copybyhand.example
new file mode 100755
index 0000000..0b1762d
--- /dev/null
+++ b/docs/copybyhand.example
@@ -0,0 +1,28 @@
+#!/bin/sh
+# This is an example script for a byhandhook.
+# Add to you conf/distributions something like
+##ByhandHooks:
+## * * * copybyhand.sh
+# and copy this script as copybyhand.sh in your conf/
+# directory (or give the full path), and processincoming
+# will copy all byhand/raw files to dists/codename/extra/*
+
+set -e
+
+if [ $# != 5 ] ; then
+	echo "to be called by reprepro as byhandhook" >&2
+	exit 1
+fi
+if [ -z "$REPREPRO_DIST_DIR" ] ; then
+	echo "to be called by reprepro as byhandhook" >&2
+	exit 1
+fi
+
+codename="$1"
+section="$2"
+priority="$3"
+basefilename="$4"
+fullfilename="$5"
+
+mkdir -p "$REPREPRO_DIST_DIR/$codename/extra"
+install -T -- "$fullfilename" "$REPREPRO_DIST_DIR/$codename/extra/$basefilename"
diff --git a/docs/di.example/DI-filter.sh b/docs/di.example/DI-filter.sh
new file mode 100644
index 0000000..38696a3
--- /dev/null
+++ b/docs/di.example/DI-filter.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+#
+# Select only debs needed for a D-I netinstall cd
+
+IN="$1"
+OUT="$2"
+
+DIR=`dirname "$IN"`
+FILE=`basename "$IN"`
+CODENAME=`echo $FILE | cut -d"_" -f1`
+COMPONENT=`echo $FILE | cut -d"_" -f4`
+ARCH=`echo $FILE | cut -d"_" -f5`
+
+echo "### $IN"
+echo "# Source: $IN"
+echo "# Debs:   $DIR/$FILE.debs"
+echo "# Out:    $OUT"
+echo
+
+# generate list of packages needed
+DEBCDDIR="/usr/share/debian-cd"
+export ARCH CODENAME DEBCDDIR DIR
+make -f "$DEBCDDIR/Makefile"                          \
+     BDIR='$(DIR)'                                    \
+     INSTALLER_CD='2'                                 \
+     TASK='$(DEBCDDIR)/tasks/debian-installer+kernel' \
+     BASEDIR='$(DEBCDDIR)'                            \
+     forcenonusoncd1='0'                              \
+     VERBOSE_MAKE='yes'                               \
+     "$DIR/list"
+
+# hotfix abi name for sparc kernel
+sed -e 's/-1-/-2-/' "$DIR/list" > "$DIR/$FILE.debs"
+rm -f "$DIR/list"
+
+# filter only needed packages
+grep-dctrl `cat "$DIR/$FILE.debs" | while read P; do echo -n " -o -X -P $P"; done | cut -b 5-` "$IN" >"$OUT"
+
+# cleanup
+rm -f "$DIR/$FILE.debs"
diff --git a/docs/di.example/README b/docs/di.example/README
new file mode 100644
index 0000000..983ff5f
--- /dev/null
+++ b/docs/di.example/README
@@ -0,0 +1,13 @@
+This is an example from Goswin Brederlow <brederlo@informatik.uni-tuebingen.de>
+for the ListHook directive.
+
+He describes the example as:
+> attached a sample config that mirrors only packages from the debian-cd
+> netinstall CD image task. I think this would make a usefull example
+> for making a partial mirror by filtering.
+
+The speciality of the example needing the ListHook and not
+easer possible with FilterList is the need for different
+packages in different architectured. (Though extending
+FilterList to support this is on my TODO-List)
+
diff --git a/docs/di.example/distributions b/docs/di.example/distributions
new file mode 100644
index 0000000..316a051
--- /dev/null
+++ b/docs/di.example/distributions
@@ -0,0 +1,23 @@
+Origin: Debian-Installer
+Label: Debian-Installer
+Suite: testing
+Codename: sarge
+Version: 3.1
+Architectures: sparc i386
+Components: main
+UDebComponents: main
+Description: Debian Installer partial mirror
+Update: - debian
+#SignWith: yes
+
+Origin: Debian-Installer
+Label: Debian-Installer
+Suite: unstable
+Codename: sid
+Version: 3.2
+Architectures: sparc i386
+Components: main
+UDebComponents: main
+Description: Debian Installer partial mirror
+Update: - debian
+#SignWith: yes
diff --git a/docs/di.example/updates b/docs/di.example/updates
new file mode 100644
index 0000000..af39f5d
--- /dev/null
+++ b/docs/di.example/updates
@@ -0,0 +1,5 @@
+Name: debian
+Architectures: sparc i386
+Method: http://ftp.de.debian.org/debian
+#VerifyRelease: FBC60EA91B67D3C0
+ListHook: /mnt/mirror/DI/DI-filter.sh
diff --git a/docs/mail-changes.example b/docs/mail-changes.example
new file mode 100755
index 0000000..2402aaf
--- /dev/null
+++ b/docs/mail-changes.example
@@ -0,0 +1,69 @@
+#!/bin/sh
+#
+#
+# Copyright 2016 Luca Capello <luca.capello@infomaniak.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02111-1301  USA
+#
+#
+# This is an example script that can be hooked into reprepro
+# to send an email after a .changes file is processed.
+#
+# All you have to do is to:
+# - copy it into you conf/ directory,
+# - add the following to any distribution in conf/distributions
+#   you want to have emails sent for:
+#Log:
+# --changes mail-changes.example
+# (note the space at the beginning of the second line).
+#
+# DEPENDENCIES: mailx
+
+
+set -e
+
+
+if test "x${REPREPRO_OUT_DIR:+set}" = xset ; then
+	# Note: due to cd, REPREPRO_*_DIR will no longer
+	# be usable. And only things relative to outdir will work...
+	cd "${REPREPRO_OUT_DIR}" || exit 1
+else
+	# this will also trigger if reprepro < 3.5.1 is used,
+	# in that case replace this with a manual cd to the
+	# correct directory...
+	cat "mail-accepted.example needs to be run by reprepro!" >&2
+	exit 1
+fi
+
+
+MAIL_TO="$USER"
+
+ACTION="$1"
+CODENAME="$2"
+PACKAGENAME="$3"
+PACKAGEVERSION="$4"
+CHANGESFILE="$5"
+
+if [ "x$ACTION" = "xaccepted" ]; then
+	MAIL_FROM="$(grep Changed-By $CHANGESFILE | \
+		      sed -e 's/Changed-By/From/')"
+	ARCHITECTURE="$(grep Architecture $CHANGESFILE | \
+			 sed -e 's/Architecture: //')"
+	MAIL_SUBJECT="Accepted $PACKAGENAME $PACKAGEVERSION ($ARCHITECTURE) into $CODENAME"
+	cat "$CHANGESFILE" | \
+	 mail -a "$MAIL_FROM" -s "$MAIL_SUBJECT" "$MAIL_TO"
+fi
+
+
+exit 0
diff --git a/docs/manual.html b/docs/manual.html
new file mode 100644
index 0000000..af6a993
--- /dev/null
+++ b/docs/manual.html
@@ -0,0 +1,1497 @@
+<html><head>
+<title>reprepro manual</title>
+<!-- some style elements stolen from or inspired by bugs.debian.org /-->
+<style>
+<!--
+html { color: #000; background: #fefefe; font-family: serif; margin: 1em; border: 0; padding: 0; line-height: 120%; }
+body { margin: 0; border: 0; padding: 0; }
+pre { text-align: left; border: #f0f0f0 1px solid;  padding: 1px;}
+pre.shell { text-align: left; border: none; border-left: #f0f0f0 1px solid;  padding: 2px;}
+h1, h2, h3 { text-align: left; font-family: sans-serif; background-color: #f0f0ff; color: #3c3c3c; border: #a7a7a7 1px solid;  padding: 10px;}
+h1 { font-size: 180%; line-height: 150%; }
+h2 { font-size: 150% }
+h3 { font-size: 100% }
+ul.dir { list-style-type: disc; }
+ul { list-style-type: square; }
+dt.dir, dt.file, dt.symlink { font-weight:bold; font-family: sans-serif; }
+/-->
+</style>
+</head>
+<body>
+<h1>reprepro manual</h1>
+This manual documents reprepro, a tool to generate and administer
+Debian package repositories.
+<br>
+Other useful resources:
+<ul>
+<li> the <a href="http://mirrorer.alioth.debian.org/">homepage</a> of  reprepro.</li>
+<li> <a href="file://localhost/usr/share/doc/reprepro/">local directory</a> with documentation and examples, if you have reprepro installed.</li>
+<li> the <a href="http://git.debian.org/?p=mirrorer/reprepro.git;a=blob_plain;f=docs/FAQ;hb=HEAD">Frequently Asked Questions</a></li>
+</ul>
+<h2>Table of contents</h2>
+Sections of this document:
+<ul>
+<li><a href="#introduction">Introduction</a></li>
+<li><a href="#firststeps">First steps</a></li>
+<li><a href="#dirbasics">Repository basics</a></li>
+<li><a href="#config">Config files</a></li>
+<li><a href="#export">Generation of index files</a>
+ <ul>
+ <li><a href="#compression">Compression and file names</a></li>
+ <li><a href="#signing">Signing</a></li>
+ <li><a href="#contents">Contents files</a></li>
+ <li><a href="#exporthook">Additional index files (like .diff)</a></li>
+ </ul></li>
+<li><a href="#localpackages">Local packages</a>
+ <ul>
+ <li><a href="#include">Including via command line</a></li>
+ <li><a href="#incoming">Processing an incoming queue</a></li>
+ </ul></li>
+<li><a href="#mirroring">Mirroring</a></li>
+<li><a href="#propagation">Propagation of packages</a></li>
+<li><a href="#snapshosts">Snapshots</a> (TODO)</li>
+<li><a href="#tracking">Source package tracking</a> (TODO)</li>
+<li><a href="#hooks">Extending reprepro / Hooks and more</a></li>
+<li><a href="#maintenance">Maintenance</a></li>
+<li><a href="#internals">Internals</a></li>
+<li><a href="#recovery">Disaster recovery</a></li>
+<li><a href="#paranoia">Paranoia</a></li>
+<li><a href="#counterindications">What reprepro cannot do</a></li>
+</ul>
+<h2><a name="introduction">Introduction</a></h2>
+<h3>What reprepro does</h3>
+Reprepro is a tool to take care of a repository of Debian packages
+(<tt>.dsc</tt>,<tt>.deb</tt> and <tt>.udeb</tt>).
+It installs them to the proper places, generates indices of packages
+(<tt>Packages</tt> and <tt>Sources</tt> and their compressed variants)
+and of index files (<tt>Release</tt> and optionally <tt>Release.gpg</tt>),
+so tools like <tt>apt</tt> know what is available and where to get it from.
+It will keep track which file belongs to where and remove files no longer
+needed (unless told to not do so).
+It can also make (partial) partial mirrors of remote repositories,
+including merging multiple sources and
+automatically (if explicitly requested) removing packages no longer available
+in the source.
+And many other things (sometimes I fear it got a few features too much).
+<h3>What reprepro needs</h3>
+It needs some libraries (<tt>zlib</tt>, <tt>libgpgme</tt>, <tt>libdb</tt> (Version 3, 4.3 or 4.4)) and can be compiled with some more for additional features (<tt>libarchive</tt>,
+<tt>libbz2</tt>).
+Otherwise it only needs
+<tt>apt</tt>'s methods (only when downloading stuff),
+<tt>gpg</tt> (only when signing or checking signatures),
+and if compiled without <tt>libarchive</tt> it needs <tt>tar</tt> and <tt>ar</tt> installed.
+<br>
+If you tell reprepro to call scripts for you, you will of course need the interpreters for these scripts:
+The included example to generate pdiff files needs python. The example to extract
+changelogs needs dpkg-source.
+<h3>What this manual aims to do</h3>
+This manual aims to give some overview over the most important features,
+so people can use them and so that I do not implement something a second
+time because I forgot support is already there.
+For a full reference of all possible commands and config options take a
+look at the man page, as this manual might miss some of the more obscure
+options.
+<h2><a name="firststeps">First steps</a></h2>
+<h3>generate a repository with local packages</h3>
+<ul>
+<li>Choose a directory (or create it).</li>
+<li>Create a subdirectory called <tt>conf</tt> in there.</li>
+<li>In the <tt>conf/</tt> subdirectory create a file called <tt>distributions</tt>,
+with content like:
+<pre class="file">
+Codename: mystuff
+Components: main bad
+Architectures: sparc i386 source
+</pre>
+or with content like:
+<pre class="file">
+Codename: andy
+Suite: rusty
+Components: main bad
+Architectures: sparc i386 source
+Origin: myorg
+Version: 20.3
+Description: my first little repository
+</pre>
+(Multiple distributions are separated by empty lines, Origin, Version and Description
+are just copied to the generated Release files, more things controlling reprepro can
+appear which are described later).
+</li>
+<li>If your <tt>conf/distributions</tt> file contained a <tt>Suite:</tt> and you
+are too lazy to generate the symbolic links yourself, call:
+<pre class="shell">
+reprepro -b $YOURBASEDIR createsymlinks
+</pre>
+</li>
+<li>Include some package, like:
+<pre class="shell">
+reprepro -b $YOURBASEDIR include mystuff mypackage.changes
+</pre>
+or:
+<pre class="shell">
+reprepro -b $YOURBASEDIR includedeb mystuff mypackage.deb
+</pre>
+</li>
+<li>Take a look at the generated <tt>pool</tt> and <tt>dists</tt>
+directories. They contain everything needed to apt-get from.
+Tell apt to include it by adding the following to your <tt>sources.list</tt>:
+<pre class="file">
+deb file:///$YOURBASEDIR mystuff main bad
+</pre>
+or make it available via http or ftp and do the same <tt>http://</tt> or <tt>ftp://</tt> source.</li>
+</ul>
+<h3>mirroring packages from other repositories</h3>
+This example shows how to generate a mirror of a single architecture with
+all packages of etch plus security updates:
+<ul>
+<li>Choose a directory (or create it).</li>
+<li>Create a subdirectory called <tt>conf</tt> in there (if not already existent).</li>
+<li>In the <tt>conf/</tt> subdirectory create a file called <tt>distributions</tt>,
+with content like (or add to that file after an empty line):
+<pre class="file">
+Origin: Debian
+Label: Debian
+Suite: stable
+Version: 4.0
+Codename: etch
+Architectures: i386
+Components: main
+Description: Debian 4.0 etch + security updates
+Update: - debian security
+Log: logfile
+</pre>
+Actually only <tt>Codename</tt>, <tt>Components</tt>, <tt>Architecture</tt> and <tt>Update</tt> is needed, the rest is just information for clients.
+The <tt>Update</tt> line tells to delete everything no longer available (<tt>-</tt>),
+then add the <tt>debian</tt> and <tt>security</tt> rules, which still have to be defined:
+</li>
+<li>In the <tt>conf/</tt> subdirectory create a file called <tt>updates</tt>,
+with content like (or add to that file after an empty line:):
+or with content like:
+<pre class="file">
+Name: security
+Method: http://security.debian.org/debian-security
+Fallback: ftp://klecker.debian.org/debian-security
+Suite: */updates
+VerifyRelease: A70DAF536070D3A1|B5D0C804ADB11277
+Architectures: i386
+Components: main
+UDebComponents:
+
+Name: debian
+Method: http://ftp2.de.debian.org/debian
+Config: Acquire::Http::Proxy=http://proxy.myorg.de:8080
+VerifyRelease: A70DAF536070D3A1|B5D0C804ADB11277
+</pre>
+(If there are no Architecture, Components or UDebComponents, it will try all the distribution to update has. Fallback means a URL to try when the first cannot offer some file (Has to be the same method)).
+</li>
+<li>Tell reprepro to update:
+<pre class="shell">
+reprepro -b $YOURBASEDIR update etch
+</pre>
+</li>
+<li>Take a look at the generated <tt>pool</tt> and <tt>dists</tt>
+directories. They contain everything needed to apt-get from.
+Tell apt to include it by adding the following to your <tt>sources.list</tt>:
+<pre class="shell">
+deb file:///$YOURBASEDIR etch main
+</pre>
+or make it available via http or ftp.</li>
+</ul>
+<h2><a name="dirbasics">Repository basics</a></h2>
+An <tt>apt-get</tt>able repository of Debian packages consists of two parts:
+the index files describing what is available and where it is and the actual
+Debian binary (<tt class="suffix">.deb</tt>),
+installer binary (<tt class="suffix">.udeb</tt>),
+and source (<tt class="suffix">.dsc</tt> together with
+<tt class="suffix">.tar.gz</tt> or
+<tt class="suffix">.orig.tar.gz</tt> and
+<tt class="suffix">.diff.gz</tt>) packages.
+<br>
+While you do not know how these look like to use reprepro, it's always a good
+idea to know what you are creating.
+<h3>Index files</h3>
+All index files are in subdirectories of a directory called
+<tt class="dirname">dists</tt>. Apt is very decided what names those should
+have, including the name of <tt class="dirname">dists</tt>.
+Including all optional and extensional files, the hierarchy looks like this:
+
+<dl class="dir">
+<dt class="dir">dists</dt><dd>
+	<dl class="dir">
+	<dt class="dir">CODENAME</dt><dd>
+Each distribution has it's own subdirectory here, named by it's codename.
+		<dl class="dir">
+		<dt class="file">Release</dt><dd>
+This file describes what distribution this is and the checksums of
+all index files included.
+		</dd>
+		<dt class="file">Release.gpg</dt><dd>
+This is the optional detached gpg signature of the Release file.
+Take a look at the <a name="#signing">section about signing</a> for how to
+active this.
+		</dd>
+		<dt class="file">Contents-ARCHITECTURE.gz</dt><dd>
+This optional file lists all files and which packages they belong to.
+It's downloaded and used by tools like
+<a href="http://packages.debian.org/apt-file">apt-file</a>
+to allow users to determine which package to install to get a specific file.
+<br>
+To activate generating of these files by reprepro, you need a <a href="#contents">Contents</a>
+header in your distribution declaration.
+		</dd>
+		<dt class="dir">COMPONENT1</dt><dd>
+Each component has it's own subdirectory here. They can be named whatever users
+can be bothered to write into their <tt class="filename">sources.list</tt>, but
+things like <tt>main</tt>, <tt>non-free</tt> and <tt>contrib</tt> are common.
+But funny names like <tt>bad</tt> or <tt>universe</tt> are just as possible.
+			<dl class="dir">
+			<dt class="dir">source</dt><dd>
+If this distribution supports sources, this directory lists which source
+packages are available in this component.
+				<dl class="dir">
+				<dt class="file">Release</dt><dd>
+This file contains a copy of those information about the distribution
+applicable to this directory.
+				</dd>
+				<dt class="file">Sources</dt>
+				<dt class="file">Sources.gz</dt>
+				<dt class="file">Sources.bz2</dt><dd>
+These files contain the actual description of the source Packages. By default
+only the <tt class="suffix">.gz</tt> file created, to create all three add the
+following to the declarations of the distributions:
+<pre class="config">
+DscIndices Sources Release . .gz .bz2
+</pre>
+That header can also be used to name those files differently, but then apt
+will no longer find them...
+				</dd>
+				<dt class="dir">Sources.diff</dt><dd>
+This optional directory contains diffs, so that only parts of the index
+file must be downloaded if it changed. While reprepro cannot generate these
+so-called <tt>pdiff</tt>s itself, it ships both with a program called rredtool
+and with an example python script to generate those.
+				</dd>
+				</dl>
+			</dd>
+			</dl>
+			<dl class="dir">
+			<dt class="dir">binary-ARCHITECTURE</dt><dd>
+Each architecture has its own directory in each component.
+				<dl class="dir">
+				<dt class="file">Release</dt><dd>
+This file contains a copy of those information about the distribution
+applicable to this directory.
+				</dd>
+				<dt class="file">Packages</dt>
+				<dt class="file">Packages.gz</dt>
+				<dt class="file">Packages.bz2</dt><dd>
+These files contain the actual description of the binary Packages. By default
+only the uncompressed and <tt class="suffix">.gz</tt> files are created.
+To create all three, add the following to the declarations of the distributions:
+<pre class="config">
+DebIndices Packages Release . .gz .bz2
+</pre>
+That header can also be used to name those files differently, but then apt
+will no longer find them...
+				</dd>
+				<dt class="dir">Packages.diff</dt><dd>
+This optional directory contains diffs, so that only parts of the index
+file must be downloaded if it changed. While reprepro cannot generate these
+so-called <tt>pdiff</tt>s itself, it ships both with a program called rredtool
+and with an example python script to generate those.
+				</dd>
+				</dl>
+			</dd>
+			<dt class="dir">debian-installer</dt><dd>
+This directory contains information about the <tt class="suffix">.udeb</tt>
+modules for the <a href="http://www.debian.org/devel/debian-installer/">Debian-Installer</a>.
+Those are actually just a very stripped down form of normal <tt class="suffix">.deb</tt>
+packages and this the hierarchy looks very similar:
+
+				<dl class="dir">
+				<dt class="dir">binary-ARCHITECTURE</dt><dd>
+					<dl class="dir">
+					<dt class="file">Packages</dt><dd></dd>
+					<dt class="file">Packages.gz</dt><dd></dd>
+					</dl>
+				</dd>
+				</dl>
+			</dd>
+			</dl>
+		</dd>
+		<dt class="dir">COMPONENT2</dt><dd>
+There is one dir for every component. All look just the same.
+		</dd>
+		</dl>
+	</dd>
+	<dt class="symlink">SUITE -> CODENAME</dt><dd>
+To allow accessing distribution by function instead of by name, there are often
+symbolic links from suite to codenames. That way users can write
+<pre class="config">
+deb http://some.domain.tld/debian SUITE COMPONENT1 COMPONENT2
+</pre>
+instead of
+<pre class="config">
+deb http://some.domain.tld/debian CODENAME COMPONENT1 COMPONENT2
+</pre>
+in their <tt class="filename">/etc/apt/sources.list</tt> and totally get
+surprised by getting something new after a release.
+	</dd>
+	</dl>
+</dd></dl>
+<h3>Package pool</h3>
+While the index files have a required filename, the actual files
+are given just as relative path to the base directory you specify
+in your sources list. That means apt can get them no matter what
+scheme is used to place them. The classical way Debian used till
+woody was to just put them in subdirectories of the
+<tt class="dir">binary-ARCHITECTURE</tt> directories, with the exception
+of the architecture-independent packages, which were put into a
+artificial <tt class="dir">binary-all</tt> directory. This was replaced
+for the official repository with package pools, which reprepro also uses.
+(Actually reprepro stores everything in pool a bit longer than the official
+repositories, that's why it recalculates all filenames without exception).
+<br>
+In a package pool, all package files of all distributions in that repository
+are stored in a common directory hierarchy starting with <tt class="dir">pool/</tt>,
+only separated by the component they belong to and the source package name.
+As everything this has disadvantages and advantages:
+<ul><li>disadvantages
+	<ul><li>different files in different distributions must have different filenames
+	</li><li>it's impossible to determine which distribution a file belongs to by path and filename (think mirroring)
+	</li><li>packages can no longer be grouped together in common subdirectories by having similar functions
+	</li></ul>
+</li><li>advantages
+	<ul><li>the extremely confusing situation of having differently build packages with the same version if different distributions gets impossible by design.
+	</li><li>the source (well, if it exists) is in the same directory as the binaries generated from it
+	</li><li>same files in different distributions need disk-space and bandwidth only once
+	</li><li>each package can be found only knowing component and sourcename
+	</li></ul>
+</li></ul>
+Now let's look at the actual structure of a pool (there is currently no difference
+between the pool structure of official Debian repositories and those generated by
+reprepro):
+
+<dl class="dir">
+<dt class="dir">pool</dt><dd>
+	The directory all this resides in is normally called <tt class="dir">pool</tt>.
+	That's nowhere hard coded in apt but that only looks at the relative
+	directory names in the index files. But there is also no reason to name
+	it differently.
+	<dl class="dir">
+	<dt class="dir">COMPONENT1</dt><dd>
+Each component has it's own subdirectory here.
+They can be named whatever users
+can be bothered to write into their <tt class="filename">sources.list</tt>, but
+things like <tt>main</tt>, <tt>non-free</tt> and <tt>contrib</tt> are common.
+But funny names like <tt>bad</tt> or <tt>universe</tt> are just as possible.
+		<dl class="dir">
+		<dt class="dir">a</dt><dd>
+As there are really many different source packages,
+the directory would be too full when all put here.
+So they are separated in different directories.
+Source packages starting with <tt class="constant">lib</tt> are put into a
+directory named after the first four letters of the source name.
+Everything else is put in a directory having the first letter as name.
+			<dl class="dir">
+			<dt class="dir">asource</dt><dd>
+Then the source package name follows.
+So this directory <tt class="dir">pool/COMPONENT1/a/asource/</tt> would contain
+all files of different versions of the hypothetical package <tt class="constant">asource</tt>.
+				<dl class="dir">
+				<dt class="dir">asource</dt><dd>
+				<dt class="file">a-source_version.dsc</dt>
+				<dt>a-source_version.tar.gz</dt><dd>
+The actual source package consists of its description file (<tt class="suffix">.dsc</tt>)
+and the files references by that.
+				</dd>
+				<dt class="file">binary_version_ARCH1deb</dt>
+				<dt class="file">binary_version_ARCH2.deb</dt>
+				<dt class="file">binary2_version_all.deb</dt><dd>
+				<dt class="file">di-module_version_ARCH1.udeb</dt><dd>
+Binary packages are stored here to.
+So to know where a binary package is stored you need to know what its source package
+name is.
+				</dd>
+				</dl>
+			</dd>
+			</dl>
+		</dd>
+		<dt class="dir">liba</dt><dd>
+As described before packages starting with <tt class="constant">lib</tt> are not stored
+in <tt class="dir">l</tt> but get a bit more context.
+		</dd>
+		</dl>
+	</dd>
+	<dt class="dir">COMPONENT2</dt><dd>
+There is one dir for every component. All look just the same.
+	</dd>
+	</dl>
+</dd></dl>
+As said before, you don't need to know this hierarchy in normal operation.
+reprepro will put everything to where it belong, keep account what is there
+and needed by what distribution or snapshot, and delete files no longer needed.
+(Unless told otherwise or when you are using the low-level commands).
+<h2><a name="config">Config files</a></h2>
+Configuring a reprepro repository is done by writing some config files
+into a directory.
+This directory is currently the <tt class="dir">conf</tt> subdirectory of the
+base directory of the repository,
+unless you specify <tt class="option">--confdir</tt> or set the
+environment variable <tt class="env">REPREPRO_CONFIG_DIR</tt>.
+
+<dl class="dir">
+<dt class="dir">options</dt><dd>
+If this file exists, reprepro will consider each line an additional
+command line option.
+Arguments must be in the same line after an equal sign.
+
+Options specified on the command line take precedence.
+</dd>
+<dt class="dir">distributions</dt><dd>
+This is the main configuration file and the only that is needed in all
+cases.
+It lists the distributions this repository contains and their properties.
+<br>
+See <a href="#firststeps">First steps</a> for a short example or the manpage
+for a list of all possible fields.
+</dd>
+<dt class="dir">updates</dt><dd>
+Rules about where to download packages from other repositories.
+See the section <a href="#mirroring">Mirroring / Updating</a>
+for more examples or the man page for a full reference.
+</dd>
+<dt class="dir">pulls</dt><dd>
+Rules about how to move packages in bulk between distributions
+where to download packages from other repositories.
+See the section <a href="#propagation">Propagation of packages</a>
+for an example or the man page for full reference.
+</dd>
+<dt class="dir">incoming</dt><dd>
+Rules for incoming queues as processed by <tt class="command">processincoming</tt>.
+See <a href="#processincoming-incoming-config">Processing an incoming queue</a> for more information.
+</dd>
+</dl>
+<h2><a name="export">Generation of index files</a></h2>
+<h3>Deciding when to generate</h3>
+As reprepro stores all state in its database,
+you can decide when you want them to be written to the <tt class="dir">dists/</tt>
+directory.
+You can always tell reprepro to generate those files with the <tt>export</tt> command:
+<pre class="command">
+reprepro -b $YOURBASEDIR export $CODENAMES
+</pre>
+This can be especially useful, if you just edited <tt class="file">conf/distributions</tt>
+and want to test what it generates.
+<p>
+While that command regenerates all files, in normal operation reprepro will only
+regenerate files where something just changed or that are missing.
+With <tt class="option">--export</tt> option you can control when this fill happen:
+<dl><dt>never</dt><dd>Don't touch any index files.
+This can be useful for doing multiple operations in a row and not wanting to regenerate
+the indices all the time.
+Note that unless you do an explicit export or change the same parts later without that
+option, the generated index files may be permanently out of date.
+</dd><dt>silent-never</dt><dd>Like never, but be more silent about it.
+</dd><dt>changed</dt><dd>This is the default behaviour since 3.0.1.
+Only export distributions where something changed
+(and no error occurred that makes an inconsistent state likely).
+And in those distributions only (re-)generate files which content should have been changed
+by the current action or which are missing.
+</dd><dt>lookedat</dt><dd>New name for <tt>normal</tt> since 3.0.1.
+</dd><dt>normal</dt><dd>This was the default behaviour until 3.0.0 (changed in 3.0.1).
+In this mode all distributions are processed that were looked at without error
+(where error means only errors happening while the package was open so have a chance
+to cause strange contents).
+This ensures that even after a operation that had nothing to do the looked at
+distribution has all the files exported needed to access it. (But still only files
+missing or that content would change with this action are regenerated).
+</dd><dt>force</dt><dd>Also try to write the current state if some error occurred.
+In all other modes reprepro will not write the index files if there was a problem.
+While this keeps the repository usable for users, it means that you will need an
+explicit export to write possible other changes done before that in the same run.
+(reprepro will tell you that at the end of the run with error, but you should not
+miss it).
+</dd></dl>
+<h3>Distribution specific fields</h3>
+There are a lot of <tt class="file">conf/distributions</tt> headers to control
+what index files to generate for some distribution, how to name
+them, how to postprocess them and so on. The most important are:
+<h4>Fields for the Release files</h4>
+The following headers are copied verbatim to the Release file, if they exist:
+<tt class="header">Origin</tt>,
+<tt class="header">Label</tt>,
+<tt class="header">Codename</tt>,
+<tt class="header">Suite</tt>,
+<tt class="header">Architectures</tt> (excluding a possible value "<tt>source</tt>"),
+<tt class="header">Components</tt>,
+<tt class="header">Description</tt>, and
+<tt class="header">NotAutomatic</tt>,
+<tt class="header">ButAutomaticUpgrades</tt>.
+<h4><a name="compression">Choosing compression and file names</a></h4>
+Depending on the type of the index files, different files are generated.
+No specifying anything is equivalent to:
+<pre class="config">
+ DscIndices Sources Release .gz
+ DebIndices Packages Release . .gz
+ UDebIndices Packages . .gz
+</pre>
+This means to generate <tt>Release</tt>, <tt>Sources.gz</tt> for sources,
+<tt>Release</tt>, <tt>Packages</tt> and <tt>Packages.gz</tt> for binaries
+and <tt>Packages</tt> and <tt>Packages.gz</tt> for installer modules.
+<br>
+The format of these headers is the name of index file to generate, followed
+by the optional name for a per-directory release description
+(when no name is specified, no file is generated).
+Then a list of compressions:
+A single dot (<tt>.</tt>) means generating an uncompressed index,
+<tt>.gz</tt> means generating a gzipped output,
+while <tt>.bz2</tt> requests and bzip2ed file.
+(<tt>.bz2</tt> is not available when disabled at compile time).
+After the compressions a script can be given that is called to generate/update
+additional forms, see <a href="#exporthook">&quot;Additional index files&quot;</a>.
+<h4><a name="signing">Signing</a></h4>
+If there is a <tt class="config">SignWith</tt> header, reprepro will try
+to generate a <tt class="file">Release.gpg</tt> file using libgpgme.
+If the value of the header is <tt>yes</tt> it will use the first key
+it finds, otherwise it will give the option to libgpgme to determine the
+key. (Which means fingerprints and keyids work fine, and whatever libgpgme
+supports, which might include most that gpg supports to select a key).
+<br>
+The best way to deal with keys needing passphrases is to use
+<a href="http://packages.debian.org/gnupg-agent">gpg-agent</a>.
+The only way to specify which keyring to use is to set the
+<tt class="env">GNUPGHOME</tt> environment variable, which will effect all
+distributions.
+<h4><a name="contents">Contents files</a></h4>
+Reprepro can generate files called
+<tt class="file">dists/CODENAME/Contents-ARCHITECTURE.gz</tt>
+listing all files in all binary packages available for the selected
+architecture in that distribution and which package they belong to.
+<br>
+This file can either be used by humans directly or via downloaded
+and searched with tools like
+<a href="http://packages.debian.org/apt-file">apt-file</a>.
+<br>
+To activate generating of these files by reprepro, you need a <tt class="config">Contents</tt> header in that distribution's declaration in <tt class="file">conf/distributions</tt>,
+like:
+<pre class="config">
+Contents:
+</pre>
+Versions before 3.0.0 need a ratio number there, like:
+<pre class="config">
+Contents: 1
+</pre>
+The number is the inverse ratio of not yet looked at and cached files to process in
+every run. The larger the more packages are missing. 1 means to list everything.
+<br>
+The arguments of the Contents field and other fields control
+which Architectures to generate Contents files for and which
+Components to include in those. For example
+<pre class="config">
+Contents: udebs nodebs . .gz .bz2
+ContentsArchitectures: ia64
+ContentsComponents:
+ContentsUComponents: main
+</pre>
+means to not skip any packages, generate Contents for <tt class="suffix">.udeb</tt>
+files, not generating Contents for <tt class="suffix">.deb</tt>s. Also it is only
+generated for the <tt>ia64</tt> architecture and only packages in component
+<tt>main</tt> are included.
+<h4><a name="exporthook">Additional index files (like .diff)</a></h4>
+Index files reprepro cannot generate itself, can be generated by telling
+it to call a script.
+<h5>using rredtool to generate pdiff files</h5>
+Starting with version 4.1.0, the <tt>rredtool</tt> coming with reprepro
+can be used as hook to create and update <tt>Packages.diff/Index</tt> files.
+<br>
+Unlike dak (which created the official Debian repositories) or the pdiff.py
+script (see below) derived from dak, an user will only need to download
+one of those patches, as new changes are merged into the old files.
+<br>
+To use it, make sure you have
+<a href="http://packages.debian.org/diff">diff</a> and
+<a href="http://packages.debian.org/gzip">gzip</a>
+installed.
+Then add something like the following to the headers of the distributions
+that should use this in <tt class="file">conf/distributions</tt>:
+<pre class="config">
+ DscIndices: Sources Release . .gz /usr/bin/rredtool
+ DebIndices: Packages Release . .gz /usr/bin/rredtool
+</pre>
+<h5>the pdiff example hook script (generates pdiff files)</h5>
+This example generates <tt class="file">Packages.diff</tt> and/or
+<tt class="file">Sources.diff</tt> directories containing a set of
+ed-style patches, so that people do not redownload the whole index
+for just some small changes.
+<br>
+To use it, copy <tt class="file">pdiff.example</tt> from the examples directory
+into your <tt class="dir">conf</tt> directory.
+(or any other directory, then you will need to give an absolute path later).
+Unpack, if needed. Rename it to pdiff.py and make it executable.
+Make sure you have
+<a href="http://packages.debian.org/python3-apt">python3-apt</a>,
+<a href="http://packages.debian.org/diff">diff</a> and
+<a href="http://packages.debian.org/gzip">gzip</a>
+installed.
+Then add something like the following to the headers of the distributions
+that should use this in <tt class="file">conf/distributions</tt>:
+<pre class="config">
+ DscIndices: Sources Release . .gz pdiff.py
+ DebIndices: Packages Release . .gz pdiff.py
+</pre>
+More information can be found in the file itself. You should read it.
+<h5>the bzip2 example hook script</h5>
+This is an very simple example.
+Simple and mostly useless,
+as reprepro has built in <tt>.bz2</tt> generation support,
+unless you compiled it your own with <tt>--without-libbz2</tt> or
+with no <tt>libbz2-dev</tt> installed.
+<br>
+To use it, copy <tt class="file">bzip.example</tt> from the examples directory
+into your <tt class="dir">conf</tt> directory.
+(or any other directory, then you will need to give an absolute path later).
+Unpack, if needed. Rename it to bzip2.sh and make it executable.
+Then add something like the following to the headers of the distributions
+that should use this in <tt class="file">conf/distributions</tt>:
+<pre class="config">
+ DscIndices: Sources Release . .gz bzip2.sh
+ DebIndices: Packages Release . .gz bzip2.sh
+ UDebIndices: Packages . .gz bzip2.sh
+</pre>
+The script will compress the index file using the
+<a href="http://packages.debian.org/bzip2">bzip2</a> program and tell
+reprepro which files to include in the Release file of the distribution.
+<h5>internals</h5>
+TO BE CONTINUED
+<h4>...</h4>
+TO BE CONTINUED
+<h2><a name="localpackages">Local packages</a></h2>
+There are two ways to get packages not yet in any repository into yours.
+<dl><dt>includedsc, includedeb, include</dt><dd>
+These are for including packages at the command line.
+Many options are available to control what actually happens.
+You can easily force components, section and priority and/or choose to
+include only some files or only in specific architectures.
+(Can be quite useful for architecture all packages depending on some
+packages you will some time before building for some of your architectures).
+Files can be moved instead of copied and most sanity checks overwritten.
+They are also optimized towards being fast and simply try things instead of
+checking a long time if they would succeed.
+</dd><dt>processincoming</dt><dd>
+This command checks for changes files in an incoming directory.
+Being optimized for automatic processing (i.e. trying to checking
+everything before actually doing anything), it can be slower
+(as every file is copied at least once to sure the owner is correct,
+with multiple partitions another copy can follow).
+Component, section and priority can only be changed via the distribution's
+override files. Every inclusion needs a <tt class="suffix">.changes</tt> file.
+<br>
+This method is also relatively new (only available since 2.0.0), thus
+optimisation for automatic procession will happen even more.
+</dd></dl>
+<h3><a name="include">Including via command line</a></h3>
+There are three commands to directly include packages into your repository:
+<tt class="command">includedeb</tt>, <tt class="command">includedsc</tt>
+and <tt class="command">includechanges</tt>.
+Each needs to codename of the distribution you want to put your package into
+as first argument and a file of the appropriate type
+(<tt class="suffix">.deb</tt>, <tt class="suffix">.dsc</tt> or
+ <tt class="suffix">.changes</tt>, respectively) as second argument.
+<br>
+If no component is specified via <tt class="option">--component</tt>
+(or short <tt class="option">-C</tt>), it will be guessed looking at its
+section and the components of that distribution.
+<br>
+If there are no <tt class="option">--section</tt>
+(or short <tt class="option">-S</tt>) option, and it is not specified
+by the (binary or source, depending on the type) override file of the
+distribution, the value from the <tt class="suffix">.changes</tt>-file
+is used (if the command is <tt class="command">includechanges</tt>)
+or it is extracted out of the file (if it is a
+<tt class="suffix">.deb</tt>-file, future versions might also try to
+extract it from a <tt class="suffix">.dsc</tt>'s diff or tarball).
+<br>
+Same with the priority and the <tt class="option">--priority</tt>
+(or short <tt class="option">-P</tt>) option.
+<br>
+With the <tt class="option">--architecture</tt> (or short <tt class="option">-A</tt>)
+option, the scope of the command is limited to that architecture.
+<tt class="command">includdeb</tt> will add a Architecture <tt>all</tt>
+packages only to that architecture (and complain about Debian packages for
+other architectures).
+<tt class="command">include</tt> will do the same and ignore packages for
+other architectures (source packages will only be included if the value
+for <tt class="option">--architecture</tt> is <tt>source</tt>).
+<br>
+To limit the scope to a specify type of package, use the
+<tt class="option">--packagetype</tt> or short <tt class="option">-T</tt>
+option. Possible values are <tt>deb</tt>, <tt>udeb</tt> and <tt>dsc</tt>.
+<br>
+When using the <tt class="option">--delete</tt> option, files will
+be moved or deleted after copying them.
+Repeating the <tt class="option">--delete</tt> option will also delete
+unused files.
+<br>
+TO BE CONTINUED.
+<h3><a name="incoming">Processing an incoming queue</a></h3>
+Using the <tt class="command">processincoming</tt> command reprepro
+can automatically process incoming queues.
+While this is still improveable (reprepro still misses ways to send
+mails and especially an easy way to send rejection mails to the
+uploader directly), it makes it easy to have an directory where you
+place your packages and reprepro will automatically include them.
+<br>
+To get this working you need three things:
+<ul>
+<li><a href="#processincoming-incoming-config">
+a file <tt class="file">conf/incoming</tt> describing your incoming directories,
+</a></li>
+<li><a href="#processincoming-dist-config">
+a <tt class="file">conf/distribution</tt> file describing your distributions
+(as always with reprepro)
+and
+</a></li>
+<li><a href="#processincoming-calling">
+a way to get reprepro called to process it.
+</a></li>
+</ul>
+<a name="processincoming-incoming-config">
+<h4>The file <tt class="file">conf/incoming</tt></h4></a>
+describes the different incoming queues.
+As usual the different chunks are separated by empty lines.
+Each chunk can have the following fields:
+<dl><dt>Name</dt><dd>This
+is the name of the incoming queue, that <tt class="command">processincoming</tt>
+wants as argument.</dd>
+<dt>IncomingDir</dt><dd>The actual directory to look for
+<tt class="suffix">.changes</tt> files.</dd>
+<dt>TempDir</dt><dd>To ensure integrity of the processed files and their
+permissions,
+every file is first copied from the incoming directory to this directory.
+Only the user reprepro runs as needs write permissions here.
+It speeds things up if this directory is in the same partition as the pool.
+<dt>Allow</dt><dd>
+This field lists the distributions this incoming queue might inject packages
+into.
+Each item can be a pair of a name of a distribution to accept and a distribution
+to put it into.
+Each upload has each item in its <tt class="field">Distribution:</tt> field
+compared first to last to each of this items and is put in the first distribution
+accepting it. For example
+<pre class="line">
+Allow: stable>etch stable>etch-proposed-updates mystuff unstable>sid
+</pre>
+will put a <tt class="suffix">.changes</tt> file with
+<tt class="field">Distribution: stable</tt> into etch.
+If that is not possible (e.g. because etch has a
+<tt class="field">UploadersList</tt> option not allowing this) it will
+be put into etch-proposed-updates.
+And a <tt class="suffix">.changes</tt> file with
+<tt class="field">Distribution: unstable</tt> will be put into sid, while
+with <tt class="field">Distribution: mystuff</tt> will end up in mystuff.
+<br>
+If there is a <tt class="field">Default</tt> field, the <tt class="field">Allow</tt>
+field is optional.</dd>
+<dt>Default</dt><dd>
+Every upload not caught by an item of the <tt class="field">Allow</tt>
+field is put into the distribution specified by this.
+<br>
+If there is a <tt class="field">Allow</tt> field, the <tt class="field">Default</tt>
+field is optional.</dd>
+<dt>Multiple</dt><dd>
+This field only makes a difference if a <tt class="suffix">.changes</tt> file
+has multiple distributions listed in its <tt class="field">Distribution:</tt>
+field.
+Without this field each of those distributions is tried according to the
+above rules until the package is added to one (or none accepts it).
+With this field it is tried for each distribution, so a package can be upload
+to multiple distributions at the same time.
+</dd>
+<dt>Permit</dt><dd>
+A list of options to allow things otherwise causing errors.
+(see the manpage for possible values).
+<br>This field os optional.</dd>
+<dt>Cleanup</dt><dd>
+Determines when and what files to delete from the incoming queue.
+By default only successfully processed <tt class="suffix">.changes</tt> files
+and the files references by those are deleted.
+For a list of possible options take a look into the man page.
+<br>This field os optional.</dd>
+</dl>
+<a name="processincoming-dist-config">
+<h4><tt class="file">conf/distribution</tt> for <tt class="command">processincoming</tt></h4></a>
+There are no special requirements on the <tt class="file">conf/distribution</tt>
+file by processincoming. So even a simple
+<pre class="file">
+Codename: mystuff
+Architectures: i386 source
+Components: main non-free contrib bad
+</pre>
+will work.
+<br>
+The <tt class="field">Uploaders</tt> field can list a file limiting
+uploads to this distribution to specific keys and
+<tt class="field">AlsoAcceptFor</tt> is used to resolve unknown names
+in <tt class="file">conf/incoming</tt>'s <tt class="field">Allow</tt>
+and <tt class="field">Default</tt> fields.
+<a name="processincoming-calling">
+<h4>Getting <tt class="command">processincoming</tt> called.</h4></a>
+While you can just call <tt class="command">reprepro processincoming</tt> manually,
+having an incoming queue needing manual intervention takes all the fun out of
+having an incoming queue, so usually so automatic way is chosen:
+<ul>
+<li>Dupload and dput have ways to call an hook after an package was uploaded.
+This can be an ssh to the host calling reprepro.
+The disavantage is having to configure this in every
+<tt class="file">.dupload.conf</tt> on every host you want to upload and give
+everyone access to ssh and permissions on the archive who should upload.
+The advantage is you can configure reprepro to have interactive scripts or
+ask for passphrases.
+</li>
+<li>Install a cron-job calling reprepro every 5 minutes. Cron is usually
+available everywhere and getting the output sent by mail to you or a mailing
+list is easy.
+The annoying part is having to wait almost 5 minutes for the processing.
+</li>
+<li>Use something like <a href="http://packages.debian.org/inoticoming"><tt class="external">inoticoming</tt></a>.
+Linux has a syscall called inotify, allowing a program to be run whenever
+something happens to a file.
+One program making use of this is inoticoming. It watches a directory using
+this facility and whenever a <tt class="suffix">.changes</tt> file is completed
+it can call reprepro for you.
+(As this happens directly, make sure you always upload the <tt class="suffix">.changes</tt>
+file last, dupload and dput always ensure this).
+This can be combined with Debian's cron-extension to have a program started at
+boot time with the <tt>@reboot</tt> directive.
+For example with a crontab like:
+<pre class="file">
+MAILTO=myaddress@somewhere.tld
+
+@reboot inoticoming --logfile /my/basedir/logs/i.log /my/basedir/incoming/ --stderr-to-log --stdout-to-log --suffix '.changes' --chdir /my/basedir reprepro -b /my/basedir --waitforlock 100 processincoming local {} \;
+</pre>
+</li>
+</ul>
+<h2><a name="mirroring">Mirroring / Updating</a></h2>
+Reprepro can fetch packages from other repositories.
+For this it uses apt's methods from <tt class="dir">/usr/lib/apt/methods/</tt>
+so everything (http, ftp, ...) that works with apt should also work with reprepro.
+Note that this works on the level of packages, even though you can tell reprepro
+to create a distribution having always the same packages as some remote repository,
+the repository as a whole may not look exactly the same but only have the same set
+of packages in the same versions.
+<br>
+You can also only mirror a specific subset of packages, merge multiple repositories
+into one distribution, or even have distributions mixing remote and local packages.
+<br>
+Each distribution to receive packages from other repositories needs an
+<tt class="field">Update:</tt> field listing the update rules applied to it.
+Those update rules are listed in <tt class="file">conf/updates</tt>.
+There is also the magic <tt>-</tt> update rule, which tells reprepro to delete
+all packages not re-added by later rules.
+<br>
+To make reprepro to update all distributions call <tt>reprepro update</tt>
+without further arguments, or give the distributions to update as additional
+arguments.
+<br>
+Let's start with some examples:
+<h3><a name="update-examples">Updating examples</a></h3>
+Let's assume you have the following <tt class="file">conf/distributions</tt>
+<pre class="file">
+Codename: etch
+Architectures: i386 source
+Components: main contrib
+Update: local - debian security
+
+Codename: mystuff
+Architectures: abacus source
+Components: main bad
+Update: debiantomystuff
+</pre>
+and the following <tt class="file">conf/updates</tt>
+<pre class="file">
+Name: local
+Method: http://ftp.myorg.tld/debian
+
+Name: debian
+Method: http://ftp.de.debian.org/debian
+VerifyRelease: A70DAF536070D3A1
+Config: Acquire::Http::Proxy=http://proxy.yours.org:8080
+
+Name: security
+Suite: */updates
+Method: http://security.eu.debian.org/
+Fallback: http://security.debian.org/
+VerifyRelease: A70DAF536070D3A1
+Config: Acquire::Http::Proxy=http://proxy.yours.org:8080
+
+Name: debiantomystuff
+Suite: sid
+Method: http://ftp.de.debian.org/debian
+Architectures: i386&gt;abacus source
+Components: main non-free&gt;bad contrib&gt;bad
+FilterFormula: Architecture (== all)| !Architecture
+FilterList: deinstall list
+</pre>
+and a file <tt class="file">conf/list</tt> with some
+output as <tt>dpkg --get-selections</tt> is printing.
+<br>
+If you then run
+<tt class="command">reprepro update etch</tt> or
+<tt class="command">reprepro checkupdate etch</tt>,
+reprepro looks at etch's <tt class="field">Update:</tt> line
+and finds four rules. The first is the <tt>local</tt> rule,
+which only has a method, so that means it will download the
+<tt class="file">Release</tt> file from
+<tt>http://ftp.myorg.tld/debian/dists/etch/Release</tt> and
+(unless it already has downloaded them before or that
+repository does not have all of them) downloads the
+<tt>binary-i386/Packages.gz</tt>
+and <tt>source/Sources.gz</tt> files for main and contrib.
+The same is done for the <tt>debian</tt> and <tt>security</tt>
+rules.
+As they have a <tt class="field">VerifyRelease</tt> field,
+Release.gpg is also downloaded and checked to be signed with the
+given key
+(which you should have imported to you <tt class="external">gpg</tt>
+keyring before).
+As security has a <tt class="field">Suite:</tt> field, not the codename,
+but the content of this field (with an possible<tt>*</tt> replaced by the codename),
+is used as distribution to get.
+<br>
+Then it will parse for each part of the distribution, parse the files it
+get from left to right.
+For each package it starts with the version currently in the distribution,
+if there is a newer on in <tt>local</tt> it will mark this.
+Then there is the delete rule <tt>-</tt>, which will mark it to be deleted
+(but remembers what was there, so if later the version in the distribution
+or the version in <tt>local</tt> are newest, it will get them from here avoiding
+slow downloads from far away). Then it will look into <tt>debian</tt> and then
+in <tt>security</tt>, if they have a newer version (or the same version, clearing
+the deletion mark).
+<br>
+If you issued <tt class="command">checkupdate</tt> reprepro will print what it would
+do now, otherwise it tries to download all the needed files and when it got all,
+change the packages in the distribution to the new ones, export the index files
+for this distribution and finally delete old files no longer needed.
+<br>
+TO BE CONTINUED.
+<h2><a name="propagation">Propagation of packages</a></h2>
+You can copy packages between distributions using the
+<tt class="command">pull</tt> and <tt class="command">copy</tt> commands.
+<br>
+With the <tt class="command">copy</tt> command you can copy packages
+by name from one distribution to the other within the same repository.
+<br>
+With the <tt class="command">pull</tt> command you can pull all packages
+(or a subset defined by some list, or exceptions by some list, or by some
+formula, or ...) from one distribution to another within the same formula.
+<br>
+Note that both assume the filenames of the corresponding packages in the
+pool will not differ, so you cannot move packages from one component to another.
+<br>
+Let's just look at a little example, more information can be found in the man page.
+<br>
+Assume you upload all new packages to a distribution and you want another
+so you can keep using an old version until you know the newer works, too.
+One way would be to use something like the following
+<tt class="file">conf/distributions</tt>:
+<pre class="file">
+Codename: development
+Suite: unstable
+Components: main extra
+Architectures: i386 source
+
+Codename: bla
+Suite: testing
+Components: main extra
+Architectures: i386 source
+Pull: from_development
+</pre>
+and <tt class="file">conf/pulls</tt>:
+<pre class="file">
+Name: from_development
+From: development
+</pre>
+i.e. you have two distributions, bla and development.
+Now you can just upload stuff to development (or it's alias unstable).
+And when you want a single package to go to testing, you can use the copy
+command:
+<pre class="shell">
+reprepro copy bla development name1 name2 name3
+</pre>
+If you do not want to copy all packages of a given name, but only some
+of them, you can use <tt>-A</tt>, <tt>-T</tt> and <tt>-C</tt>:
+<pre class="shell">
+reprepro -T deb -A i386 copy bla development name1
+</pre>
+will copy <tt class="suffix">.deb</tt> packages called name1 from the i386
+parts of the distribution.
+<br>
+TO BE CONTINUED
+<h2><a name="snapshosts">Snapshots</a></h2>
+There is a gensnapshot command.<br>
+TO BE DOCUMENTED
+<h2><a name="tracking">Source package tracking</a></h2>
+TO BE DOCUMENTED
+<h2><a name="hooks">Extending reprepro / Hooks and more</a></h2>
+When reprepro misses some functionality,
+it often can be added by some kind of hook.
+<br>
+Currently you can execute your own scripts at the following occasions:
+<ul>
+<li><a href="#addhook">after adding or removing packages</a></li>
+<li><a href="#byhandhook">to process byhand files</a></li>
+<li><a href="#exporthook">when creating index files (Packages.gz, Sources.gz)</a></li>
+<li><a href="#signhook">when signing releases</a></li>
+<li><a href="#outhook">after changing the visible files of the repository managed</a></li>
+<li><a href="#endhook">when reprepro finished</a></li>
+</ul>
+<h3><a name="addhook">Scripts to be run when adding or removing packages</a></h3>
+Whenever a package is added or removed,
+you can tell reprepro to log that to some file and/or call a script using the
+<tt>Log:</tt> directive in <tt class="file">conf/distributions</tt>.
+<br>
+This script can send out mails and do other logging stuff,
+but despite the name, it is not restricted to logging.
+<br>
+<h4>Automatically extracting changelog and copyright information</h4>
+reprepro ships with an example script to extract <tt class="file">debian/changelog</tt>
+and <tt class="file">debian/copyright</tt>
+files from source packages into a hierarchy loosely resembling the way changelogs
+are made available at
+<a href="http://packages.debian.org/changelogs/">http://packages.debian.org/changelogs/</a>.
+<br>
+All you have to do is to copy (or unpack if compressed) the file
+<tt class="file">changelogs.example</tt> from the examples directory
+in the reprepro source or
+<a href="file:///usr/share/doc/reprepro/examples/">/usr/share/doc/reprepro/examples/</a>
+of your installed reprepro package into your <tt class="directory">conf/</tt> directory
+(or somewhere else, then you will need an absolute path later), perhaps
+change some directories specified in it
+and add something like the following lines
+to all distributions in <tt class="file">conf/distributions</tt> that should use
+this feature:
+<pre class="config">
+Log:
+ --type=dsc changelogs.example
+</pre>
+If you still want to log to some file, just keep the filename there:
+<pre class="config">
+Log: mylogfilename
+ --type=dsc changelogs.example
+</pre>
+Then cause those files to be generated for all existing files via
+<pre class="command">
+reprepro rerunnotifiers
+</pre>
+and all future source packages added or removed will get this list automatically
+updated.
+<h4>Writing your own Log: scripts</h4>
+You can list an arbitrary amount of scripts, to be called at specified times
+(which can overlap or even be the same):
+<pre class="config">
+Log: logfilename
+ --type=dsc script-to-run-on-source-package-changes
+ script-to-run-on-package-changes
+ another-script-to-run-on-package-changes
+ --type=dsc --component=main script-to-run-on-main-source-packages
+ --architecture=i386 --type=udeb script-to-run-on-i386-udebs
+ --changes script-to-run-on-include-or-processincoming
+</pre>
+There are two kind of scripts:
+The first one is called when a package was added or removed.
+Using the <tt class="option">--archtecture=</tt>,
+<tt class="option">--component=</tt> and
+<tt class="option">--type=</tt> options you can limit it to specific parts
+of the distribution.
+The second kind is marked with <tt class="option">--changes</tt> and is
+called when a <tt class="suffix">.changes</tt>-file was added with
+<tt class="command">include</tt> or <tt class="command">processincoming</tt>.
+Both are called asynchronous in the background <emph>after</emph> everything was done,
+but before no longer referenced files are deleted (so the files of the
+replaced or deleted package are still around).
+<h5>Calling conventions for package addition/removal scripts</h5>
+This type of script is called with a variable number of arguments.
+The first argument is the action. This is either
+<tt>add</tt>, <tt>remove</tt> or <tt>replace</tt>.
+The next four arguments are the codename of the affected distribution
+and the packagetype, component and architecture in that distribution
+affected.
+The sixth argument is the package's name.
+After that is the version of the added package (<tt>add</tt> and <tt>replace</tt>)
+and the version of the removed package (<tt>remove</tt> and <tt>replace</tt>).
+Finally the filekeys of the new (<tt>add</tt> and <tt>replace</tt>) and/or
+removed (<tt>remove</tt> and <tt>replace</tt>) package are listed
+starting with the marker &quot;<tt>--</tt>&quot; followed by each filekey
+(the name of the file in the <tt class="dir">pool/</tt>
+relative to <tt class="env">REPREPRO_OUT_DIR</tt>)
+as its own argument.
+<br>
+The environment variable <tt class="env">REPREPRO_CAUSING_COMMAND</tt>
+contains the command of the action causing this change.
+The environment variable
+<tt class="env">REPREPRO_CAUSING_FILE</tt> contains the name of the file
+given at the command line causing this package to be changed,
+if there is one.
+(i.e. with <tt class="command">includedeb</tt>,
+<tt class="command">includedsc</tt> and <tt class="command">include</tt>).
+The environment variables
+<tt class="env">REPREPRO_CAUSING_RULE</tt> and
+<tt class="env">REPREPRO_FROM</tt> are
+the name of the update or pull rule pulling in a package
+and the name of the distribution a package is coming from.
+What this name is depends on the command and for most commands
+it is simply not set at all.
+And of course all the <tt class="env">REPREPRO_*_DIR</tt> variables are set.
+<h5>Calling conventions for <tt class="suffix">.changes</tt> scripts</h5>
+This type of script is called with 5 or 6 arguments.
+The first is always &quot;<tt>accepted</tt>&quot;, to make it easier to
+check it is configured the right way.
+The second argument is the codename of the distribution the
+<tt class="suffix">.changes</tt>-file was added to.
+The third argument is the source name, the forth the version.
+The fifth name is the <tt class="suffix">.changes</tt> itself
+(in case of <tt class="command">processingcoming</tt> the secure copy in the
+temporary dir).
+There is a sixth argument if the <tt class="suffix">.changes</tt>-file was
+added to the <tt class="dir">pool/</tt>:
+The filekey of the added .changes file
+(i.e. the filename relative to <tt class="env">REPREPRO_OUT_DIR</tt>).
+<br>
+The environment variable <tt class="env">REPREPRO_CAUSING_COMMAND</tt>
+contains the command of the action causing this change.
+The environment variable
+<tt class="env">REPREPRO_CAUSING_FILE</tt> contains the name of the file
+given at the command line, if there is one
+(e.g. with <tt class="command">include</tt>).
+And of course all the <tt class="env">REPREPRO_*_DIR</tt> variables are set.
+<h3><a name="byhandhook">Scripts to be run to process byhand files</a></h3>
+<tt class="suffix">.changes</tt> files can (beside the usual packages files
+to be included in the repository) contain additional files to be processed
+specially.
+Those are marked by the special section <tt class="constant">byhand</tt> (in Debian)
+or <tt class="constant">raw-</tt>something (in Ubuntu).
+Besides storing them just in the pool besides the packages using the
+<tt class="constant">includebyhand</tt> value in the <tt class="field">Tracking</tt>
+settings you can also let reprepro process a hook to process them when encountering
+them in the <tt class="action">processincomming</tt> action
+(Typical usages are uploading documentation files this way that are unpacked next
+to the repository, or installer images or stuff like that).
+
+To use them add to the distribution's defining stanca in <tt class="filename">conf/distributions</tt> a field like:
+<pre class="config">
+ByhandHooks:
+ byhand * manifesto.txt handle-byhand.sh
+</pre>
+This will call the hook script <tt class="constant">handle-byhand.sh</tt> for every byhand file with section <tt class="constant">byhand</tt>, any priority and filename <tt class="constant">manifesto.txt</tt>. (The first three fields allow glob characters for matching).
+
+The script will then be called with 5 arguments:
+the codename of the distribution,
+the section,
+the priority,
+the filename as found in the changes file and
+the filename of where the script can find the actual file.
+
+<h3>Scripts to be run when creating index files (Packages.gz, Sources.gz)</h3>
+this hook is described in the section <a href="#exporthook">&quot;Additional index files&quot;</a>.
+
+<h3><a name="signhook">Scripts to be run when signing releases</a></h3>
+Instead of creating <tt class="filename">InRelease</tt> and
+<tt class="filename">Release.gpg</tt> files using libgpgme,
+the <tt class="option">SignWith</tt> option can also contain
+a exclamation mark followed by a space and the name of a hook script to call.
+
+The script gets three arguments:
+The filename to sign,
+the filename of the InRelease file to create and
+the filename of the Release.gpg to create
+(a Release.gpg does not need to be created. reprepro will assume you do not care about that legacy file if it is not created).
+
+Reprepro will wait for the script to continue and only do the renaming
+and deleting of old files after that, so the script might wait for example
+for someone to copy files from the system, signing and copying them it,
+for example.
+
+<h3><a name="outhook">Scripts to be run after changing the visible files of the repository managed</a></h3>
+When using the <tt class="option">--outhook</tt> command line option (or the corresponding
+<tt class="constant">outhook</tt> in the <tt class="filename">options</tt> file),
+reprepro will create a <tt class="suffix">.outlog</tt> file in the log directory describing
+any changes done to the out dir and calls the hook script given as argument with this
+file as argument.
+
+The <tt class="suffix">.outlog</tt> file consists of lines each starting with a keyword
+and then some arguments separated by tab characters.
+
+The possible keywords are:
+<ul>
+<li><tt class="constant">POOLNEW</tt>:
+One argument is the filekey of a file newly added to the pool.
+<li><tt class="constant">POOLDELETE</tt>:
+One argument is the filekey of a file removed from the pool.
+<li><tt class="constant">START-DISTRIBUTION</tt>, <tt class="constant">END-DISTRIBUTION</tt>:
+two or three arguments: the codename, the directory,
+and the suite (if set).
+<li><tt class="constant">START-SNAPSHOT</tt>, <tt class="constant">END-SNAPSHOT</tt>:
+three arguments: the codename, the directory, and the name of the snapshot generated.
+<li><tt class="constant">DISTFILE</tt>:
+three arguments: the directory of the distribution (relative to out dir), the name relative to that directory, and the filename generated by reprepro.
+<li><tt class="constant">DISTSYMLINK</tt>:
+three arguments: the directory of the distribution (relative to out dir), the name relative to that directory, and the symlink target (relative to that directory).
+<li><tt class="constant">DISTDELETE</tt>:
+two arguments: the directory of the distribution (relative to out dir), the name relative to that directory of a file no longer there.
+<li><tt class="constant">DISTKEEP</tt> (not yet generated):
+two arguments: the directory of the distribution (relative to out dir), the name relative to that directory.
+</ul>
+
+All <tt class="constant">POOLNEW</tt> come before any distribution changes referencing them
+and all <tt class="constant">POOLDELETE</tt> will be afterwards.
+Each line belonging to a distribution is guaranteed to be between the corresponding
+<tt class="constant">START-DISTRIBUTION</tt> and
+<tt class="constant">END-DISTRIBUTION</tt> or between a
+<tt class="constant">START-SNAPSHOT</tt> and
+<tt class="constant">END-SNAPSHOT</tt> or between a
+with the same directory
+(i.e. there is some redundancy so you can choose to parse the information where it is more convenient for you).
+
+The lines starting with <tt class="constant">DIST</tt> describe new or modified files in the distribution description exported by reprepro. No hint is given if that file was previously non-existent, a proper file or a symlink (i.e. if you copy stuff, do not make any assumptions about that).
+Future versions of reprepro might create <tt class="constant">DISTKEEP</tt> lines to denote files that have not changed (i.e. just ignore those lines to be future-proof).
+
+The directories for the distribution entries are what apt expects them (i.e. always starting with <tt class="constant">dists/</tt>, while the third argument to <tt class="constant">DISTFILE</tt> is the name reprepro generated (i.e. starts with the distdir value, which can be configured to not end with <tt class="constant">dists/</tt>).
+
+<h3><a name="endhook">when reprepro finished</a></h3>
+With the <tt class="option">--endhook</tt> command line option (or the corresponding
+<tt class="constant">endhook</tt> in the <tt class="filename">options</tt> file) you
+can specify a hook to be executed after reprepro finished but before reprepro returns
+the to calling process.
+The hook gets all the command line arguments after the options (i.e. starting with
+the name of the action) and the exit code reprepro would have produces.
+For an example see the man page.
+<h2><a name="maintenance">Maintenance</a></h2>
+This section lists some commands you can use to check and improve the health
+of you repository.
+<br>
+Normally nothing of this should be needed, but taking a look from time to time
+cannot harm.
+<pre class="command">
+reprepro -b $YOURBASEDIR dumpunreferenced
+</pre>
+This lists all files reprepro knows about that are not marked as needed by anything.
+Unless you called reprepro with the <tt class="option">--keepunreferenced</tt>
+option, those should never occur. Though if reprepro is confused or interrupted it
+may sometimes prefer keeping files around instead of deleting them.
+<pre class="command">
+reprepro -b $YOURBASEDIR deleteunreferenced
+</pre>
+This is like the command before, only that such files are directly forgotten and
+deleted.
+<pre class="command">
+reprepro -b $YOURBASEDIR check
+</pre>
+Look if all needed files are in fact marked needed and known.
+<pre class="command">
+reprepro -b $YOURBASEDIR checkpool
+</pre>
+Make sure all known files are still there and still have the same checksum.
+<pre class="command">
+reprepro -b $YOURBASEDIR checkpool fast
+</pre>
+As the command above, but do not compute checksums.
+<pre class="command">
+reprepro -b $YOURBASEDIR tidytracks
+</pre>
+If you use source package tracking, check for files kept because of this
+that should no longer by the current rules.
+<br>
+If you fear your tracking data could have became outdated,
+you can also try the retrack command:
+<pre class="command">
+reprepro -b $YOURBASEDIR retrack
+</pre>
+That refreshes the tracking information about packages used and then
+runs a tidytracks. (Beware: don't do this with reprepro versions before 3.0.0).
+<h2><a name="internals">Internals</a></h2>
+reprepro stores the data it collects in Berkeley DB file (<tt class="suffix">.db</tt>)
+in a directory called <tt class="dir">db/</tt> or whatever you specified via command
+line. With a few exceptions, those files are NO CACHES, but the actual data.
+While some of those data can be regained when you lose those files, they are better
+not deleted.
+<h3>packages.db</h3>
+This file contains the actual package information.
+<br>
+It contains a database for every (codename,component,architecture,packagetype) quadruple
+available.
+<br>
+Each is indexed by package name and essentially contains the information written do
+the Packages and Sources files.
+<br>
+Note that if you change your <tt class="file">conf/distributions</tt> to no longer
+list some codenames, architectures or components,
+that will not remove the associated databases in this file.
+That needs an explicit call to <tt class="command">clearvanished</tt>.
+<h3>references.db</h3>
+This file contains a single database that lists for every file why this file
+is still needed.
+This is either an identifier for a package database, an tracked source package,
+or a snapshot.
+<br>
+Some low level commands to access this are (take a look at the manpage for how to use them):
+<dl class="commands">
+<dt class="command">rereference</dt><dd>recreate references (i.e. forget old and create newly)</dd>
+<dt class="command">dumpreferences</dt><dd>print a list of all references</dd>
+<dt class="command">_removereferences</dt><dd>remove everything referenced by a given identifier</dd>
+<dt class="command">_addreference</dt><dd>manually add a reference</dd>
+<dt class="command">_addreferences</dt><dd>manually add multiple references</dd>
+</dl>
+<h3>files.db / checksums.db</h3>
+These files contains what reprepro knows about your <tt class="dir">pool/</tt> directory,
+i.e. what files it things are there with what sizes and checksums.
+The file <tt class="filename">files.db</tt> is used by reprepro before version 3.3
+and kept for backwards compatibility.
+If your repository was only used with newer versions you can safely delete it.
+Otherwise you should run <tt class="command">collectnewchecksums</tt> before deleting
+it.
+The file <tt class="filename">checksums.db</tt> is the new file used since
+version 3.3.
+It can store more checksums types (<tt class="filename">files.db</tt> only contained
+md5sums, <tt class="filename">checksums.db</tt> can store arbitrary checksums and
+reprepro can even cope with it containing checksum types it does not yet know of)
+but for compatibility with pre-3.3 versions is not the canonical source of information
+as long as a <tt class="filename">files.db</tt> file exists).
+<br>
+If you manually put files in the pool or remove them, you should tell reprepro about that.
+(it sometimes looks for files there without being told, but it never forgets files
+except when it would have deleted them anyway).
+Some low level commands (take a look at the man page for how to use them):
+<dl class="commands">
+<dt class="command">collectnewchecksums</dt><dd>Make sure every file is listed in <tt class="filename">checksums.db</tt> and with all checksum types your reprepro supports.</dd>
+<dt class="command">checkpool fast</dt><dd>Make sure all files are still there.</dd>
+<dt class="command">checkpool</dt><dd>Make sure all files are still there and correct.</dd>
+<dt class="command">dumpunreferenced</dt><dd>Show all known files without reference.</dd>
+<dt class="command">deleteunreferenced</dt><dd>Delete all known files without reference.</dd>
+<dt class="command">_listmd5sums</dt><dd>Dump this database (old style)</dd>
+<dt class="command">_listchecksums</dt><dd>Dump this database (new style)</dd>
+<dt class="command">_detect</dt><dd>Add files to the database</dd>
+<dt class="command">_forget</dt><dd>Forget that some file is there</dd>
+<dt class="command">_addmd5sums</dt><dd>Create the database from dumped data</dd>
+<dt class="command">_addchecksums</dt><dd>dito</dd>
+<h3>release.cache.db</h3>
+In this file reprepro remembers what it already wrote to the <tt class="dir">dists</tt>
+directory,
+so that it can write their checksums (including the checksums of the uncompressed variant,
+even if that was never written to disk)
+in a newly to create <tt class="file">Release</tt>
+file without having to trust those files or having to unpack them.
+<h3>contents.cache.db</h3>
+This file contains all the lists of files of binary package files where reprepro
+already needed them. (which can only happen if you requested Contents files to be
+generated).
+<h3>tracking.db</h3>
+This file contains the information of the <a href="#tracking">source package tracking</a>.
+<h2><a name="recovery">Disaster recovery</a></h2>
+TO BE DOCUMENTED (see the
+<a href="http://git.debian.org/?p=mirrorer/reprepro.git;a=blob_plain;f=docs/recovery;hb=HEAD">recovery</a>
+file until then)
+<h2><a name="paranoia">Paranoia</a></h2>
+As all software, reprepro might have bugs.
+And it uses libraries not written by myself,
+which I'm thus even more sure that they will have bugs.
+Some of those bugs might be security relevant.
+This section contains some tips, to reduce the impact of those.
+<ul>
+<li>Never run reprepro as root.<br>
+All reprepro needs to work are permissions to files,
+there is no excuse for running it as root.
+</li>
+<li>Don't publish your db/ directory.<br>
+The contents of the db directory are not needed by everyone else.
+Having them available to everyone may make it easier for them to
+exploit some hypothetical problem in libdb and makes it easier to
+know in advance how exactly reprepro will act in a given circumstances,
+thus easier to exploit some hypothetical problem.
+</li>
+<li>Don't accept untrusted data without need.<br>
+If an attacker cannot do anything, they cannot do anything harmful, either.
+So if there is no need, don't offer an anonymous incoming queue.
+<tt class="program">dput</tt> supports uploading via scp, so just having
+an only group-writable incoming directory, or even better multiple incoming
+directories can be a better alternative.
+</li>
+</ul>
+External stuff being used and attack vectors opened by it:
+<dl>
+<dt>libgpgme/gpg</dt><dd>
+Almost anything is run through <tt>libgpgme</tt> and thus <tt>gpg</tt>.
+It will be used to check the <tt class="filename">Release.gpg</tt> file,
+or to read <tt class="suffix">.dsc</tt> and <tt class="suffix">.changes</tt>
+files (even when there is no key to look for specified,
+as that is the best way to get the data from the signed block).
+Avoiding this by just accepting stuff without looking for signatures on
+untrusted data is not really an option, so I know nothing to prevent this
+type of problems.
+</dd>
+<dt>libarchive</dt><dd>
+The <tt class="suffix">.tar</tt> files within <tt class="suffix">.deb</tt>
+files are normally (unless that library was
+not available while compiling) read using libarchive.
+This happens when a <tt class="suffix">.deb</tt> file is to be added
+(though only after deciding if it should be added, so if it does not have
+the correct checksum or the .changes did not have the signatures you specified,
+it is not) or when the file list is to be extracted
+(when creating <tt class="filename">Contents</tt> files).
+Note that they are not processed when only mirroring them (of course unless
+<tt class="filename">Contents</tt> files are generated), as then only the
+information from the Packages file is copied.
+</dd>
+<dt>dpkg-deb/tar</dt><dd>
+If reprepro was compiled without libarchive,
+<tt class="program">dpkg-deb</tt> is used instead, which most likely will
+call <tt class="program">tar</tt>. Otherwise just the same like the last
+item.
+</dd>
+<dt>zlib</dt><dd>
+When mirroring packages, the downloaded
+<tt class="filename">Packages.gz</tt> and <tt class="filename">Sources.gz</tt> files
+are read using zlib. Also the generated <tt class="suffix">.gz</tt> files
+are generated using it. There is no option but hoping there is no security
+relevant problem in that library.
+</dd>
+<dt>libbz2</dt><dd>
+Only used to generate <tt class="suffix">.bz2</tt> files.
+If you fear simple blockwise writing using that library has a security problem
+that can be exploited by data enough harmless looking to be written to the
+generated index files, you can always decide to no tell reprepro to generate
+<tt class="suffix">.bz2</tt> files.
+</dd>
+</dl>
+<h2><a name="counterindications">What reprepro cannot do</a></h2>
+There are some things reprepro does not do:
+<dl><dt>Verbatim mirroring</dt><dd>
+Reprepro aims to put all files into a coherent <tt>pool/</tt> hierarchy.
+Thus it cannot guarantee that files will have the same relatives path as in the
+original repository (especially if those have no pool).
+It also creates the index files from its own indices.
+While this leads to a tidy repository and possible savings of disk-space, the
+signatures of the repositories you mirror cannot be used to authenticate the mirror,
+but you will have to sign (or tell reprepro to sign for you) the result.
+While this is perfect when you only mirror some parts or specific packages or
+also have local packages that need local signing anyway, reprepro is no suitable tool
+for creating a full mirror that can be authenticated without adding the key of this
+repository.
+</dd>
+<dt>Placing your files on your own</dt><dd>
+Reprepro does all the calculation of filenames to save files as,
+bookkeeping what files are there and what are needed and so on.
+This cannot be switched off or disabled.
+You can place files where reprepro will expect them and reprepro will use
+them if their md5sum matches.
+But reprepro is not suited if you want those files outside of a pool or in
+places reprepro does not consider their canonical ones.
+</dd>
+<dt>Having different files with the same name</dt><dd>
+take a look in the <a href="http://git.debian.org/?p=mirrorer/reprepro.git;a=blob_plain;f=docs/FAQ;hb=HEAD">FAQ</a> (currently question 1.2) why and how to avoid the problem.
+
+</dd>
+</dl>
+</body>
+</html>
diff --git a/docs/outsftphook.py b/docs/outsftphook.py
new file mode 100755
index 0000000..91c1c9c
--- /dev/null
+++ b/docs/outsftphook.py
@@ -0,0 +1,589 @@
+#!/usr/bin/python3
+# Copyright (C) 2013 Bernhard R. Link
+#
+# This example script is free software; you can redistribute it
+# and/or modify it under the terms of the GNU General Public License
+# version 2 as published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02111-1301  USA
+
+# Those can be set here or in conf/outsftphook.conf:
+servername = None
+username = None
+targetdir = ""
+
+import sys, os, subprocess, select, sftp
+
+class Round(sftp.Enum,
+	DONE = -2,
+	INDIRECT = -1,
+	POOLFILES = 0,
+	DISTFILES = 1,
+	DELETES = 2,
+):
+	pass
+
+errors = 0
+def printe(s):
+	global errors
+	print(s, file=sys.stderr)
+	errors += 1
+
+# renaming file, assuming all directories exist...
+def renamefile(dst, src, donefunc):
+	a = yield [sftp.REMOVE(targetdir + dst), sftp.RENAME(targetdir + src, targetdir + dst, [sftp.SSH_FXF_RENAME.OVERWRITE])]
+	while True:
+		l = []
+		if not isinstance(a, sftp.STATUS):
+			raise SftpUnexpectedAnswer(a, "expecting STATUS")
+		if isinstance(a.forr, sftp.REMOVE):
+			if a.status != sftp.SSH_FX.OK and a.status != sftp.SSH_FX.NO_SUCH_FILE:
+				printe("%s failed: %s" % (a.forr, a))
+		elif isinstance(a.forr, sftp.RENAME):
+			if a.status != sftp.SSH_FX.OK:
+				printe("%s failed: %s" % (a.forr, a))
+			else:
+				l = donefunc(dst)
+		else:
+			raise SftpUnexpectedAnswer(a, a.forr)
+		a.forr.done()
+		a = yield l
+
+# create symlink, assuming all directories exist...
+def symlinkfile(dst, src, donefunc):
+	a = yield [sftp.REMOVE(targetdir + dst), sftp.SYMLINK(targetdir + dst, targetdir + src)]
+	while True:
+		l = []
+		if not isinstance(a, sftp.STATUS):
+			raise SftpUnexpectedAnswer(a, "expecting STATUS")
+		if isinstance(a.forr, sftp.REMOVE):
+			if a.status != sftp.SSH_FX.OK and a.status != sftp.SSH_FX.NO_SUCH_FILE:
+				printe("%s failed: %s" % (a.forr, a))
+		elif isinstance(a.forr, sftp.SYMLINK):
+			if a.status != sftp.SSH_FX.OK:
+				printe("%s failed: %s" % (a.forr, a))
+			else:
+				l = donefunc(dst, message="symlink done")
+		else:
+			raise SftpUnexpectedAnswer(a, a.forr)
+		a.forr.done()
+		a = yield l
+
+def deletefile(dst, donefunc):
+	a = yield [sftp.REMOVE(targetdir + dst)]
+	if not isinstance(a, sftp.STATUS):
+		raise SftpUnexpectedAnswer(a, "expecting STATUS")
+	if a.status == sftp.SSH_FX.OK:
+		l = donefunc(dst, message="deleted")
+	elif a.status == sftp.SSH_FX.NO_SUCH_FILE:
+		l = donefunc(dst, message="already deleted")
+	else:
+		printe("%s failed: %s" % (a.forr, a))
+		l = []
+	a.forr.done()
+	a = yield l
+	raise SftpUnexpectedAnswer(a, a.forr)
+
+def writefile(fname, filetocopy, donefunc):
+	filename = targetdir + fname
+	fd = open(filetocopy, 'rb')
+	dirname = os.path.dirname(filename)
+	if dirname:
+		mode = yield [('waitingfor', sftp.Dirlock, dirname)]
+	else:
+		mode = "top-level"
+	a = yield [('lock', sftp.Semaphore, 'openfile')]
+	if a != "unlock":
+		raise SftpUnexpectedAnswer(a, "waiting for unlock event")
+	a = yield [sftp.OPEN(filename, "CREAT|WRITE")]
+	if mode == "tryandtell" and isinstance(a, sftp.STATUS) and a.status == a.status.NO_SUCH_FILE:
+		a.forr.done()
+		a = yield [('missing', sftp.Dirlock, dirname),
+		           ('release', sftp.Semaphore, 'openfile')]
+		if a != "createnew":
+			raise SftpUnexpectedAnswer(a, "waiting for %s" % dirname)
+		mode = a
+		a = yield [('lock', sftp.Semaphore, 'openfile')]
+		if a != "unlock":
+			raise SftpUnexpectedAnswer(a, "waiting for unlock event")
+		a = yield [sftp.OPEN(filename, "CREAT|WRITE")]
+	if not isinstance(a, sftp.HANDLE):
+		a.forr.done()
+		printe("Failed to create %s: %s" % (filename, a))
+		return
+		# raise SftpException("Failed to create %s: %s" % (filename, a))
+	h = a.handle
+	a.forr.done()
+	if mode == "tryandtell":
+		f = [('found', sftp.Dirlock, dirname), 'wantwrite']
+	else:
+		f = ['wantwrite']
+	a = yield f
+	if a != 'canwrite':
+		raise SftpUnexpectedAnswer(a, "waiting for 'canwrite'")
+	ofs = 0
+	while True:
+		b = fd.read(16376)
+		if len(b) == 0:
+			break
+		a = yield [sftp.WRITE(h, ofs, b), 'wantwrite']
+		ofs += len(b)
+		b = None
+		while a != 'canwrite':
+			a.forr.done()
+	fd.close()
+	a = yield [sftp.CLOSE(h), ('release', sftp.Semaphore, 'openfile')]
+	while True:
+		if type(a.forr) == sftp.CLOSE:
+			if a.status != sftp.SSH_FX.OK:
+				printe("%s failed: %s" % (a.forr, a))
+			l = donefunc(fname)
+		else:
+			if a.status != sftp.SSH_FX.OK:
+				printe("%s failed: %s" % (a.forr, a))
+			l = []
+		a.forr.done()
+		a = yield l
+
+class CriticalError(Exception):
+	pass
+class ParseError(CriticalError):
+	pass
+class ParseErrorWrongCount(ParseError):
+	def __init__(field):
+		super().__init__("Wrong number of arguments for %s" % field)
+
+class CollectedDistDir:
+	def __init__(self, dir):
+		self.done = False
+		self.failed = False
+		self.dir = dir
+		self.files = dict()
+		self.deletes = dict()
+		self.symlinks = dict()
+		self.transfered = 0
+	def onedone(self, filename):
+		assert(filename.endswith(".new"))
+		filename = filename[:-4]
+		assert (filename in self.files)
+		self.transfered += 1
+		self.files[filename].markpartial(filename, "asdotnew")
+		return self.finalizeifready()
+	def finalizeifready(self):
+		assert (not self.done)
+		if len(self.files) != self.transfered:
+			assert (len(self.files) > self.transfered)
+			return []
+		# everything copied as .new as needed, let's start finalisation
+		self.done = True
+		l = []
+		for m,e in self.files.items():
+			l.append(sftp.TaskFromGenerator(renamefile(m, m + ".new", e.doneone)))
+		for m,e in self.deletes.items():
+			l.append(sftp.TaskFromGenerator(deletefile(m, e.doneone)))
+		for m,(t,e) in self.symlinks.items():
+			l.append(sftp.TaskFromGenerator(symlinkfile(m, t, e.doneone)))
+		return l
+
+class DistDir:
+	def __init__(self, dir, onelog=True):
+		self.dir = dir
+		self.files = []
+		self.deletes = []
+		self.symlinks = []
+	def queue(self, todo, distdirs, logfile):
+		if not self.dir in distdirs:
+			collection = CollectedDistDir(self.dir)
+			distdirs[self.dir] = collection
+		else:
+			collection = distdirs[self.dir]
+		for fn, fr in self.files:
+			ffn = self.dir + "/" + fn
+			if logfile.alreadydone.get(ffn, "") == "asdotnew":
+				if logfile.enqueue(todo, ffn, Round.INDIRECT):
+					collection.files[ffn] = logfile
+					collection.transfered += 1
+			else:
+				if logfile.enqueue(todo, ffn,
+						Round.DISTFILES, ffn + ".new",
+						fr, collection.onedone):
+					collection.files[ffn] = logfile
+		for fn in self.deletes:
+			ffn = self.dir + "/" + fn
+			if logfile.enqueue(todo, ffn, Round.INDIRECT):
+				collection.deletes[ffn] = logfile
+		for fn, flt in self.symlinks:
+			ffn = self.dir + "/" + fn
+			if logfile.enqueue(todo, ffn, Round.INDIRECT):
+				collection.symlinks[ffn] = (flt, logfile)
+
+class LogFile:
+	def parselogline(self, fields):
+		if fields[0] == 'POOLNEW':
+			if len(fields) != 2:
+				raise ParseErrorWrongCount(fields[0])
+			self.newpoolfiles.append(fields[1])
+		elif fields[0] == 'POOLDELETE':
+			if len(fields) != 2:
+				raise ParseErrorWrongCount(fields[0])
+			self.deletepoolfiles.append(fields[1])
+		elif fields[0].startswith('BEGIN-'):
+			pass
+		elif fields[0].startswith('END-'):
+			pass
+		elif fields[0].startswith('DIST'):
+			command = fields[0][4:]
+			if command not in ['KEEP', 'FILE', 'DELETE', 'SYMLINK']:
+				raise ParseError("Unknown command %s" % command)
+			if not fields[1] in self.dists:
+				d = self.dists[fields[1]] = DistDir(fields[1])
+			else:
+				d = self.dists[fields[1]]
+			if command == 'FILE':
+				if len(fields) != 4:
+					raise ParseErrorWrongCount(fields[0])
+				d.files.append((fields[2], fields[3]))
+			elif command == 'DELETE':
+				if len(fields) != 3:
+					raise ParseErrorWrongCount(fields[0])
+				d.deletes.append(fields[2])
+			elif command == 'SYMLINK':
+				if len(fields) != 4:
+					raise ParseErrorWrongCount(fields[0])
+				d.symlinks.append((fields[2], fields[3]))
+		elif fields[0] == "DONE":
+			self.alreadydone[fields[2]] = fields[1]
+		else:
+			raise ParseError("Unknown command %s" % fields[0])
+	def __init__(self, logfile, donefile):
+		self.alreadydone = dict()
+		self.logfile = logfile
+		self.donefile = donefile
+		try:
+			lf = open(logfile, 'r', encoding='utf-8')
+		except Exception as e:
+			raise CriticalError("Cannot open %s: %s" % (repr(logfile), e))
+		self.newpoolfiles = []
+		self.dists = {}
+		self.deletepoolfiles = []
+		self.todocount = 0
+		for l in lf:
+			if l[-1] != '\n':
+				raise ParseError("not a text file")
+			self.parselogline(l[:-1].split('\t'))
+		lf.close()
+	def queue(self, todo, distdirs):
+		self.todo = set()
+		for f in self.deletepoolfiles:
+			self.enqueue(todo, f, Round.DELETES, f, None, self.doneone)
+		for f in self.newpoolfiles:
+			self.enqueue(todo, f, Round.POOLFILES, f, options.outdir + "/" + f, self.doneone)
+		for d in self.dists.values():
+			d.queue(todo, distdirs, self)
+		if not self.todocount:
+			# nothing to do left, mark as done:
+			os.rename(self.logfile, self.donefile)
+			del self.todo
+		return self.todocount > 0
+	def enqueue(self, dic, elem, *something):
+		if elem in self.alreadydone and self.alreadydone[elem] != "asdotnew":
+			if not elem in dic:
+				dic[elem] = (Round.DONE,)
+			return False
+		elif not elem in dic:
+			self.todo.add(elem)
+			self.todocount += 1
+			dic[elem] = something
+			return True
+		else:
+			self.markpartial(elem, "obsoleted")
+			return False
+	def markpartial(self, filename, message="done"):
+		if options.verbose:
+			print("%s: %s" % (message, repr(filename)))
+		f = open(self.logfile, "a", encoding="utf-8")
+		print("DONE\t%s\t%s" % (message, filename), file=f)
+		f.close()
+	def doneone(self, filename, message="done"):
+		assert (filename in self.todo)
+		self.todo.discard(filename)
+		assert (self.todocount > 0)
+		self.todocount -= 1
+		self.markpartial(filename, message=message)
+		if self.todocount == 0:
+			os.rename(self.logfile, self.donefile)
+		return []
+
+
+def doround(s, r, todo):
+	for p,v in todo.items():
+		assert (isinstance(v[0], Round))
+		if v[0] != r:
+			continue
+		round, filename, source, donefunc = v
+		if round != r:
+			continue
+		if source is None:
+			s.start(sftp.TaskFromGenerator(deletefile(filename, donefunc)))
+		else:
+			s.start(sftp.TaskFromGenerator(writefile(filename, source, donefunc)))
+	s.dispatch()
+
+
+class Options:
+	def __init__(self):
+		self.verbose = None
+		self.pending = False
+		self.autoretry = None
+		self.ignorepending = False
+		self.forceorder = False
+		self.confdir = None
+		self.basedir = None
+		self.outdir = None
+		self.logdir = None
+		self.debugsftp = None
+
+options = Options()
+
+def parseoptions(args):
+	while args and args[0].startswith("--"):
+		arg = args.pop(0)
+		if arg == "--verbose" or arg == "-v":
+			options.verbose = True
+		elif arg.startswith("--debug-sftp="):
+			options.debugsftp = int(arg[13:])
+		elif arg == "--pending":
+			options.pending = True
+		elif arg == "--ignore-pending":
+			options.ignorepending = True
+		elif arg == "--force-order":
+			options.forceorder = True
+		elif arg == "--basedir=":
+			options.basedir = arg[:10]
+		elif arg == "--basedir":
+			options.basedir = args.pop(0)
+		elif arg == "--outdir=":
+			options.outdir = arg[:9]
+		elif arg == "--outdir":
+			options.outdir = args.pop(0)
+		elif arg == "--logdir=":
+			options.logdir = arg[:9]
+		elif arg == "--logdir":
+			options.logdir = args.pop(0)
+		elif arg == "--help":
+			print("""outsftphook.py: an reprepro outhook example using sftp
+This hook sends changed files over sftp to a remote host. It is usually put into
+conf/options as outhook, but may also be called manually.
+Options:
+	--verbose        tell what you did
+	--basedir DIR    sets the following to default values
+	--outdir DIR     directory to find pool/ and dist/ directories in
+	--logdir DIR     directory to check for unprocessed outlog files
+	--pending        process pending files instead of arguments
+	--autoretry      reprocess older pending files, too
+	--ignore-pending ignore pending files
+	--force-order    do not bail out if the given files are not ordered
+	--debug-sftp=N   debug sftp.py (or your remote sftp server)
+""")
+			raise SystemExit(0)
+		else:
+			raise CriticalError("Unexpected command line option %s" %repr(arg))
+	if options.pending and options.ignorepending:
+		raise CriticalError("Cannot do both --pending and --ignore-pending")
+	if options.autoretry and options.forceorder:
+		raise CriticalError("Cannot do both --pending and --force-order")
+	if options.autoretry and options.ignorepending:
+		raise CriticalError("Cannot do both --autoretry and --ignore-pending")
+	# we need confdir, logdir and outdir, if they are given, all is done
+	if options.logdir is not None and options.outdir is not None and options.confdir is not None:
+		return
+	# otherwise it gets more complicated...
+	preconfdir = options.confdir
+	if preconfdir is None:
+		preconfdir = os.environ.get("REPREPRO_CONFIG_DIR", None)
+	if preconfdir is None:
+		if options.basedir is not None:
+			preconfdir = options.basedir + "/conf"
+		elif "REPREPRO_BASE_DIR" in os.environ:
+			preconfdir = os.environ["REPREPRO_BASE_DIR"] + "/conf"
+		else:
+			raise CriticalError("If not called by reprepro, please either give (--logdir and --outdir) or --basedir!")
+	optionsfile = preconfdir + "/options"
+	if os.path.exists(optionsfile):
+		f = open(optionsfile, "r")
+		for line in f:
+			line = line.strip()
+			if len(line) == 0 or line[0] == '#' or line[0] == ';':
+				continue
+			line = line.split()
+			if line[0] == "basedir" and options.basedir is None:
+				options.basedir = line[1]
+			elif line[0] == "confdir" and options.confdir is None:
+				options.confdir = line[1]
+			elif line[0] == "logdir" and options.logdir is None:
+				options.logdir = line[1]
+			elif line[0] == "outdir" and options.outdir is None:
+				options.outdir = line[1]
+		f.close()
+	if options.basedir is None:
+		options.basedir = os.environ.get("REPREPRO_BASE_DIR", None)
+	if options.outdir is None:
+		if options.basedir is None:
+			raise CriticalError("Need --basedir if not called by reprepro")
+		options.outdir = options.basedir
+	if options.logdir is None:
+		if options.basedir is None:
+			raise CriticalError("Need --basedir if not called by reprepro")
+		options.logdir = options.basedir + "/logs"
+	if options.confdir is None:
+		if "REPREPRO_CONFIG_DIR" in os.environ:
+			options.confdir = os.environ["REPREPRO_CONFIG_DIR"]
+		else:
+			if options.basedir is None:
+				raise CriticalError("Need --basedir if not called by reprepro")
+			options.confdir = options.basedir + "/conf"
+
+def main(args):
+	global errors, servername, username, targetdir
+	if "REPREPRO_OUT_DIR" in os.environ or "REPREPRO_LOG_DIR" in os.environ:
+		# assume being called by reprepro if one of those variable
+		# is set, so they all should be set:
+		options.outdir = os.environ["REPREPRO_OUT_DIR"]
+		options.logdir = os.environ["REPREPRO_LOG_DIR"]
+		options.confdir = os.environ["REPREPRO_CONFIG_DIR"]
+	else:
+		parseoptions(args)
+	assert (options.outdir and (options.ignorepending or options.logdir) and options.confdir)
+	conffilename = options.confdir + "/outsftphook.conf"
+	if os.path.exists(conffilename):
+		conffile = open(conffilename, "r")
+		for line in conffile:
+			line = line.strip().split(None, 1)
+			if len(line) == 0 or line[0].startswith("#"):
+				continue
+			if line[0] == "servername":
+				servername = line[1]
+			elif line[0] == "username":
+				username = line[1]
+			elif line[0] == "targetdir":
+				targetdir = line[1]
+			elif line[0] == "debug":
+				if options.debugsftp is None:
+					try:
+						options.debugsftp = int(line[1])
+					except Exception:
+						raise CriticalError(("Cannot parse %s: " +
+						      "unparseable number %s") %
+							    (repr(conffilename), repr(line[1])))
+			elif line[0] == "verbose":
+				if line[1].lower() in {'yes', 'on', '1', 'true'}:
+					if options.verbose is None:
+						options.verbose = True
+				elif line[1].lower() in {'no', 'off', '0', 'false'}:
+					if options.verbose is None:
+						options.verbose = False
+				else:
+					raise CriticalError(("Cannot parse %s: " +
+					      "unparseable truth value %s") %
+						    (repr(conffilename), repr(line[1])))
+			elif line[0] == "autoretry":
+				if line[1].lower() in {'yes', 'on', '1', 'true'}:
+					if options.autoretry is None:
+						options.autoretry = True
+				elif line[1].lower() in {'no', 'off', '0', 'false'}:
+					if options.autoretry is None:
+						options.autoretry = False
+				else:
+					raise CriticalError(("Cannot parse %s: " +
+					      "unparseable truth value %s") %
+						    (repr(conffilename), repr(line[1])))
+			else:
+				raise CriticalError("Cannot parse %s: unknown option %s" %
+						    (repr(conffilename), repr(line[0])))
+		conffile.close()
+	if options.debugsftp is None:
+		options.debugsftp = 0
+	if targetdir and not targetdir.endswith("/"):
+		targetdir = targetdir + "/"
+	if not servername:
+		raise CriticalError("No servername configured!")
+	if not username:
+		raise CriticalError("No username configured!")
+
+	if len(args) <= 0:
+		if not options.pending:
+			raise CriticalError("No .outlog files given at command line!")
+	else:
+		if options.pending:
+			raise CriticalError("--pending might not be combined with arguments!")
+	if options.ignorepending:
+		pendinglogs = set()
+	else:
+		pendinglogs = set(name for name in os.listdir(options.logdir)
+		                       if name.endswith(".outlog"))
+	maxbasename = None
+	for f in args:
+		if len(f) < 8 or f[-7:] != ".outlog":
+			raise CriticalError("command line argument '%s' does not look like a .outlog file!" % f)
+		bn = os.path.basename(f)
+		pendinglogs.discard(bn)
+		if maxbasename:
+			if maxbasename < bn:
+				maxbasename = bn
+			elif not options.forceorder:
+				raise CriticalError("The arguments are not in order (%s <= %s). Applying in this order might not be safe. (use --force-order to proceed in this order anyway)" % (bn, maxbasename))
+		else:
+			maxbasename = bn
+	if options.pending:
+		pendinglogs = sorted(pendinglogs)
+	else:
+		pendinglogs = sorted(filter(lambda bn: bn < maxbasename, pendinglogs))
+		if pendinglogs and not options.autoretry:
+			raise CriticalError("Unprocessed earlier outlogs found: %s\nYou need to process them first (or use --autoretry or autoretry true in outsftphook.conf to automatically process them)" % repr(pendinglogs))
+		if pendinglogs and len(args) > 1:
+			raise CriticalError("autoretry does not work with multiple log files given (yet).")
+	args = list(map(lambda bn: options.logdir + "/" + bn, pendinglogs)) + args
+	outlogfiles = []
+	for f in args:
+		donefile = f[:-7] + ".done"
+		if options.verbose:
+			print("Parsing '%s'" % f)
+		try:
+			outlogfiles.append(LogFile(f, donefile))
+		except ParseError as e:
+			raise CriticalError("Error parsing %s: %s" %(f, str(e)))
+	todo = {}
+	distdirs = {}
+	workpending = False
+	for o in reversed(outlogfiles):
+		workpending |= o.queue(todo, distdirs)
+	if not workpending:
+		if options.verbose:
+			print("Nothing to do")
+		raise SystemExit(0)
+	s = sftp.Connection(servername=servername, username=username, debug=options.debugsftp)
+	doround(s, Round.POOLFILES, todo)
+	if errors:
+		raise SystemExit(1)
+	for d in distdirs.values():
+		for t in d.finalizeifready():
+			s.start(t)
+	doround(s, Round.DISTFILES, todo)
+	if errors:
+		raise SystemExit(1)
+	doround(s, Round.DELETES, todo)
+	if errors:
+		raise SystemExit(1)
+
+try:
+	main(sys.argv[1:])
+except CriticalError as e:
+	print(str(e), file=sys.stderr)
+	raise SystemExit(1)
diff --git a/docs/outstore.py b/docs/outstore.py
new file mode 100755
index 0000000..d0cc14e
--- /dev/null
+++ b/docs/outstore.py
@@ -0,0 +1,237 @@
+#!/usr/bin/python3
+# Copyright (C) 2012 Bernhard R. Link
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02111-1301  USA
+
+# This is an example outhook script.
+# Actually it is part of the testsuite and does many things
+# an actual outhook script would never do.
+# But it checks so many aspects of how a outhook script is called
+# that it should make quite clear what a outhookscript can expect.
+
+import sys, os, subprocess, select, dbm
+
+def poolfile(outdir, name):
+	s = os.lstat(outdir + '/' + name)
+	return "poolfile %d bytes" % s.st_size
+def distfile(outdir, name):
+	s = os.lstat(outdir + '/' + name)
+	return "distfile %d bytes" % s.st_size
+def distsymlink(distdir, target):
+	return "distsymlink -> %s/%s" % (distdir,target)
+def collecteddistfile(outdir, name):
+	if os.path.islink(outdir + '/' + name):
+		l = os.readlink(outdir + '/' + name)
+		d = os.path.dirname(name)
+		while d and l[0:3] == '../':
+			d = os.path.dirname(d)
+			l = l[3:]
+		if d:
+			d = d + '/'
+		return "distsymlink -> %s%s" % (d,l)
+	else:
+		return distfile(outdir, name)
+
+def processfile(logfile, donefile, db):
+	# print("Parsing '%s'" % logfile)
+	lf = open(logfile, 'r', encoding='utf-8')
+	newpoolfiles = []
+	distributions = []
+	deletepoolfiles = []
+	mode = 'POOLNEW'
+	# This parser is wasteful and unnecessarily complicated, but it's
+	# purpose is mainly making sure the output of reprepro is
+	# well-formed and no so much targeted at doing actual work.
+	for l in lf:
+		if l[-1] != '\n':
+			raise CriticalError("Malformed file '%s' (not a text file)" % logfile)
+		l = l[:-1]
+		fields = l.split('\t')
+		if fields[0] != 'POOLNEW':
+			break
+		if len(fields) != 2:
+			raise CriticalError("Malformed file '%s': POOLNEW with more than one argument" % logfile)
+		newpoolfiles.append(fields[1])
+	else:
+		fields = ['EOF']
+	while fields[0] == 'BEGIN-DISTRIBUTION' or fields[0] == 'BEGIN-SNAPSHOT':
+		beginmarker = fields[0]
+		endmarker = 'END-' + beginmarker[6:]
+		if len(fields) != 3 and len(fields) != 4:
+			raise CriticalError("Malformed file '%s': wrong number of arguments for %s" % (logfile,beginmarker))
+		distname = fields[1]
+		distdir = fields[2]
+		distfiles = []
+		distsymlinks = []
+		distdeletes = []
+		for l in lf:
+			if l[-1] != '\n':
+				raise CriticalError("Malformed file '%s' (not a text file)" % logfile)
+			l = l[:-1]
+			fields = l.split('\t')
+			if fields[0] == endmarker:
+				if len(fields) != 3 and len(fields) != 4:
+					raise CriticalError("Malformed file '%s': wrong number of arguments for %s" % (logfile, endmarker))
+				if fields[1] != distname or fields[2] != distdir:
+					raise CriticalError("Malformed file '%s': %s not matching previous %s" % (logfile, endmarker, beginmarker))
+				break
+			elif fields[0] == 'DISTKEEP':
+				continue
+			elif not fields[0] in ['DISTFILE', 'DISTSYMLINK', 'DISTDELETE']:
+				raise CriticalError("Malformed file '%s': Unexpected '%s'" % (logfile, fields[0]))
+			if len(fields) < 3:
+				raise CriticalError("Malformed file '%s': wrong number of arguments for %s" % (logfile, fields[0]))
+			if fields[1] != distdir:
+				raise CriticalError("Malformed file '%s': wrong distdir '%s' in '%s'" %(logfile, fields[1], fields[0]))
+			if fields[0] == 'DISTFILE':
+				if len(fields) != 4:
+					raise CriticalError("Malformed file '%s': wrong number of arguments for %s" % (logfile, fields[0]))
+				distfiles.append((fields[2], fields[3]))
+			elif fields[0] == 'DISTDELETE':
+				if len(fields) != 3:
+					raise CriticalError("Malformed file '%s': wrong number of arguments for %s" % (logfile, fields[0]))
+				distdeletes.append(fields[2])
+			elif fields[0] == 'DISTSYMLINK':
+				if len(fields) != 4:
+					raise CriticalError("Malformed file '%s': wrong number of arguments for %s" % (logfile, fields[0]))
+				distsymlinks.append((fields[2], fields[3]))
+		else:
+			raise CriticalError("Malformed file '%s': unexpected end of file (%s missing)" % (logfile, endmarker))
+		distributions.append((distname, distdir, distfiles, distsymlinks, distdeletes))
+		l = next(lf, 'EOF\n')
+		if l[-1] != '\n':
+			raise CriticalError("Malformed file '%s' (not a text file)" % logfile)
+		l = l[:-1]
+		fields = l.split('\t')
+	while fields[0] == 'POOLDELETE':
+		if len(fields) != 2:
+			raise CriticalError("Malformed file '%s': wrong number of arguments for POOLDELETE" % logfile)
+		deletepoolfiles.append(fields[1])
+		l = next(lf, 'EOF\n')
+		if l[-1] != '\n':
+			raise CriticalError("Malformed file '%s' (not a text file)" % logfile)
+		l = l[:-1]
+		fields = l.split('\t')
+	if fields[0] != 'EOF' or next(lf, None) != None:
+		raise CriticalError("Malformed file '%s': Unexpected command '%s'" % (logfile, fields[0]))
+	# print("Processing '%s'" % logfile)
+	# Checked input to death, no actualy do something
+	outdir = os.environ['REPREPRO_OUT_DIR']
+	for p in newpoolfiles:
+		bp = bytes(p, encoding="utf-8")
+		if bp in db:
+			raise Exception("duplicate pool file %s" % p)
+		db[bp] = poolfile(outdir, p)
+	for distname, distdir, distfiles, distsymlinks, distdeletes in distributions:
+		for name, orig in distfiles:
+			db[distdir + '/' + name] = distfile(outdir, orig)
+		for name, target in distsymlinks:
+			db[distdir + '/' + name] = distsymlink(distdir, target)
+		for name in distdeletes:
+			del db[distdir + '/' + name]
+	for p in deletepoolfiles:
+		bp = bytes(p, encoding="utf-8")
+		if not bp in db:
+			raise Exception("deleting non-existant pool file %s" % p)
+		del db[bp]
+
+def collectfiles(dir, name):
+	for l in os.listdir(dir + '/' + name):
+		n = name + '/' + l
+		if os.path.isdir(dir + '/' + n):
+			for x in collectfiles(dir, n):
+				yield x
+		else:
+			yield n
+
+def collectpool(outdir):
+	if os.path.isdir(outdir + '/pool'):
+		return ["%s: %s" % (filename, poolfile(outdir, filename)) for filename in collectfiles(outdir, 'pool')]
+	else:
+		return []
+
+def collectdists(outdir):
+	if os.path.isdir(outdir + '/dists'):
+		return ["%s: %s" % (filename, collecteddistfile(outdir, filename)) for filename in collectfiles(outdir, 'dists')]
+	else:
+		return []
+
+def showdiff(i1, i2):
+	clean = True
+	l1 = next(i1, None)
+	l2 = next(i2, None)
+	while l1 or l2:
+		if l1 == l2:
+			l1 = next(i1, None)
+			l2 = next(i2, None)
+		elif l1 != None and (l2 == None or l1 < l2):
+			print("+ %s" % l1)
+			clean = False
+			l1 = next(i1, None)
+		elif l2 != None and (l1 == None or l1 > l2):
+			print("- %s" % l2)
+			clean = False
+			l2 = next(i2, None)
+		else:
+			raise("unexpected")
+	return clean
+
+def check(db):
+	outdir = os.environ['REPREPRO_OUT_DIR']
+	actualfiles = collectpool(outdir)
+	actualfiles.extend(collectdists(outdir))
+
+	expectedfiles = []
+	for k in db.keys():
+		expectedfiles.append("%s: %s" % (k.decode(encoding='utf-8'), db[k].decode(encoding='utf-8')))
+	expectedfiles.sort()
+	actualfiles.sort()
+	if not showdiff(iter(expectedfiles), iter(actualfiles)):
+		raise CriticalError("outdir does not match expected state")
+
+class CriticalError(Exception):
+	pass
+
+def main(args):
+	if len(args) <= 0:
+		raise CriticalError("No .outlog files given at command line!")
+
+	if len(args) == 1 and args[0] == '--print':
+		db = dbm.open(os.environ['REPREPRO_OUT_DB'], 'r')
+		for k in sort(db.keys()):
+			print("%s: %s" % (k, db[k]))
+		return
+	if len(args) == 1 and args[0] == '--check':
+		db = dbm.open(os.environ['REPREPRO_OUT_DB'], 'r')
+		check(db)
+		return
+
+	for f in args:
+		if len(f) < 8 or f[-7:] != ".outlog":
+			raise CriticalError("command line argument '%s' does not look like a .outlog file!" % f)
+
+	db = dbm.open(os.environ['REPREPRO_OUT_DB'], 'c')
+
+	for f in args:
+		donefile = f[:-7] + ".outlogdone"
+		if os.path.exists(donefile):
+			print("Ignoring '%s' as '%s' already exists!" % (f,donefile), file=sys.stderr)
+			continue
+		processfile(f, donefile, db)
+
+try:
+	main(sys.argv[1:])
+except CriticalError as e:
+	print(str(e), file=sys.stderr)
+	raise SystemExit(1)
diff --git a/docs/pdiff.example b/docs/pdiff.example
new file mode 100755
index 0000000..bf58d64
--- /dev/null
+++ b/docs/pdiff.example
@@ -0,0 +1,255 @@
+#!/usr/bin/env python3
+
+# Note that rrdtool can also generate .diff files and
+# is usually more efficient at it than this script
+
+#############################################################################
+# generates partial package updates list as reprepro hook
+# (to be used by apt-get >= 0.6.44, apt-qupdate or things compatible with that)
+
+# changes Copyright 2005 Bernhard R. Link <brlink@debian.org>
+# as this is used as hook, it does not need any parsing of
+# Configuration or Handling of architectures and components.
+# Also reprepro will present old and new file, so it does not
+# need to store a permanent copy of the last version.
+# This needs either python3-apt installed or you have to change
+# it to use another sha1 calculation method.
+
+# HOW TO USE:
+# - install python3-apt
+# - make sure your paths contain no ' characters.
+# - be aware this is still quite experimental and might not
+#   report some errors properly
+# - uncompress this file if it is compressed
+# - copy this file to your conf/ directory as "pdiff"
+# - make it executable
+# - add something like the following to the every distribution
+#   in conf/distributions you want to have diffs for:
+#
+# DscIndices: Sources Release . .gz pdiff
+# DebIndices: Packages Release . .gz pdiff
+#
+# The first line is for source indices, the second for binary indices.
+# Make sure uncompressed index files are generated (the single dot in those
+# lines), as this version only diffs the uncompressed files.
+
+# This file is a heavily modified version of apt-qupdate's tiffany,
+# (downloaded from http://ftp-master.debian.org/~ajt/tiffani/tiffany
+#  2005-02-20)which says:
+#--------------------------------------------------------------------
+# idea and basic implementation by Anthony, some changes by Andreas
+# parts are stolen from ziyi
+#
+# Copyright (C) 2004-5  Anthony Towns <aj@azure.humbug.org.au>
+# Copyright (C) 2004-5  Andreas Barth <aba@not.so.argh.org>
+#--------------------------------------------------------------------
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+#############################################################################
+
+import sys, os, time
+import apt_pkg
+
+################################################################################
+
+def usage (exit_code=0):
+    print("""Usage: pdiff.example directory newfile oldfile mode 3>releaselog
+Write out ed-style diffs to Packages/Source lists
+This file is intended to be called by reprepro as hook
+given to DebIndices, UDebIndices or DscIndices.
+
+    """)
+    sys.exit(exit_code);
+
+
+def tryunlink(file):
+    try:
+        os.unlink(file)
+    except OSError:
+        print("warning: removing of %s denied" % (file))
+
+class Updates:
+    def __init__(self, readpath = None):
+        self.can_path = None
+        self.history = {}
+        self.max = 14
+        self.readpath = readpath
+        self.filesizesha1 = None
+
+        if readpath:
+          try:
+            f = open(readpath + "/Index")
+            x = f.readline()
+
+            def read_hashs(ind, f, self, x=x):
+                while 1:
+                    x = f.readline()
+                    if not x or x[0] != " ": break
+                    l = x.split()
+                    if l[2] not in self.history:
+                        self.history[l[2]] = [None,None]
+                    self.history[l[2]][ind] = (l[0], int(l[1]))
+                return x
+
+            while x:
+                l = x.split()
+
+                if len(l) == 0:
+                    x = f.readline()
+                    continue
+
+                if l[0] == "SHA1-History:":
+                    x = read_hashs(0,f,self)
+                    continue
+
+                if l[0] == "SHA1-Patches:":
+                    x = read_hashs(1,f,self)
+                    continue
+
+                if l[0] == "Canonical-Name:" or l[0]=="Canonical-Path:":
+                    self.can_path = l[1]
+
+                if l[0] == "SHA1-Current:" and len(l) == 3:
+                    self.filesizesha1 = (l[1], int(l[2]))
+
+                x = f.readline()
+
+          except IOError:
+            0
+
+    def dump(self, out=sys.stdout):
+        if self.can_path:
+            out.write("Canonical-Path: %s\n" % (self.can_path))
+
+        if self.filesizesha1:
+            out.write("SHA1-Current: %s %7d\n" % (self.filesizesha1))
+
+        hs = self.history
+        l = list(self.history.keys())
+        l.sort()
+
+        cnt = len(l)
+        if cnt > self.max:
+            for h in l[:cnt-self.max]:
+                tryunlink("%s/%s.gz" % (self.readpath, h))
+                del hs[h]
+            l = l[cnt-self.max:]
+
+        out.write("SHA1-History:\n")
+        for h in l:
+            out.write(" %s %7d %s\n" % (hs[h][0][0], hs[h][0][1], h))
+        out.write("SHA1-Patches:\n")
+        for h in l:
+            out.write(" %s %7d %s\n" % (hs[h][1][0], hs[h][1][1], h))
+
+def sizesha1(f):
+    size = os.fstat(f.fileno())[6]
+    f.seek(0)
+    sha1sum = apt_pkg.sha1sum(f)
+    return (sha1sum, size)
+
+def getsizesha1(name):
+    f = open(name, "r")
+    r = sizesha1(f)
+    f.close()
+    return r
+
+def main():
+    if len(sys.argv) != 5:
+        usage(1)
+
+    directory = sys.argv[1]
+    newrelfile = sys.argv[2]
+    oldrelfile = sys.argv[3]
+    mode = sys.argv[4]
+
+    # this is only needed with reprepro <= 0.7
+    if oldrelfile.endswith(".gz"):
+        sys.exit(0);
+
+
+    oldfile = "%s/%s" % (directory,oldrelfile)
+    newfile= "%s/%s" % (directory,newrelfile)
+
+    outdir = oldfile + ".diff"
+
+    if mode == "old":
+        # Nothing to do...
+        if os.path.isfile(outdir + "/Index"):
+            os.write(3,(oldrelfile + ".diff/Index").encode("utf-8"))
+        sys.exit(0);
+
+    if mode == "new":
+        # TODO: delete possible existing Index and patch files?
+        sys.exit(0);
+
+    print("making diffs between %s and %s: " % (oldfile, newfile))
+
+    o = os.popen("date +%Y-%m-%d-%H%M.%S")
+    patchname = o.readline()[:-1]
+    o.close()
+    difffile = "%s/%s" % (outdir, patchname)
+
+    upd = Updates(outdir)
+
+    oldsizesha1 = getsizesha1(oldfile)
+
+    # should probably early exit if either of these checks fail
+    # alternatively (optionally?) could just trim the patch history
+
+    if upd.filesizesha1:
+        if upd.filesizesha1 != oldsizesha1:
+            print("old file seems to have changed! %s %s => %s %s" % (upd.filesizesha1 + oldsizesha1))
+            sys.exit(1);
+
+    newsizesha1 = getsizesha1(newfile)
+
+    if newsizesha1 == oldsizesha1:
+        print("file unchanged, not generating diff")
+        if os.path.isfile(outdir + "/Index"):
+            os.write(3,(oldrelfile + ".diff/Index\n").encode("utf-8"))
+    else:
+        if not os.path.isdir(outdir): os.mkdir(outdir)
+        print("generating diff")
+        while os.path.isfile(difffile + ".gz"):
+            print("This was too fast, diffile already there, waiting a bit...")
+            time.sleep(2)
+            o = os.popen("date +%Y-%m-%d-%H%M.%S")
+            patchname = o.readline()[:-1]
+            o.close()
+            difffile = "%s/%s" % (outdir, patchname)
+
+        # TODO make this without shell...
+        os.system("diff --ed '%s' '%s' > '%s'" %
+                         (oldfile,newfile, difffile))
+        difsizesha1 = getsizesha1(difffile)
+        # TODO dito
+        os.system("gzip -9 '%s'" %difffile)
+
+
+        upd.history[patchname] = (oldsizesha1, difsizesha1)
+        upd.filesizesha1 = newsizesha1
+
+        f = open(outdir + "/Index.new", "w")
+        upd.dump(f)
+        f.close()
+# Specifying the index should be enough, it contains checksums for the diffs
+        os.write(3,(oldrelfile + ".diff/Index.new\n").encode("utf-8"))
+
+################################################################################
+
+if __name__ == '__main__':
+    main()
diff --git a/docs/recovery b/docs/recovery
new file mode 100644
index 0000000..80740c0
--- /dev/null
+++ b/docs/recovery
@@ -0,0 +1,67 @@
+Some tips what to do if (hopefully never), your database gets
+corrupted:
+
+First there are three different databases used, residing in three
+files in your --dbdir (normally db/):
+
+1) references.db
+This file only contains the information which file in the pool/
+is needed by which target (i.e. which type/distribution/
+component/architecture quadruple). This is simply repairable by
+deleting references.db and running "rereference".
+
+The current state of this database can be seen with "dumpreferences".
+All references from some specific target can be removed with
+"_removereferences".
+
+2) files.db and checksums.db
+These files contain the information about which files in the pool/ dir
+are known and what checksums they have. Files not in here will not be
+deleted with "deleteunreferenced". Files being wrong here will not realized
+(and thus not corrected even if told to be newly included)
+
+If both files exist, files.db is the canonical information and checksums.db
+can be regenerated with a call to collectnewchecksums.
+If only checksums.db is there, only that it used. (This means: if you
+have called collectnewchecksums since you last used a version prior to 3.3
+with this repository, you can just delete files.db. But make sure to
+never ever use a version prior to 3.0 on this repository after that.)
+
+To get this database in text form use "_listchecksums" without argument,
+to add items manually pipe it into "_addchecksums". (Filenames
+are handled as strings, so be careful).
+
+If the database is completely lost or broken, you can regain it by moving
+files.db and checksums.db out of the way and running:
+find $BASEDIR/pool -type f -printf "pool/%P\n" | reprepro -b $BASEDIR _detect
+(or cd $BASEDIR && find pool -type f -print | reprepro -b . _detect)
+
+Also single files can be removed or added by "_forget" and "_detect".
+(Again note filekeys will be handled as strings, so leading "./", double
+ slashes, "/./", symlinks  and the like make them differ).
+
+4) packages.db
+This file contains multiple databases, one for each target, containing
+the chunks from the Packages or Sources files, indexed by package name.
+
+This one is the hardest to reconstruct. If you have still an uncorrupted
+"dists/" directory around, (e.g. you just deleted db/ accidentally),
+it can be reconstructed by moving your dists/ directory to some other place, 
+moving the packages.db file (if still existent) away, and set every distribution 
+in conf/distributions a "Update: localreadd" with localreadd in conf/updates like:
+Name: localreadd
+Suite: *
+Method: copy:/<otherplace>
+
+with otherplace being the place you moved the dists/ directory too.
+
+If the packages database is corrupt, the described way can at least reconstruct
+the Packages still landing in the Packages.gz and Sources.gz files.
+If references.db is still accessible via dumpreferences, it can give hints
+where the other files belong to. Otherwise removing references.db and calling
+"rereference" and then "dumpunreferenced" will give you a list of files not
+yet anywhere.
+
+Last but not least, there are also the "check" and "checkpool" commands, which
+can give some hints about inconsistencies. (Check will also read files missing
+from files.db+checksums.db if they are needed by packages but in the pool).
diff --git a/docs/reprepro.1 b/docs/reprepro.1
new file mode 100644
index 0000000..34f1a3c
--- /dev/null
+++ b/docs/reprepro.1
@@ -0,0 +1,2847 @@
+.TH REPREPRO 1 "2013-05-04" "reprepro" REPREPRO
+.SH NAME
+reprepro \- produce, manage and sync a local repository of Debian packages
+.mso www.tmac
+.SH SYNOPSIS
+.B reprepro \-\-help
+
+.B reprepro
+[
+\fIoptions\fP
+]
+\fIcommand\fP
+[
+\fIper\-command\-arguments\fP
+]
+.SH DESCRIPTION
+reprepro is a tool to manage a repository of Debian packages
+(.deb, .udeb, .dsc, ...).
+It stores files either being injected manually or
+downloaded from some other repository (partially) mirrored
+into a pool/ hierarchy.
+Managed packages and checksums of files are stored in a
+Berkeley DB database file,
+so no database server is needed.
+Checking signatures of mirrored repositories and creating
+signatures of the generated Package indices is supported.
+
+Former working title of this program was mirrorer.
+.SH "GLOBAL OPTIONS"
+Options can be specified before the command. Each affects a different
+subset of commands and is ignored by other commands.
+.TP
+.B \-h \-\-help
+Displays a short list of options and commands with description.
+.TP
+.B \-v, \-V, \-\-verbose
+Be more verbose. Can be applied multiple times. One uppercase
+.B \-V
+counts as five lowercase
+.B \-v.
+.TP
+.B \-\-silent
+Be less verbose. Can be applied multiple times. One
+.B \-v
+and one
+.B \-s
+cancel each other out.
+.TP
+.B \-f, \-\-force
+This option is ignored, as it no longer exists.
+.TP
+.B \-b, \-\-basedir \fIbasedir\fP
+Sets the base\-dir all other default directories are relative to.
+If none is supplied and the
+.B REPREPRO_BASE_DIR
+environment variable is not set either, the current directory
+will be used.
+.TP
+.B \-\-outdir \fIoutdir\fP
+Sets the base\-dir of the repository to manage, i.e. where the
+.B pool/
+subdirectory resides. And in which the
+.B dists/
+directory is placed by default.
+If this starts with '\fB+b/\fP', it is relative to basedir.
+
+The default for this is \fIbasedir\fP.
+.TP
+.B \-\-confdir \fIconfdir\fP
+Sets the directory where the configuration is searched in.
+
+If this starts with '\fB+b/\fP', it is relative to basedir.
+
+If none is given, \fB+b/conf\fP (i.e. \fIbasedir\fP\fB/conf\fP) will be used.
+.TP
+.B \-\-distdir \fIdistdir\fP
+Sets the directory to generate index files relatively to. (i.e. things like
+Packages.gz, Sources.gz and Release.gpg)
+
+If this starts with '\fB+b/\fP', it is relative to basedir,
+if starting with '\fB+o/\fP' relative to outdir.
+
+If none is given, \fB+o/dists\fP (i.e. \fIoutdir\fP\fB/dists\fP) is used.
+
+.B Note:
+apt has
+.B dists
+hard-coded in it, so this is mostly only useful for testing or when your webserver
+pretends another directory structure than your physical layout.
+
+.B Warning:
+Beware when changing this forth and back between two values not ending
+in the same directory.
+Reprepro only looks if files it wants are there. If nothing of the content
+changed and there is a file it will not touch it, assuming it is the one it
+wrote last time, assuming any different \fB\-\-distdir\fP ended in the same
+directory.
+So either clean a directory before setting \fB\-\-distdir\fP to it or
+do an \fBexport\fP with the new one first to have a consistent state.
+.TP
+.B \-\-logdir \fIlogdir\fP
+The directory where files generated by the \fBLog:\fP directive are
+stored if they have no absolute path.
+
+If this starts with '\fB+b/\fP', it is relative to basedir,
+if starting with '\fB+o/\fP' relative to outdir,
+with '\fB+c/\fP' relative to confdir.
+
+If none is given, \fB+b/logs\fP (i.e. \fIbasedir\fP\fB/logs\fP) is used.
+.TP
+.B \-\-dbdir \fIdbdir\fP
+Sets the directory where reprepro keeps its databases.
+
+If this starts with '\fB+b/\fP', it is relative to basedir,
+if starting with '\fB+o/\fP' relative to outdir,
+with '\fB+c/\fP' relative to confdir.
+
+If none is given, \fB+b/db\fP (i.e. \fIbasedir\fP\fB/db\fP) is used.
+
+.B Note:
+This is permanent data, no cache. One has almost to regenerate the whole
+repository when this is lost.
+.TP
+.B \-\-listdir \fIlistdir\fP
+Sets the directory where it downloads indices to when importing
+from other repositories. This is temporary data and can be safely deleted
+when not in an update run.
+
+If this starts with '\fB+b/\fP', it is relative to basedir,
+if starting with '\fB+o/\fP' relative to outdir,
+with '\fB+c/\fP' relative to confdir.
+
+If none is given, \fB+b/lists\fP (i.e. \fIbasedir\fP\fB/lists\fP) is used.
+.TP
+.B \-\-morguedir \fImorguedir\fP
+Files deleted from the pool are stored into \fImorguedir\fP.
+
+If this starts with '\fB+b/\fP', it is relative to basedir,
+if starting with '\fB+o/\fP' relative to outdir,
+with '\fB+c/\fP' relative to confdir.
+
+If none is given, deleted files are just deleted.
+.TP
+.B \-\-methoddir \fImethoddir\fP
+Look in \fImethoddir\fP instead of
+.B /usr/lib/apt/methods
+for methods to call when importing from other repositories.
+.TP
+.B \-C, \-\-component \fIcomponents\fP
+Limit the specified command to this components only.
+This will force added packages to this components,
+limit removing packages from this components,
+only list packages in this components,
+and/or otherwise only look at packages in this components,
+depending on the command in question.
+
+Multiple components are specified by separating them with \fB|\fP,
+as in \fB\-C 'main|contrib'\fP.
+.TP
+.B \-A, \-\-architecture \fIarchitectures\fP
+Limit the specified command to this architectures only.
+(i.e. only list such packages,
+only remove packages from the specified architectures,
+or otherwise only look at/act on this architectures
+depending on the specific command).
+
+Multiple architectures are specified by separating them with \fB|\fP,
+as in \fB\-A 'sparc|i386'\fP.
+
+Note that architecture \fBall\fP packages can be included to each
+architecture but are then handled separately.
+Thus by using \fB\-A\fP in a specific way one can have different versions of
+an architecture \fBall\fP package in different architectures of the
+same distribution.
+.TP
+.B \-T, \-\-type \fRdsc|deb|udeb
+Limit the specified command to this packagetypes only.
+(i.e. only list such packages, only remove such packages, only include
+such packages, ...)
+.TP
+.B \-S, \-\-section \fIsection\fP
+Overrides the section of inclusions. (Also override possible override files)
+.TP
+.B \-P, \-\-priority \fIpriority\fP
+Overrides the priority of inclusions. (Also override possible override files)
+.TP
+.BR \-\-export= ( silent\-never | never | changed | lookedat | force )
+This option specify whether and how the high level actions
+(e.g. install, update, pull, delete)
+should export the index files of the distributions they work with.
+.TP
+.BR \-\-export=lookedat
+In this mode every distribution the action handled will be exported,
+unless there was an error possibly corrupting it.
+.br
+\fINote\fP that only missing files and files whose intended content changed
+between before and after the action will be written.
+To get a guaranteed current export, use the \fBexport\fP action.
+.br
+For backwards compatibility, \fBlookedat\fP is also available under the
+old name \fBnormal\fP.
+The name \fBnormal\fP is deprecated and will be removed in future versions.
+.TP
+.BR \-\-export=changed
+In this mode every distribution actually changed will be exported,
+unless there was an error possibly corrupting it.
+(i.e. if nothing changed, not even missing files will be created.)
+.br
+\fINote\fP that only missing files and files whose intended content changed
+between before and after the action will be written.
+To get a guaranteed current export, use the \fBexport\fP action.
+.TP
+.BR \-\-export=force
+Always export all distributions looked at, even if there was some
+error possibly bringing it into a inconsistent state.
+.TP
+.BR \-\-export=never
+No index files are exported. You will have to call \fBexport\fP later.
+.br
+\fINote\fP that you most likely additionally need the \fB\-\-keepunreferencedfiles\fP
+option, if you do not want some of the files pointed to by the untouched index
+files to vanish.
+.TP
+.BR \-\-export=silent-never
+Like never, but suppress most output about that.
+.TP
+.B \-\-ignore=\fIwhat\fP
+Ignore errors of type \fIwhat\fP. See the section \fBERROR IGNORING\fP
+for possible values.
+.TP
+.B \-\-nolistsdownload
+When running \fBupdate\fP, \fBcheckupdate\fP or \fBpredelete\fP do not download
+any Release or index files.
+This is hardly useful except when you just run one of those
+command for the same distributions.
+And even then reprepro is usually good in
+not downloading except \fBRelease\fP and \fBRelease.gpg\fP files again.
+.TP
+.B \-\-nothingiserror
+If nothing was done, return with exitcode 1 instead of the usual 0.
+
+Note that "nothing was done" means the primary purpose of the action
+in question.
+Auxiliary actions (opening and closing the database, exporting missing
+files with \-\-export=lookedat, ...) usually do not count.
+Also note that this is not very well tested.
+If you find an action that claims to have done something in some cases
+where you think it should not, please let me know.
+.TP
+.B \-\-keeptemporaries
+Do not delete temporary \fB.new\fP files when exporting a distribution
+fails.
+(reprepro first create \fB.new\fP files in the \fBdists\fP directory and
+only if everything is generated, all files are put into their final place
+at once.
+If this option is not specified and something fails, all are deleted
+to keep \fBdists\fP clean).
+.TP
+.B \-\-keepunreferencedfiles
+Do not delete files that are no longer used because the package they
+are from is deleted/replaced with a newer version from the last distribution
+it was in.
+.TP
+.B \-\-keepunusednewfiles
+The include, includedsc, includedeb and processincoming by default delete
+any file they added to the pool that is not marked used at the end of the
+operation.
+While this keeps the pool clean and allows changing before trying to add again,
+this needs copying and checksum calculation every time one tries to add a file.
+.TP
+.B \-\-keepdirectories
+Do not try to rmdir parent directories after files or directories
+have been removed from them.
+(Do this if your directories have special permissions you want keep,
+do not want to be pestered with warnings about errors to remove them,
+or have a buggy rmdir call deleting non-empty directories.)
+.TP
+.B \-\-ask\-passphrase
+Ask for passphrases when signing things and one is needed. This is a quick
+and dirty and unsafe implementation using the obsolete \fBgetpass(3)\fP
+function with the description gpgme is supplying.
+So the prompt will look quite funny and support for passphrases with
+more than 8 characters depend on your libc.
+Use of this option is not recommended. Use gpg-agent with pinentry instead.
+
+(With current versions of gnupg you need to set \fBpinentry-mode loopback\fP
+in your .gnupg/gpg.conf file to use \fB\-\-ask\-passphrase\fP.
+Without that option gnupg uses the much safer and recommended pinentry instead).
+.TP
+.B \-\-noskipold
+When updating do not skip targets where no new index files and no files
+marked as already processed are available.
+
+If you changed a script to preprocess downloaded index files or
+changed a Listfilter, you most likely want to call reprepro with \-\-noskipold.
+.TP
+.B \-\-waitforlock \fIcount
+If there is a lockfile indicating another instance of reprepro is currently
+using the database, retry \fIcount\fP times after waiting for 10 seconds
+each time.
+The default is 0 and means to error out instantly.
+.TP
+.B \-\-spacecheck full\fR|\fPnone
+The default is \fBfull\fR:
+.br
+In the update commands, check for every to be downloaded file which filesystem
+it is on and how much space is left.
+.br
+To disable this behaviour, use \fBnone\fP.
+.TP
+.BI \-\-dbsafetymargin " bytes-count"
+If checking for free space, reserve \fIbyte-count\fP bytes on the filesystem
+containing the \fBdb/\fP directory.
+The default is 104857600 (i.e. 100MB), which is quite large.
+But as there is no way to know in advance how large the databases will
+grow and libdb is extremely touchy in that regard, lower only when you know
+what you do.
+.TP
+.BI \-\-safetymargin " bytes-count"
+If checking for free space, reserve \fIbyte-count\fP bytes on filesystems
+not containing the \fBdb/\fP directory.
+The default is 1048576 (i.e. 1MB).
+.TP
+.B \-\-noguessgpgtty
+Don't set the environment variable
+.BR GPG_TTY ,
+even when it is not set, stdin is terminal and
+.B /proc/self/fd/0
+is a readable symbolic link.
+.TP
+.B \-\-gnupghome
+Set the
+.B GNUPGHOME
+evnironment variable to the given directory as argument to this option.
+And your gpg will most likely use the content of this variable
+instead of "~/.gnupg".
+Take a look at
+.BR gpg (1)
+to be sure.
+This option in the command line is usually not very useful, as it is possible
+to set the environment variable directly.
+Its main reason for existence is that it can be used in \fIconf\fP\fB/options\fP.
+.TP
+.BI \-\-gunzip " gz-uncompressor"
+While reprepro links against \fBlibz\fP, it will look for the program given
+with this option (or \fBgunzip\fP if not given) and use that when uncompressing
+index files while downloading from remote repositories.
+(So that downloading and uncompression can happen at the same time).
+If the program is not found or is \fBNONE\fP (all-uppercase) then uncompressing
+will always be done using the built in uncompression method.
+The program has to accept the compressed file as stdin and write
+the uncompressed file into stdout.
+.TP
+.BI \-\-bunzip2 " bz2-uncompressor"
+When uncompressing downloaded index files or if not linked against \fBlibbz2\fP
+reprepro will use this program to uncompress \fB.bz2\fP files.
+The default value is \fBbunzip2\fP.
+If the program is not found or is \fBNONE\fP (all-uppercase) then uncompressing
+will always be done using the built in uncompression method or not be possible
+if not linked against \fBlibbz2\fP.
+The program has to accept the compressed file as stdin and write
+the uncompressed file into stdout.
+.TP
+.BI \-\-unlzma " lzma-uncompressor"
+When uncompressing downloaded index files or if not linked against \fBliblzma\fP
+reprepro will use this program to uncompress \fB.lzma\fP files.
+The default value is \fBunlzma\fP.
+If the program is not found or is \fBNONE\fP (all-uppercase)
+then uncompressing lzma files will always be done using
+the built in uncompression method
+or not be possible if not linked against \fBliblzma\fP.
+The program has to accept the compressed file as stdin and write
+the uncompressed file into stdout.
+.TP
+.BI \-\-unxz " xz-uncompressor"
+When uncompressing downloaded index files or if not linked against \fBliblzma\fP
+reprepro will use this program to uncompress \fB.xz\fP files.
+The default value is \fBunxz\fP.
+If the program is not found or is \fBNONE\fP (all-uppercase)
+then uncompressing xz files will always be done using
+the built in uncompression method
+or not be possible if not linked against \fBliblzma\fP.
+The program has to accept the compressed file as stdin and write
+the uncompressed file into stdout.
+.TP
+.BI \-\-lunzip " lzip-uncompressor"
+When trying to uncompress or read \fPlzip\fP compressed files, this program
+will be used.
+The default value is \fBlunzip\fP.
+If the program is not found or is \fBNONE\fP (all-uppercase) then uncompressing
+lz files will not be possible.
+The program has to accept the compressed file as stdin and write
+the uncompressed file into stdout.
+Note that .lz support is \fBDEPRECATED\fP and will be removed in the future.
+.TP
+.BI \-\-list\-max " count"
+Limits the output of \fBlist\fP, \fBlistmatched\fP and \fBlistfilter\fP to the first \fIcount\fP
+results.
+The default is 0, which means unlimited.
+.TP
+.BI \-\-list\-skip " count"
+Omitts the first \fIcount\fP results from the output of
+\fBlist\fP, \fBlistmatched\fP and \fBlistfilter\fP.
+.TP
+.BI \-\-list\-format " format"
+Set the output format of \fBlist\fP, \fBlistmatched\fP and \fBlistfilter\fP commands.
+The format is similar to dpkg\-query's \fB\-\-showformat\fP:
+fields are specified as
+.BI ${ fieldname }
+or
+.BI ${ fieldname ; length }\fR.\fP
+Zero length or no length means unlimited.
+Positive numbers mean fill with spaces right, negative fill with spaces left.
+
+.BR \[rs]n ", " \[rs]r ", " \[rs]t ", " \[rs]0
+are new-line, carriage-return, tabulator and zero-byte.
+Backslash (\fB\[rs]\fP) can be used to escape every non-letter-or-digit.
+
+The special field names
+.BR $identifier ", " $architecture ", " $component ", " $type ", " $codename
+denote where the package was found.
+
+The special field names
+.BR $source " and " $sourceversion
+denote the source and source version a package belongs to.
+(i.e.
+.B ${$source}
+will either be the same as
+.B ${source}
+(without a possible version in parentheses at the end)
+or the same as
+.BR ${package} .
+
+The special field names
+.BR $basename ", " $filekey " and " $fullfilename
+denote the first package file part of this entry
+(i.e. usually the .deb, .udeb or .dsc file)
+as basename, as filekey (filename relative to the outdir)
+and the full filename with outdir prepended
+(i.e. as relative or absolute as your
+outdir (or basedir if you did not set outdir) is).
+
+When \fB\-\-list\-format\fP is not given or \fBNONE\fP, then the default
+is equivalent to
+.br
+.BR "${$identifier} ${package} ${version}\[rs]n" .
+
+Escaping digits or letters not in above list,
+using dollars not escaped outside specified constructs,
+or any field names not listed as special and not consisting entirely out of
+letters, digits and minus signs have undefined behaviour
+and might change meaning without any further notice.
+
+If you give this option on the command line,
+don't forget that $ is also interpreted by your shell.
+So you have to properly escape it.
+For example by putting the whole argument to \-\-list\-format in single quotes.
+.TP
+.B \-\-show\-percent
+When downloading packages, show each completed percent of completed package
+downloads together with the size of completely downloaded packages.
+(Repeating this option increases the frequency of this output).
+.TP
+.B \-\-onlysmalldeletes
+The pull and update commands will skip every distribution in which one
+target loses more than 20% of its packages (and at least 10).
+
+Using this option (or putting it in the options config file) can
+avoid removing large quantities of data but means you might often
+give
+.B \-\-noonlysmalldeletes
+to override it.
+.TP
+.B \-\-restrict \fIsrc\fP\fR[\fP=\fIversion\fP\fR|\fP:\fItype\fP\fR]\fP
+Restrict a \fBpull\fP or \fBupdate\fP to only act on packages belonging
+to source-package \fIsrc\fP.
+Any other package will not be updated (unless it matches a \fB\-\-restrict\-bin\fP).
+Only packages that would otherwise be updated or are at least marked with \fBhold\fP
+in a \fBFilterList\fP or \fBFilerSrcList\fP will be updated.
+
+The action can be restricted to a source version using a equal sign or
+changed to another type (see FilterList) using a colon.
+
+This option can be given multiple times to list multiple packages, but each
+package may only be named once (even when there are different versions or types).
+.TP
+.B \-\-restrict\-binary \fIname\fP\fR[\fP=\fIversion\fP\fR|\fP:\fItype\fP\fR]\fP
+Like \fB\-\-restrict\fP but restrict to binary packages (\fB.deb\fP and \fB.udeb\fP).
+Source packages are not upgraded unless they appear in a \fB\-\-restrict\fP.
+.TP
+.B \-\-restrict\-file \fIfilename\fP
+Like \fB\-\-restrict\fP but read a whole file in the \fBFilterSrcList\fP format.
+.TP
+.B \-\-restrict\-file\-bin \fIfilename\fP
+Like \fB\-\-restrict\-bin\fP but read a whole file in the \fBFilterList\fP format.
+.TP
+.B \-\-endhook \fIhookscript\fP
+
+Run the specified \fIhookscript\fP once reprepro exits.
+It will get the usual \fBREPREPRO_\fP* environment variables set (or unset)
+and additionally a variable \fBREPREPRO_EXIT_CODE\fP that is the exit code
+with which reprepro would have exited (the hook is always called once the
+initial parsing of global options and the command name is done, no matter
+if reprepro did anything or not).
+Reprepro will return to the calling process with the exitcode of this script.
+Reprepro has closed all its databases and removed all its locks,
+so you can run reprepro again in this script
+(unless someone else did so in the same repository before, of course).
+
+The only advantage over running that command always directly after reprepro
+is that you can some environment variables set and cannot so easily forget
+it if this option is in conf/options.
+
+The script is supposed to be located relative to \fIconfdir\fP, unless its
+name starts with \fB/\fP, \fB./\fP, \fB+b/\fP, \fB+o/\fP, or \fB+c/\fP
+and the name may not start (except in the cases given before) with a \fB+\fP.
+
+An example script looks like: \fB
+ #!/bin/sh
+ 
+ if [ "$REPREPRO_EXIT_CODE" \-ne 0 ] ; then
+ 	exit "$REPREPRO_EXIT_CODE"
+ fi
+ 
+ echo "congratulations, reprepro with arguments: $*"
+ echo "seems to have run successfully. REPREPRO_ part of the environment is:"
+ set | grep ^REPREPRO_
+ 
+ exit 0
+ \fP
+.TP
+.B \-\-outhook \fIhookscript\fP
+\fIhookscript\fP is called with a \fB.outlog\fP file as argument (located
+in \fIlogdir\fP) containing a description of all changes made to \fIoutdir\fP.
+
+The script is supposed to be located relative to \fIconfdir\fP, unless its
+name starts with \fB/\fP, \fB./\fP, \fB+b/\fP, \fB+o/\fP, or \fB+c/\fP
+and the name may not start (except in the cases given before) with a \fB+\fP.
+
+For a format of the \fB.outlog\fP files generated for this script see the
+\fBmanual.html\fP shipped with reprepro.
+.SH COMMANDS
+.TP
+.BR export " [ " \fIcodenames\fP " ]"
+Generate all index files for the specified distributions.
+
+This regenerates all files unconditionally.
+It is only useful if you want to be sure \fBdists\fP is up to date,
+you called some other actions with \fB\-\-export=never\fP before or
+you want to create an initial empty but fully equipped
+.BI dists/ codename
+directory.
+.TP
+.RB " [ " \-\-delete " ] " createsymlinks " [ " \fIcodenames\fP " ]"
+Creates \fIsuite\fP symbolic links in the \fBdists/\fP-directory pointing
+to the corresponding \fIcodename\fP.
+
+It will not create links, when multiple of the given codenames
+would be linked from the same suite name, or if the link
+already exists (though when \fB\-\-delete\fP is given it
+will delete already existing symlinks)
+.TP
+.B list \fIcodename\fP \fR[\fP \fIpackagename\fP \fR]\fP
+List all packages (source and binary, except when
+.B \-T
+or
+.B \-A
+is given) with the given name in all components (except when
+.B \-C
+is given) and architectures (except when
+.B \-A
+is given) of the specified distribution.
+If no package name is given, list everything.
+The format of the output can be changed with \fB\-\-list\-format\fP.
+To only get parts of the result, use \fB\-\-list\-max\fP and
+\fB\-\-list\-skip\fP.
+.TP
+.B listmatched \fIcodename\fP \fIglob\fP
+as list, but does not list a single package, but all packages
+matching the given shell-like \fIglob\fP.
+(i.e. \fB*\fP, \fB?\fP and \fB[\fP\fIchars\fP\fB]\fP are allowed).
+
+Examples:
+
+.B reprepro \-b . listmatched test2 'linux\-*'
+lists all packages starting with \fBlinux\-\fP.
+
+.TP
+.B listfilter \fIcodename\fP \fIcondition\fP
+as list, but does not list a single package, but all packages
+matching the given condition.
+
+The format of the formulas is those of the dependency lines in
+Debian packages' control files with some extras.
+That means a formula consists of names of fields with a possible
+condition for its content in parentheses.
+These atoms can be combined with
+an exclamation mark '!' (meaning not),
+a pipe symbol '|' (meaning or) and
+a comma ',' (meaning and).
+Additionally parentheses can be used to change binding
+(otherwise '!' binds more than '|' than ',').
+
+The values given in the search expression are directly alphabetically
+compared to the headers in the respective index file.
+That means that each part \fIFieldname\fP\fB (\fP\fIcmp\fP\fB \fP\fIvalue\fP\fB)\fP
+of the formula will be true for exactly those package that have
+in the \fBPackage\fP or \fBSources\fP file a line starting with \fIfieldname\fP
+and a value is alphabetically \fIcmp\fP to \fIvalue\fP.
+
+Additionally since reprepro 3.11.0, '\fB%\fP' can be used as comparison operator,
+denoting matching a name with shell like wildcard
+(with '\fB*\fP', '\fB?\fP' and '\fB[\fP..\fB]\fP').
+
+The special field names starting with '\fB$\fP' have special meaning
+(available since 3.11.1):
+
+.B $Version
+
+The version of the package, comparison is not alphabetically, but as
+Debian version strings.
+
+.B $Source
+
+The source name of the package.
+
+.B $SourceVersion
+
+The source version of the package.
+
+.B $Architecture
+
+The architecture the package is in (listfilter) or to be put into.
+
+.B $Component
+
+The component the package is in (listfilter) or to be put into.
+
+.B $Packagetype
+
+The packagetype of the package.
+
+Examples:
+
+.B reprepro \-b . listfilter test2 'Section (== admin)'
+will list all packages in distribution test2 with a Section field and the value
+of that field being \fBadmin\fP.
+
+.B reprepro \-b . \-T deb listfilter test2 'Source (== \fIblub\fP) | ( !Source , Package (== \fIblub\fP) )'
+will find all .deb Packages with either a Source field blub or
+no Source field and a Package field blub.
+(That means all package generated by a source package \fIblub\fP,
+except those also specifying a version number with its Source).
+
+.B reprepro \-b . \-T deb listfilter test2 '$Source (==\fIblub\fP)'
+is the better way to do this (but only available since 3.11.1).
+
+.B reprepro \-b . listfilter test2 '$PackageType (==deb), $Source (==\fIblub\fP)'
+is another (less efficient) way.
+
+.B reprepro \-b . listfilter test2 'Package (% linux\-*\-2.6*)'
+lists all packages with names starting with \fBlinux\-\fP and later
+having an \fB\-2.6\fP.
+.TP
+.B ls \fIpackage-name\fP
+List the versions of the specified package in all distributions.
+.TP
+.B lsbycomponent \fIpackage-name\fP
+Like ls, but group by component (and print component names).
+.TP
+.B remove \fIcodename\fP \fIpackage-names\fP\fR[\fP=\fIversion\fP\fR]\fP \fI...\fP
+Delete packages in the specified distribution,
+that have package name listed as argument.
+Package versions must be specified by appending '\fB=\fP' and the
+version to the name (without spaces). When no version is specified, the latest
+package version is removed.
+
+Note that like any other operation removing or replacing a package,
+the old package's files are unreferenced and thus may be automatically
+deleted if this was their last reference and no \fB\-\-keepunreferencedfiles\fP
+specified.
+.TP
+.B removematched \fIcodename\fP \fIglob\fP
+Delete all packages \fBlistmatched\fP with the same arguments would list.
+.TP
+.B removefilter \fIcodename\fP \fIcondition\fP
+Delete all packages \fBlistfilter\fP with the same arguments would list.
+.TP
+.B removesrc \fIcodename\fP \fIsource-name\fP \fR[\fP\fIversion\fP\fR]\fP
+Remove all packages in distribution \fIcodename\fP belonging to source
+package \fIsource-name\fP.
+(Limited to those with source version \fIversion\fP if specified).
+
+If package tracking is activated, it will use that information to find the
+packages, otherwise it traverses all package indices for the distribution.
+.TP
+.B removesrcs \fIcodename\fP \fIsource-name\fP\fR[\fP=\fIversion\fP\fR]\fP \fI...\fP
+Like \fBremovesrc\fP, but can be given multiple source names
+and source versions must be specified by appending '\fB=\fP' and the version
+to the name (without spaces).
+.TP
+.BR update " [ " \fIcodenames\fP " ]"
+Sync the specified distributions (all if none given) as
+specified in the config with their upstreams. See the
+description of
+.B conf/updates
+below.
+.TP
+.BR checkupdate " [ " \fIcodenames\fP " ]"
+Same like
+.BR update ,
+but will show what it will change instead of actually changing it.
+.TP
+.BR dumpupdate " [ " \fIcodenames\fP " ]"
+Same like
+.BR checkupdate ,
+but less suitable for humans and more suitable for computers.
+.TP
+.BR predelete " [ " \fIcodenames\fP " ]"
+This will determine which packages a \fBupdate\fP would delete or
+replace and remove those packages.
+This can be useful for reducing space needed while upgrading, but
+there will be some time where packages are vanished from the
+lists so clients will mark them as obsolete.
+Plus if you cannot
+download a updated package in the (hopefully) following update
+run, you will end up with no package at all instead of an old one.
+This will also blow up \fB.diff\fP files if you are using the pdiff
+example or something similar.
+So be careful when using this option or better get some more space so
+that update works.
+.TP
+.B cleanlists
+Delete all files in \fIlistdir\fP (default \fIbasedir\fP\fB/lists\fP) that do not
+belong to any update rule for any distribution.
+I.e. all files are deleted in that directory that no \fBupdate\fP
+command in the current configuration can use.
+(The files are usually left there, so if they are needed again they
+do not need to be downloaded again. Though in many easy cases not
+even those files will be needed.)
+.TP
+.BR pull " [ " \fIcodenames\fP " ]"
+pull in newer packages into the specified distributions (all if none given)
+from other distributions in the same repository.
+See the description of
+.B conf/pulls
+below.
+.TP
+.BR checkpull " [ " \fIcodenames\fP " ]"
+Same like
+.BR pull ,
+but will show what it will change instead of actually changing it.
+.TP
+.BR dumppull " [ " \fIcodenames\fP " ]"
+Same like
+.BR checkpull ,
+but less suitable for humans and more suitable for computers.
+.TP
+.B includedeb \fIcodename\fP \fI.deb-filename\fP
+Include the given binary Debian package (.deb) in the specified
+distribution, applying override information and guessing all
+values not given and guessable.
+.TP
+.B includeudeb \fIcodename\fP \fI.udeb-filename\fP
+Same like \fBincludedeb\fP, but for .udeb files.
+.TP
+.B includedsc \fIcodename\fP \fI.dsc-filename\fP
+Include the given Debian source package (.dsc, including other files
+like .orig.tar.gz, .tar.gz and/or .diff.gz) in the specified
+distribution, applying override information and guessing all values
+not given and guessable.
+
+Note that .dsc files do not contain section or priority, but the
+Sources.gz file needs them.
+reprepro tries to parse .diff and .tar files for
+it, but is only able to resolve easy cases.
+If reprepro fails to extract those automatically,
+you have to either specify a DscOverride or give them via
+.B \-S
+and
+.B \-P
+.TP
+.B include  \fIcodename\fP \fI.changes-filename\fP
+Include in the specified distribution all packages found and suitable
+in the \fI.changes\fP file, applying override information guessing all
+values not given and guessable.
+.TP
+.B processincoming \fIrulesetname\fP \fR[\fP\fI.changes-file\fP\fR]\fP
+Scan an incoming directory and process the .changes files found there.
+If a filename is supplied, processing is limited to that file.
+.I rulesetname
+identifies which rule-set in
+.B conf/incoming
+determines which incoming directory to use
+and in what distributions to allow packages into.
+See the section about this file for more information.
+.TP
+.BR check " [ " \fIcodenames\fP " ]"
+Check if all packages in the specified distributions have all files
+needed properly registered.
+.TP
+.BR checkpool " [ " fast " ]"
+Check if all files believed to be in the pool are actually still there and
+have the known md5sum. When
+.B fast
+is specified md5sum is not checked.
+.TP
+.BR collectnewchecksums
+Calculate all supported checksums for all files in the pool.
+(Versions prior to 3.3 did only store md5sums, 3.3 added sha1, 3.5 added sha256).
+.TP
+.BR translatelegacychecksums
+Remove the legacy \fBfiles.db\fP file after making sure all information
+is also found in the new \fBchecksums.db\fP file.
+(Alternatively you can call \fBcollecnewchecksums\fP and remove the file
+on your own.)
+.TP
+.B rereference
+Forget which files are needed and recollect this information.
+.TP
+.B dumpreferences
+Print out which files are marked to be needed by whom.
+.TP
+.B dumpunreferenced
+Print a list of all filed believed to be in the pool, that are
+not known to be needed.
+.TP
+.B deleteunreferenced
+Remove all known files (and forget them) in the pool not marked to be
+needed by anything.
+.TP
+.BR deleteifunreferenced " [ " \fIfilekeys\fP " ]"
+Remove the given files (and forget them) in the pool if they
+are not marked to be used by anything.
+If no command line arguments are given,
+stdin is read and every line treated as one filekey.
+This is mostly useful together with \fB\-\-keepunreferenced\fP
+in \fBconf/options\fP or in situations where one does not want
+to run \fBdeleteunreferenced\fP, which removes all files eligible
+to be deleted with this command.
+.TP
+.BR reoverride " [ " \fIcodenames\fP " ]"
+Reapply the override files to the given distributions (Or only parts
+thereof given by \fB\-A\fP,\fB\-C\fP or \fB\-T\fP).
+
+Note: only the control information is changed. Changing a section
+to a value, that would cause another component to be guessed, will
+not cause any warning.
+.TP
+.BR redochecksums " [ " \fIcodenames\fP " ]"
+Re-add the information about file checksums to the package indices.
+
+Usually the package's control information is created at inclusion
+time or imported from some remote source and not changed later.
+This command modifies it to re-add missing checksum types.
+
+Only checksums already known are used.
+To update known checksums about files run \fBcollectnewchecksums\fP first.
+
+.TP
+.BR dumptracks " [ " \fIcodenames\fP " ]"
+Print out all information about tracked source packages in the
+given distributions.
+.TP
+.BR retrack " [ " \fIcodenames\fP " ]"
+Recreate a tracking database for the specified distributions.
+This contains ouf of three steps.
+First all files marked as part of a source package are set to
+unused.
+Then all files actually used are marked as thus.
+Finally tidytracks is called remove everything no longer needed
+with the new information about used files.
+
+(This behaviour, though a bit longsome, keeps even files only
+kept because of tracking mode \fBkeep\fP and files not otherwise
+used but kept due to \fBincludechanges\fP or its relatives.
+Before version 3.0.0 such files were lost by running retrack).
+.TP
+.BR removealltracks " [ " \fIcodenames\fP " ]"
+Removes all source package tracking information for the
+given distributions.
+.TP
+.B removetrack " " \fIcodename\fP " " \fIsourcename\fP " " \fIversion\fP
+Remove the trackingdata of the given version of a given sourcepackage
+from a given distribution. This also removes the references for all
+used files.
+.TP
+.BR tidytracks " [ " \fIcodenames\fP " ]"
+Check all source package tracking information for the given distributions
+for files no longer to keep.
+.TP
+.B copy \fIdestination-codename\fP \fIsource-codename\fP \fIpackage\fP\fR[\fP=\fIversion\fP\fR]\fP \fI...\fP
+Copy the given packages from one distribution to another.
+The packages are copied verbatim, no override files are consulted.
+Only components and architectures present in the source distribution are
+copied. Package versions must be specified by appending '\fB=\fP' and the
+version to the name (without spaces). When no version is specified, the latest
+package version is copied.
+.TP
+.B copysrc \fIdestination-codename\fP \fIsource-codename\fP \fIsource-package\fP \fR[\fP\fIversions\fP\fR]\fP
+look at each package
+(where package means, as usual, every package be it dsc, deb or udeb)
+in the distribution specified by \fIsource-codename\fP
+and identifies the relevant source package for each.
+All packages matching the specified \fIsource-package\fP name
+(and any \fIversion\fP if specified)
+are copied to the \fIdestination-codename\fP distribution.
+The packages are copied verbatim, no override files are consulted.
+Only components and architectures present in the source distribution are
+copied.
+.TP
+.B copymatched \fIdestination-codename\fP \fIsource-codename\fP \fIglob\fP
+Copy packages matching the given glob (see \fBlistmatched\fP).
+
+The packages are copied verbatim, no override files are consulted.
+Only components and architectures present in the source distribution are
+copied.
+.TP
+.B copyfilter \fIdestination-codename\fP \fIsource-codename\fP \fIformula\fP
+Copy packages matching the given formula (see \fBlistfilter\fP).
+(all versions if no version is specified).
+The packages are copied verbatim, no override files are consulted.
+Only components and architectures present in the source distribution are
+copied.
+.TP
+.B move \fIdestination-codename\fP \fIsource-codename\fP \fIpackage\fP\fR[\fP=\fIversion\fP\fR]\fP \fI...\fP
+Move the given packages from one distribution to another.
+The packages are moved verbatim, no override files are consulted.
+Only components and architectures present in the source distribution are
+moved. Package versions must be specified by appending '\fB=\fP' and the
+version to the name (without spaces). When no version is specified, the latest
+package version is moved.
+.TP
+.B movesrc \fIdestination-codename\fP \fIsource-codename\fP \fIsource-package\fP \fR[\fP\fIversions\fP\fR]\fP
+look at each package
+(where package means, as usual, every package be it dsc, deb or udeb)
+in the distribution specified by \fIsource-codename\fP
+and identifies the relevant source package for each.
+All packages matching the specified \fIsource-package\fP name
+(and any \fIversion\fP if specified)
+are moved to the \fIdestination-codename\fP distribution.
+The packages are moved verbatim, no override files are consulted.
+Only components and architectures present in the source distribution are
+moved.
+.TP
+.B movematched \fIdestination-codename\fP \fIsource-codename\fP \fIglob\fP
+Move packages matching the given glob (see \fBlistmatched\fP).
+
+The packages are moved verbatim, no override files are consulted.
+Only components and architectures present in the source distribution are
+moved.
+.TP
+.B movefilter \fIdestination-codename\fP \fIsource-codename\fP \fIformula\fP
+Move packages matching the given formula (see \fBlistfilter\fP).
+(all versions if no version is specified).
+The packages are moved verbatim, no override files are consulted.
+Only components and architectures present in the source distribution are
+moved.
+.TP
+.B restore \fIcodename\fP \fIsnapshot\fP \fIpackages...\fP
+.TP
+.B restoresrc \fIcodename\fP \fIsnapshot\fP \fIsource-epackage\fP \fR[\fP\fIversions\fP\fR]\fP
+.TP
+.B restorefilter \fIdestination-codename\fP \fIsnapshot\fP \fIformula\fP
+.TP
+.B restorematched \fIdestination-codename\fP \fIsnapshot\fP \fIglob\fP
+Like the copy commands, but do not copy from another distribution,
+but from a snapshot generated with \fBgensnapshot\fP.
+Note that this blindly trusts the contents of the files in your \fBdists/\fP
+directory and does no checking.
+.TP
+.B clearvanished
+Remove all package databases that no longer appear in \fBconf/distributions\fP.
+If \fB\-\-delete\fP is specified, it will not stop if there are still
+packages left.
+Even without \fB\-\-delete\fP it will unreference
+files still marked as needed by this target.
+(Use \fB\-\-keepunreferenced\fP to not delete them if that was the last
+reference.)
+
+Do not forget to remove all exported package indices manually.
+.TP
+.B gensnapshot " " \fIcodename\fP " " \fIdirectoryname\fP
+Generate a snapshot of the distribution specified by \fIcodename\fP
+in the directory \fIdists\fB/\fIcodename\fB/snapshots/\fIdirectoryname\fB/\fR
+and reference all needed files in the pool as needed by that.
+No Content files are generated and no export hooks are run.
+
+Note that there is currently no automated way to remove that snapshot
+again (not even clearvanished will unlock the referenced files after the
+distribution itself vanished).
+You will have to remove the directory yourself and tell reprepro
+to \fBunreferencesnapshot \fP\fIcodename\fP\fB \fP\fIdirectoryname\fP before
+\fBdeleteunreferenced\fP will delete the files from the pool locked by this.
+
+To access such a snapshot with apt, add something like the following to
+your sources.list file:
+.br
+\fBdeb method://as/without/snapshot \fIcodename\fB/snapshots/\fIname\fB main\fR
+.TP
+.B unreferencesnapshot " " \fIcodename\fP " " \fIdirectoryname\fP
+Remove all references generated by an \fBgenshapshot\fP with the
+same arguments.
+This allows the next \fBdeleteunferenced\fP call to delete those files.
+(The indices in \fBdists/\fP for the snapshot are not removed.)
+.TP
+.BR rerunnotifiers " [ " \fIcodenames\fP " ]"
+Run all external scripts specified in the \fBLog:\fP options of the
+specified distributions.
+.TP
+.B build\-needing \fIcodename\fP \fIarchitecture\fP \fR[\fP \fIglob\fP \fR]\fP
+List source packages (matching \fIglob\fP) that likely need a build on the
+given architecture.
+
+List all source package in the given distribution without a binary package
+of the given architecture built from that version of the source,
+without a \fB.changes\fP or \fB.log\fP file for the given architecture,
+with an Architecture field including \fBany\fP, \fIos\fP\fB-any\fP (with
+\fIos\fP being the part before the hyphen in the architecture or \fBlinux\fP
+if there is no hyphen) or the architecture and
+at least one package in the Binary field not yet available.
+
+If instead of \fIarchitecture\fP the term \fBany\fP is used,
+all architectures are iterated and the architecture is printed as
+fourth field in every line.
+
+If the \fIarchitecture\fP is \fBall\fP, then only source packages
+with an Architecture field including \fBall\fP are considered
+(i.e. as above with real architectures but \fBany\fP does not suffice).
+Note that dpkg\-dev << 1.16.1 does not both set \fBany\fP and \fBall\fP
+so source packages building both architecture dependent and independent
+packages will never show up unless built with a new enough dpkg\-source).
+
+.TP
+.B translatefilelists
+Translate the file list cache within
+.IB db /contents.cache.db
+into the new format used since reprepro 3.0.0.
+
+Make sure you have at least half of the space of the current
+.IB db /contents.cache.db
+file size available in that partition.
+.TP
+.B flood \fIdistribution\fP \fR[\fP\fIarchitecture\fP\fR]\fP
+For each architecture of \fIdistribution\fP (or for the one specified)
+add architecture \fBall\fP packages from other architectures
+(but the same component or packagetype) under the following conditions:
+
+ Packages are only upgraded, never downgraded.
+ If there is a package not being architecture \fPall\fP,
+then architecture \fBall\fP packages of the same source from the same
+source version are preferred over those that have no such binary sibling.
+ Otherwise the package with the highest version wins.
+
+You can restrict with architectures are looked for architecture \fPall\fP
+packages using \fB\-A\fP and which components/packagetypes are flooded by
+\fB\-C\fP/\fB\-T\fP as usual.
+
+There are mostly two use cases for this command:
+If you added an new architecture to an distribution and want to copy all
+architecture \fBall\fP packages to it.
+Or if you included some architecture all packages only to some architectures
+using \fB\-A\fP to avoid breaking the other architectures for which the binary
+packages were still missing and now want to copy it to those architectures were
+they are unlikely to break something (because a newbinary is already available).
+.TP
+.B unusedsources \fR[\fP\fIdistributions\fP\fR]\fP
+List all source packages for which no binary package build from them is found.
+.TP
+.B sourcemissing \fR[\fP\fIdistributions\fP\fR]\fP
+List all binary packages for which no source package is found
+(the source package must be in the same distribution,
+but source packages only kept by package tracking is enough).
+.TP
+.B reportcruft \fR[\fP\fIdistributions\fP\fR]\fP
+List all source package versions that either have a source package
+and no longer a binary package or binary packages left without
+source package in the index. (Unless sourcemissing also list packages
+where the source package in only in the pool due to enabled tracking
+but no longer in the index).
+.TP
+.BR sizes " [ " \fIcodenames\fP " ]"
+List the size of all packages in the distributions specified or
+in all distributions.
+
+Each row contains 4 numbers, each being a number of bytes in a set
+of packages, which are:
+The packages in this distribution
+(including anything only kept because of tracking),
+the packages only in this distribution
+(anything in this distribution and a snapshot of this distribution
+counts as only in this distribution),
+the packages in this distribution and its snapshots,
+the packages only in this distribution or its snapshots.
+
+If more than one distribution is selected, also list a sum of those
+(in which 'Only' means only in selected ones, and not only only in
+one of the selected ones).
+
+.TP
+.BR repairdescriptions " [ " \fIcodenames\fP " ]"
+Look for binary packages only having a short description
+and try to get the long description from the .deb file
+(and also remove a possible Description-md5 in this case).
+.SS internal commands
+These are hopefully never needed, but allow manual intervention.
+.B WARNING:
+Is is quite easy to get into an inconsistent and/or unfixable state.
+.TP
+.BR _detect " [ " \fIfilekeys\fP " ]"
+Look for the files, which \fIfilekey\fP
+is given as argument or as a line of the input
+(when run without arguments), and calculate
+their md5sum and add them to the list of known files.
+(Warning: this is a low level operation, no input validation
+or normalization is done.)
+.TP
+.BR _forget " [ " \fIfilekeys\fP " ]"
+Like
+.B _detect
+but remove the given \fIfilekey\fP from the list of known
+files.
+(Warning: this is a low level operation, no input validation
+or normalization is done.)
+.TP
+.B _listmd5sums
+Print a list of all known files and their md5sums.
+.TP
+.B _listchecksums
+Print a list of all known files and their recorded checksums.
+.TP
+.B _addmd5sums
+alias for the newer
+.TP
+.B _addchecksums
+Add information of known files (without any check done)
+in the strict format of _listchecksums output (i.e. don't dare to
+use a single space anywhere more than needed).
+.TP
+.BI _dumpcontents " identifier"
+Printout all the stored information of the specified
+part of the repository. (Or in other words, the content
+the corresponding Packages or Sources file would get)
+
+This command is deprecated and will be removed in a future version.
+.TP
+.BI "_addreference " filekey " " identifier
+Manually mark \fIfilekey\fP to be needed by \fIidentifier\fP
+.TP
+.BI "_addreferences " identifier " \fR[\fR " filekeys " \fR]\fR"
+Manually mark one or more \fIfilekeys\fP to be needed by \fIidentifier\fP.
+If no command line arguments are given,
+stdin is read and every line treated as one filekey.
+.TP
+.BI "_removereference " identifier " " filekey
+Manually remove the given mark that the file is needed by this identifier.
+.TP
+.BI "_removereferences " identifier
+Remove all references what is needed by
+.I identifier.
+.TP
+.BI __extractcontrol " .deb-filename"
+Look what reprepro believes to be the content of the
+.B control
+file of the specified .deb-file.
+.TP
+.BI __extractfilelist " .deb-filename"
+Look what reprepro believes to be the list of files
+of the specified .deb-file.
+.TP
+.BI _fakeemptyfilelist " filekey"
+Insert an empty filelist for \fIfilekey\fP. This is a evil
+hack around broken .deb files that cannot be read by reprepro.
+.TP
+.B _addpackage \fIcodenam\fP \fIfilename\fP \fIpackages...\fP
+Add packages from the specified filename to part specified
+by \fB\-C\fP \fB\-A\fP and \fB\-T\fP of the specified distribution.
+Very strange things can happen if you use it improperly.
+.TP
+.B __dumpuncompressors
+List what compressions format can be uncompressed and how.
+.TP
+.BI __uncompress " format compressed-file uncompressed-file"
+Use builtin or external uncompression to uncompress the specified
+file of the specified format into the specified target.
+.TP
+.BR _listcodenames
+Print - on per line - the codenames of all configured distributions.
+.TP
+.B _listconfidentifiers  \fIidentifier\fP \fR[\fP \fIdistributions...\fP \fR]\fP
+Print - one per line - all identifiers of subdatabases as derived from the
+configuration.
+If a list of distributions is given, only identifiers of those are printed.
+
+.TP
+.B _listdbidentifiers  \fIidentifier\fP \fR[\fP \fIdistributions...\fP \fR]\fP
+Print - one per line - all identifiers of subdatabases in the current
+database.
+This will be a subset of the ones printed by \fB_listconfidentifiers\fP or
+most commands but \fBclearvanished\fP will refuse to run, and depending
+on the database compatibility version, will include all those if reprepro
+was run since the config was last changed.
+
+.SH "CONFIG FILES"
+.B reprepo
+uses three config files, which are searched in
+the directory specified with
+.B \-\-confdir
+or in the
+.B conf/
+subdirectory of the \fIbasedir\fP.
+
+If a file
+.B options
+exists, it is parsed line by line.
+Each line can be the long
+name of a command line option (without the \-\-)
+plus an argument, where possible.
+Those are handled as if they were command line options given before
+(and thus lower priority than) any other command line option.
+(and also lower priority than any environment variable).
+
+To allow command line options to override options file options,
+most boolean options also have a corresponding form starting with \fB\-\-no\fP.
+
+(The only exception is when the path to look for config files
+changes, the options file will only opened once and of course
+before any options within the options file are parsed.)
+
+The file
+.B distributions
+is always needed and describes what distributions
+to manage, while
+.B updates
+is only needed when syncing with external repositories and
+.B pulls
+is only needed when syncing with repositories in the same reprepro database.
+
+The last three are in the format control files in Debian are in,
+i.e. paragraphs separated by empty lines consisting of
+fields. Each field consists of a fieldname, followed
+by a colon, possible whitespace and the data. A field
+ends with a newline not followed by a space or tab.
+
+Lines starting with # as first character are ignored,
+while in other lines the # character and
+everything after it till the newline character are ignored.
+
+A paragraph can also consist of only a single field
+.RB \(dq !include: \(dq
+which causes the named file (relative to confdir unless starting
+with
+.BR ~/ ", " +b/ ", " +c/ " or " / " )"
+to be read as if it was found at this place.
+
+Each of the three files or a file included as described above
+can also be a directory, in which case all files it contains
+with a filename ending in
+.B .conf
+and not starting with
+.B .
+are read.
+.SS conf/distributions
+.TP
+.B Codename
+This required field is the unique identifier of a distribution
+and used as directory name within
+.B dists/
+It is also copied into the Release files.
+
+Note that this name is not supposed to change.
+You most likely \fBnever ever\fP want a name like \fBtesting\fP
+or \fBstable\fP here (those are suite names and supposed to point
+to another distribution later).
+.TP
+.B Suite
+This optional field is simply copied into the
+Release files. In Debian it contains names like
+stable, testing or unstable. To create symlinks
+from the Suite to the Codename, use the
+\fBcreatesymlinks\fP command of reprepro.
+.TP
+.B FakeComponentPrefix
+If this field is present,
+its argument is added - separated by a slash -  before every
+Component written to the main Release file
+(unless the component already starts with it),
+and removed from the end of the Codename and Suite fields in that file.
+Also if a component starts with it, its directory in the dists dir
+is shortened by this.
+.br
+So \fB
+
+ Codename: bla/updates
+ Suite: foo/updates
+ FakeComponentPrefix: updates
+ Components: main bad\fP
+
+will create a Release file with \fB
+
+ Codename: bla
+ Suite: foo
+ Components: updates/main updates/bad\fP
+
+in it, but otherwise nothing is changed, while\fB
+
+ Codename: bla/updates
+ Suite: foo/updates
+ FakeComponentPrefix: updates
+ Components: updates/main updates/bad\fP
+
+will also create a Release file with \fB
+
+ Codename: bla
+ Suite: foo
+ Components: updates/main updates/bad\fP
+
+but the packages will actually be in the components
+\fBupdates/main\fP and \fBupdates/bad\fP,
+most likely causing the same file using duplicate storage space.
+
+This makes the distribution look more like Debian's security archive,
+thus work around problems with apt's workarounds for that.
+.TP
+.B AlsoAcceptFor
+A list of distribution names.
+When a \fB.changes\fP file is told to be included
+into this distribution with the \fBinclude\fP command
+and the distribution header of that file is neither
+the codename, nor the suite name, nor any name from the
+list, a \fBwrongdistribution\fP error is generated.
+The \fBprocess_incoming\fP command will also use this field,
+see the description of \fBAllow\fP and \fBDefault\fP
+from the \fBconf/incoming\fP file for more information.
+.TP
+.B Version
+This optional field is simply copied into the
+Release files.
+.TP
+.B Origin
+This optional field is simply copied into the
+Release files.
+.TP
+.B Label
+This optional field is simply copied into the
+Release files.
+.TP
+.B NotAutomatic
+This optional field is simply copied into the
+Release files.
+(The value is handled as an arbitrary string,
+though anything but \fByes\fP does not make much
+sense right now.)
+.TP
+.B ButAutomaticUpgrades
+This optional field is simply copied into the
+Release files.
+(The value is handled as an arbitrary string,
+though anything but \fByes\fP does not make much
+sense right now.)
+.TP
+.B Description
+This optional field is simply copied into the
+Release files.
+.TP
+.B Architectures
+This required field lists the binary architectures within
+this distribution and if it contains
+.B source
+(i.e. if there is an item
+.B source
+in this line this Distribution has source. All other items
+specify things to be put after "binary\-" to form directory names
+and be checked against "Architecture:" fields.)
+
+This will also be copied into the Release files. (With exception
+of the
+.B source
+item, which will not occur in the topmost Release file whether
+it is present here or not)
+.TP
+.B Components
+This required field lists the component of a
+distribution. See
+.B GUESSING
+for rules which component packages are included into
+by default. This will also be copied into the Release files.
+.TP
+.B DDebComponents
+List of components containing .ddebs.
+.TP
+.B UDebComponents
+Components with a debian\-installer subhierarchy containing .udebs.
+(E.g. simply "main")
+.TP
+.B Update
+When this field is present, it describes which update rules are used
+for this distribution. There also can be a magic rule minus ("\-"),
+see below.
+.TP
+.B Pull
+When this field is present, it describes which pull rules are used
+for this distribution.
+Pull rules are like Update rules,
+but get their stuff from other distributions and not from external sources.
+See the description for \fBconf/pulls\fP.
+.TP
+.B SignWith
+When this field is present, a Release.gpg file will be generated.
+If the value is "yes" or "default", the default key of gpg is used.
+If the field starts with an exclamation mark ("!"), the given script
+is executed to do the signing.
+Otherwise the value will be given to libgpgme to determine to key to
+use.
+
+If there are problems with signing, you can try
+.br
+.B gpg \-\-list\-secret\-keys \fIvalue\fP
+.br
+to see how gpg could interpret the value.
+If that command does not list any keys or multiple ones,
+try to find some other value (like the keyid),
+that gpg can more easily associate with a unique key.
+
+If this key has a passphrase, you need to use gpg\-agent
+or the insecure option \fB\-\-ask\-passphrase\fP.
+
+A '\fB!\fP' hook script is looked for in the confdir,
+unless it starts with
+.BR ~/ ", " ./ ", " +b/ ", " +o/ ", " +c/ " or " / " ."
+Is gets three command line arguments: The filename to sign,
+an empty argument or the filename to create with an inline
+signature (i.e. InRelease) and
+an empty argument or the filename to create an detached signature
+(i.e. Release.gpg).
+The script may generate no Release.gpg file if it choses to
+(then the repository will look like unsigned for older clients),
+but generating empty files is not allowed.
+Reprepro waits for the script to finish and will abort the exporting
+of the distribution this signing is part of unless the scripts
+returns normally with exit code 0.
+Using a space after ! is recommended to avoid incompatibilities
+with possible future extensions.
+.TP
+.B DebOverride
+When this field is present, it describes the override file used
+when including .deb files.
+.TP
+.B UDebOverride
+When this field is present, it describes the override file used
+when including .udeb files.
+.TP
+.B DscOverride
+When this field is present, it describes the override file used
+when including .dsc files.
+.TP
+.B DebIndices\fR, \fBUDebIndices\fR, \fBDscIndices
+Choose what kind of Index files to export. The first
+part describes what the Index file shall be called.
+The second argument determines the name of a Release
+file to generate or not to generate if missing.
+Then at least one of "\fB.\fP", "\fB.gz\fP", "\fB.xz\fP" or "\fB.bz2\fP"
+specifying whether to generate uncompressed output, gzipped
+output, bzip2ed output or any combination.
+(bzip2 is only available when compiled with bzip2 support,
+so it might not be available when you compiled it on your
+own, same for xz and liblzma).
+If an argument not starting with dot follows,
+it will be executed after all index files are generated.
+(See the examples for what argument this gets).
+The default is:
+.br
+DebIndices: Packages Release . .gz
+.br
+UDebIndices: Packages . .gz
+.br
+DscIndices: Sources Release .gz
+.TP
+.B ExportOptions
+Options to modify how and if exporting is done:
+.br
+.B noexport
+Never export this distribution.
+That means there will be no directory below \fBdists/\fP generated and the distribution is only useful to copy packages to other distributions.
+.br
+.B keepunknown
+Ignore unknown files and directories in the exported directory.
+This is currently the only available option and the default, but might change in the future, so it can already be requested explicitly.
+.TP
+.B Contents
+Enable the creation of Contents files listing all the files
+within the binary packages of a distribution.
+(Which is quite slow, you have been warned).
+
+In earlier versions, the first argument was a rate at which
+to extract file lists.
+As this did not work and was no longer easily possible after
+some factorisation, this is no longer supported.
+
+The arguments of this field is a space separated list of options.
+If there is a \fBudebs\fP keyword, \fB.udeb\fPs are also listed
+(in a file called \fBuContents\-\fP\fIarchitecture\fP.)
+If there is a \fBnodebs\fP keyword, \fB.deb\fPs are not listed.
+(Only useful together with \fBudebs\fP)
+If there is at least one of the keywords
+\fB.\fP, \fB.gz\fP, \fB\.xz\fP and/or \fB.bz2\fP,
+the Contents files are written uncompressed, gzipped and/or bzip2ed instead
+of only gzipped.
+
+If there is a \fBpercomponent\fP then one Contents\-\fIarch\fP file
+per component is created.
+If there is a \fBallcomponents\fP then one global Contents\-\fIarch\fP
+file is generated.
+If both are given, both are created.
+If none of both is specified then \fBpercomponent\fP is taken
+as default (earlier versions had other defaults).
+
+The switches \fBcompatsymlink\fP or \fBnocompatsymlink\fP
+(only possible if \fBallcomponents\fP was not specified explicitly)
+control whether a compatibility symlink is created so old versions
+of apt\-file looking for the component independent filenames at
+least see the contents of the first component.
+
+Unless \fBallcomponents\fP is given, \fBcompatsymlinks\fP
+currently is the default, but that will change
+in some future (current estimate: after wheezy was released)
+
+.TP
+.B ContentsArchitectures
+Limit generation of Contents files to the architectures given.
+If this field is not there, all architectures are processed.
+An empty field means no architectures are processed, thus not
+very useful.
+.TP
+.B ContentsComponents
+Limit what components are processed for the \fBContents\-\fP\fIarch\fP
+files to the components given.
+If this field is not there, all components are processed.
+An empty field is equivalent to specify \fBnodebs\fP in the
+\fBContents\fP field, while a non-empty field overrides a
+\fBnodebs\fP there.
+.TP
+.B ContentsUComponents
+Limit what components are processed for the uContents files to
+the components given.
+If this field is not there and there is the \fBudebs\fP keyword
+in the Contents field, all .udebs of all components are put
+in the \fBuContents.\fP\fIarch\fP files.
+If this field is not there and there is no \fBudebs\fP keyword
+in the Contents field, no \fBuContents\-\fP\fIarch\fP files are
+generated at all.
+A non-empty fields implies generation of \fBuContents\-\fP\fIarch\fP
+files (just like the \fBudebs\fP keyword in the Contents field),
+while an empty one causes no \fBuContents\-\fP\fIarch\fP files to
+be generated.
+.TP
+.B Uploaders
+Specifies a file (relative to confdir if not starting with
+.BR ~/ ", " +b/ ", " +c/ " or " / " )"
+to specify who is allowed to upload packages. Without this there are no
+limits, and this file can be ignored via \fB\-\-ignore=uploaders\fP.
+See the section \fBUPLOADERS FILES\fP below.
+.TP
+.B Tracking
+Enable the (experimental) tracking of source packages.
+The argument list needs to contain exactly one of the following:
+.br
+.B keep
+Keeps all files of a given source package, until that
+is deleted explicitly via \fBremovetrack\fP. This is
+currently the only possibility to keep older packages
+around when all indices contain newer files.
+.br
+.B all
+Keep all files belonging to a given source package until
+the last file of it is no longer used within that
+distribution.
+.br
+.B minimal
+Remove files no longer included in the tracked distribution.
+(Remove changes, logs and includebyhand files once no file is
+in any part of the distribution).
+.br
+And any number of the following (or none):
+.br
+.B includechanges
+Add the .changes file to the tracked files of a source package.
+Thus it is also put into the pool.
+.br
+.B includebyhand
+Add \fBbyhand\fP and \fBraw\-\fP\fI*\fP files to the tracked
+files and thus in the pool.
+.br
+.B includebuildinfos
+Add buildinfo files to the tracked files and thus in the pool.
+.br
+.B includelogs
+Add log files to the tracked files and thus in the pool.
+(Not that putting log files in changes files is a reprepro
+extension not found in normal changes files)
+.br
+.B embargoalls
+Not yet implemented.
+.br
+.B keepsources
+Even when using minimal mode, do not remove source files
+until no file is needed any more.
+.br
+.B needsources
+Not yet implemented.
+.TP
+.B Limit
+Limit the number of versions of a package per distribution, architecture,
+component, and type. The limit must be a number. If the number is positive,
+all old package version that exceed these limit will be removed or archived
+(see
+.B Archive
+option), when a new package version is added. If the number is zero or negative,
+all package version will be kept. By default only one package version will be
+kept.
+.TP
+.B Archive
+Specify a codename which must be declared before (to avoid loops). When packages
+exceed the version count limit (specified in \fBLimit\fR), these packages will
+be moved to the specified distribution instead of being removed.
+.TP
+.B Log
+Specify a file to log additions and removals of this distribution
+into and/or external scripts to call when something is added or
+removed.
+The rest of the \fBLog:\fP line is the filename,
+every following line (as usual, have to begin with a single space)
+the name of a script to call.
+The name of the script may be preceded with options of the
+form \fB\-\-type=\fP(\fBdsc\fP|\fBdeb\fP|\fBudeb\fP),
+\fB\-\-architecture=\fP\fIname\fP or
+\fB\-\-component=\fP\fIname\fP to only call the script for some
+parts of the distribution.
+An script with argument \fB\-\-changes\fP is called when a \fB.changes\fP
+file was accepted by \fBinclude\fP or \fBprocessincoming\fP (and with other
+arguments).
+Both type of scripts can have a \fB\-\-via=\fP\fIcommand\fP specified,
+in which case it is only called when caused by reprepro command \fIcommand\fP.
+
+For information how it is called and some examples take a look
+at manual.html in reprepro's source or
+.B /usr/share/doc/reprepro/
+
+If the filename for the log files does not start with a slash,
+it is relative to the directory specified with \fB\-\-logdir\fP,
+the scripts are relative to \fB\-\-confdir\fP unless starting with
+.BR ~/ ", " +b/ ", " +c/ " or " / .
+.TP
+.B ValidFor
+If this field exists, an Valid\-Until field is put into generated
+.B Release
+files for this distribution with an date as much in the future as the
+argument specifies.
+
+The argument has to be an number followed by one of the units
+.BR d ", " m " or " y ,
+where \fBd\fP means days, \fBm\fP means 31 days and \fBy\fP means
+365 days.
+So
+.B ValidFor: 1m 11 d
+causes the generation of a
+.B Valid\-Until:
+header in Release files that points 42 days into the future.
+.TP
+.B ReadOnly
+Disallow all modifications of this distribution or its directory
+in \fBdists/\fP\fIcodename\fP (with the exception of snapshot subdirectories).
+.TP
+.B ByHandHooks
+This species hooks to call for handling byhand/raw files by processincoming
+(and in future versions perhaps by include).
+
+Each line consists out of 4 arguments:
+A glob pattern for the section
+(classically \fBbyhand\fP, though Ubuntu uses \fBraw\-\fP*),
+a glob pattern for the priority (not usually used),
+and a glob pattern for the filename.
+
+The 4th argument is the script to be called when all of the above match.
+It gets 5 arguments: the codename of the distribution,
+the section (usually \fBbyhand\fP),
+the priority (usually only \fB\-\fP),
+the filename in the changes file and
+the full filename (with processincoming in the secure TempDir).
+.TP
+.B Signed\-By
+This optional field is simply copied into the Release files.
+It is used to tell apt which keys to trust for this Release
+in the future.
+(see SignWith for how to tell reprepro whether and how to sign).
+.SS conf/updates
+.TP
+.B Name
+The name of this update\-upstream as it can be used in the
+.B Update
+field in conf/distributions.
+.TP
+.B Method
+An URI as one could also give it apt, e.g.
+.I http://ftp.debian.de/debian
+which is simply given to the corresponding
+.B apt\-get
+method. (So either
+.B apt\-get has to be installed, or you have to point with
+.B \-\-methoddir
+to a place where such methods are found.
+.TP
+.B Fallback
+(Still experimental:) A fallback URI, where all files are
+tried that failed the first one. They are given to the
+same method as the previous URI (e.g. both http://), and
+the fallback-server must have everything at the same place.
+No recalculation is done, but single files are just retried from
+this location.
+.TP
+.B Config
+This can contain any number of lines, each in the format
+.B apt\-get \-\-option
+would expect. (Multiple lines \(hy as always \(hy marked with
+leading spaces).
+.P
+For example: Config: Acquire::Http::Proxy=http://proxy.yours.org:8080
+.TP
+.B From
+The name of another update rule this rules derives from.
+The rule containing the \fBFrom\fP may not contain
+.BR Method ", " Fallback " or " Config "."
+All other fields are used from the rule referenced in \fBFrom\fP, unless
+found in this containing the \fBFrom\fP.
+The rule referenced in \fBFrom\fP may itself contain a \fBFrom\fP.
+Reprepro will only assume two remote index files are the same,
+if both get their \fBMethod\fP information from the same rule.
+.TP
+.B Suite
+The suite to update from. If this is not present, the codename
+of the distribution using this one is used. Also "*/whatever"
+is replaced by "<codename>/whatever"
+.TP
+.B Components
+The components to update. Each item can be either the name
+of a component or a pair of a upstream component and a local
+component separated with ">". (e.g. "main>all contrib>all non\-free>notall")
+
+If this field is not there, all components from the distribution
+to update are tried.
+
+An empty field means no source or .deb packages are updated by this rule,
+but only .udeb packages, if there are any.
+
+A rule might list components not available in all distributions
+using this rule. In this case unknown components are silently
+ignored.
+(Unless you start reprepro with the \fB\-\-fast\fP option,
+it will warn about components unusable in all distributions using
+that rule. As exceptions, unusable components called \fBnone\fP
+are never warned about, for compatibility with versions prior to
+3.0.0 where and empty field had a different meaning.)
+.TP
+.B Architectures
+The architectures to update. If omitted all from the distribution
+to update from. (As with components, you can use ">" to download
+from one architecture and add into another one. (This only determine
+in which Package list they land, it neither overwrites the Architecture
+line in its description, nor the one in the filename determined from this
+one. In other words, it is no really useful without additional filtering))
+.TP
+.B UDebComponents
+Like
+.B Components
+but for the udebs.
+.TP
+.B VerifyRelease
+Download the
+.B Release.gpg
+file and check if it is a signature of the
+.B Releasefile
+with the key given here. (In the Format as
+"gpg \-\-with\-colons \-\-list\-key" prints it, i.e. the last
+16 hex digits of the fingerprint) Multiple keys can be specified
+by separating them with a "\fB|\fP" sign. Then finding a signature
+from one of the will suffice.
+To allow revoked or expired keys, add a "\fB!\fP" behind a key.
+(but to accept such signatures, the appropriate \fB\-\-ignore\fP
+is also needed).
+To also allow subkeys of a specified key, add a "\fB+\fP" behind a key.
+.TP
+.B IgnoreRelease: yes
+If this is present, no
+.B InRelease
+or
+.B Release
+file will be downloaded and thus the md5sums of the other
+index files will not be checked.
+.TP
+.B GetInRelease: no
+IF this is present, no
+.B InRelease
+file is downloaded but only
+.B Release
+(and
+.B Release.gpg
+)
+are tried.
+.TP
+.B Flat
+If this field is in an update rule, it is supposed to be a
+flat repository, i.e. a repository without a \fBdists\fP
+dir and no subdirectories for the index files.
+(If the corresponding \fBsources.list\fP line has the suite
+end with a slash, then you might need this one.)
+The argument for the \fBFlat:\fP field is the Component to
+put those packages into.
+No \fBComponents\fP or \fBUDebComponents\fP
+fields are allowed in a flat update rule.
+If the \fBArchitecture\fP field has any \fB>\fP items,
+the part left of the "\fB>\fP" is ignored.
+.br
+For example the \fBsources.list\fP line
+ deb http://cran.r\-project.org/bin/linux/debian etch\-cran/
+.br
+would translate to
+.br
+ Name: R
+ Method: http://cran.r\-project.org/bin/linux/debian
+ Suite: etch\-cran
+ Flat: whatevercomponentyoudlikethepackagesin
+.TP
+.B IgnoreHashes
+This directive tells reprepro to not check the listed
+hashes in the downloaded Release file (and only in the Release file).
+Possible values are currently \fBmd5\fP, \fBsha1\fP and \fBsha256\fP.
+
+Note that this does not speed anything
+up in any measurable way. The only reason to specify this if
+the Release file of the distribution you want to mirror from
+uses a faulty algorithm implementation.
+Otherwise you will gain nothing and only lose security.
+.TP
+.B FilterFormula
+This can be a formula to specify which packages to accept from
+this source. The format is misusing the parser intended for
+Dependency lines. To get only architecture all packages use
+"architecture (== all)", to get only at least important
+packages use "priority (==required) | priority (==important)".
+
+See the description of the listfilter command for the semantics
+of formulas.
+.TP
+.B FilterList\fR, \fPFilterSrcList
+These two options each take at least two arguments:
+The first argument is the fallback (default) action.
+All following arguments are treated as file names of lists.
+
+The filenames are considered to be relative to
+.B \-\-confdir\fR,
+if not starting with
+.BR ~/ ", " +b/ ", " +c/ " or " / "."
+
+Each list file consists of lines with a package name
+followed by whitespaced followed by an action.
+
+Each list may only contain a single line for a given package name.
+The action to be taken is the action specified by the first file
+mentioning that package.
+If no list file mentions a package, the fallback action is used instead.
+
+This format is inspired by dpkg \-\-get\-selections before multiarch
+and the names of the actions likely only make sense if you imagine the
+file to be the output of this command of an existing system.
+
+For each package available in the distribution to be updated from/pulled from
+this action is determined and affects the current decision what to do
+to the target distribution.
+(Only after all update/pull rules for a given target distribution have been
+processed something is actually done).
+
+The possible action keywords are:
+.RS
+.TP
+.B install
+mark the available package to be added to the target distribution unless
+the same version or a higher version is already marked as to be added/kept.
+(Note that without a prior delete rule (\fB\-\fP) or \fBsupersede\fP action,
+this will never downgrade a package as the already existing version
+is marked to be kept).
+.TP
+.B upgradeonly
+like \fBinstall\fP but will not add new packages to a distribution.
+.TP
+.B supersede
+unless the current package version is higher than the available package version,
+mark the package to be deleted in the target distribution.
+(Useful to remove packages in add-on distributions once they reached the base distribution).
+.TP
+.BR deinstall " or " purge
+ignore the newly available package.
+.TP
+.B warning
+print a warning message to stderr if a new package/newer version is available.
+Otherwise ignore the new package (like with \fBdeinstall\fP or \fBpurge\fP).
+.TP
+.B hold
+the new package is ignored, but every previous decision to
+downgrade or delete the package in the target distribution is reset.
+.TP
+.B error
+abort the whole upgrade/pull if a new package/newer version is available
+.TP
+.B "= \fIversion\fP"
+If the candidate package has the given version, behave like \fBinstall\fP.
+Otherwise continue as if this list file did not mention this package
+(i.e. look in the remaining list files or use the fallback action).
+Only one such entry per package is currently supported and the version
+is currently compared as string.
+.RE
+.PP
+.RS
+If there is both \fBFilterList\fP and \fBFilterSrcList\fP then
+the first is used for \fB.deb\fP and \fB.udeb\fP and the second for
+\fB.dsc\fP packages.
+.PP
+If there is only \fBFilterList\fP that is applied to everything.
+.PP
+If there is only \fBFilterSrcList\fP that is applied to everything, too,
+but the source package name (and source version) is used to do the lookup.
+.RE
+.TP
+.B OmitExtraSourceOnly
+This field controls whether source packages with Extra-Source-Only
+set are ignore when getting source packages.
+Without this option or if it is true, those source packages
+are ignored, while if set to no or false, those source packages
+are also candidates if no other filter excludes them.
+(The default of true will likely change once reprepro supports
+multiple versions of a package or has other means to keep the
+source packages around).
+.TP
+.B ListHook
+If this is given, it is executed for all downloaded index files
+with the downloaded list as first and a filename that will
+be used instead of this. (e.g. "ListHook: /bin/cp" works
+but does nothing.)
+
+If a file will be read multiple times, it is processed multiple
+times, with the environment variables
+.BR REPREPRO_FILTER_CODENAME ", " REPREPRO_FILTER_PACKAGETYPE ", "
+.BR REPREPRO_FILTER_COMPONENT " and " REPREPRO_FILTER_ARCHITECTURE
+set to the where this file will be added and
+.B REPREPRO_FILTER_PATTERN
+to the name of the update rule causing it.
+
+.TP
+.B ListShellHook
+This is like ListHook, but the whole argument is given to the shell
+as argument, and the input and output file are stdin and stdout.
+
+i.e.:
+.br
+ListShellHook: cat
+.br
+works but does nothing but useless use of a shell and cat, while
+.br
+ListShellHook: grep\-dctrl \-X \-S apt \-o \-X \-S dpkg || [ $? \-eq 1 ]
+.br
+will limit the update rule to packages from the specified source packages.
+.TP
+.B DownloadListsAs
+The arguments of this field specify which index files reprepro
+will download.
+
+Allowed values are
+.BR . ", " .gz ", " .bz2 ", " .lzma ", " .xz ", " .diff ", "
+.BR force.gz ", " force.bz2 ", " force.lzma ", "
+.BR force.xz ", and " force.diff "."
+
+Reprepro will try the first supported variant in the list given:
+Only compressions compiled in or for which an uncompressor was found
+are used.
+Unless the value starts with \fBforce.\fP,
+it is only tried if is found in the Release or InRelease file.
+
+The default value is \fB.diff .xz .lzma .bz2 .gz .\fP, i.e.
+download Packages.diff if listed in the Release file,
+otherwise or if not usable download .xz if
+listed in the Release file and there is a way to uncompress it,
+then .lzma if usable,
+then .bz2 if usable,
+then .gz and then uncompressed).
+
+Note there is no way to see if an uncompressed variant
+of the file is available (as the Release file always lists their
+checksums, even if not there),
+so putting '\fB.\fP' anywhere but as the last argument can mean
+trying to download a file that does not exist.
+
+Together with \fBIgnoreRelease\fP reprepro will download the first
+in this list that could be unpacked (i.e. \fBforce\fP is always assumed)
+and the default value is \fB.gz .bzip2 . .lzma .xz\fP.
+.SS conf/pulls
+This file contains the rules for pulling packages from one
+distribution to another.
+While this can also be done with update rules using the file
+or copy method and using the exported indices of that other
+distribution, this way is faster.
+It also ensures the current files are used and no copies
+are made.
+(This also leads to the limitation that pulling from one
+component to another is not possible.)
+
+Each rule consists out of the following fields:
+.TP
+.B Name
+The name of this pull rule as it can be used in the
+.B Pull
+field in conf/distributions.
+.TP
+.B From
+The codename of the distribution to pull packages from.
+.TP
+.B Components
+The components of the distribution to get from.
+
+If this field is not there,
+all components from the distribution to  update are tried.
+
+A rule might list components not available in all distributions using this
+rule. In this case unknown components are silently ignored.
+(Unless you start reprepro with the \-\-fast option,
+it will warn about components unusable in all distributions using that rule.
+As exception, unusable components called \fBnone\fP are never warned about,
+for compatibility with versions prior to 3.0.0 where and empty field had
+a different meaning.)
+.TP
+.B Architectures
+The architectures to update.
+If omitted all from the distribution to pull from.
+As in
+.BR conf/updates ,
+you can use ">" to download
+from one architecture and add into another one. (And again, only useful
+with filtering to avoid packages not architecture \fBall\fP to migrate).
+.TP
+.B UDebComponents
+Like
+.B Components
+but for the udebs.
+.TP
+.B FilterFormula
+.TP
+.B FilterList
+.TP
+.B FilterSrcList
+The same as with update rules.
+.SH "OVERRIDE FILES"
+The format of override files used by reprepro
+should resemble the extended ftp\-archive format,
+to be specific it is:
+
+.B \fIpackagename\fP \fIfield name\fP \fInew value\fP
+
+For example:
+.br
+.B kernel\-image\-2.4.31\-yourorga Section protected/base
+.br
+.B kernel\-image\-2.4.31\-yourorga Priority standard
+.br
+.B kernel\-image\-2.4.31\-yourorga Maintainer That's me <me@localhost>
+.br
+.B reprepro Priority required
+
+All fields of a given package will be replaced by the new value specified
+in the override file
+with the exception of special fields starting with a dollar sign ($).
+While the field name is compared case-insensitive, it is copied in
+exactly the form in the override file there.
+(Thus I suggest to keep to the exact case it is normally found in
+index files in case some other tool confuses them.)
+More than copied is the Section header (unless \fB\-S\fP is supplied),
+which is also used to guess the component (unless \fB\-C\fP is there).
+
+Some values like \fBPackage\fP, \fBFilename\fP, \fBSize\fP or \fBMD5sum\fP
+are forbidden, as their usage would severely confuse reprepro.
+
+As an extension reprepro also supports patterns instead of packagenames.
+If the package name contains '*', '[' or '?',
+it is considered a pattern
+and applied to each package
+that is not matched by any non-pattern override nor by any previous pattern.
+
+Fieldnames starting with a dollar ($) are not be placed in the
+exported control data but have special meaning.
+Unknown ones are loudly ignored.
+Special fields are:
+
+ \fB$Component\fP: includedeb, includedsc, include and processincoming
+will put the package in the component given as value
+(unless itself overridden with \fB\-C\fP).
+Note that the proper way to specify the component is by setting the
+section field and using this extension will most likely confuse people
+and/or tools.
+
+ \fB$Delete\fP: the value is treated a fieldname and fields of that
+name are removed.
+(This way one can remove fields previously added without removing and
+re-adding the package.
+And fields already included in the package can be removed, too).
+
+.SS conf/incoming
+Every chunk is a rule set for the
+.B process_incoming
+command.
+Possible fields are:
+.TP
+.B Name
+The name of the rule-set, used as argument to the scan command to specify
+to use this rule.
+.TP
+.B IncomingDir
+The Name of the directory to scan for
+.B .changes
+files.
+.TP
+.B TempDir
+A directory where the files listed in the processed .changes files
+are copied into before they are read.
+You can avoid some copy operations by placing this directory
+within the same mount point the pool hierarchy
+is (at least partially) in.
+.TP
+.B LogDir
+A directory where .changes files, .log files, .buildinfo files
+and otherwise unused .byhand files are stored upon procession.
+.TP
+.B Allow
+Each argument is either a pair \fIname1\fB>\fIname2\fR or simply
+\fIname\fP which is short for \fIname\fB>\fIname\fR.
+Each \fIname2\fP must identify a distribution,
+either by being Codename, a unique Suite, or a unique AlsoAcceptFor
+from \fBconf/distributions\fP.
+Each upload has each item in its
+.B Distribution:
+header compared first to last with each \fIname1\fP in the rules
+and is put in the first one accepting this package.  e.g.:
+.br
+Allow: local unstable>sid
+.br
+or
+.br
+Allow: stable>security\-updates stable>proposed\-updates
+.br
+(Note that this makes only sense if Multiple is set to true or if
+there are people only allowed to upload to proposed\-updates but
+not to security\-updates).
+.TP
+.B Default \fIdistribution
+Every upload not put into any other distribution because
+of an Allow argument is put into \fIdistribution\fP if that
+accepts it.
+.TP
+.B Multiple
+Old form of Options: multiple_distributions.
+.TP
+.B Options
+A list of options
+.br
+.B multiple_distributions
+.br
+Allow including a upload in multiple distributions.
+
+If a .changes file lists multiple distributions,
+then reprepro will start with the first name given,
+check all Accept and Default options till it finds
+a distribution this upload can go into.
+
+If this found no distribution or if this option was given,
+reprepro will then do the same with the second distribution name
+given in the .changes file and so on.
+.br
+.B limit_arch_all
+.br
+If an upload contains binaries from some architecture and architecture
+all packages,
+the architecture all packages are only put into the architectures within
+this upload.
+Useful to combine with the \fBflood\fP command.
+.TP
+.B Permit
+A list of options to allow things otherwise causing errors:
+.br
+.B unused_files
+.br
+Do not stop with error if there are files listed in the \fB.changes\fP
+file if it lists files not belonging to any package in it.
+.br
+.B older_version
+.br
+Ignore a package not added because there already is a strictly newer
+version available instead of treating this as an error.
+.br
+.B unlisted_binaries
+.br
+Do not abort with an error if a .changes file contains .deb files that
+are not listed in the Binaries header.
+.TP
+.B Cleanup \fIoptions
+A list of options to cause more files in the incoming directory to be
+deleted:
+.br
+.B unused_files
+.br
+If there is \fBunused_files\fP in \fBPermit\fP then also delete those
+files when the package is deleted after successful processing.
+.br
+.B unused_buildinfo_files
+.br
+If .buildinfo files of processed .changes files are not used (neither
+stored by LogDir nor with Tracking: includebuildinfos) then delete them
+from the incoming dir.
+(This option has no additional effect if \fBunused_files\fP is already used.)
+.br
+.B on_deny
+.br
+If a \fB.changes\fP file is denied processing because of missing signatures
+or allowed distributions to be put in, delete it and all the files it references.
+.br
+.B on_error
+.br
+If a \fB.changes\fP file causes errors while processing, delete it and the files
+it references.
+
+Note that allowing cleanup in publicly accessible incoming queues allows a denial
+of service by sending in .changes files deleting other peoples files before they
+are completed.
+Especially when .changes files are handled directly (e.g. by inoticoming).
+
+.TP
+.B MorgueDir
+If files are to be deleted by Cleanup, they are instead moved to a subdirectory
+of the directory given as value to this field.
+This directory has to be on the same partition as the incoming directory and
+files are moved (i.e. owner and permission stay the same) and never copied.
+
+.SH "UPLOADERS FILES"
+These files specified by the \fBUploaders\fP header in the distribution
+definition as explained above describe what key a \fB.changes\fP file
+as to be signed with to be included in that distribution.
+.P
+Empty lines and lines starting with a hash are ignored, every other line
+must be of one of the following nine forms or an include directive:
+.TP
+.B allow \fIcondition\fP by anybody
+which allows everyone to upload packages matching \fIcondition\fP,
+.TP
+.B allow \fIcondition\fP by unsigned
+which allows everything matching that has no pgp/gpg header,
+.TP
+.B allow \fIcondition\fP by any key
+which allows everything matching with any valid signature in or
+.TP
+.B allow \fIcondition\fP by key \fIkey-id\fP
+which allows everything matching signed by this \fIkey-id\fP
+(to be specified without any spaces).
+If the \fIkey-id\fP ends with a \fB+\fP (plus), a signature with a subkey of
+this primary key also suffices.
+
+\fIkey-id\fP must be a suffix of the id libgpgme uses to identify this key,
+i.e. a number of hexdigits from the end of the fingerprint of the key, but
+no more than what libgpgme uses.
+(The maximal number should be what gpg \-\-list-key \-\-with\-colons prints,
+as of the time of this writing that is at most 16 hex-digits).
+.TP
+.B allow \fIcondition\fP by group \fIgroupname\fP
+which allows every member of group \fIgroupname\fP.
+Groups can be manipulated by
+.TP
+.B group \fIgroupname\fP add \fIkey-id\fP
+to add a \fIkey-id\fP (see above for details) to this group, or
+.TP
+.B group \fIgroupname\fP contains \fIgroupname\fP
+to add a whole group to a group.
+
+To avoid warnings in incomplete config files there is also
+.TP
+.B group \fIgroupname\fP empty
+to declare a group has no members (avoids warnings that it is used without those)
+and
+.TP
+.B group \fIgroupname\fP unused
+to declare that a group is not yet used (avoid warnings that it is not used).
+.PP
+A line starting with \fBinclude\fP causes the rest of the line to be
+interpreted as filename, which is opened and processed before the rest
+of the file is processed.
+
+The only conditions currently supported are:
+.TP
+.B *
+which means any package,
+.TP
+.BI "source '" name '
+which means any package with source \fIname\fP.
+('\fB*\fP', '\fB?\fP' and '\fB[\fP..\fB]\fP' are treated as in shell wildcards).
+.TP
+.B sections '\fIname\fP'\fR(\fP|'\fIname\fP'\fR)*\fP
+matches an upload in which each section matches one of the names
+given.
+As upload conditions are checked very early,
+this is the section listed in the .changes file,
+not the one from the override file.
+(But this might change in the future,
+if you have the need for the one or the other behavior, let me know).
+.TP
+.B sections contain '\fIname\fP'\fR(\fP|'\fIname\fP'\fR)*\fP
+The same, but not all sections must be from the given set,
+but at least one source or binary package needs to have one of those given.
+.TP
+.B binaries '\fIname\fP'\fR(\fP|'\fIname\fP'\fR)*\fP
+matches an upload in which each binary (type deb or udeb)
+matches one of the names given.
+.TP
+.B binaries contain '\fIname\fP'\fR(\fP|'\fIname\fP'\fR)*\fP
+again only at least one instead of all is required.
+.TP
+.B architectures '\fIarchitecture\fP'\fR(\fP|'\fIname\fP'\fR)*\fP
+matches an upload in which each package has only architectures
+from the given set.
+\fBsource\fP and \fBall\fP are treated as unique architectures.
+Wildcards are not allowed.
+.TP
+.B architectures contain '\fIarchitecture\fP'\fR(\fP|'\fIarchitecture\fP'\fR)*\fP
+again only at least one instead of all is required.
+.TP
+.B byhand
+matches an upload with at least one byhand file
+(i.e. a file with section \fBbyhand\fP or \fBraw\-\fP\fIsomething\fP).
+.TP
+.B byhand '\fIsection\fP'\fR(\fP|'\fIsection\fP'\fR)*\fP
+matches an upload with at least one byhand file and
+all byhand files having a section listed in the list of given section.
+(i.e. \fBbyhand 'byhand'|'raw\-*'\fP is currently is the same as \fBbyhand\fP).
+.TP
+.BI "distribution '" codename '
+which means any package when it is to be included in \fIcodename\fP.
+As the uploaders file is given by distribution, this is only useful
+to reuse a complex uploaders file for multiple distributions.
+.PP
+Putting \fBnot\fP in front of a condition, inverses it's meaning.
+For example
+.br
+\fBallow not source 'r*' by anybody\fP
+.br
+means anybody may upload packages which source name does not start
+with an 'r'.
+.PP
+Multiple conditions can be connected with \fBand\fP and \fBor\fP,
+with \fBor\fP binding stronger (but both weaker than \fBnot\fP).
+That means
+.br
+\fBallow source 'r*' and source '*xxx' or source '*o' by anybody\fP
+.br
+is equivalent to
+.br
+\fBallow source 'r*xxx' by anybody\fP
+.br
+\fBallow source 'r*o' by anybody\fP
+
+(Other conditions
+will follow once somebody tells me what restrictions are useful.
+Currently planned is only something for architectures).
+.SH "ERROR IGNORING"
+With \fB\-\-ignore\fP on the command line or an \fIignore\fP
+line in the options file, the following type of errors can be
+ignored:
+.TP
+.B brokenold \fR(hopefully never seen)
+If there are errors parsing an installed version of package, do not
+error out, but assume it is older than anything else, has not files
+or no source name.
+.TP
+.B brokensignatures
+If a .changes or .dsc file contains at least one invalid signature
+and no valid signature (not even expired or from an expired or revoked key),
+reprepro assumes the file got corrupted and refuses to use it unless this
+ignore directive is given.
+.TP
+.B brokenversioncmp \fR(hopefully never seen)
+If comparing old and new version fails, assume the new one is newer.
+.TP
+.B dscinbinnmu
+If a .changes file has an explicit Source version that is different the
+to the version header of the file,
+than reprepro assumes it is binary non maintainer upload (NMU).
+In that case, source files are not permitted in .changes files
+processed by
+.B include
+or
+.BR processincoming .
+Adding \fB\-\-ignore=dscinbinnmu\fP allows it for the \fBinclude\fP
+command.
+.TP
+.B emptyfilenamepart \fR(insecure)
+Allow strings to be empty that are used to construct filenames.
+(like versions, architectures, ...)
+.TP
+.B extension
+Allow one to \fBincludedeb\fP files that do not end with \fB.deb\fP,
+to \fBincludedsc\fP files not ending in \fB.dsc\fP and to
+\fBinclude\fP files not ending in \fB.changes\fP.
+.TP
+.B forbiddenchar \fR(insecure)
+Do not insist on Debian policy for package and source names
+and versions.
+Thus allowing all 7-bit characters but slashes (as they would
+break the file storage) and things syntactically active
+(spaces, underscores in filenames in .changes files, opening
+parentheses in source names of binary packages).
+To allow some 8-bit chars additionally, use \fB8bit\fP additionally.
+.TP
+.B 8bit \fR(more insecure)
+Allow 8-bit characters not looking like overlong UTF-8 sequences
+in filenames and things used as parts of filenames.
+Though it hopefully rejects overlong UTF-8 sequences, there might
+be other characters your filesystem confuses with special characters,
+thus creating filenames possibly equivalent to
+\fB/mirror/pool/main/../../../etc/shadow\fP
+(Which should be safe, as you do not run reprepro as root, do you?)
+or simply overwriting your conf/distributions file adding some commands
+in there. So do not use this if you are paranoid, unless you are paranoid
+enough to have checked the code of your libs, kernel and filesystems.
+.TP
+.B ignore \fR(for forward compatibility)
+Ignore unknown ignore types given to \fI\-\-ignore\fP.
+.TP
+.B flatandnonflat \fR(only suppresses a warning)
+Do not warn about a flat and a non-flat distribution from the same
+source with the same name when updating.
+(Hopefully never ever needed.)
+.TP
+.B malformedchunk \fR(I hope you know what you do)
+Do not stop when finding a line not starting with a space but
+no colon(:) in it. These are otherwise rejected as they have no
+defined meaning.
+.TP
+.B missingfield \fR(safe to ignore)
+Ignore missing fields in a .changes file that are only checked but
+not processed.
+Those include: Format, Date, Urgency, Maintainer, Description, Changes
+.TP
+.B missingfile \fR(might be insecure)
+When including a .dsc file from a .changes file,
+try to get files needed but not listed in the .changes file
+(e.g. when someone forgot to specify \-sa to dpkg\-buildpackage)
+from the directory the .changes file is in instead of erroring out.
+(\fB\-\-delete\fP will not work with those files, though.)
+.TP
+.B spaceonlyline \fR(I hope you know what you do)
+Allow lines containing only (but non-zero) spaces. As these
+do not separate chunks as thus will cause reprepro to behave
+unexpected, they cause error messages by default.
+.TP
+.B surprisingarch
+Do not reject a .changes file containing files for a
+architecture not listed in the Architecture-header within it.
+.TP
+.B surprisingbinary
+Do not reject a .changes file containing .deb files containing
+packages whose name is not listed in the "Binary:" header
+of that changes file.
+.TP
+.B undefinedtarget \fR(hope you are not using the wrong db directory)
+Do not stop when the packages.db file contains databases for
+codename/packagetype/component/architectures combinations that are
+not listed in your distributions file.
+
+This allows you to temporarily remove some distribution from the config files,
+without having to remove the packages in it with the \fBclearvanished\fP
+command.
+You might even temporarily remove single architectures or components,
+though that might cause inconsistencies in some situations.
+.TP
+.B undefinedtracking \fR(hope you are not using the wrong db directory)
+Do not stop when the tracking file contains databases for
+distributions that are not listed in your \fBdistributions\fP file.
+
+This allows you to temporarily remove some distribution from the config files,
+without having to remove the packages in it with the \fBclearvanished\fP
+command.
+You might even temporarily disable tracking in some distribution, but that
+is likely to cause inconsistencies in there, if you do not know, what you
+are doing.
+.TP
+.B unknownfield \fR(for forward compatibility)
+Ignore unknown fields in the config files, instead of refusing to run
+then.
+.TP
+.B unusedarch \fR(safe to ignore)
+No longer reject a .changes file containing no files for any of the
+architectures listed in the Architecture-header within it.
+.TP
+.B unusedoption
+Do not complain about command line options not used by the
+specified action (like \fB\-\-architecture\fP).
+.TP
+.B uploaders
+The include command will accept packages that would otherwise been
+rejected by the uploaders file.
+.TP
+.B wrongarchitecture \fR(safe to ignore)
+Do not warn about wrong "Architecture:" lines in downloaded
+Packages files.
+(Note that wrong Architectures are always ignored when getting
+stuff from flat repositories or importing stuff from one architecture
+to another).
+.TP
+.B wrongdistribution \fR(safe to ignore)
+Do not error out if a .changes file is to be placed in a
+distribution not listed in that files' Distributions: header.
+.TP
+.B wrongsourceversion
+Do not reject a .changes file containing .deb files with
+a different opinion on what the version of the source package is.
+.br
+(Note: reprepro only compares literally here, not by meaning.)
+.TP
+.B wrongversion
+Do not reject a .changes file containing .dsc files with
+a different version.
+.br
+(Note: reprepro only compares literally here, not by meaning.)
+.TP
+.B expiredkey \fR(I hope you know what you do)
+Accept signatures with expired keys.
+(Only if the expired key is explicitly requested).
+.TP
+.B expiredsignature \fR(I hope you know what you do)
+Accept expired signatures with expired keys.
+(Only if the key is explicitly requested).
+.TP
+.B revokedkey \fR(I hope you know what you do)
+Accept signatures with revoked keys.
+(Only if the revoked key is explicitly requested).
+.SH GUESSING
+When including a binary or source package without explicitly
+declaring a component with
+.B \-C
+it will take the
+first component with the name of the section, being
+prefix to the section, being suffix to the section
+or having the section as prefix or any. (In this order)
+
+Thus having specified the components:
+"main non\-free contrib non\-US/main non\-US/non\-free non\-US/contrib"
+should map e.g.
+"non\-US" to "non\-US/main" and "contrib/editors" to "contrib",
+while having only "main non\-free and contrib" as components should
+map "non\-US/contrib" to "contrib" and "non\-US" to "main".
+
+.B NOTE:
+Always specify main as the first component, if you want things
+to end up there.
+
+.B NOTE:
+unlike in dak, non\-US and non\-us are different things...
+.SH NOMENCLATURE
+.B Codename
+the primary identifier of a given distribution. This are normally
+things like \fBsarge\fP, \fBetch\fP or \fBsid\fP.
+.TP
+.B basename
+the name of a file without any directory information.
+.TP
+.B byhand
+Changes files can have files with section 'byhand' (Debian) or 'raw\-' (Ubuntu).
+Those files are not packages but other data generated (usually together with
+packages) and then uploaded together with this changes files.
+
+With reprepro those can be stored in the pool next to their packages with
+tracking, put in some log directory when using processincoming, or given to
+an hook script (currently only possible with processincoming).
+.TP
+.B filekey
+the position relative to the outdir.  (as found in "Filename:" in Packages.gz)
+.TP
+.B "full filename"
+the position relative to /
+.TP
+.B architecture
+The term like \fBsparc\fP, \fBi386\fP, \fBmips\fP, ... .
+To refer to the source packages, \fBsource\fP
+is sometimes also treated as architecture.
+.TP
+.B component
+Things like \fBmain\fP, \fBnon\-free\fP and \fBcontrib\fP
+(by policy and some other programs also called section, reprepro follows
+the naming scheme of apt here.)
+.TP
+.B section
+Things like \fBbase\fP, \fBinterpreters\fP, \fBoldlibs\fP and \fBnon\-free/math\fP
+(by policy and some other programs also called subsections).
+.TP
+.B md5sum
+The checksum of a file in the format
+"\fI<md5sum of file>\fP \fI<length of file>\fP"
+.SH Some note on updates
+.SS A version is not overwritten with the same version.
+.B reprepro
+will never update a package with a version it already has. This would
+be equivalent to rebuilding the whole database with every single upgrade.
+To force the new same version in, remove it and then update.
+(If files of
+the packages changed without changing their name, make sure the file is
+no longer remembered by reprepro.
+Without \fB\-\-keepunreferencedfiled\fP
+and without errors while deleting it should already be forgotten, otherwise
+a \fBdeleteunreferenced\fP or even some \fB__forget\fP might help.)
+.SS The magic delete rule ("\-").
+A minus as a single word in the
+.B Update:
+line of a distribution marks everything to be deleted. The mark causes later rules
+to get packages even if they have (strict) lower versions. The mark will
+get removed if a later rule sets the package on hold (hold is not yet implemented,
+in case you might wonder) or would get a package with the same version
+(Which it will not, see above). If the mark is still there at the end of the processing,
+the package will get removed.
+.P
+Thus the line "Update: \-
+.I rules
+" will cause all packages to be exactly the
+highest Version found in
+.I rules.
+The line "Update:
+.I near
+\-
+.I rules
+" will do the same, except if it needs to download packages, it might download
+it from
+.I near
+except when too confused. (It will get too confused e.g. when
+.I near
+or
+.I rules
+have multiple versions of the package and the highest in
+.I near
+is not the first one in
+.I rules,
+as it never remember more than one possible spring for a package.
+.P
+Warning: This rule applies to all type/component/architecture triplets
+of a distribution, not only those some other update rule applies to.
+(That means it will delete everything in those!)
+.SH ENVIRONMENT VARIABLES
+Environment variables are always overwritten by command line options,
+but overwrite options set in the \fBoptions\fP file. (Even when the
+options file is obviously parsed after the environment variables as
+the environment may determine the place of the options file).
+.TP
+.B REPREPRO_BASE_DIR
+The directory in this variable is used instead of the current directory,
+if no \fB\-b\fP or \fB\-\-basedir\fP options are supplied.
+.br
+It is also set in all hook scripts called by reprepro
+(relative to the current directory or absolute,
+depending on how reprepro got it).
+.TP
+.B REPREPRO_CONFIG_DIR
+The directory in this variable is used when no \fB\-\-confdir\fP is
+supplied.
+.br
+It is also set in all hook scripts called by reprepro
+(relative to the current directory or absolute,
+depending on how reprepro got it).
+.TP
+.B REPREPRO_OUT_DIR
+This is not used, but only set in hook scripts called by reprepro
+to the directory in which the \fBpool\fP subdirectory resides
+(relative to the current directory or absolute,
+depending on how reprepro got it).
+.TP
+.B REPREPRO_DIST_DIR
+This is not used, but only set in hook scripts called by reprepro
+to the \fBdists\fP directory (relative to the current directory or
+absolute, depending on how reprepro got it).
+.TP
+.B REPREPRO_LOG_DIR
+This is not used, but only set in hook scripts called by reprepro
+to the value setable by \fB\-\-logdir\fP.
+.TP
+.B REPREPRO_CAUSING_COMMAND
+.TP
+.B REPREPRO_CAUSING_FILE
+Those two environment variable are set (or unset) in
+\fBLog:\fP and \fBByHandHooks:\fP scripts and hint what command
+and what file caused the hook to be called (if there is some).
+.TP
+.B REPREPRO_CAUSING_RULE
+This environment variable is set (or unset) in
+\fBLog:\fP scripts and hint what update or pull rule caused
+this change.
+.TP
+.B REPREPRO_FROM
+This environment variable is set (or unset) in
+\fBLog:\fP scripts and denotes what other distribution a
+package is copied from (with pull and copy commands).
+.TP
+.B REPREPRO_FILTER_ARCHITECTURE
+.TP
+.B REPREPRO_FILTER_CODENAME
+.TP
+.B REPREPRO_FILTER_COMPONENT
+.TP
+.B REPREPRO_FILTER_PACKAGETYPE
+.TP
+.B REPREPRO_FILTER_PATTERN
+Set in \fBFilterList:\fP and \fBFilterSrcList:\fP  scripts.
+.TP
+.B GNUPGHOME
+Not used by reprepro directly.
+But reprepro uses libgpgme, which calls gpg for signing and verification
+of signatures.
+And your gpg will most likely use the content of this variable
+instead of "~/.gnupg".
+Take a look at
+.BR gpg (1)
+to be sure.
+You can also tell reprepro to set this with the \fB\-\-gnupghome\fP option.
+.TP
+.B GPG_TTY
+When there is a gpg\-agent running that does not have the passphrase
+cached yet, gpg will most likely try to start some pinentry program
+to get it.
+If that is pinentry\-curses, that is likely to fail without this
+variable, because it cannot find a terminal to ask on.
+In this cases you might set this variable to something like
+the value of
+.B $(tty)
+or
+.B $SSH_TTY
+or anything else denoting a usable terminal. (You might also
+want to make sure you actually have a terminal available.
+With ssh you might need the
+.B \-t
+option to get a terminal even when telling gpg to start a specific command).
+
+By default, reprepro will set this variable to what the symbolic link
+.B /proc/self/fd/0
+points to, if stdin is a terminal, unless you told with
+.B \-\-noguessgpgtty
+to not do so.
+.SH BUGS
+Increased verbosity always shows those things one does not want to know.
+(Though this might be inevitable and a corollary to Murphy)
+
+Reprepro uses berkeley db, which was a big mistake.
+The most annoying problem not yet worked around is database corruption
+when the disk runs out of space.
+(Luckily if it happens while downloading packages while updating,
+only the files database is affected, which is easy (though time consuming)
+to rebuild, see \fBrecovery\fP file in the documentation).
+Ideally put the database on another partition to avoid that.
+
+While the source part is mostly considered as the architecture
+.B source
+some parts may still not use this notation.
+.SH "WORK-AROUNDS TO COMMON PROBLEMS"
+.TP
+.B gpgme returned an impossible condition
+With the woody version this normally meant that there was no .gnupg
+directory in $HOME, but it created one and reprepro succeeds when called
+again with the same command.
+Since sarge the problem sometimes shows up, too. But it is no longer
+reproducible and it does not fix itself, neither. Try running
+\fBgpg \-\-verify \fP\fIfile-you-had-problems-with\fP manually as the
+user reprepro is running and with the same $HOME. This alone might
+fix the problem. It should not print any messages except perhaps
+.br
+gpg: no valid OpenPGP data found.
+.br
+gpg: the signature could not be verified.
+.br
+if it was an unsigned file.
+.TP
+.B not including .orig.tar.gz when a .changes file's version does not end in \-0 or \-1
+If dpkg\-buildpackage is run without the \fB\-sa\fP option to build a version with
+a Debian revision not being \-0 or \-1, it does not list the \fB.orig.tar.gz\fP file
+in the \fB.changes\fP file.
+If you want to \fBinclude\fP such a file with reprepro
+when the .orig.tar.gz file does not already exist in the pool, reprepro will report
+an error.
+This can be worked around by:
+.br
+call \fBdpkg\-buildpackage\fP with \fB\-sa\fP (recommended)
+.br
+copy the .orig.tar.gz file to the proper place in the pool before
+.br
+call reprepro with \-\-ignore=missingfile (discouraged)
+.TP
+.B leftover files in the pool directory.
+reprepro is sometimes a bit too timid of deleting stuff. When things
+go wrong and there have been errors it sometimes just leaves everything
+where it is.
+To see what files reprepro remembers to be in your pool directory but
+does not know anything needing them right know, you can use
+.br
+\fBreprepro dumpunreferenced\fP
+.br
+To delete them:
+.br
+\fBreprepro deleteunreferenced\fP
+.SH INTERRUPTING
+Interrupting reprepro has its problems.
+Some things (like speaking with apt methods, database stuff) can cause
+problems when interrupted at the wrong time.
+Then there are design problems of the code making it hard to distinguish
+if the current state is dangerous or non-dangerous to interrupt.
+Thus if reprepro receives a signal normally sent to tell a process to
+terminate itself softly,
+it continues its operation, but does not start any new operations.
+(I.e. it will not tell the apt\-methods any new file to download, it will
+not replace a package in a target, unless it already had started with it,
+it will not delete any files gotten dereferenced, and so on).
+
+\fBIt only catches the first signal of each type. The second signal of a
+given type will terminate reprepro. You will risk database corruption
+and have to remove the lockfile manually.\fP
+
+Also note that even normal interruption leads to code-paths mostly untested
+and thus expose a multitude of bugs including those leading to data corruption.
+Better think a second more before issuing a command than risking the need
+for interruption.
+.SH "REPORTING BUGS"
+Report bugs or wishlist requests to the Debian BTS
+.br
+(e.g. by using \fBreportbug reprepro\fP under Debian)
+.br
+or directly to
+.MTO brlink@debian.org
+.SH COPYRIGHT
+Copyright \(co 2004,2005,2006,2007,2008,2009,2010,2011,2012
+.URL http://www.brlink.eu "Bernhard R. Link"
+.br
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
diff --git a/docs/reprepro.bash_completion b/docs/reprepro.bash_completion
new file mode 100644
index 0000000..062397e
--- /dev/null
+++ b/docs/reprepro.bash_completion
@@ -0,0 +1,742 @@
+_reprepro()
+{
+	local cur prev commands options noargoptions i state cmd ignores hiddencommands commands codenames confdir outdir basedir architectures components importrules snapshots
+
+	confdir=""
+	basedir=""
+	outdir=""
+	distdir=""
+
+	# for parsing configs consider:
+	# - command line arguments take priority over <confdir>/options take priority over environment variables
+	# - all the ways to set confdir may start with '+b/' to denote the basedir to be used.
+	# - basedir might also be set in <confdir>/options (which obviously does not change where this file is)
+
+	function parse_config() {
+		local conffile distfile
+		if [[ -n "$confdir" ]] ; then
+			conffile="$confdir/options"
+			distfile="$confdir/distributions"
+		elif [[ -n "${REPREPRO_CONFIG_DIR:+set}" ]] ; then
+			conffile="$REPREPRO_CONFIG_DIR/options"
+			distfile="$REPREPRO_CONFIG_DIR/distributions"
+		else
+			conffile="+b/conf/options"
+			distfile="+b/conf/distributions"
+		fi
+		confbasedir="${basedir:-${REPREPRO_BASE_DIR:-.}}"
+		if [ x"${conffile#+b/}" != x"${conffile}" ] ; then
+			conffile="$confbasedir/${conffile#+b/}"
+		fi
+		if [ -z "$basedir" ] && [[ -e "$conffile" ]] && grep -q '^basedir ' -- "$conffile" 2>/dev/null  ; then
+			confbasedir="$(grep '^basedir ' -- "$conffile" 2>/dev/null | sed -e 's/^basedir *//')"
+		fi
+		if [ -z "$confdir" ] && [[ -e "$conffile" ]] && grep -q '^confdir ' -- "$conffile" 2>/dev/null ; then
+			distfile="$(grep '^confdir ' -- "$conffile" 2>/dev/null | sed -e 's/^confdir *//')/distributions"
+		fi
+		if [ x"${distfile#+b/}" != x"${distfile}" ] ; then
+			distfile="$confbasedir/${distfile#+b/}"
+		fi
+		if [[ -d "$distfile" ]] ; then
+			codenames="$(awk -- '/^[Cc][Oo][Dd][Ee][Nn][Aa][Mm][Ee]: / {$1="";print}' "$distfile"/*.conf)"
+			architectures="$(awk -- '/^[Aa][Rr][Cc][Hh][Ii][Tt][Ee][Cc][Tt][Uu][Rr][Ee][Ss]: / {$1="";print}' "$distfile"/*.conf)"
+			components="$(awk -- '/^[Cc][Oo][Mm][Pp][Oo][Nn][Ee][Nn][Tt][Ss]: / {$1="";print}' "$distfile"/*.conf)"
+		elif [[ -e "$distfile" ]] ; then
+			codenames="$(awk -- '/^[Cc][Oo][Dd][Ee][Nn][Aa][Mm][Ee]: / {$1="";print}' "$distfile")"
+			architectures="$(awk -- '/^[Aa][Rr][Cc][Hh][Ii][Tt][Ee][Cc][Tt][Uu][Rr][Ee][Ss]: / {$1="";print}' "$distfile")"
+			components="$(awk -- '/^[Cc][Oo][Mm][Pp][Oo][Nn][Ee][Nn][Tt][Ss]: / {$1="";print}' "$distfile")"
+		else
+			codenames="experimental sid whatever-you-defined"
+			architectures="source i386 abacus whatever-you-defined"
+			components="main contrib non-free whatever-you-defined"
+		fi
+	}
+	function parse_config_for_distdir() {
+		local conffile
+		if [[ -n "$confdir" ]] ; then
+			conffile="$confdir/options"
+		elif [[ -n "${REPREPRO_CONFIG_DIR:+set}" ]] ; then
+			conffile="$REPREPRO_CONFIG_DIR/options"
+		else
+			conffile="+b/conf/options"
+		fi
+		if [ x"${conffile#+b/}" != x"${conffile}" ] ; then
+			conffile="${basedir:-${REPREPRO_BASE_DIR:-.}}/${conffile#+b/}"
+		fi
+		if [ -z "$basedir" ] && [[ -e "$conffile" ]] ; then
+			if grep -q '^basedir ' -- "$conffile" 2>/dev/null ; then
+				basedir="$(grep '^basedir ' -- "$conffile" 2>/dev/null | sed -e 's/^basedir *//')"
+			fi
+		fi
+		if [ -z "$outdir" ] && [[ -e "$conffile" ]] ; then
+			if grep -q '^outdir ' -- "$conffile" 2>/dev/null ; then
+				outdir="$(grep '^outdir ' -- "$conffile" 2>/dev/null | sed -e 's/^outdir *//')"
+			fi
+		fi
+		if [ -z "$distdir" ] && [[ -e "$conffile" ]] ; then
+			if grep -q '^distdir ' -- "$conffile" 2>/dev/null ; then
+				distdir="$(grep '^distdir ' -- "$conffile" 2>/dev/null | sed -e 's/^distdir *//')"
+			fi
+		fi
+		if [ -z "$basedir" ] ; then
+			basedir="${REPREPRO_BASE_DIR:-.}"
+		fi
+		if [ -z "$outdir" ] ; then
+			outdir="${REPREPRO_OUT_DIR:-$basedir}"
+		fi
+		if [ x"${outdir#+b/}" != x"${outdir}" ] ; then
+			outdir="$basedir/${outdir#+b/}"
+		fi
+		if [ -z "$distdir" ] ; then
+			distdir="${REPREPRO_DIST_DIR:-$outdir/dists}"
+		fi
+		if [ x"${distdir#+o/}" != x"${distdir}" ] ; then
+			distdir="$outdir/${distdir#+o/}"
+		elif [ x"${distdir#+b/}" != x"${distdir}" ] ; then
+			distdir="$basedir/${distdir#+b/}"
+		fi
+	}
+	function parse_incoming() {
+		local conffile incomingfile
+		if [[ -n "$confdir" ]] ; then
+			conffile="$confdir/options"
+			incomingfile="$confdir/incoming"
+		elif [[ -n "${REPREPRO_CONFIG_DIR:+set}" ]] ; then
+			conffile="$REPREPRO_CONFIG_DIR/options"
+			incomingfile="$REPREPRO_CONFIG_DIR/incoming"
+		else
+			conffile="+b/conf/options"
+			incomingfile="+b/conf/incoming"
+		fi
+		confbasedir="${basedir:-${REPREPRO_BASE_DIR:-.}}"
+		if [ x"${conffile#+b/}" != x"${conffile}" ] ; then
+			conffile="$confbasedir/${conffile#+b/}"
+		fi
+		if [ -z "$basedir" ] && [[ -e "$conffile" ]] && grep -q '^basedir ' -- "$conffile" 2>/dev/null  ; then
+			confbasedir="$(grep '^basedir ' -- "$conffile" 2>/dev/null | sed -e 's/^basedir *//')"
+		fi
+		if [ -z "$confdir" ] && [[ -e "$conffile" ]] && grep -q '^confdir ' -- "$conffile" 2>/dev/null ; then
+			incomingfile="$(grep '^confdir ' -- "$conffile" 2>/dev/null | sed -e 's/^confdir //')/incoming"
+		fi
+		if [ x"${incomingfile#+b/}" != x"${incomingfile}" ] ; then
+			incomingfile="$confbasedir/${incomingfile#+b/}"
+		fi
+		if [[ -d "$incomingfile" ]] ; then
+			importrules="$(awk -- '/^[Nn][Aa][Mm][Ee]: / {$1="";print}' "$incomingfile"/*.conf)"
+		elif [[ -e "$incomingfile" ]] ; then
+			importrules="$(awk -- '/^[Nn][Aa][Mm][Ee]: / {$1="";print}' "$incomingfile")"
+		else
+			importrules="rule-name"
+		fi
+	}
+
+	COMPREPLY=()
+
+	ignores='ignore flatandnonflat forbiddenchar 8bit emptyfilenamepart\
+		spaceonlyline malformedchunk unknownfield\
+		wrongdistribution missingfield brokenold\
+		undefinedtracking undefinedtarget unusedoption\
+		brokenversioncmp extension unusedarch surprisingarch\
+		surprisingbinary wrongsourceversion wrongversion dscinbinnmu\
+		brokensignatures uploaders missingfile longkeyid\
+	       	expiredkey expiredsignature revokedkey oldfile wrongarchitecture'
+	noargoptions='--delete --nodelete --help -h --verbose -v\
+	--nothingiserror --nolistsdownload --keepunreferencedfiles --keepunusednewfiles\
+	--keepdirectories --keeptemporaries --keepuneededlists\
+	--ask-passphrase --nonothingiserror --listsdownload\
+	--nokeepunreferencedfiles --nokeepdirectories --nokeeptemporaries\
+	--nokeepuneededlists --nokeepunusednewfiles\
+	--noask-passphrase --skipold --noskipold --show-percent \
+	--version --guessgpgtty --noguessgpgtty --verbosedb --silent -s --fast'
+	options='-b -i --basedir --outdir --ignore --unignore --methoddir --distdir --dbdir\
+	--listdir --confdir --logdir --morguedir \
+	--section -S --priority -P --component -C\
+	--architecture -A --type -T --export --waitforlock \
+	--spacecheck --safetymargin --dbsafetymargin\
+	--gunzip --bunzip2 --unlzma --unxz --lunzip --gnupghome --list-format --list-skip --list-max\
+	--outhook --endhook'
+
+	i=1
+	prev=""
+	cmd="XYZnoneyetXYZ"
+	while [[ $i -lt $COMP_CWORD ]] ; do
+		cur=${COMP_WORDS[i]}
+		prev=""
+		case "$cur" in
+			--basedir=*)
+				basedir="${cur#--basedir=}"
+				i=$((i+1))
+				;;
+			--outdir=*)
+				outdir="${cur#--basedir=}"
+				i=$((i+1))
+				;;
+			--distdir=*)
+				distdir="${cur#--basedir=}"
+				i=$((i+1))
+				;;
+			--confdir=*)
+				confdir="${cur#--confdir=}"
+				i=$((i+1))
+				;;
+			--*=*)
+				i=$((i+1))
+				;;
+			-b|--basedir)
+				prev="$cur"
+				basedir="${COMP_WORDS[i+1]}"
+				i=$((i+2))
+				;;
+			--outdir)
+				prev="$cur"
+				outdir="${COMP_WORDS[i+1]}"
+				i=$((i+2))
+				;;
+			--distdir)
+				prev="$cur"
+				distdir="${COMP_WORDS[i+1]}"
+				i=$((i+2))
+				;;
+			--confdir)
+				prev="$cur"
+				confdir="${COMP_WORDS[i+1]}"
+				i=$((i+2))
+				;;
+			-i|--ignore|--unignore|--methoddir|--distdir|--dbdir|--listdir|--section|-S|--priority|-P|--component|-C|--architecture|-A|--type|-T|--export|--waitforlock|--spacecheck|--checkspace|--safetymargin|--dbsafetymargin|--logdir|--gunzip|--bunzip2|--unlzma|--unxz|--lunzip|--gnupghome|--morguedir)
+
+				prev="$cur"
+				i=$((i+2))
+				;;
+			--*|-*)
+				i=$((i+1))
+				;;
+			*)
+				cmd="$cur"
+				i=$((i+1))
+				break
+				;;
+		esac
+	done
+	cur=${COMP_WORDS[COMP_CWORD]}
+	if [[ $i -gt $COMP_CWORD && -n "$prev" ]]; then
+		case "$prev" in
+			-b|--basedir|--outdir|--methoddir|--distdir|--dbdir|--listdir|--confdir)
+        			COMPREPLY=( $( compgen -d  -- $cur ) )
+
+				return 0
+				;;
+			-T|--type)
+        			COMPREPLY=( $( compgen -W "dsc deb udeb"  -- $cur ) )
+				return 0
+				;;
+			-i|--ignore|--unignore)
+        			COMPREPLY=( $( compgen -W "$ignores"  -- $cur ) )
+				return 0
+				;;
+			-P|--priority)
+        			COMPREPLY=( $( compgen -W "required important standard optional extra" -- $cur ) )
+				return 0
+				;;
+			-S|--section)
+        			COMPREPLY=( $( compgen -W "admin base comm contrib devel doc editors electronics embedded games gnome graphics hamradio interpreters kde libs libdevel mail math misc net news non-free oldlibs otherosfs perl python science shells sound tex text utils web x11 contrib/admin contrib/base contrib/comm contrib/contrib contrib/devel contrib/doc contrib/editors contrib/electronics contrib/embedded contrib/games contrib/gnome contrib/graphics contrib/hamradio contrib/interpreters contrib/kde contrib/libs contrib/libdevel contrib/mail contrib/math contrib/misc contrib/net contrib/news contrib/non-free contrib/oldlibs contrib/otherosfs contrib/perl contrib/python contrib/science contrib/shells contrib/sound contrib/tex contrib/text contrib/utils contrib/web contrib/x11 non-free/admin non-free/base non-free/comm non-free/contrib non-free/devel non-free/doc non-free/editors non-free/electronics non-free/embedded non-free/games non-free/gnome non-free/graphics non-free/hamradio non-free/interpreters non-free/kde non-free/libs non-free/libdevel non-free/mail non-free/math non-free/misc non-free/net non-free/news non-free/non-free non-free/oldlibs non-free/otherosfs non-free/perl non-free/python non-free/science non-free/shells non-free/sound non-free/tex non-free/text non-free/utils non-free/web non-free/x11"  -- $cur ) )
+				return 0
+				;;
+			-A|--architecture)
+				parse_config
+        			COMPREPLY=( $( compgen -W "$architectures" -- $cur ) )
+				return 0
+				;;
+			-C|--component)
+				parse_config
+        			COMPREPLY=( $( compgen -W "$components" -- $cur ) )
+				return 0
+				;;
+			--export)
+				COMPREPLY=( $( compgen -W "silent-never never changed lookedat force" -- $cur ) )
+				return 0
+				;;
+			--waitforlock)
+        			COMPREPLY=( $( compgen -W "0 60 3600 86400" -- $cur ) )
+				return 0
+				;;
+			--spacecheck)
+        			COMPREPLY=( $( compgen -W "none full" -- $cur ) )
+				return 0
+				;;
+			--safetymargin)
+        			COMPREPLY=( $( compgen -W "0 1048576" -- $cur ) )
+				return 0
+				;;
+			--dbsafetymargin)
+        			COMPREPLY=( $( compgen -W "0 104857600" -- $cur ) )
+				return 0
+				;;
+		esac
+	fi
+
+	if [[ "XYZnoneyetXYZ" = "$cmd" ]] ; then
+		commands='build-needing\
+			check\
+			checkpool\
+			checkpull\
+			checkupdate\
+			cleanlists\
+			clearvanished\
+			collectnewchecksums\
+			copy\
+			copyfilter\
+			copymatched\
+			copysrc\
+			createsymlinks\
+			deleteunreferenced\
+			deleteifunreferenced\
+			dumpreferences\
+			dumptracks\
+			dumppull\
+			dumpunreferenced\
+			dumpupdate\
+			export\
+			forcerepairdescriptions\
+			flood\
+			generatefilelists\
+			gensnapshot\
+			unreferencesnapshot\
+			include\
+			includedeb\
+			includedsc\
+			includeudeb\
+			list\
+			listfilter\
+			listmatched\
+			ls\
+			lsbycomponent\
+			move\
+			movefilter\
+			movematched\
+			movesrc\
+			predelete\
+			processincoming\
+			pull\
+			remove\
+			removealltracks\
+			removefilter\
+			removematched\
+			removesrc\
+			removesrcs\
+			removetrack\
+			reoverride\
+			repairdescriptions\
+			reportcruft\
+			rereference\
+			rerunnotifiers\
+			restore\
+			restorefilter\
+			restorematched\
+			restoresrc\
+			retrack\
+			sourcemissing\
+			tidytracks\
+			translatefilelists\
+			translatelegacychecksums\
+			unusedsources\
+			update'
+		hiddencommands='__d\
+			__dumpuncompressors
+	       		__extractcontrol\
+		       	__extractfilelist\
+			__extractsourcesection\
+			__uncompress\
+		       	_addchecksums\
+			_addpackage\
+		       	_addreference\
+			_addreferences\
+		       	_detect\
+		       	_dumpcontents\
+		       	_fakeemptyfilelist\
+		       	_forget\
+		       	_listchecksums\
+			_listcodenames\
+		       	_listconfidentifiers\
+		       	_listdbidentifiers\
+			_listmd5sums\
+			_removereference\
+			_removereferences\
+		       	_versioncompare'
+
+		if [[ "$cur" == -* ]]; then
+			case "$cur" in 
+				--ignore=*)
+					COMPREPLY=( $( compgen -W "$ignores"  -- ${cur#--ignore=} ) )
+					;;
+				--unignore=*)
+					COMPREPLY=( $( compgen -W "$ignores"  -- ${cur#--unignore=} ) )
+					;;
+				--component=*)
+					parse_config
+        				COMPREPLY=( $( compgen -W "$components" -- {cur#--component=} ) )
+					;;
+				--architectures=*)
+					parse_config
+        				COMPREPLY=( $( compgen -W "$architectures" -- {cur#--architectures=} ) )
+					;;
+
+				*)
+					COMPREPLY=( $( compgen -W "$options $noargoptions" -- $cur ) )
+					;;
+			esac
+		elif [[ "$cur" == _* ]]; then
+			COMPREPLY=( $( compgen -W "$hiddencommands" -- $cur ) )
+		else
+			COMPREPLY=( $( compgen -W "$commands" -- $cur ) )
+		fi
+		return 0
+	fi
+
+	case "$cmd" in
+		remove|list|listfilter|removefilter|removetrack|listmatched|removematched|removesrc|removesrcs)
+			# first argument is the codename
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				parse_config
+				COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+				return 0
+			fi
+			# these later could also look for stuff, but
+			# that might become a bit slow
+			;;
+		export|update|checkupdate|pull|checkpull|rereference|retrack|removealltracks|tidytracks|dumptracks|check|repairdescriptions|forcerepairdescriptions|reoverride|rerunnotifiers|dumppull|dumpupdate|unusedsources|sourcemissing|reportcruft)
+			# all arguments are codenames
+			parse_config
+			COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+			return 0
+			;;
+
+		processincoming)
+			# arguments are rule-name from conf/incoming
+			parse_config
+			parse_incoming
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				COMPREPLY=( $( compgen -W "$importrules" -- $cur ) )
+				return 0
+			fi
+			;;
+
+		collectnewchecksums|cleanlists|_listcodenames)
+			return 0
+			;;
+
+		checkpool)
+			# first argument can be fast
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				COMPREPLY=( $( compgen -W "fast" -- $cur ) )
+				return 0
+			fi
+			return 0
+			;;
+		flood)
+			# first argument is the codename
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				parse_config
+				COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+				return 0
+			fi
+			# then an architecture might follow
+			if [[ $(( $i + 1 )) -eq $COMP_CWORD ]] ; then
+				parse_config
+        			COMPREPLY=( $( compgen -W "$architectures" -- $cur ) )
+				return 0
+			fi
+			# then nothing else
+			return 0
+			;;
+		build-needing)
+			# first argument is the codename
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				parse_config
+				COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+				return 0
+			fi
+			# then an architecture
+			if [[ $(( $i + 1 )) -eq $COMP_CWORD ]] ; then
+				parse_config
+        			COMPREPLY=( $( compgen -W "$architectures" -- $cur ) )
+				return 0
+			fi
+			# then a glob
+			if [[ $(( $i + 2 )) -eq $COMP_CWORD ]] ; then
+        			COMPREPLY=( $( compgen -W "$cur'\*'" -- $cur ) )
+				return 0
+			fi
+			return 0
+			;;
+		__uncompress)
+			# first argument is method
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				COMPREPLY=( $( compgen -W ".gz .bz2 .lzma .xz .lz" -- $cur ) )
+				return 0
+			fi
+			if [[ $(( $i + 1 )) -eq $COMP_CWORD ]] ; then
+					COMPREPLY=( $( compgen -f -- $cur ) )
+					return 0
+			fi
+			if [[ $(( $i + 2 )) -eq $COMP_CWORD ]] ; then
+					COMPREPLY=( $( compgen -f -- $cur ) )
+					return 0
+			fi
+			return 0
+			;;
+		__extractsourcesection)
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				_filedir dsc
+			fi
+			return 0
+			;;
+		includedeb)
+			# first argument is the codename
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				parse_config
+				COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+				return 0
+			fi
+			# then one .deb file follows
+			if [[ $(( $i + 1 )) -eq $COMP_CWORD ]] ; then
+				_filedir deb
+			fi
+			return 0
+			;;
+		includedsc)
+			# first argument is the codename
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				parse_config
+				COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+				return 0
+			fi
+			# then one .dsc file follows
+			if [[ $(( $i + 1 )) -eq $COMP_CWORD ]] ; then
+				_filedir dsc
+			fi
+			return 0
+			;;
+		include)
+			# first argument is the codename
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				parse_config
+				COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+				return 0
+			fi
+			# then one .changes file follows
+			if [[ $(( $i + 1 )) -eq $COMP_CWORD ]] ; then
+				_filedir changes
+			fi
+			return 0
+			;;
+		gensnapshot|unreferencesnapshot)
+			# first argument is a codename
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				parse_config
+				COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+				return 0
+			fi
+			# then the name of a snapshot, add a suggestion
+			if [[ $(( $i + 1 )) -eq $COMP_CWORD ]] ; then
+				COMPREPLY=( $( compgen -W "$(date +%Y/%m/%d)" -- $cur ) )
+				return 0
+			fi
+			return 0;
+			;;
+		copy|copysrc|copyfilter|copymatched|move|movesrc|movefilter|movematched)
+			# first argument is a codename
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				parse_config
+				COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+				return 0
+			fi
+			# second argument is a codename
+			if [[ $(( $i + 1 )) -eq $COMP_CWORD ]] ; then
+				parse_config
+				COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+				return 0
+			fi
+			# here we could look for package names existing in
+			# that distribution, but that would be slow...
+			;;
+		restore|restoresrc|restorefilter|restorematched)
+			# first argument is a codename
+			if [[ $i -eq $COMP_CWORD ]] ; then
+				parse_config
+				COMPREPLY=( $( compgen -W "$codenames" -- $cur ) )
+				return 0
+			fi
+			# second argument is snapshot of that name
+			if [[ $(( $i + 1 )) -eq $COMP_CWORD ]] ; then
+				parse_config_for_distdir
+				snapshots="$( ls "$distdir/${COMP_WORDS[i]}/snapshots" )"
+				COMPREPLY=( $( compgen -W "$snapshots" -- $cur ) )
+				return 0
+			fi
+			# here we could look for package names existing in
+			# that distribution, but that would be slow...
+			;;
+		__dumpuncompressors|translatelageacychecksums|deleteunreferenced)
+			# no arguments
+			return 0
+			;;
+		deleteifunreferenced)
+			# less useful than the output of dumpunreferenced,
+			# but this way it should be massively faster:
+			parse_config_for_distdir
+			COMPREPLY=( $(cd "$outdir" && compgen -o filenames -f -- $cur) )
+			return 0
+			;;
+	esac
+	COMPREPLY=( $( compgen -f -- $cur ) )
+	return 0
+}
+# This -o filename has its problems when there are directories named like
+# commands in you current directory. But it makes adding filenames so much
+# easier. I wished I knew a way to only active it for those parts that are
+# filenames.
+complete -o filenames -F _reprepro reprepro
+
+_changestool()
+{
+	local cur prev commands options noargoptions i j cmd ignores wascreate changesfilename
+
+	COMPREPLY=()
+
+	ignores=' notyetimplemented '
+	noargoptions='--help --create'
+	options='--ignore --searchpath'
+	wascreate=no
+
+	i=1
+	prev=""
+	while [[ $i -lt $COMP_CWORD ]] ; do
+		cur=${COMP_WORDS[i]}
+		prev=""
+		case "$cur" in
+			--*=*)
+				i=$((i+1))
+				;;
+			-i|--ignore|--unignore|-s|--searchpath)
+				prev="$cur"
+				i=$((i+2))
+				;;
+			--create|-c)
+				i=$((i+1))
+				wascreate=yes
+				;;
+			--*|-*)
+				i=$((i+1))
+				;;
+			*)
+				break
+				;;
+		esac
+	done
+	cur=${COMP_WORDS[COMP_CWORD]}
+	if [[ $i -gt $COMP_CWORD && -n "$prev" ]]; then
+		case "$prev" in
+			-i|--ignore|--unignore)
+        			COMPREPLY=( $( compgen -W "$ignores"  -- $cur ) )
+				return 0
+				;;
+			-s|--searchpath)
+				COMPREPLY=( $( compgen -d  -- $cur ) )
+				return 0
+				;;
+		esac
+	fi
+
+	if [[ $i -ge $COMP_CWORD ]] ; then
+		# No changes filename yet specified:
+		commands='addrawfile adddsc adddeb add includeallsources setdistribution updatechecksums verify'
+
+		if [[ "$cur" == -* ]]; then
+			case "$cur" in
+				*)
+					COMPREPLY=( $( compgen -W "$options $noargoptions" -- $cur ) )
+					;;
+			esac
+			return 0
+		fi
+		if [ "$wascreate" = "yes" ] ; then
+				_filedir
+		else
+				_filedir changes
+		fi
+		return 0
+	fi
+	changesfilename=${COMP_WORDS[i]}
+	i=$((i+1))
+	if [[ $i -ge $COMP_CWORD ]] ; then
+		# No command yet specified:
+		commands='addrawfile adddsc adddeb add includeallsources setdistribution updatechecksums verify'
+		# todo: restrict to add commands when --create and file not yet existing?
+		COMPREPLY=( $( compgen -W "$commands" -- $cur ) )
+		return 0
+	fi
+	cmd=${COMP_WORDS[i]}
+
+	case "$cmd" in
+# with searchpath it should also list the files available there,
+# but I know no easy way to get that done...
+		addrawfile)
+				_filedir
+				return 0
+			;;
+		adddsc)
+				_filedir dsc
+				return 0
+			;;
+		adddeb)
+				_filedir deb
+				return 0
+			;;
+		adddeb)
+				_filedir
+				return 0
+			;;
+		includeallsources)
+			prev="$(grep '^ [0-9a-f]\{32\} \+[0-9]\+ \+[a-zA-Z/0-9.:-]\+ \+[a-zA-Z/0-9.:-]\+ \+[^ ]\+\.dsc$'  -- "$changesfilename" | sed -e 's/^ [0-9a-f]\+ \+[0-9]\+ \+[^ ]\+ \+[^ ]\+ \+//')"
+			j=0
+			options=()
+			for i in $prev ; do
+				if [ -f "$i" ] ; then
+					options=(${options[@]:-} $(grep '^ [0-9a-f]\{32\} \+[0-9]\+ \+[^ ]\+$'  -- "$i" | sed -e 's/^ [0-9a-f]\+ \+[0-9]\+ \+//') )
+				elif [ -f "$(dirname $changesfilename)/$i" ] ; then
+					options=(${options[@]:-} $(grep '^ [0-9a-f]\{32\} \+[0-9]\+ \+[^ ]\+$'  -- "$(dirname $changesfilename)/$i" | sed -e 's/^ [0-9a-f]\+ \+[0-9]\+ \+//') )
+				else
+					cmd="missing"
+				fi
+			done
+			COMPREPLY=( $( compgen -W "${options[@]}" -- $cur ) )
+			# if some .dsc cannot be found or read, offer everything additionally
+			if [ "$cmd" = "missing" ] ; then
+				_filedir
+			fi
+			return 0
+			;;
+		setdistribution)
+			COMPREPLY=( $( compgen -W "unstable testing stable sarge etch lenny sid backports local" -- $cur ) )
+			return 0
+			;;
+		updatechecksums)
+			options="$(grep '^ [0-9a-f]\{32\} \+[0-9]\+ \+[a-zA-Z/0-9.:-]\+ \+[a-zA-Z/0-9.:-]\+ \+[^ ]\+$'  -- "$changesfilename" | sed -e 's/^ [0-9a-f]\+ \+[0-9]\+ \+[^ ]\+ \+[^ ]\+ \+//')"
+			if [ -n "$options" ] ; then
+				COMPREPLY=( $( compgen -W "$options" -- $cur ) )
+			else
+				_filedir
+			fi
+			return 0
+			;;
+		verify)
+			return 0
+			;;
+	esac
+	COMPREPLY=( $( compgen -f -- $cur ) )
+	return 0
+}
+# same problem as above with -o filenames,
+# but I guess still better than without...
+complete -o filenames -F _changestool changestool
+
diff --git a/docs/reprepro.zsh_completion b/docs/reprepro.zsh_completion
new file mode 100644
index 0000000..44a132b
--- /dev/null
+++ b/docs/reprepro.zsh_completion
@@ -0,0 +1,554 @@
+#compdef reprepro
+
+# This is a zsh completion script for reprepro.
+# To make use of it make sure it is stored as _reprepro in your
+# zsh's fpath (like /usr/local/share/zsh/site-functions/).
+#
+# to install as user:
+#
+# mkdir ~/.zshfiles
+# cp reprepro.zsh_completion ~/.zshfiles/_reprepro
+# echo 'fpath=(~/.zshfiles $fpath)' >> ~/.zshrc
+# echo 'autoload -U ~/.zshfiles*(:t)' >> ~/.zshrc
+#
+# make sure compinit is called after those lines in .zshrc
+
+local context state line confdir distfile incomingfile incomingdir outdir basedir confdirset basedirset
+typeset -A opt_args
+local -a codenames architectures list commands hiddencommands
+
+function _reprepro_calcbasedir ()
+{
+	if [[ -n "$opt_args[-b]" ]]; then
+		basedir=${opt_args[-b]}
+		basedirset=true
+	elif [[ -n "$opt_args[--basedir]" ]]; then
+		basedir=${opt_args[--basedir]}
+		basedirset=true
+	elif [[ -n "$REPREPRO_BASE_DIR" ]]; then
+		basedir=${REPREPRO_BASE_DIR}
+		basedirset=true
+	else
+		basedir=$PWD
+		basedirset=false
+	fi
+        if [[ -n "$opt_args[--confdir]" ]]; then
+		confdir=${opt_args[--confdir]}
+	elif [[ -n "$REPREPRO_CONFIG_DIR" ]]; then
+		confdir=${REPREPRO_CONFIG_DIR}
+	else
+		confdir=$basedir/conf
+	fi
+	if [[  -e "$confdir/options" ]] ; then
+		if [ "$basedirset" != "true" ] && grep -q '^basedir ' -- "$confdir/options" 2>/dev/null ; then
+		     	basedir="$(grep '^basedir ' -- "$confdir/options" 2>/dev/null | sed -e 's/^basedir *//')"
+		fi
+	fi
+}
+function _reprepro_filekeys ()
+{
+	_reprepro_calcbasedir
+	if [[ -n "$opt_args[--outdir]" ]]; then
+		outdir=${opt_args[--outdir]}
+	else
+		outdir=$basedir
+	fi
+	list=( $outdir )
+	_files -W list
+}
+
+function _reprepro_calcconfdir ()
+{
+        if [[ -n "$opt_args[--confdir]" ]]; then
+		confdir=${opt_args[--confdir]}
+		confdirset=direct
+	elif [[ -n "$REPREPRO_CONFIG_DIR" ]]; then
+		confdir=${REPREPRO_CONFIG_DIR}
+		confdirset=direct
+	elif [[ -n "$opt_args[-b]" ]]; then
+		confdir=${opt_args[-b]}/conf
+		confdirset=basedir
+		basedirset=true
+	elif [[ -n "$opt_args[--basedir]" ]]; then
+		confdir=${opt_args[--basedir]}/conf
+		confdirset=basedir
+		basedirset=true
+	elif [[ -n "$REPREPRO_BASE_DIR" ]]; then
+		confdir=${REPREPRO_BASE_DIR}/conf
+		confdirset=basedir
+		basedirset=true
+	else
+		confdir=$PWD/conf
+		confdirset=default
+		basedirset=false
+	fi
+	if [ "$confdirset" != "direct" ] && [[  -e "$confdir/options" ]] ; then
+		if grep -q '^confdir ' -- "$confdir/options" 2>/dev/null ; then
+			confdir="$(grep '^confdir ' -- "$confdir/options" 2>/dev/null | sed -e 's/^confdir  *//')"
+		elif [ "$basedirset" = "false" ] \
+		     &&  grep -q '^basedir ' -- "$confdir/options" 2>/dev/null ; then
+		     	confdir="$(grep '^basedir ' -- "$confdir/options" 2>/dev/null | sed -e 's/^basedir *//')/conf"
+		fi
+	fi
+}
+
+function _reprepro_finddistributions ()
+{
+	_reprepro_calcconfdir
+	distfile="$confdir"/distributions
+	test -e "$distfile"
+}
+
+function _reprepro_findincoming ()
+{
+	_reprepro_calcconfdir
+	incomingfile="$confdir"/incoming
+	test -e "$incomingfile"
+}
+
+function _reprepro_grepdistfile ()
+{
+	_reprepro_finddistributions &&
+		if test -d "$distfile" ; then
+			sed -n -e 's#^'"$1"': \(.*\)#\1#p' "$distfile"/*.conf
+		else
+			sed -n -e 's#^'"$1"': \(.*\)#\1#p' "$distfile"
+		fi
+}
+
+function _reprepro_architectures ()
+{
+	architectures=($(_reprepro_grepdistfile '[Aa][Rr][Cc][Hh][Ii][Tt][Ee][Cc][Tt][Uu][Rr][Ee][Ss]')) \
+		|| architectures=(i386 m68k sparc alpha powerpc arm mips mipsel hppa ia64 s390 amd64 ppc64 sh armeb m32r hurd-i386 netbsd-i386 netbsd-alpha kfreebsd-gnu)
+      	_wanted -V 'architectures' expl 'architecture' compadd -a architectures
+}
+
+function _reprepro_components ()
+{
+	components=($(_reprepro_grepdistfile '[Cc][Oo][Mm][Pp][Oo][Nn][Ee][Nn][Tt][Ss]')) \
+		|| components=(main contrib non-free bad)
+      	_wanted -V 'components' expl 'component' compadd -a components
+}
+function _reprepro_codenames () {
+	codenames=($(_reprepro_grepdistfile '[Cc][Oo][Dd][Ee][Nn][Aa][Mm][Ee]')) \
+	|| codenames=(sid lenny etch sarge unstable testing stable local)
+      	_wanted -V 'codenames' expl 'codename' compadd -a codenames
+}
+function _reprepro_identifiers () {
+	_reprepro_finddistributions \
+		&& list=($(if test -d "$distfile" ; then set -- "$distfile"/*.conf ;
+			   else set -- "$distfile" ; fi && awk '
+			/^$/ {for(a=2;a<=acount;a++){
+				for(c=2;c<=ccount;c++){
+				print codename "|" components[c] "|" architectures[a]
+				}
+				if( architectures[a] != "source" ) {
+				for(c=2;c<=uccount;c++){
+				print "u|" codename "|" ucomponents[c] "|" architectures[a]
+				}
+				}
+			     }; acount=0;ccount=0;ucount=0}
+			/^[Cc][Oo][Mm][Pp][Oo][Nn][Ee][Nn][Tt][Ss]: / {ccount = split($0,components); next}
+			/^[Uu][Dd][Ee][Bb][Cc][Oo][Mm][Pp][Oo][Nn][Ee][Nn][Tt][Ss]: / {uccount = split($0,ucomponents); next}
+			/^[Aa][Rr][Cc][Hh][Ii][Tt][Ee][Cc][Tt][Uu][Rr][Ee][Ss]: / {acount = split($0,architectures); next}
+			/^[Cc][Oo][Dd][Ee][Nn][Aa][Mm][Ee]: / {codename = $2; next}
+			END {for(a=2;a<=acount;a++){
+				for(c=2;c<=ccount;c++){
+				print codename "|" components[c] "|" architectures[a]
+				}
+				if( architectures[a] != "source" ) {
+				for(c=2;c<=uccount;c++){
+				print "u|" codename "|" ucomponents[c] "|" architectures[a]
+				}
+				}
+			     }; acount=0;ccount=0;ucount=0}
+			{next}
+			' "$@" )) \
+		|| list=(identifier)
+  	_wanted -V 'identifiers' expl 'identifier' compadd -a list
+}
+function _reprepro_incomings () {
+	_reprepro_findincoming \
+	&& list=($(if test -d "$incomingfile" ; then set -- "$incomingfile"/*.conf ; else set -- "$incomingfile" ; fi && awk '/^[Nn][Aa][Mm][Ee]: / {print $2}' "$@")) \
+	|| list=(rule-name)
+      	_wanted -V 'rule names' expl 'rule name' compadd -a list
+}
+function _reprepro_incomingdir () {
+	local rulename=$1
+	shift
+	_reprepro_findincoming \
+	&& incomingdir=($(if test -d "$incomingfile" ; then set -- "$incomingfile"/*.conf ; else set -- "$incomingfile" ; fi && awk '
+		/^[Ii][Nn][Cc][Oo][Mm][Ii][Nn][Gg][Dd][Ii][Rr]: / {dir=$2; next}
+		/^[Nn][Aa][Mm][Ee]: / {name=$2; next}
+		/^$/ { if( name="'"$rulename"'" ) { print dir } ; next } 
+		END { if( name="'"$rulename"'" ) { print dir }}
+		{next}
+		' "$@"))
+	# needs to be an array, as it might not be absolute...
+	list=( $incomingdir )
+}
+function _reprepro_package_names () {
+#todo get package names?...
+      		_wanted -V 'package names' expl 'package name' compadd name
+}
+function _reprepro_source_package_names () {
+#todo get package names?...
+      	_wanted -V 'source package names' expl 'source package name' compadd name
+}
+
+commands=(
+	build-needing:"list packages likely needing a build"
+	check:"check if all references are correct"
+	checkpool:"check if all files are still there and correct"
+	checkpull:"check what would be pulled"
+	checkupdate:"check what would be updated"
+	cleanlists:"clean unneeded downloaded list files"
+	clearvanished:"remove empty databases"
+	collectnewchecksums:"calculate missing file hashes"
+	copy:"copy a package from one distribution to another"
+	copyfilter:"copy packages from one distribution to another"
+	copymatched:"copy packages from one distribution to another"
+	copysrc:"copy packages belonging to a specific source from one distribution to another"
+	createsymlinks:"create suite symlinks"
+	deleteunreferenced:"delete files without reference"
+	dumpreferences:"dump reference information"
+	dumppull:"dump what would be pulled"
+	dumptracks:"dump tracking information"
+	dumpupdate:"dump what would be updated"
+	dumpunreferenced:"dump files without reference (i.e. unneded)"
+	export:"export index files"
+	forcerepairdescriptions:"forcefully readd lost long descriptions from .deb file"
+	flood:"copy architecture all packages within a distribution"
+	generatefilelists:"pre-prepare filelist caches for all binary packages"
+	gensnapshot:"generate a snapshot"
+	includedeb:"include a .deb file"
+	includedsc:"include a .dsc file"
+	include:"include a .changes file"
+	includeudeb:"include a .udeb file"
+	listfilter:"list packages matching filter"
+	listmatched:"list packages matching filter"
+	list:"list packages"
+	ls:"list versions of package"
+	lsbycomponent:"list versions of package (grouped by component)"
+	predelete:"delete what would be removed or superseded by an update"
+	processincoming:"process files from an incoming directory"
+	pull:"update from another local distribtuion"
+	removealltracks:"remove tracking information"
+	remove:"remove packages"
+	removefilter:"remove packages matching a formula"
+	removematched:"remove packages matching a glob"
+	removesrc:"remove packages belonging to a source package"
+	removesrcs:"remove packages belonging to names source packages"
+	removetrack:"remove a single tracking data"
+	reoverride:"apply override information to already existing packages"
+	repairdescriptions:"readd lost long descriptions from .deb file"
+	reportcruft:"report source packages without binaries and vice versa"
+	rereference:"recreate references"
+	rerunnotifiers:"call notificators as if all packages were just included"
+	restore:"restore a package from a distribution's snapshot"
+	restorefilter:"restore packages matching a filter from a snapshot"
+	restorematched:"restore packages matching a glob from a snapshot"
+	restoresrc:"restore packages belonging to a specific source from a snapshot"
+	retrack:"refresh tracking information"
+	sourcemissing:"list binary packages with no source package"
+	tidytracks:"look for files referened by tracks but no longer needed"
+	translatefilelists:"translate pre-3.0.0 contents.cache.db into new format"
+	translatelegacychecksums:"get rid of obsolete files.db"
+	unreferencesnapshot:"no longer mark files used by an snapshot"
+	unusedsources:"list source packages with no binary packages"
+	update:"update from external source"
+   	)
+hiddencommands=(
+	__dumpuncompressors:"list what external uncompressors are available"
+	__extractcontrol:"extract the control file from a .deb file"
+	__extractfilelist:"extract the filelist from a .deb file"
+	__extractsourcesection:"extract source and priority from a .dsc"
+	__uncompress:"uncompress a file"
+	_addchecksums:"add checksums to database"
+	_addmd5sums:"add checksums to database"
+	_addreference:"mark a filekey needed by an identifier"
+	_addreferences:"mark multiple filekeys needed by an identifier"
+	_detect:"look if the file belonging to a filekey exists and add to the database."
+	_dumpcontents:"output contents of a part of the repository"
+	_fakeemptyfilelist:"create an empty fake filelist cache item for a filekey"
+	_forget:"forget a file specified by filekey."
+	_listchecksums:"print a list of filekeys and their checksums"
+	_listcodenames:"list configured codenames"
+	_listconfidentifiers:"list parts of the repository in the configuration"
+	_listdbidentifiers:"list parts of the repository in the database"
+	_listmd5sums:"print a list of filekeys and their md5 hashes"
+	_removereference:"manuall remove a reference"
+	_removereferences:"remove all references by an identifier"
+    	)
+
+_arguments \
+	'*'{-v,-V,--verbose}'[be more verbose]' \
+	'*--silent[be less verbose]' \
+	'*--delete[Delete files after inclusion]' \
+	'(-b --basedir)'{-b,--basedir}'[Base drectory]:basedir:_files -/' \
+	'--outdir[Directory where pool and dist are in]:out dir:_files -/' \
+	'--confdir[Directory where config files are]:config dir:_files -/' \
+	'--distdir[Directory where index files will be exported to]:dist dir:_files -/' \
+	'--logdir[Directory where log files will be generated]:log dir:_files -/' \
+	'--morguedir[Directory where files removed from the pool are stored]:morgue dir:_files -/' \
+	'--dbdir[Directory where the database is stored]:database dir:_files -/' \
+	'--listdir[Directory where downloaded index files will be stored]:list dir:_files -/' \
+	'--methoddir[Directory to search apt methods in]:method dir:_files -/' \
+	'(-C --component)'{-C,--component}'[Override component]:component:{_reprepro_components}' \
+	'(-A --architecture)'{-A,--architecture}'[Limit to a specific architecture]:architecture:{_reprepro_architectures}' \
+	'(-T --type)'{-T,--type}'[Limit to a specific type]:file type:(dsc deb udeb)' \
+	'(-S --section)'{-S,--section}'[Override section]:section:(admin base comm contrib devel doc editors electronics embedded games gnome graphics hamradio interpreters kde libs libdevel mail math misc net news non-free oldlibs otherosfs perl python science shells sound tex text utils web x11 contrib/admin contrib/base contrib/comm contrib/contrib contrib/devel contrib/doc contrib/editors contrib/electronics contrib/embedded contrib/games contrib/gnome contrib/graphics contrib/hamradio contrib/interpreters contrib/kde contrib/libs contrib/libdevel contrib/mail contrib/math contrib/misc contrib/net contrib/news contrib/non-free contrib/oldlibs contrib/otherosfs contrib/perl contrib/python contrib/science contrib/shells contrib/sound contrib/tex contrib/text contrib/utils contrib/web contrib/x11 non-free/admin non-free/base non-free/comm non-free/contrib non-free/devel non-free/doc non-free/editors non-free/electronics non-free/embedded non-free/games non-free/gnome non-free/graphics non-free/hamradio non-free/interpreters non-free/kde non-free/libs non-free/libdevel non-free/mail non-free/math non-free/misc non-free/net non-free/news non-free/non-free non-free/oldlibs non-free/otherosfs non-free/perl non-free/python non-free/science non-free/shells non-free/sound non-free/tex non-free/text non-free/utils non-free/web non-free/x11)' \
+	'(-P --priority)'{-P,--priority}'[Override priority]:priority:(required important standard optional extra)' \
+	'--export=[]:when:(silent-never never changed lookedat force)' \
+	'*--ignore=[Do ignore errors of some type]:error type:((\
+		ignore\:"ignore unknown ignore tags"\
+		flatandnonflat\:"ignore warnings about flat and non-flat distribution"\
+		forbiddenchar\:"allow more 7bit characters for names and versions"\
+		8bit\:"allow 8 bit characters"\
+		emptyfilenamepart\:"allow strings used to construct filenames to be empty"\
+		spaceonlyline\:"do not warn about lines containing only spaces"\
+		malformedchunk\:"ignore lines without colons"\
+		unknownfield\:"ignore unknown fields"\
+		wrongdistribution\:"put .changes files in distributed they were not made for"\
+		wrongarchitecture\:"do not warn about wrong Architecture fields in downloaded Packages files"\
+		missingfield\:"allow missing fields"\
+		brokenold\:"ignore broken packages in database"\
+		brokenversioncmp\:"ignore versions not parseable"\
+		extension\:"ignore unexpected suffixes of files"\
+		unusedarch\:"allow changes files to list architectures not used"\
+		unusedoption\:"ignore command line options not used by an action"\
+		undefinedtarget\:"allow unspecified package databases"\
+		undefinedtracking\:"allow unspecified tracking databases"\
+		surprisingarch\:"do not protest when a changes file does not list a architecture it has files for"\
+		surprisingbinary\:"do not demand a .changes Binaries header to list all binaries"\
+		wrongsourceversion\:"do not demand coherent source versions in a .changes"\
+		wrongversion\:"do not demand coherent version of source packages in a .changes"\
+		dscinbinnmu\:"do not reject source files in what looks like a binMNU"\
+		brokensignatures\:"ignore corrupted signatures if there is a valid one"\
+		uploaders\:"allow even when forbidden by uploaders file"\
+		missingfile\:"include commands search harder for missing files like .orig.tar.gz"\
+		expiredkey\:"allow signatures with expired keys"\
+		expiredsignature\:"allow expired signatures"\
+		revokedkey\:"allow signatures with revoked keys"\
+		oldfile\:"silence warnings about strange old files in dists"\
+		longkeyid\:"do not warn about keyid in uploaders files gpgme might not accept"\
+		))' \
+	'*--unignore=[Do not ignore errors of type]:error type:(
+		ignore flatandnonflat forbiddenchar 8bit emptyfilenamepart\
+		spaceonlyline malformedchunk unknownfield unusedoption\
+		wrongdistribution missingfield brokenold brokenversioncmp\
+		extension unusedarch surprisingarch surprisingbinary\
+		wrongsourceversion wrongversion brokensignatures\
+		missingfile uploaders undefinedtarget undefinedtracking\
+		expiredkey expiredsignature revokedkey wrongarchitecture)' \
+	'--waitforlock=[Time to wait if database is locked]:count:(0 3600)' \
+	'--spacecheck[Mode for calculating free space before downloading packages]:behavior:(full none)' \
+	'--dbsafetymargin[Safety margin for the partition with the database]:bytes count:' \
+	'--safetymargin[Safety margin per partition]:bytes count:' \
+	'--gunzip[external Program to extract .gz files]:gunzip binary:_files' \
+	'--bunzip2[external Program to extract .bz2 files]:bunzip binary:_files' \
+	'--unlzma[external Program to extract .lzma files]:unlzma binary:_files' \
+	'--unxz[external Program to extract .xz files]:unxz binary:_files' \
+	'--lunzip[external Program to extract .lz files]:lunzip binary:_files' \
+	'--list-format[Format for list output]:listfilter format:' \
+	'--list-skip[Number of packages to skip in list output]:list skip:' \
+	'--list-max[Maximum number of packages in list output]:list max:' \
+	'(--nonothingiserror)--nothingiserror[Return error code when nothing was done]' \
+	'(--listsdownload --nonolistsdownload)--nolistsdownload[Do not download Release nor index files]' \
+	'(--nokeepunneededlists)--keepunneededlists[Do not delete list/ files that are no longer needed]' \
+	'(--nokeepunreferencedfiles)--keepunreferencedfiles[Do not delete files that are no longer used]' \
+	'(--nokeepunusednewfiles)--keepunusednewfiles[Do not delete newly added files that later were found to not be used]' \
+	'(--nokeepdirectories)--keepdirectories[Do not remove directories when they get empty]' \
+	'(--nokeeptemporaries)--keeptemporaries[When exporting fail do not remove temporary files]' \
+	'(--noask-passphrase)--ask-passphrase[Ask for passphrases (insecure)]' \
+  	'(--nonoskipold --skipold)--noskipold[Do not ignore parts where no new index file is available]' \
+	'(--guessgpgtty --nonoguessgpgtty)--noguessgpgtty[Do not set GPG_TTY variable even when unset and stdin is a tty]' \
+	':reprepro command:->commands' \
+	'2::arguments:->first' \
+	'3::arguments:->second' \
+	'4::arguments:->third' \
+	'*::arguments:->argument' && return 0
+
+case "$state" in
+ (commands)
+	if [[ -prefix _* ]] ; then
+		_describe "reprepro command" hiddencommands
+	else
+		_describe "reprepro command" commands
+	fi
+	;;
+
+ (first argument|second argument|third argument|argument)
+	case "$words[1]" in
+	 (export|update|checkupdate|predelete|pull|checkpull|check|reoverride|repairdescriptions|forcerepairdescriptions|rereference|dumptracks|retrack|removealltracks|tidytracks|dumppull|dumpupdate|rerunnotifiers|unusedsources|sourcemissing|reportcruft)
+		_reprepro_codenames
+		;;
+	 (checkpool)
+		if [[ "$state" = "first argument" ]] ; then
+      			_wanted -V 'modifiers' expl 'modifier' compadd fast
+		fi
+		;;
+
+	 (cleanlists|clearvanished|dumpreferences|dumpunreferened|deleteunreferenced|_listmd5sums|_listchecksums|_addmd5sums|_addchecksums|__dumpuncompressors|transatelegacychecksums|_listcodenames)
+		;;
+	 (_dumpcontents|_removereferences)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_identifiers
+		fi
+		;;
+	  (_removereference)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_identifiers
+		elif [[ "$state" = "second argument" ]] ; then
+			_reprepro_filekeys
+		fi
+		;;
+	 (list|listfilter|listmatched)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		fi
+		;;
+	 (remove)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		else
+			_reprepro_package_names "$words[2]"
+		fi
+		;;
+	 # removesrcs might be improveable...
+	 (removesrc|removesrcs)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		else
+			_reprepro_source_package_names "$words[2]"
+		fi
+		;;
+	 (removefilter|removematched)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		fi
+		;;
+	 (gensnapshot|unreferencesnapshot)
+		# TODO: for unreferencesnapshot get instead a list of existing ones
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		elif [[ "$state" = "second argument" ]] ; then
+      			_wanted -V 'snapshot names' expl 'snapshot name' compadd $(date -I)
+		fi
+		;;
+	 (removetrack)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		elif [[ "$state" = "second argument" ]] ; then
+			_reprepro_source_package_names "$words[2]"
+		elif [[ "$state" = "third argument" ]] ; then
+#and version...
+		fi
+		;;
+	 (includedeb)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		elif [[ "$state" = "second argument" ]] ; then
+			_files -g "*.deb"
+		fi
+		;;
+	 (includedsc)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		elif [[ "$state" = "second argument" ]] ; then
+			_files -g "*.dsc"
+		fi
+		;;
+	 (__extractsourcesection)
+		if [[ "$state" = "first argument" ]] ; then
+			_files -g "*.dsc"
+		fi
+		;;
+	 (copy|copysrc|copyfilter|copymatched)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		elif [[ "$state" = "second argument" ]] ; then
+			_reprepro_codenames
+		fi
+		;;
+	 (restore|restoresrc|restorefilter|restorematched)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+# TODO:
+#		elif [[ "$state" = "second argument" ]] ; then
+#			_reprepro_codenames
+		fi
+		;;
+	 (include)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		elif [[ "$state" = "second argument" ]] ; then
+			_files -g "*.changes"
+		fi
+		;;
+	 (__extractfilelist|__extractcontrol)
+		_files -g "*.deb"
+		;;
+	 (processincoming)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_incomings
+		elif [[ "$state" = "second argument" ]] ; then
+			_reprepro_incomingdir "$words[2]" \
+			&& _files -g "*.changes" -W list \
+			|| _files -g "*.changes"
+		fi
+		;;
+	  (_detect|_forget)
+		_reprepro_filekeys
+		;;
+	  (_fakeemptyfilelist)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_filekeys
+		fi
+		;;
+	  (_addreference)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_filekeys
+		elif [[ "$state" = "second argument" ]] ; then
+			_reprepro_identifiers
+		fi
+		;;
+	  (_addreferences)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_identifiers
+		else
+			_reprepro_filekeys
+		fi
+		;;
+	  (__uncompress)
+		if [[ "$state" = "first argument" ]] ; then
+			uncompressions=(.gz .bz2 .lzma .xz .lz)
+		      	_wanted -V 'uncompressions' expl 'uncompression' compadd -a uncompressions
+		elif [[ "$state" = "second argument" ]] ; then
+			_files
+		elif [[ "$state" = "third argument" ]] ; then
+			_files
+		fi
+	  	;;
+	  (build-needing)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		elif [[ "$state" = "second argument" ]] ; then
+			_reprepro_architectures
+##TODO		elif [[ "$state" = "third argument" ]] ; then
+##TODO			_reprepro_glob
+		fi
+	  	;;
+	  (flood)
+		if [[ "$state" = "first argument" ]] ; then
+			_reprepro_codenames
+		elif [[ "$state" = "second argument" ]] ; then
+			_reprepro_architectures
+		fi
+	  	;;
+	 (*)
+    		_files
+	   	;;
+	esac
+	;;
+esac
diff --git a/docs/rredtool.1 b/docs/rredtool.1
new file mode 100644
index 0000000..f217128
--- /dev/null
+++ b/docs/rredtool.1
@@ -0,0 +1,90 @@
+.TH RREDTOOL 1 "2009-11-12" "reprepro" REPREPRO
+.SH NAME
+rredtool \- merge or apply a very restricted subset of ed patches
+.SH SYNOPSIS
+.B rredtool \-\-help
+
+.B rredtool
+[
+\fIoptions\fP
+]
+.B \-\-merge
+.I patches...
+
+.B rredtool
+[
+\fIoptions\fP
+]
+.B \-\-patch
+.IR file-to-patch " " patches...
+
+.B rredtool
+.IR directory " " newfile " " oldfile " " mode
+.SH DESCRIPTION
+rredtool is a tool to handle a subset of ed patches in a safe way.
+It is especially targeted at ed patches as used in Packages.diff
+and Sources.diff.
+Is also has a mode supposed to be called from reprepro as Index Hook
+to generate and update a \fBPackages.diff/Index\fP file.
+.SH "MODI"
+One of the following has to be given, so that rredtool know that to
+do.
+.TP
+.B \-\-version
+Print the version of this tool
+(or rather the version of reprepro which it is coming with).
+.TP
+.B \-\-help
+Print a short overview of the modi.
+.TP
+.B \-\-patch
+The first argument of rredtool is the file to patch,
+the other arguments are ed patches to apply on this one.
+.TP
+.B \-\-merge
+The arguments are treated as ed patches, which are merged into
+a single one.
+.TP
+.BR \-\-reprepro\-hook " (or no other mode flag)
+Act as reprepro index hook to manage a \fBPackages.diff/index\fP file.
+That means it expects to get exactly 4 arguments
+and writes the names of files to place into filedescriptor 3.
+
+If neither \-\-patch nor \-\-merge is given,
+this mode is used, so you can just put
+
+ \fBDebIndices: Packages Release . .gz /usr/bin/rredtool\fP
+
+into reprepro's \fBconf/distributions\fP file to have a Packages.diff
+directory generated.
+(Note that you have to generate an uncompressed file (the single dot).
+You will need to have patch, gzip and gunzip available in your path.)
+
+.SH "OPTIONS"
+.TP
+.B \-\-debug
+Print intermediate results or other details that might be interesting
+when trying to track down bugs in rredtool but not intresting otherwise.
+.TP
+.B \-\-max\-patch\-count=\fIcount\fP
+When generating a \fIPackages\fP\fB.diff/Index\fP file,
+put at most \fIcount\fP patches in it
+(not counting possible apt workaround patches).
+.TP
+.BR \-o | \-\-output
+Not yet implemented.
+.SH "ENVIRONMENT"
+.TP
+.BR TMPDIR ", " TEMPDIR
+temporary files are created in $\fITEMPDIR\fP if set,
+otherwise in $\fITMPDIR\fP if set, otherwise in \fB/tmp/\fP.
+.SH "REPORTING BUGS"
+Report bugs or wishlist requests the Debian BTS
+(e.g. by using \fBreportbug reperepro\fP)
+or directly to <brlink@debian.org>.
+.br
+.SH COPYRIGHT
+Copyright \(co 2009 Bernhard R. Link
+.br
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
diff --git a/docs/sftp.py b/docs/sftp.py
new file mode 100755
index 0000000..072dcf1
--- /dev/null
+++ b/docs/sftp.py
@@ -0,0 +1,886 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright 2013 Bernhard R. Link <brlink@debian.org>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# SOFTWARE IN THE PUBLIC INTEREST, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+#
+
+"""
+This is a sftp module to be used in reprepro's outsftphook example.
+Like the sftp binary it calls ssh to do the connection in a secure
+way and then speaks the sftp subsystem language over that connection.
+"""
+
+
+import os, subprocess, select
+
+class EnumInternException(Exception):
+	def __init__(self, v):
+		super().__init__(v)
+		self.value = v
+
+class _EnumType(type):
+	"""
+	Metaclass for Enum. Allows one to set values as parameters.
+	"""
+	def __new__(cls, name, bases, namespace, **values):
+		return type.__new__(cls, name, bases, namespace)
+	def __init__(self, name, bases, namespace, **values):
+		super().__init__(name, bases, namespace)
+		if bases:
+			self._byvalue = dict()
+			self._byname = dict()
+		if values:
+			for k,v in values.items():
+				self._create_instance(k, v)
+
+class Enum(metaclass=_EnumType):
+	"""
+	An enum is a class with a fixed set of instances.
+	Each instance has a name and a integer value.
+	If a new new instance is to be created, one of those
+	fix instances is returned instead.
+	"""
+	@classmethod
+	def _create_instance(cls, name, value):
+		# create a new instance:
+		result = super(Enum, cls).__new__(cls)
+		if isinstance(name, str):
+			result.name = name
+		else:
+			result.name = name[0]
+		result.__name__ = result.name
+		result.value = value
+		cls._byvalue[value] = result
+		if isinstance(name, str):
+			cls._byname[name] = result
+			setattr(cls, name, result)
+		else:
+			for n in name:
+				cls._byname[n] = result
+				setattr(cls, n, result)
+		return result
+	def __new__(cls, l):
+		try:
+			if isinstance(l, cls):
+				return l
+			elif isinstance(l, int):
+				return cls._byvalue[l]
+			elif isinstance(l, str):
+				return cls._byname[l]
+			else:
+				raise EnumInternException(repr(l))
+		except KeyError:
+			raise EnumInternException(repr(l))
+	def __init__(self, l):
+		pass
+	def __int__(self):
+		return self.value
+	def __str__(self):
+		return self.name
+	def __repr__(self):
+		return "%s.%s.%s" % (type(self).__module__, type(self).__name__, self.name)
+
+class _BitmaskType(type):
+	"""
+	Metaclass for Bitmask types. Allows one to set values as parameters.
+	"""
+	@classmethod
+	def __prepare__(cls, name, bases, **values):
+		namespace = type.__prepare__(cls, name, bases)
+		if values:
+			flagcls = _EnumType.__new__(type, "flags of " + name, (Enum,), dict())
+			flagcls._byvalue = dict()
+			flagcls._byname = dict()
+			namespace["_Values"] = flagcls
+			for (k,v) in values.items():
+				if isinstance(v, int):
+					e = flagcls._create_instance(k, v)
+					e.mask = v
+				else:
+					e = flagcls._create_instance(k, v[0])
+					e.mask = v[1]
+				namespace[k] = e
+		return namespace
+	def __new__(cls, name, bases, namespace, **values):
+		return type.__new__(cls, name, bases, namespace)
+	def __init__(self, name, bases, namespace, **values):
+		return super().__init__(name, bases, namespace)
+
+class Bitmask(set, metaclass=_BitmaskType):
+	def __init__(self, l):
+		if isinstance(l, int):
+			super().__init__([i
+				for (k,i)
+				in self._Values._byvalue.items()
+				if (l & i.mask) == k])
+			if l != int(self):
+				raise Exception("Unrepresentable number %d (got parsed as %s = %d)" %
+				                (l, str(self), int(self)))
+		elif isinstance(l, str):
+			try:
+				super().__init__([self._Values(i)
+					for i
+					in l.split("|")])
+				# test for inconsistencies:
+				type(self)(int(self))
+			except EnumInternException as e:
+				raise Exception("Invalid value '%s' in value '%s' for %s" %
+				                (e.value, str(l), type(self).__name__))
+		else:
+			try:
+				super().__init__([self._Values(i) for i in l])
+				# test for inconsistencies:
+				type(self)(int(self))
+			except EnumInternException as e:
+				raise Exception("Invalid value '%s' in value '%s' for %s" %
+				                (e.value, str(l), type(self).__name__))
+	def __int__(self):
+		v = 0
+		for i in self:
+			v = v | int(i)
+		return v
+	def __str__(self):
+		return "|".join([str(i) for i in self])
+
+class SSH_FILEXFER(Bitmask, ATTR_SIZE = 0x00000001,
+                            ATTR_UIDGID = 0x00000002,
+                            ATTR_PERMISSIONS = 0x00000004,
+                            ATTR_ACMODTIME = 0x00000008,
+                            ATTR_EXTENDED = 0x80000000):
+	pass
+
+def ssh_data(b):
+	return len(b).to_bytes(4, byteorder='big') + b
+def ssh_string(s):
+	b = str(s).encode(encoding='utf-8')
+	return len(b).to_bytes(4, byteorder='big') + b
+def ssh_u8(i):
+	return int(i).to_bytes(1, byteorder='big')
+def ssh_u32(i):
+	return int(i).to_bytes(4, byteorder='big')
+def ssh_u64(i):
+	return int(i).to_bytes(8, byteorder='big')
+def ssh_attrs(**opts):
+	flags = SSH_FILEXFER(0)
+	extended = []
+	for key in opts:
+		if key == 'size':
+			flags.add(SSH_FILEXFER.ATTR_SIZE)
+		elif key == 'uid' or key == 'gid':
+			flags.add(SSH_FILEXFER.ATTR_UIDGID)
+		elif key == 'permissions':
+			flags.add(SSH_FILEXFER.ATTR_PERMISSIONS)
+		elif key == 'atime' or key == 'mtime':
+			flags.add(SSH_FILEXFER.ATTR_ACMODTIME)
+		elif '@' in key:
+			extended.add(opts[key])
+		else:
+			raise SftpException("Unsupported file attribute type %s" % repr(key))
+	if extended:
+		flags.add(SSH_FILEXFER.ATTR_EXTENDED)
+	b = ssh_u32(int(flags))
+	if SSH_FILEXFER.ATTR_SIZE in flags:
+		b = b + ssh_u64(opts['size'])
+	if SSH_FILEXFER.ATTR_UIDGID in flags:
+		b = b + ssh_u32(opts['uid'])
+		b = b + ssh_u32(opts['gid'])
+	if SSH_FILEXFER.ATTR_PERMISSIONS in flags:
+		b = b + ssh_u32(opts['permissions'])
+	if SSH_FILEXFER.ATTR_ACMODTIME in flags:
+		b = b + ssh_u32(opts['atime'])
+		b = b + ssh_u32(opts['mtime'])
+	if SSH_FILEXFER.ATTR_EXTENDED in flags:
+		b = b + ssh_u32(len(extended))
+		for key in extended:
+			b = b + ssh_string(key)
+			b = b + ssh_data(opts[key])
+	return b
+
+def ssh_getu32(m):
+	v = int.from_bytes(m[:4], byteorder='big')
+	return v, m[4:]
+def ssh_getstring(m):
+	l = int.from_bytes(m[:4], byteorder='big')
+	return (m[4:4+l].decode(encoding='utf-8'), m[4+l:])
+def ssh_getdata(m):
+	l = int.from_bytes(m[:4], byteorder='big')
+	return (m[4:4+l], m[4+l:])
+def ssh_getattrs(m):
+	attrs = dict()
+	flags, m = ssh_getu32(m)
+	flags = SSH_FILEXFER(flags)
+	if SSH_FILEXFER.ATTR_SIZE in flags:
+		attrs['size'], m = ssh_getu64(m)
+	if SSH_FILEXFER.ATTR_UIDGID in flags:
+		attrs['uid'], m = ssh_getu32(m)
+		attrs['gid'], m = ssh_getu32(m)
+	if SSH_FILEXFER.ATTR_PERMISSIONS in flags:
+		attrs['permissions'], m = ssh_getu32(m)
+	if SSH_FILEXFER.ATTR_ACMODTIME in flags:
+		attrs['atime'], m = ssh_getu32(m)
+		attrs['mtime'], m = ssh_getu32(m)
+	if SSH_FILEXFER.ATTR_EXTENDED in flags:
+		count, m = ssh_getu32(m)
+		while count > 0:
+			count -= 1
+			key, m = ssh_getstring(m)
+			attrs[key], m = ssh_getdata(m)
+	return (attrs, m)
+
+class SftpException(Exception):
+	pass
+
+class SftpStrangeException(SftpException):
+	"""Unparseable stuff from server"""
+	pass
+
+class SftpUnexpectedAnswerException(SftpStrangeException):
+	def __init__(self, answer, request):
+		super().__init__("Unexpected answer '%s' to request '%s'" %
+		                 (str(answer), str(request)))
+
+class SftpTooManyRequestsException(SftpException):
+	def __init__(self):
+		super().__init__("Too many concurrent requests (out of request ids)")
+
+class SftpInternalException(SftpException):
+	"""a programming or programmer mistake"""
+	pass
+
+class Request:
+	def __init__(self, **args):
+		self.data = args
+		pass
+	def __int__(self):
+		return self.requestid
+	def __str__(self):
+		return type(self).__name__ + "(" + " ".join(["%s=%s" % (key, repr(val))
+			for (key, val) in self.data.items()]) + ")"
+	@classmethod
+	def bin(cls, conn, req, *payload):
+		s = 5
+		for b in payload:
+			s = s + len(b)
+		# print("Sending packet of type %d and size %d" % (cls.typeid, s))
+		r = ssh_u32(s) + ssh_u8(cls.typeid) + ssh_u32(int(req))
+		for b in payload:
+			r = r + b
+		return r
+	def send(self, conn):
+		conn.requests[int(self)] = self
+		self.conn = conn
+		conn.send(self.bin(conn, self, **self.data))
+	def done(self):
+		if self.requestid != None:
+			del self.conn.requests[self.requestid]
+			self.requestid = None
+
+class NameRequest(Request):
+	"""Base class for requests with a single name as argument"""
+	def __init__(self, name):
+		super().__init__(name = name)
+	@classmethod
+	def bin(cls, conn, req, name):
+		return super().bin(conn, req, ssh_string(name))
+
+class HandleRequest(Request):
+	"""Base class for requests with a single name as argument"""
+	def __init__(self, handle):
+		super().__init__(handle = handle)
+	@classmethod
+	def bin(cls, conn, req, handle):
+		return super().bin(conn, req, ssh_data(handle))
+
+class NameAttrRequest(Request):
+	"""Base class for requests with a name and attributes as argument"""
+	def __init__(self, name, **attrs):
+		super().__init__(name = name, attrs = attrs)
+	@classmethod
+	def bin(cls, conn, req, name, attrs):
+		return super().bin(conn, req,
+			ssh_string(name),
+			ssh_attrs(**attrs))
+
+class INIT(Request):
+	typeid = 1
+	@classmethod
+	def bin(cls, conn, version):
+		# INIT has no request id but instead sends a protocol version
+		return super().bin(conn, int(version))
+
+class SSH_FXF(Bitmask, READ =    0x00000001,
+                       WRITE =   0x00000002,
+                       APPEND =  0x00000004,
+                       CREAT =   0x00000008,
+                       TRUNC =   0x00000010,
+                       EXCL =    0x00000020):
+	pass
+
+class OPEN(Request):
+	typeid = 3
+	def __init__(self, name, flags, **attributes):
+		super().__init__(name = name, flags = SSH_FXF(flags), attrs = attributes)
+	@classmethod
+	def bin(cls, conn, req, name, flags, attrs):
+		return super().bin(conn, req,
+			ssh_string(name),
+			ssh_u32(flags),
+			ssh_attrs(**attrs))
+
+class CLOSE(HandleRequest):
+	typeid = 4
+
+class READ(Request):
+	typeid = 5
+	def __init__(self, handle, start, length):
+		super().__init__(handle = handle, start = start, length = int(length))
+	@classmethod
+	def bin(cls, conn, req, handle, start, length):
+		return super().bin(conn, req, ssh_data(handle), ssh_u64(start), ssh_u32(length))
+
+class WRITE(Request):
+	typeid = 6
+	def __init__(self, handle, start, data):
+		super().__init__(handle = handle, start = start, data = bytes(data))
+	@classmethod
+	def bin(cls, conn, req, handle, start, data):
+		return super().bin(conn, req, ssh_data(handle), ssh_u64(start), ssh_data(data))
+
+class LSTAT(NameRequest):
+	typeid = 7
+
+class FSTAT(HandleRequest):
+	typeid = 8
+
+class SETSTAT(NameAttrRequest):
+	typeid = 9
+
+class FSETSTAT(Request):
+	typeid = 10
+	def __init__(self, handle, **attrs):
+		super().__init__(handle = handle, attrs = attrs)
+	@classmethod
+	def bin(cls, conn, req, name, attrs):
+		return super().bin(conn, req,
+			ssh_data(handle),
+			ssh_attrs(**attrs))
+
+class OPENDIR(NameRequest):
+	typeid = 11
+
+class READDIR(HandleRequest):
+	typeid = 12
+
+class REMOVE(NameRequest):
+	typeid = 13
+
+class MKDIR(NameAttrRequest):
+	typeid = 14
+
+class RMDIR(NameRequest):
+	typeid = 15
+
+class REALPATH(NameRequest):
+	typeid = 16
+
+class STAT(NameRequest):
+	typeid = 17
+
+class SSH_FXF_RENAME(Bitmask, OVERWRITE = 0x00000001,
+                              ATOMIC    = 0x00000002,
+                              NATIVE    = 0x00000004):
+	pass
+
+class RENAME(Request):
+	typeid = 18
+	def __init__(self, src, dst, flags):
+		if not isinstance(flags, SSH_FXF_RENAME):
+			flags = SSH_FXF_RENAME(flags)
+		super().__init__(src = src, dst = dst, flags = flags)
+	@classmethod
+	def bin(cls, conn, req, src, dst, flags):
+		# TODO: Version 3 has no flags (though they do not seem to harm)
+		return super().bin(conn, req, ssh_string(src),
+			ssh_string(dst), ssh_u32(flags))
+
+class READLINK(NameRequest):
+	typeid = 19
+
+class SYMLINK(Request):
+	typeid = 20
+	def __init__(self, name, dest):
+		super().__init__(name = name, dest = dest)
+	@classmethod
+	def bin(cls, conn, req, name, dest):
+		# TODO: this is openssh and not the standard (they differ)
+		return super().bin(conn, req, ssh_string(dest),
+			ssh_string(name))
+
+class EXTENDED(Request):
+	typeid = 200
+	# TODO?
+
+################ Answers ################
+
+class Answer:
+	def __int__(self):
+		return self.id
+	# Fallbacks, can be removed once all are done:
+	def __init__(self, m):
+		self.data =  m
+	def __str__(self):
+		return "%s %s" % (type(self).__name__, repr(self.data))
+
+class VERSION(Answer):
+	id = 2
+
+class SSH_FX(Enum,
+	OK =                   0,
+	EOF =                  1,
+	NO_SUCH_FILE =         2,
+	PERMISSION_DENIED =    3,
+	FAILURE =              4,
+	BAD_MESSAGE =          5,
+	NO_CONNECTION =        6,
+	CONNECTION_LOST =      7,
+	OP_UNSUPPORTED =       8,
+	INVALID_HANDLE =       9,
+	NO_SUCH_PATH =        10,
+	FILE_ALREADY_EXISTS = 11,
+	WRITE_PROTECT =       12,
+	NO_MEDIA =            13
+):
+	pass
+
+class STATUS(Answer):
+	id = 101
+	def __init__(self, m):
+		s, m = ssh_getu32(m)
+		self.status = SSH_FX(s)
+		self.message, m = ssh_getstring(m)
+		self.lang, m = ssh_getstring(m)
+	def __str__(self):
+		return "STATUS %s: %s[%s]" % (
+			str(self.status),
+			self.message,
+			self.lang)
+
+class HANDLE(Answer):
+	id = 102
+	def __init__(self, m):
+		self.handle, m = ssh_getdata(m)
+	def __str__(self):
+		return "HANDLE %s" % repr(self.handle)
+
+class DATA(Answer):
+	id = 103
+	def __init__(self, m):
+		self.data, m = ssh_getdata(m)
+	def __str__(self):
+		return "DATA %s" % repr(self.data)
+
+class NAME(Answer):
+	id = 104
+	def __init__(self, m):
+		count, m = ssh_getu32(m)
+		self.names = []
+		while count > 0:
+			count -= 1
+			filename, m = ssh_getstring(m)
+			longname, m = ssh_getstring(m)
+			attrs, m = ssh_getattrs(m)
+			self.append((filename, longname, attrs))
+
+	def __str__(self):
+		return "NAME" + "".join(("%s:%s:%s" % (repr(fn), repr(ln), str(attrs))
+		                         for (fn,ln,attrs) in self.names))
+
+class ATTRS(Answer):
+	id = 105
+	def __init__(self, m):
+		self.attrs, m = ssh_getattrs(m)
+
+	def __str__(self):
+		return "ATTRS %s" % str(self.attrs)
+
+class EXTENDED_REPLY(Answer):
+	id = 201
+	# TODO?
+
+################ Tasks ################
+
+class Task:
+	"""A task is everything that sends requests,
+	   receives answers, uses collectors or is
+	   awakened by collectors.
+	"""
+	def start(self, connection):
+		self.connection = connection
+	def enqueueRequest(self, request):
+		request.task = self
+		self.connection.enqueueRequest(request)
+	def sftpanswer(self, a):
+		raise SftpInternalException("unimplemented sftpanswer called")
+	def writeready(self):
+		raise SftpInternalException("unimplemented writeready called")
+	def parentinfo(self, command):
+		raise SftpInternalException("unimplemented parentinfo called")
+
+class TaskFromGenerator(Task):
+	"""A wrapper around a python corotine (generator)"""
+	def __init__(self, gen):
+		super().__init__()
+		self.gen = gen
+	def start(self, connection):
+		super().start(connection)
+		self.enqueue(next(self.gen))
+	def parentinfo(self, command):
+		self.enqueue(self.gen.send(command))
+	def sftpanswer(self, answer):
+		self.enqueue(self.gen.send(answer))
+	def writeready(self):
+		self.enqueue(self.gen.send('canwrite'))
+	def __str__(self):
+		return "Task(by %s)" % self.gen
+	def enqueue(self, joblist):
+		if len(joblist) == 0:
+			return
+		for job in joblist:
+			if isinstance(job, Request):
+				self.enqueueRequest(job)
+			elif job == 'wantwrite':
+				self.connection.enqueueTask(self)
+			elif (isinstance(job, tuple) and len(job) == 2 and
+			     isinstance(job[0], Task)):
+				if DebugMode.LOCKS in self.debug:
+					print("parentinfo", job,
+					       **self.debugopts)
+				job[0].parentinfo(job[1])
+			elif (isinstance(job, tuple) and len(job) >= 2 and
+			     issubclass(job[1], Collector)):
+				self.connection.collect(self, *job)
+			elif isinstance(job, Task):
+				self.connection.start(job)
+			else:
+				raise SftpInternalException("strange result from generator")
+
+
+class Collector(Task):
+	""" Collectors collect information from Tasks and send them
+	    triggers at requested events (parent directory created,
+	    another file can be processed, ...)
+	"""
+	def childinfo(self, who, command):
+		raise SftpInternalException("unimplemented parentinfo called")
+
+class DebugMode(Bitmask, **{
+	'COOKED_IN':    1,
+	'COOKED_OUT':   2,
+	'RAW_IN_STAT':  4,
+	'RAW_OUT_STAT': 8,
+	'RAW_IN':      16,
+	'RAW_OUT':     32,
+	'ENQUEUE':     64,
+	'LOCKS':      128,
+}):
+	pass
+
+class Connection:
+	def next_request_id(self):
+		i = self.requestid_try_next
+		while i in self.requests:
+			i = (i + 1) % 0x100000000
+			if i == self.requestid_try_next:
+				raise SftpTooManyRequestsException()
+		self.requestid_try_next = (i + 1) % 0x100000000
+		return i
+	def __init__(self, servername, sshcommand="ssh", username=None, ssh_options=[], debug=0, debugopts=dict(), maxopenfiles=10):
+		self.debug = DebugMode(debug)
+		self.debugopts = debugopts
+		self.requests = dict()
+		self.collectors = dict()
+		self.queue = list()
+		self.wantwrite = list()
+		self.requestid_try_next = 17
+		self.semaphores = {'openfile': maxopenfiles}
+
+		commandline = [sshcommand]
+		if ssh_options:
+			commandline.extend(ssh_options)
+		# those defaults are after the user-supplied ones so they can be overridden.
+		# (earlier ones win with ssh).
+		commandline.extend(["-oProtocol 2", # "-oLogLevel DEBUG",
+		                    "-oForwardX11 no", "-oForwardAgent no",
+		                    "-oPermitLocalCommand no",
+		                    "-oClearAllForwardings yes"])
+		if username:
+			commandline.extend(["-l", username])
+		commandline.extend(["-s", "--", servername, "sftp"])
+		self.connection = subprocess.Popen(commandline,
+		                                   close_fds = True,
+		                                   stdin = subprocess.PIPE,
+		                                   stdout = subprocess.PIPE,
+		                                   bufsize = 0)
+		self.poll = select.poll()
+		self.poll.register(self.connection.stdout, select.POLLIN)
+		self.inbuffer = bytes()
+		self.send(INIT.bin(self, 3))
+		t,b = self.getpacket()
+		if t != VERSION.id:
+			raise SftpUnexpectedAnswerException(b, "INIT")
+		# TODO: parse answer data (including available extensions)
+	def close(self):
+		self.connection.send_signal(15)
+	def getmoreinput(self, minlen):
+		while len(self.inbuffer) < minlen:
+			o = self.connection.stdout.read(minlen - len(self.inbuffer))
+			if o == None:
+				continue
+			if len(o) == 0:
+				raise SftpStrangeException("unexpected EOF")
+			self.inbuffer = self.inbuffer + o
+	def getpacket(self):
+		self.getmoreinput(5)
+		s = int.from_bytes(self.inbuffer[:4], byteorder='big')
+		if s < 1:
+			raise SftpStrangeException("Strange size field in Paket from server!")
+		t = self.inbuffer[4]
+		if DebugMode.RAW_IN_STAT in self.debug:
+			print("receiving packet of length %d and type %d " %
+			      (s, t), **self.debugopts)
+		s = s - 1
+		self.inbuffer = self.inbuffer[5:]
+		self.getmoreinput(s)
+		d = self.inbuffer[:s]
+		self.inbuffer = self.inbuffer[s:]
+		if DebugMode.RAW_IN in self.debug:
+			print("received packet(type %d):" % t, repr(d),
+			      **self.debugopts)
+		return (t, d)
+	def send(self, b):
+		if not isinstance(b, bytes):
+			raise SftpInternalException("send not given byte sequence")
+		if DebugMode.RAW_OUT_STAT in self.debug:
+			print("sending packet of %d bytes" % len(b),
+			      **self.debugopts)
+		if DebugMode.RAW_OUT in self.debug:
+			print("sending packet:", repr(b),
+			      **self.debugopts)
+		self.connection.stdin.write(b)
+	def enqueueRequest(self, job):
+		if DebugMode.ENQUEUE in self.debug:
+			print("enqueue", job,
+			       **self.debugopts)
+		if len(self.queue) == 0 and len(self.wantwrite) == 0:
+			self.poll.register(self.connection.stdin,
+					   select.POLLOUT)
+		job.requestid = self.next_request_id()
+		self.queue.append(job)
+	def enqueueTask(self, task):
+		if DebugMode.ENQUEUE in self.debug:
+			print("enqueue", task, **self.debugopts)
+		if len(self.queue) == 0 and len(self.wantwrite) == 0:
+			self.poll.register(self.connection.stdin,
+					   select.POLLOUT)
+		self.wantwrite.append(task)
+	def collect(self, who, command, collectortype, *collectorargs):
+		if DebugMode.LOCKS in self.debug:
+			print("collector", command, collectortype.__name__,
+				*collectorargs, **self.debugopts)
+		"""Tell the (possibly to be generated) """
+		collectorid = (collectortype, collectorargs)
+		if not collectorid in self.collectors:
+			l = collectortype(*collectorargs)
+			self.collectors[collectorid] = l
+			l.start(self)
+		else:
+			l = self.collectors[collectorid]
+		l.childinfo(who, command)
+	def start(self, task):
+		task.start(self)
+	def dispatchanswer(self, answer):
+		task = answer.forr.task
+		try:
+			task.sftpanswer(answer)
+		except StopIteration:
+			orphanreqs = [ r
+				for r in self.requests.values()
+				if r.task == task ]
+			for r in orphanreqs:
+				r.done()
+	def readdata(self):
+		t,m = self.getpacket()
+		for answer in Answer.__subclasses__():
+			if t == answer.id:
+				break
+		else:
+			raise SftpUnexpectedAnswerException("Unknown answer type %d" % t, "")
+		id, m = ssh_getu32(m)
+		a = answer(m)
+		if DebugMode.COOKED_IN in self.debug:
+			print("got answer for request %d: %s" %
+			      (id, str(a)), **self.debugopts)
+		if not id in self.requests:
+			raise SftpUnexpectedAnswerException(a, "unknown-id-%d" % id)
+		else:
+			a.forr = self.requests[id]
+			self.dispatchanswer(a)
+	def senddata(self):
+		if len(self.queue) == 0:
+			while len(self.wantwrite) > 0:
+				w = self.wantwrite.pop(0)
+				if len(self.wantwrite) == 0 and len(self.queue) == 0:
+					self.poll.unregister(self.connection.stdin)
+				w.writeready()
+		if len(self.queue) > 0:
+			request = self.queue.pop(0)
+			if len(self.queue) == 0 and len(self.wantwrite) == 0:
+				self.poll.unregister(self.connection.stdin)
+			if DebugMode.COOKED_OUT in self.debug:
+				print("sending request %d: %s" %
+				      (request.requestid, str(request)),
+				      **self.debugopts)
+			request.send(self)
+	def dispatch(self):
+		while self.requests or self.queue:
+			for (fd, event) in self.poll.poll():
+				if event == select.POLLIN:
+					self.readdata()
+				elif event == select.POLLHUP:
+					raise SftpStrangeException(
+					      "Server disconnected unexpectedly"
+					      " or ssh client process terminated")
+				elif event == select.POLLOUT:
+					self.senddata()
+				else:
+					raise SftpException("Unexpected event %d from poll" % event)
+
+class Dirlock(Collector):
+	def __init__(self, name):
+		super().__init__()
+		self.name = name
+		self.dirname = os.path.dirname(name)
+		self.queue = []
+	def start(self, connection):
+		super().start(connection)
+		if self.dirname and (self.name != self.dirname):
+			self.mode = "wait-for-parent"
+			self.connection.collect(self, 'waitingfor',
+			                        Dirlock, self.dirname)
+		else:
+			self.tellparent = False
+			self.mode = "wait-for-client"
+			self.isnew = False
+	def sftpanswer(self, a):
+		assert(self.mode == "creating")
+		if not isinstance(a, STATUS):
+			raise SftpUnexpectedAnswer(a, a.forr)
+		# Only one answer is expected:
+		a.forr.done()
+		if a.status == SSH_FX.OK:
+			self.mode = "exists"
+			self.isnew = True
+			self.releaseallqueued()
+		elif self.tellparent and a.status == SSH_FX.NO_SUCH_FILE:
+			self.mode = "wait-for-parent"
+			self.connection.collect(self, 'missing',
+			                        Dirlock, self.dirname)
+		else:
+			raise SftpException("Cannot create directory %s: %s" % (self.name, a))
+	def parentinfo(self, command):
+		assert(self.mode == "wait-for-parent")
+		if command == "createnew":
+			self.tellparent = False
+			self.isnew = True
+			self.createdir()
+			return
+		if command != "tryandtell" and command != "ready":
+			raise SftpInternalException(
+			      "Unexpected parent info %s" %
+			      command)
+		self.tellparent = command == "tryandtell"
+		if len(self.queue) > 0:
+			self.mode = "testing"
+			self.queue.pop(0).parentinfo("tryandtell")
+		else:
+			self.mode = "wait-for-client"
+	def childinfo(self, who, command):
+		if command == "waitingfor":
+			if self.mode == "exists":
+				if self.isnew:
+					who.parentinfo("createnew")
+				else:
+					who.parentinfo("ready")
+			elif self.mode == "wait-for-client":
+				self.mode = "testing"
+				who.parentinfo("tryandtell")
+			else:
+				self.queue.append(who)
+		elif command == "found":
+			assert(self.mode == "testing")
+			self.mode = "exists"
+			self.isnew = False
+			self.releaseallqueued()
+		elif command == "missing":
+			self.queue.append(who)
+			self.mode = "creating"
+			self.createdir()
+		else:
+			raise SftpInternalException(
+			      "Unexpected child information: %s" %
+			      command)
+	def createdir(self):
+		self.mode = "creating"
+		self.enqueueRequest(MKDIR(self.name))
+	def releaseallqueued(self):
+		if self.tellparent:
+			self.connection.collect(self, 'found',
+			                        Dirlock, self.dirname)
+			self.tellparent = False
+		if self.isnew:
+			command = "createnew"
+		else:
+			command = "ready"
+		# This assumes out mode cannot change any more:
+		while self.queue:
+			self.queue.pop(0).parentinfo(command)
+
+class Semaphore(Collector):
+	def __init__(self, name):
+		super().__init__()
+		self.name = name
+		self.queue = []
+		self.allowed = 10
+	def start(self, connection):
+		self.allowed = connection.semaphores[self.name]
+	def childinfo(self, who, command):
+		if command == "lock":
+			if self.allowed > 0:
+				self.allowed -= 1
+				who.parentinfo("unlock")
+			else:
+				self.queue.append(who)
+		elif command == "release":
+			if self.allowed == 0 and self.queue:
+				self.queue.pop(0).parentinfo("unlock")
+			else:
+				self.allowed += 1
+		else:
+			raise SftpInternalException("Semaphore.childinfo called with invalid command")
diff --git a/docs/short-howto b/docs/short-howto
new file mode 100644
index 0000000..bf55bce
--- /dev/null
+++ b/docs/short-howto
@@ -0,0 +1,209 @@
+This short HOW-TO describes how to setup a repository using reprepro.
+
+First choose a directory where you want to store your repository,
+
+1) Configuration:
+
+Generate a directory named conf/.
+
+Create a file named "distributions" there.
+
+Add entries such as:
+
+Origin: Debian
+Label: Debian-All
+Suite: stable
+Codename: woody
+Version: 3.0
+Architectures: i386 sparc mips source
+Components: main non-free contrib
+Description: Debian woody + woody/non-US + woody/updates
+#Update: debian non-US security
+#SignWith: yes
+
+Or:
+
+Origin: PCPool
+Label: PCPool
+Suite: stable
+Codename: pcpool
+Version: 3.0
+Architectures: i386 source
+Components: main non-free contrib bad protected server
+UDebComponents: main
+Description: PCPool specific (or backported) packages
+SignWith: yes
+DebOverride: override
+UDebOverride: override
+DscOverride: srcoverride
+
+Multiple entries are separated with an empty line.
+
+The codename of the distribution is specified with Codename:.
+It is the primary name of a distribution and e.g. used to determine the
+directory to create and put the index files into.
+
+Update: is described later.
+
+If SignWith: is there, it will try to sign it: either use "yes" or give
+something gpg can use to identify the key you want to use.
+
+The other fields are copied into the appropriate "Release" files generated.
+
+2) Adding files to the repository:
+
+To add a .deb manually:
+
+reprepro -Vb . includedeb pcpool /var/cache/apt/archives/libc6_2.2.5-11.8_i386.deb
+
+to add a .changes file:
+
+reprepro -Vb . include pcpool test.changes
+
+Hint: you can add "-C component", "-A architecture", "-S section" and "-P
+priority" to give additional hints where it should go. Note -A will not
+overwrite something to go into another architecture, but simply ignore those
+not fitting, only "Architecture: all" packages are placed exactly in these
+architecture. Helps when it is not available for all architectures and each
+binary version needs a fitting version of the "Architecture: all" package.
+
+3) Removing files from the repository:
+
+reprepro -Vb . remove pcpool libc6
+
+to only remove from a specific component or architecture:
+
+reprepro -Vb . -C main -A i386 remove pcpool libc6
+
+4) Getting information about a package:
+
+To see in which architectures/components a package exists and which version it
+uses.
+
+reprepro -b . list pcpool libc6
+
+5) Override-Files:
+
+When including packages via "includedeb", "includedsc" or "include"
+the applicable override file from the distribution it is placed
+into is used. The file given by DebOverride: for ".deb"s, the
+file given by UDebOverride: for ".udeb"s and the file given by
+DscOverride: for ".dsc"s. If the filename starts with
+a slash (/) it is not relative to the conf directory given
+with --conf, defaulting to "conf" in the current directory (or in the
+directory specified with --basedir, if that is given).
+
+Note that the Format is those of apt-ftparchive's ExtraOverride, not the old format.
+An (stupid) example line for that file would be:
+libc6 Priority extra
+
+6) importing from upstream repositories:
+
+The file conf/updates can contain entries like this:
+
+Name: debian
+Method: http://ftp.debian.de/debian
+VerifyRelease: F1D53D8C4F368D5D
+
+Name: non-US
+Method: http://ftp.debian.de/debian-non-US
+Suite: */non-US
+Architectures: i386 sparc mips source
+Components: main>main non-free>non-free contrib>contrib
+UDebComponents:
+VerifyRelease: B629A24C38C6029A
+
+Name: security
+Method: http://security.debian.org/debian-security
+Suite: */updates
+UDebComponents:
+VerifyRelease: F1D53D8C4F368D5D
+
+Which of those are used is determined by the Update: line
+in the description in conf/distributions. When Suite:,
+Architecture:, Components: or UDebComponents: are not given,
+those of the distribution to be added are used.
+The suite of the target can be used as "*" in the Suite: here.
+VerifyRelease: tells which GPG key to use checking the Release.gpg.
+
+Add a "IgnoreRelease: yes" to ignore any Release files.
+
+To import components in other components, use the source>target
+syntax.
+
+Method: describes an apt-method, for which the programs
+from /usr/lib/apt/methods are used...
+
+To update everything possible do:
+
+reprepro -b . update
+
+To only update some distributions do:
+
+reprepro -b . update woody
+
+There is no support for updating a distribution from only specific
+ upstreams yet. You will have to edit conf/distributions for that.
+
+The value for VerifyRelease: can be retrieved using:
+
+gpg --with-colons --list-keys <whatever>
+
+===============================================================================
+The following is from V. Stanley Jaddoe <debian@terabytemusic.cjb.net>.
+Make sure to include all sources when allowing everyone access to software
+only available under GPL to you. Well, you should always supply sources,
+but in some cases not doing so might cause you trouble.
+
+Using reprepro with apache2 (sarge, etch, sid)
+
+This example assumes the reprepro repository is under /srv/reprepro/ and that
+apache2 has been correctly installed and configured.
+
+The first step is to create a virtual directory called debian/. Assuming your
+server runs the host http://www.example.com/, the web repository will be
+placed at http://www.example.com/debian/.
+
+Create an apache2 config file in the conf dir of your reprepro repository,
+using the following command:
+
+cat > /srv/reprepro/conf/apache.conf << EOF
+Alias /debian /srv/reprepro/
+<Directory /srv/reprepro>
+        Options +Indexes
+        AllowOverride None
+        order allow,deny
+        allow from all
+</Directory>
+EOF
+
+To enable this virtual directory, a symlink has to be created. This can be done
+using the following command:
+
+ln -s /srv/reprepro/conf/apache.conf /etc/apache2/conf.d/reprepro.conf
+
+The second step is setting the permissions in such a way that web users can
+browse the repository, but cannot view the reprepro specific configuration.
+This can be done using the following commands:
+
+chown -R root:root /srv/reprepro/
+chmod 755 /srv/reprepro/
+chown -R root:www-data /srv/reprepro/dists/ /srv/reprepro/pool/
+chmod 750 /srv/reprepro/*
+
+Reload apache2:
+
+/etc/init.d/apache2 reload
+
+Check if the repository is viewable by web-users, by pointing your browser to
+
+http://www.example.com/debian/
+
+If there are no problems with your reprepro repository and the apache2
+configuration, you should see two directories, dists/ and pool/.
+
+The last step is to add this new repository to your sources.list.
+
+This is as easy as:
+
+echo "deb http://www.example.com/debian pcpool main non-free contrib" >> /etc/apt/sources.list
diff --git a/docs/xz.example b/docs/xz.example
new file mode 100644
index 0000000..2725bb0
--- /dev/null
+++ b/docs/xz.example
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+# Copy this script to your conf/ dir as xz.sh, make it executable
+# and add to some definition in conf/distributions
+# DscIndices: Sources Release . .gz xz.sh
+# DebIndices: Packages Release . .gz xz.sh
+# UDebIndices: Packages . .gz xz.sh
+# and you have .xz'd Packages and Sources.
+# (alternatively, if you are very brave, put the full path to this file in there)
+
+DIROFDIST="$1"
+NEWNAME="$2"
+OLDNAME="$3"
+# this can be old($3 exists), new($2 exists) or change (both):
+STATUS="$4"
+BASENAME="`basename "$OLDNAME"`"
+
+if [ "xPackages" = "x$BASENAME" ] || [ "xSources" = "x$BASENAME" ] ; then
+	if [ "x$STATUS" = "xold" ] ; then
+		if [ -f "$DIROFDIST/$OLDNAME.xz" ] ; then
+			echo "$OLDNAME.xz" >&3
+		else
+			xz -c -- "$DIROFDIST/$OLDNAME" >"$DIROFDIST/$OLDNAME.xz.new" 3>/dev/null
+			echo "$OLDNAME.xz.new" >&3
+		fi
+	else
+		xz -c -- "$DIROFDIST/$NEWNAME" >"$DIROFDIST/$OLDNAME.xz.new" 3>/dev/null
+		echo "$OLDNAME.xz.new" >&3
+	fi
+fi