summaryrefslogtreecommitdiffstats
path: root/dh_installdocs
diff options
context:
space:
mode:
Diffstat (limited to '')
-rwxr-xr-xdh_installdocs447
1 files changed, 447 insertions, 0 deletions
diff --git a/dh_installdocs b/dh_installdocs
new file mode 100755
index 0000000..2e4529d
--- /dev/null
+++ b/dh_installdocs
@@ -0,0 +1,447 @@
+#!/usr/bin/perl
+
+=encoding UTF-8
+
+=head1 NAME
+
+dh_installdocs - install documentation into package build directories
+
+=cut
+
+use strict;
+use warnings;
+use Debian::Debhelper::Dh_Lib;
+
+our $VERSION = DH_BUILTIN_VERSION;
+
+=head1 SYNOPSIS
+
+B<dh_installdocs> [S<I<debhelper options>>] [B<-A>] [B<-X>I<item>] [S<I<file> ...>]
+
+=head1 DESCRIPTION
+
+B<dh_installdocs> is a debhelper program that is responsible for installing
+documentation into F<usr/share/doc/package> in package build directories.
+
+In compat 10 and earlier, L<dh_install(1)> may be a better tool for handling
+the upstream documentation, when upstream's own build system installs all the desired documentation
+correctly. In this case, B<dh_installdocs> is still useful for installing
+packaging related documentation (e.g. the F<debian/copyright> file).
+
+From debhelper compatibility level 11 on, B<dh_install> will fall back to
+looking in F<debian/tmp> for files, if it does not find them in the current
+directory (or wherever you've told it to look using B<--sourcedir>).
+
+In compat 11 and later, B<dh_installdocs> offers many of the features that
+L<dh_install(1)> also has. Furthermore, B<dh_installdocs> also supports
+the B<nodoc> build profile to exclude documentation (regardless of compat
+level).
+
+=head1 FILES
+
+=over 4
+
+=item debian/I<package>.docs
+
+List documentation files to be installed into I<package>.
+
+Supports substitution variables in compat 13 and later as
+documented in L<debhelper(7)>.
+
+=item F<debian/copyright>
+
+The copyright file is installed into all packages, unless a more
+specific copyright file is available.
+
+=item debian/I<package>.copyright
+
+=item debian/I<package>.README.Debian
+
+=item debian/I<package>.TODO
+
+Each of these files is automatically installed if present for a
+I<package>.
+
+=item F<debian/README.Debian>
+
+=item F<debian/TODO>
+
+These files are installed into the first binary package listed in
+debian/control.
+
+Note that F<README.debian> files are also installed as F<README.Debian>,
+and F<TODO> files will be installed as F<TODO.Debian> in non-native packages.
+
+=item debian/I<package>.doc-base
+
+Installed as doc-base control files. Note that the doc-id will be
+determined from the B<Document:> entry in the doc-base control file in
+question. In the event that multiple doc-base files in a single source
+package share the same doc-id, they will be installed to
+usr/share/doc-base/package instead of usr/share/doc-base/doc-id.
+
+=item debian/I<package>.doc-base.*
+
+If your package needs to register more than one document, you need
+multiple doc-base files, and can name them like this. In the event
+that multiple doc-base files of this style in a single source package
+share the same doc-id, they will be installed to
+usr/share/doc-base/package-* instead of usr/share/doc-base/doc-id.
+
+Please be aware that this deduplication is currently done in memory
+only, so for now it requires B<dh_installdocs> to be called no more
+than once during the package build. Calling B<dh_installdocs
+-p>I<package> in combination with using
+F<debian/>I<package>F<.doc-base.*> files can lead to uninstallable
+packages. See L<https://bugs.debian.org/980903> for details.
+
+=back
+
+=head1 OPTIONS
+
+=over 4
+
+=item B<-A>, B<--all>
+
+Install all files specified by command line parameters in ALL packages
+acted on.
+
+=item B<-X>I<item>, B<--exclude=>I<item>
+
+Exclude files that contain I<item> anywhere in their filename from
+being installed. Note that this includes doc-base files.
+
+=item B<--sourcedir=>I<dir>
+
+Look in the specified directory for files to be installed. This option
+requires compat 11 or later (it is silently ignored in compat 10 or earlier).
+
+Note that this is not the same as the B<--sourcedirectory> option used
+by the B<dh_auto_>I<*> commands. You rarely need to use this option, since
+B<dh_installman> automatically looks for files in F<debian/tmp> in debhelper
+compatibility level 11 and above.
+
+=item B<--doc-main-package=>I<main-package>
+
+Set the main package for a documentation package. This is used to
+install the documentation of the documentation package in F<<
+/usr/share/doc/I<main-package> >> as recommended by the Debian policy
+manual 3.9.7 in ยง12.3.
+
+In compat 11 (or later), this option is only useful if debhelper's
+auto-detection of the main package is wrong. The option can also be
+used to silence a warning from debhelper when the auto-detection fails
+but the default happens to be correct.
+
+This option cannot be used when B<dh_installdocs> is instructed to act
+on multiple packages. If you need this option, you will generally
+need to combine it with B<-p> to ensure exactly one package is acted
+on.
+
+Please keep in mind that some documentation (the copyright file,
+README.Debian, etc.) will be unaffected by this option.
+
+=item B<--link-doc=>I<package>
+
+Make the documentation directory of all packages acted on be a symlink to
+the documentation directory of I<package>. This has no effect when acting on
+I<package> itself, or if the documentation directory to be created already
+exists when B<dh_installdocs> is run. To comply with policy, I<package> must
+be a binary package that comes from the same source package.
+
+debhelper will try to avoid installing files into linked documentation
+directories that would cause conflicts with the linked package. The B<-A>
+option will have no effect on packages with linked documentation
+directories, and F<copyright>, F<changelog>, F<README.Debian>, and F<TODO> files will
+not be installed.
+
+(An older method to accomplish the same thing, which is still supported,
+is to make the documentation directory of a package be a dangling symlink,
+before calling B<dh_installdocs>.)
+
+Please note that this option only applies to the documentation
+directory for the package itself. When the package ships
+documentation for another package (e.g. see B<--doc-main-package>), it
+will not use a symlink for the documentation of the other package.
+
+
+B<CAVEAT 1>: If a previous version of the package was built without this
+option and is now built with it (or vice-versa), it requires a "dir to
+symlink" (or "symlink to dir") migration. Since debhelper has no
+knowledge of previous versions, you have to enable this migration
+itself.
+
+This can be done by providing a "debian/I<package>.maintscript" file
+and using L<dh_installdeb(1)> to provide the relevant maintainer
+script snippets.
+
+B<CAVEAT 2>: The use of B<--link-doc> should only be done when the
+packages have same "architecture" type. A link from an architecture
+independent package to an architecture dependent package (or vice
+versa) will not work. Since compat 10, debhelper will actively reject
+unsupported combinations.
+
+=item I<file> ...
+
+Install these files as documentation into the first package acted on. (Or
+in all packages if B<-A> is specified).
+
+=back
+
+=head1 EXAMPLES
+
+This is an example of a F<debian/package.docs> file:
+
+ README
+ TODO
+ debian/notes-for-maintainers.txt
+ docs/manual.txt
+ docs/manual.pdf
+ docs/manual-html/
+
+=head1 NOTES
+
+Note that B<dh_installdocs> will happily copy entire directory hierarchies if
+you ask it to (similar to B<cp -a>). If it is asked to install a
+directory, it will install the complete contents of the directory.
+
+=cut
+
+my %docdir_created;
+# Create documentation directories on demand. This allows us to use dangling
+# symlinks for linked documentation directories unless additional files need
+# to be installed.
+sub ensure_docdir {
+ my $package=shift;
+ return if $docdir_created{$package};
+ my $tmp=tmpdir($package);
+
+ my $target;
+ if ($dh{LINK_DOC} && $dh{LINK_DOC} ne $package) {
+ $target="$tmp/usr/share/doc/$dh{LINK_DOC}";
+ }
+ else {
+ $target="$tmp/usr/share/doc/$package";
+ }
+
+ # If this is a symlink, leave it alone.
+ if (! -d $target && ! -l $target) {
+ install_dir($target);
+ }
+ $docdir_created{$package}=1;
+}
+
+init(options => {
+ "link-doc=s" => \$dh{LINK_DOC},
+ "sourcedir=s" => \$dh{SOURCEDIR},
+ 'doc-main-package=s' => \$dh{DOC_MAIN_PACKAGE},
+});
+
+my $called_getpackages = 0;
+my $default_error_handler = compat(10) ? \&glob_expand_error_handler_reject_nomagic_warn_discard : \&glob_expand_error_handler_reject;
+my $nodocs = is_build_profile_active('nodoc') || get_buildoption('nodoc') ? 1 : 0;
+# We cannot assume documentation is built under nodoc, but if it is we must flag it as handled
+# or dh_missing might make noise.
+$default_error_handler = \&glob_expand_error_handler_silently_ignore if $nodocs;
+
+if (@{$dh{DOPACKAGES}} > 1 and $dh{DOC_MAIN_PACKAGE}) {
+ error('--doc-main-package should be used with -p<doc-pkg>');
+}
+
+if ($dh{DOC_MAIN_PACKAGE}) {
+ assert_opt_is_known_package($dh{DOC_MAIN_PACKAGE}, '--doc-main-package');
+}
+
+foreach my $package (getpackages()) {
+ next if is_udeb($package);
+
+ my $tmp=tmpdir($package);
+ my $file=pkgfile($package,"docs");
+ my $link_doc=($dh{LINK_DOC} && $dh{LINK_DOC} ne $package);
+ my $skip_install = process_pkg($package) ? 0 : 1;
+ my @search_dirs = ('.');
+ my $error_handler = $skip_install ? \&glob_expand_error_handler_silently_ignore : $default_error_handler;
+ @search_dirs = ($dh{SOURCEDIR} // '.', default_sourcedir($package)) if not compat(10);
+
+ if (not $skip_install) {
+ if ($link_doc) {
+ getpackages('both') unless $called_getpackages++;
+
+ if (package_binary_arch($package) ne package_binary_arch($dh{LINK_DOC})) {
+ if (compat(9)) {
+ warning("WARNING: --link-doc between architecture all and not all packages breaks binNMUs");
+ } else {
+ error("--link-doc not allowed between ${package} and $dh{LINK_DOC} (one is arch:all and the other not)");
+ }
+ }
+ # Make sure that the parent directory exists.
+ if (!-d "$tmp/usr/share/doc" && !-l "$tmp/usr/share/doc") {
+ install_dir("$tmp/usr/share/doc");
+ }
+ # Create symlink to another documentation directory if
+ # necessary.
+ if (!-d "$tmp/usr/share/doc/$package" &&
+ !-l "$tmp/usr/share/doc/$package") {
+ make_symlink_raw_target($dh{LINK_DOC}, "$tmp/usr/share/doc/$package");
+ # Policy says that if you make your documentation
+ # directory a symlink, then you have to depend on
+ # the target.
+ addsubstvar($package, 'misc:Depends', "$dh{LINK_DOC} (= \${binary:Version})");
+ }
+ } else {
+ ensure_docdir($package);
+ }
+ }
+
+ my @docs;
+
+ if ($file) {
+ @docs = filearray($file, \@search_dirs, $error_handler);
+ }
+
+ if (($package eq $dh{FIRSTPACKAGE} || ($dh{PARAMS_ALL} && !$link_doc)) && @ARGV) {
+ push @docs, @ARGV;
+ }
+
+ log_installed_files($package, @docs);
+
+ next if $skip_install;
+
+ if (not $nodocs and @docs) {
+ my $exclude = ' -and ! -empty';
+ my $target_package = compute_doc_main_package($package);
+ if (not defined($target_package)) {
+ warning("Cannot auto-detect main package for ${package}. If the default is wrong, please use --doc-main-package");
+ $target_package = $package;
+ } elsif ($dh{PARAMS_ALL} and $package ne $target_package and not $dh{DOC_MAIN_PACKAGE}) {
+ warning("Not using auto-detected $target_package as main doc package for $package: With -A/--all, this would cause file-conflicts.");
+ $target_package = $package;
+ }
+ if ($dh{EXCLUDE_FIND}) {
+ $exclude .= ' -and ! \( '.$dh{EXCLUDE_FIND}.' \)';
+ }
+ my $target_dir = "${tmp}/usr/share/doc/${target_package}";
+ install_dir($target_dir) unless -l $target_dir;
+
+ foreach my $doc (@docs) {
+ next if excludefile($doc);
+ next if -f $doc && ! -s _; # ignore empty files
+ ensure_docdir($package);
+ if (-d $doc && length $exclude) {
+ my $basename = basename($doc);
+ my $dir = ($basename eq '.') ? $doc : "$doc/..";
+ my $pwd=`pwd`;
+ chomp $pwd;
+ # Gracefully handling tmpdir being absolute (-P/...)
+ my $docdir = $target_dir =~ m{^/} ? $target_dir : "${pwd}/${target_dir}";
+ complex_doit("cd '$dir' && " .
+ "find '$basename' \\( -type f -or -type l \\)$exclude -print0 | LC_ALL=C sort -z | " .
+ "xargs -0 -I {} cp --reflink=auto --parents -dp {} $docdir");
+ }
+ else {
+ doit("cp", '--reflink=auto', "-a", $doc, $target_dir);
+ }
+ }
+ doit("chown","-R","0:0","$tmp/usr/share/doc") if should_use_root();
+ doit("chmod","-R","u+rw,go=rX","$tmp/usr/share/doc");
+ }
+
+ # .Debian is correct, according to policy, but I'm easy.
+ my $readme_debian=pkgfile($package,'README.Debian');
+ if (! $readme_debian) {
+ $readme_debian=pkgfile($package,'README.debian');
+ }
+ if (! $link_doc && $readme_debian && ! excludefile($readme_debian)) {
+ ensure_docdir($package);
+ install_file($readme_debian,
+ "$tmp/usr/share/doc/$package/README.Debian");
+ }
+
+ my $todo=pkgfile($package,'TODO');
+ if (! $link_doc && $todo && ! excludefile($todo)) {
+ ensure_docdir($package);
+ if (isnative($package)) {
+ install_file($todo, "$tmp/usr/share/doc/$package/TODO");
+ }
+ else {
+ install_file($todo,
+ "$tmp/usr/share/doc/$package/TODO.Debian");
+ }
+ }
+
+ # If the "directory" is a dangling symlink, then don't install
+ # the copyright file. This is useful for multibinary packages
+ # that share a doc directory.
+ if (! $link_doc && (! -l "$tmp/usr/share/doc/$package" || -d "$tmp/usr/share/doc/$package")) {
+ # Support debian/package.copyright, but if not present, fall
+ # back on debian/copyright for all packages, not just the
+ # main binary package.
+ my $copyright=pkgfile($package,'copyright');
+ if (! $copyright && -e "debian/copyright") {
+ $copyright="debian/copyright";
+ }
+ if ($copyright && ! excludefile($copyright)) {
+ ensure_docdir($package);
+ install_file($copyright,
+ "$tmp/usr/share/doc/$package/copyright");
+ }
+ }
+
+ next if $nodocs;
+
+ # Handle doc-base files. There are two filename formats, the usual
+ # plus an extended format (debian/package.*).
+ my %doc_ids;
+
+ opendir(DEB,"debian/") || error("can't read debian directory: $!");
+ # If this is the main package, we need to handle unprefixed filenames.
+ # For all packages, we must support both the usual filename format plus
+ # that format with a period an something appended.
+ my $regexp="\Q$package\E\.";
+ if ($package eq $dh{MAINPACKAGE}) {
+ $regexp="(|$regexp)";
+ }
+ foreach my $fn (grep {/^${regexp}doc-base(\..*)?$/} readdir(DEB)) {
+ # .EX are example files, generated by eg, dh-make
+ next if $fn=~/\.EX$/;
+ next if excludefile($fn);
+ # Parse the file to get the doc id.
+ open(my $fd, '<', "debian/$fn") || die "Cannot read debian/$fn.";
+ while (<$fd>) {
+ s/\s*$//;
+ if (/^Document\s*:\s*(.*)/) {
+ $doc_ids{$fn}=$1;
+ last;
+ }
+ }
+ if (! exists $doc_ids{$fn}) {
+ warning("Could not parse $fn for doc-base Document id; skipping");
+ }
+ close($fd);
+ }
+ closedir(DEB);
+
+ if (%doc_ids) {
+ install_dir("$tmp/usr/share/doc-base/");
+ }
+ foreach my $fn (keys %doc_ids) {
+ # To avoid issues with duplicated document IDs, we will always
+ # install to usr/share/doc-base/<packagename>.<doc_id> instead
+ # of just usr/share/doc-base/<packagename> or just
+ # usr/share/doc-base/<doc_id>. See #525821 and #980903.
+ install_file("debian/$fn",
+ "$tmp/usr/share/doc-base/$package.$doc_ids{$fn}");
+ }
+}
+
+=head1 SEE ALSO
+
+L<debhelper(7)>
+
+This program is a part of debhelper.
+
+=head1 AUTHOR
+
+Joey Hess <joeyh@debian.org>
+
+=cut