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-rwxr-xr-xscripts/edit-patch.sh313
1 files changed, 313 insertions, 0 deletions
diff --git a/scripts/edit-patch.sh b/scripts/edit-patch.sh
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+#!/bin/sh
+#
+# Copyright (C) 2009 Canonical
+#
+# Authors:
+# Michael Vogt
+# Daniel Holbach
+# David Futcher
+#
+# 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; version 3.
+#
+# 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+set -e
+
+PROGNAME=${0##*/}
+
+PATCHSYSTEM="unknown"
+PATCHNAME="no-patch-name"
+PREFIX="debian/patches"
+
+PATCH_DESC=$(cat<<EOF
+## Description: add some description\
+\n## Origin/Author: add some origin or author\
+\n## Bug: bug URL
+EOF
+)
+
+fatal_error() {
+ echo "$@" >&2
+ exit 1
+}
+
+# check if the given binary is installed and give an error if not
+# arg1: binary
+# arg2: error message
+require_installed() {
+ if ! which "$1" >/dev/null; then
+ fatal_error "$2"
+ fi
+}
+
+ensure_debian_dir() {
+ if [ ! -e debian/control ] || [ ! -e debian/rules ]; then
+ fatal_error "Can not find debian/rules or debian/control. Not in a debian dir?"
+ fi
+
+}
+
+detect_patchsystem() {
+ CDBS_PATCHSYS="^[^#]*simple-patchsys.mk"
+
+ if grep -q "$CDBS_PATCHSYS" debian/rules; then
+ PATCHSYSTEM="cdbs"
+ require_installed cdbs-edit-patch "no cdbs-edit-patch found, is 'cdbs' installed?"
+ elif [ -e debian/patches/00list ]; then
+ PATCHSYSTEM="dpatch"
+ require_installed dpatch-edit-patch "no dpatch-edit-patch found, is 'dpatch' installed?"
+ elif [ -e debian/patches/series -o \
+ "$(cat debian/source/format 2> /dev/null)" = "3.0 (quilt)" ]; then
+ PATCHSYSTEM="quilt"
+ require_installed quilt "no quilt found, is 'quilt' installed?"
+ else
+ PATCHSYSTEM="none"
+ PREFIX="debian/applied-patches"
+ fi
+}
+
+# remove full path if given
+normalize_patch_path() {
+ PATCHNAME=${PATCHNAME##*/}
+ echo "Normalizing patch path to $PATCHNAME"
+}
+
+# ensure (for new patches) that:
+# - dpatch ends with .dpatch
+# - cdbs/quilt with .patch
+normalize_patch_extension() {
+ # check if we have a patch already
+ if [ -e $PREFIX/$PATCHNAME ]; then
+ echo "Patch $PATCHNAME exists, not normalizing"
+ return
+ fi
+
+ # normalize name for new patches
+ PATCHNAME=${PATCHNAME%.*}
+ if [ "$PATCHSYSTEM" = "quilt" ]; then
+ PATCHNAME="${PATCHNAME}.patch"
+ elif [ "$PATCHSYSTEM" = "cdbs" ]; then
+ PATCHNAME="${PATCHNAME}.patch"
+ elif [ "$PATCHSYSTEM" = "dpatch" ]; then
+ PATCHNAME="${PATCHNAME}.dpatch"
+ elif [ "$PATCHSYSTEM" = "none" ]; then
+ PATCHNAME="${PATCHNAME}.patch"
+ fi
+
+ echo "Normalizing patch name to $PATCHNAME"
+}
+
+edit_patch_cdbs() {
+ cdbs-edit-patch $PATCHNAME
+ vcs_add debian/patches/$1
+}
+
+edit_patch_dpatch() {
+ dpatch-edit-patch $PATCHNAME
+ # add if needed
+ if ! grep -q $1 $PREFIX/00list; then
+ echo "$1" >> $PREFIX/00list
+ fi
+ vcs_add $PREFIX/00list $PREFIX/$1
+}
+
+edit_patch_quilt() {
+ export QUILT_PATCHES=debian/patches
+ if [ -e $QUILT_PATCHES ]; then
+ top_patch=$(quilt top)
+ echo "Top patch: $top_patch"
+ fi
+ if [ -e $PREFIX/$1 ]; then
+ # if it's an existing patch and we are at the end of the stack,
+ # go back at the beginning
+ if ! quilt unapplied; then
+ quilt pop -a
+ fi
+ quilt push $1
+ else
+ # if it's a new patch, make sure we are at the end of the stack
+ if quilt unapplied >/dev/null; then
+ quilt push -a
+ fi
+ quilt new $1
+ fi
+ # use a sub-shell
+ quilt shell
+ quilt refresh
+ if [ -n $top_patch ]; then
+ echo "Reverting quilt back to $top_patch"
+ quilt pop $top_patch
+ fi
+ vcs_add $PREFIX/$1 $PREFIX/series
+}
+
+edit_patch_none() {
+ # Dummy edit-patch function, just display a warning message
+ echo "No patchsystem could be found so the patch was applied inline and a copy \
+stored in debian/patches-applied. Please remember to mention this in your changelog."
+}
+
+add_patch_quilt() {
+ # $1 is the original patchfile, $2 the normalized name
+ # FIXME: use quilt import instead?
+ cp $1 $PREFIX/$2
+ if ! grep -q $2 $PREFIX/series; then
+ echo "$2" >> $PREFIX/series
+ fi
+ vcs_add $PREFIX/$2 $PREFIX/series
+}
+
+add_patch_cdbs() {
+ # $1 is the original patchfile, $2 the normalized name
+ cp $1 $PREFIX/$2
+ vcs_add $PREFIX/$2
+}
+
+add_patch_dpatch() {
+ # $1 is the original patchfile, $2 the normalized name
+ cp $1 $PREFIX
+ if ! grep -q $2 $PREFIX/00list; then
+ echo "$2" >> $PREFIX/00list
+ fi
+ vcs_add $PREFIX/$2 $PREFIX/00list
+}
+
+add_patch_none() {
+ # $1 is the original patchfile, $2 the normalized name
+ cp $1 $PREFIX/$2
+ vcs_add $PREFIX/$2
+}
+
+vcs_add() {
+ if [ -d .bzr ]; then
+ bzr add $@
+ elif [ -d .git ];then
+ git add $@
+ else
+ echo "Remember to add $@ to a VCS if you use one"
+ fi
+}
+
+vcs_commit() {
+ # check if debcommit is happy
+ if ! debcommit --noact 2>/dev/null; then
+ return
+ fi
+ # commit (if the user confirms)
+ debcommit --confirm
+}
+
+add_changelog() {
+ S="$PREFIX/$1: [DESCRIBE CHANGES HERE]"
+ if head -n1 debian/changelog|grep UNRELEASED; then
+ dch --append "$S"
+ else
+ dch --increment "$S"
+ fi
+ # let the user edit it
+ dch --edit
+}
+
+add_patch_tagging() {
+ # check if we have a description already
+ if grep "## Description:" $PREFIX/$1; then
+ return
+ fi
+ # if not, add one
+ RANGE=1,1
+ # make sure we keep the first line (for dpatch)
+ if head -n1 $PREFIX/$1|grep -q '^#'; then
+ RANGE=2,2
+ fi
+ sed -i ${RANGE}i"$PATCH_DESC" $PREFIX/$1
+}
+
+detect_patch_location() {
+ # Checks whether the specified patch exists in debian/patches or on the filesystem
+ FILENAME=${PATCHNAME##*/}
+
+ if [ -f "$PREFIX/$FILENAME" ]; then
+ PATCHTYPE="debian"
+ elif [ -f "$PATCHNAME" ]; then
+ PATCHTYPE="file"
+ PATCHORIG="$PATCHNAME"
+ else
+ if [ "$PATCHSYSTEM" = "none" ]; then
+ fatal_error "No patchsystem detected, cannot create new patch (no dpatch/quilt/cdbs?)"
+ else
+ PATCHTYPE="new"
+ fi
+ fi
+}
+
+handle_file_patch() {
+ if [ "$PATCHTYPE" = "file" ]; then
+ [ -f "$PATCHORIG" ] || fatal_error "No patch detected"
+
+ if [ "$PATCHSYSTEM" = "none" ]; then
+ # If we're supplied a file and there is no patchsys we apply it directly
+ # and store it in debian/applied patches
+ [ -d $PREFIX ] || mkdir $PREFIX
+
+ patch -p0 < "$PATCHORIG"
+ cp "$PATCHORIG" "$PREFIX/$PATCHNAME"
+ else
+ # Patch type is file but there is a patchsys present, so we add it
+ # correctly
+ cp "$PATCHORIG" "$PREFIX/$PATCHNAME"
+
+ if [ "$PATCHSYSTEM" = "quilt" ]; then
+ echo "$PATCHNAME" >> $PREFIX/series
+ elif [ "$PATCHSYSTEM" = "dpatch" ]; then
+ echo "$PATCHNAME" >> $PREFIX/00list
+
+ # Add the dpatch header to files that don't already have it
+ if ! grep -q "@DPATCH@" "$PREFIX/$PATCHNAME"; then
+ sed -i '1i#! /bin/sh /usr/share/dpatch/dpatch-run\n@DPATCH@' $PREFIX/$PATCHNAME
+ fi
+ fi
+
+ echo "Copying and applying new patch. You can now edit the patch or exit the subshell to save."
+ fi
+ fi
+}
+
+# TODO:
+# - edit-patch --remove implementieren
+# - dbs patch system
+
+main() {
+ # parse args
+ if [ $# -ne 1 ]; then
+ fatal_error "Need exactly one patch name"
+ fi
+ PATCHNAME="$1"
+ # do the work
+ ensure_debian_dir
+ detect_patchsystem
+ detect_patch_location
+ normalize_patch_path
+ normalize_patch_extension
+ handle_file_patch
+ if [ "${PROGNAME%.sh}" = edit-patch ]; then
+ edit_patch_$PATCHSYSTEM $PATCHNAME
+ elif [ "${PROGNAME%.sh}" = add-patch ]; then
+ add_patch_$PATCHSYSTEM $1 $PATCHNAME
+ else
+ fatal_error "Unknown script name: $0"
+ fi
+ add_patch_tagging $PATCHNAME
+ add_changelog $PATCHNAME
+ vcs_commit
+}
+
+main $@