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dh_installchangelogs
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dh_installchangelogs
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#!/usr/bin/perl
=head1 NAME
dh_installchangelogs - install changelogs into package build directories
=cut
use strict;
use warnings;
use Debian::Debhelper::Dh_Lib;
our $VERSION = DH_BUILTIN_VERSION;
=head1 SYNOPSIS
B<dh_installchangelogs> [S<I<debhelper options>>] [B<-k>] [B<-X>I<item>] [I<upstream>]
=head1 DESCRIPTION
B<dh_installchangelogs> is a debhelper program that is responsible for
installing changelogs into package build directories.
An upstream F<changelog> file may be specified as an option. If none
is specified, B<dh_installchangelogs> may look for files with names
that seem likely to be changelogs as described in the next paragraphs.
In non-native packages, B<dh_installchangelogs> will first look for
changelog files installed by the upstream build system into F<<
usr/share/doc/I<package> >> (of the package build directory) and
rename the most likely candidate (if any) to F<<
usr/share/doc/I<package>/changelog >>. Note that
B<dh_installchangelogs> does I<not> look into any source directory
(such as F<debian/tmp>). Otherwise, B<dh_installchangelogs> (at
compatibility level 7 or any later) will look for changelog files in
the source directory (e.g. the root or the F<docs> subdirectory). It
will look for F<changelog>, F<changes> and F<history> optionally with
common extensions (such as F<.txt>, F<.md> and F<.rst>).
If a changelog file is specified and is an F<html> file (determined by file
extension), it will be installed as F<usr/share/doc/package/changelog.html>
instead. If the html changelog is converted to plain text, that variant
can be specified as a second parameter. When no plain text variant is
specified, a short F<usr/share/doc/package/changelog> is generated,
pointing readers at the html changelog file.
=head1 FILES
=over 4
=item F<debian/changelog>
=item F<debian/NEWS>
=item debian/I<package>.changelog
=item debian/I<package>.NEWS
Automatically installed into usr/share/doc/I<package>/
in the package build directory.
Use the package specific name if I<package> needs a different
F<NEWS> or F<changelog> file.
The F<changelog> file is installed with a name of changelog
for native packages, and F<changelog.Debian> for non-native packages.
The F<NEWS> file is always installed with a name of F<NEWS.Debian>.
=back
=head1 OPTIONS
=over 4
=item B<-k>, B<--keep>
Keep the original name of the upstream changelog. This will be accomplished
by installing the upstream changelog as F<changelog>, and making a symlink from
that to the original name of the F<changelog> file. This can be useful if the
upstream changelog has an unusual name, or if other documentation in the
package refers to the F<changelog> file.
=item B<-X>I<item>, B<--exclude=>I<item>
Exclude upstream F<changelog> files that contain I<item> anywhere in their
filename from being installed.
Note that directory name of the changelog is also part of the match.
=item I<upstream>
Install this file as the upstream changelog.
=back
=cut
# For binNMUs the first changelog entry is written into an extra file to
# keep the packages coinstallable.
sub install_binNMU_changelog {
my ($package, $input_fn, $changelog_name)=@_;
open (my $input, "<", $input_fn);
my $line=<$input>;
if (defined $line && $line =~ /\A\S.*;.*\bbinary-only=yes/) {
my $mask=umask 0022;
my @stat=stat $input_fn or error("could not stat $input_fn: $!");
my $tmp=tmpdir($package);
my $output_fn="$tmp/usr/share/doc/$package/$changelog_name";
open my $output, ">", $output_fn
or error("could not open $output_fn for writing: $!");
my $arch=package_binary_arch($package);
my $output_fn_binary="$output_fn.$arch";
open my $output_binary, ">", $output_fn_binary
or error("could not open $output_fn_binary for writing: $!");
do {
print {$output_binary} $line
or error("Could not write to $output_fn_binary: $!");
} while(defined($line=<$input>) && $line !~ /\A\S/);
close $output_binary or error("Couldn't close $output_fn_binary: $!");
utime $stat[8], $stat[9], $output_fn_binary;
do {
print {$output} $line
or error("Could not write to $output_fn: $!");
} while(defined($line=<$input>));
close $input or error("Couldn't close $input_fn: $!");
close $output or error("Couldn't close $output_fn: $!");
utime $stat[8], $stat[9], $output_fn;
if (should_use_root()) {
chown(0, 0, $output_fn, $output_fn_binary) or error("chown: $!");
}
umask $mask;
return 1;
}
else {
close $input;
return 0;
}
}
init(options => {
'keep|k' => \$dh{K_FLAG},
});
my $news_name="NEWS.Debian";
my $changelog_name="changelog.Debian";
my $explicit_changelog = @ARGV ? 1 : 0;
my $default_upstream = $ARGV[0];
my $default_upstream_text=$default_upstream;
my $default_upstream_html;
if (! defined($default_upstream)) {
if (! isnative($dh{MAINPACKAGE}) && !compat(6)) {
foreach my $dir (qw{. doc docs}) {
my $changelog = find_changelog($dir);
if ($changelog) {
$default_upstream = $changelog;
$default_upstream_text = $default_upstream;
last;
}
}
}
if (isnative($dh{MAINPACKAGE})) {
$changelog_name='changelog';
}
}
elsif ($default_upstream=~m/\.html?$/i) {
$default_upstream_html=$default_upstream;
$default_upstream_text=$ARGV[1];
}
sub find_changelog {
my ($dir) = @_;
my @files=sort glob("$dir/*");
foreach my $suffix ('', qw(.txt .md .rst)) {
foreach my $name (qw{changelog changes history}) {
my @matches=grep {
lc basename($_) eq "$name$suffix" && -f $_ && -s _ && ! excludefile($_)
} @files;
if (@matches) {
return shift(@matches);
}
}
}
return;
}
on_pkgs_in_parallel {
foreach my $package (@_) {
next if is_udeb($package);
my $tmp=tmpdir($package);
my $changelog=pkgfile($package,"changelog");
my $news=pkgfile($package,"NEWS");
my $upstream_changelog;
my ($upstream_changelog_text, $upstream_changelog_html);
my $changelog_from_tmp_dir = 0;
if ($explicit_changelog) {
$upstream_changelog = $default_upstream;
$upstream_changelog_text = $default_upstream_text;
$upstream_changelog_html = $default_upstream_html;
} else {
# Check if the upstream build system provided a
# changelog
$upstream_changelog = find_changelog("${tmp}/usr/share/doc/${package}");
if ($upstream_changelog) {
$upstream_changelog_text = $upstream_changelog;
$changelog_from_tmp_dir = 1;
} else {
$upstream_changelog = $default_upstream;
$upstream_changelog_text = $upstream_changelog;
}
}
if (!$changelog) {
$changelog="debian/changelog";
}
if (!$news) {
$news="debian/NEWS";
}
if (! -e $changelog) {
error("could not find changelog $changelog");
}
# If it is a symlink to a documentation directory from the same
# source package, then don't do anything. Think multi-binary
# packages that depend on each other and want to link doc dirs.
if (-l "$tmp/usr/share/doc/$package") {
my $linkval=readlink("$tmp/usr/share/doc/$package");
my %allpackages=map { $_ => 1 } getpackages();
if ($allpackages{basename($linkval)}) {
next;
}
# Even if the target doesn't seem to be a doc dir from the
# same source package, don't do anything if it's a dangling
# symlink.
next unless -d "$tmp/usr/share/doc/$package";
}
install_dir("$tmp/usr/share/doc/$package");
if (! $dh{NO_ACT}) {
if (! install_binNMU_changelog($package, $changelog, $changelog_name)) {
install_file($changelog,
"$tmp/usr/share/doc/$package/$changelog_name");
}
}
if (-e $news) {
install_file($news, "$tmp/usr/share/doc/$package/$news_name");
}
if (defined($upstream_changelog)) {
my $link_to;
my $base="$tmp/usr/share/doc/$package";
if (defined($upstream_changelog_text)) {
if ($changelog_from_tmp_dir and not $dh{K_FLAG}) {
# mv (unless if it is the same file)
rename_path($upstream_changelog_text, "$base/changelog")
if basename($upstream_changelog_text) ne 'changelog';
reset_perm_and_owner(0644, "$base/changelog");
} else {
install_file($upstream_changelog_text, "$base/changelog");
}
$link_to='changelog';
}
if (defined($upstream_changelog_html)) {
if ($changelog_from_tmp_dir and not $dh{K_FLAG}) {
# mv (unless if it is the same file)
rename_path($upstream_changelog_html, "$base/changelog.html")
if basename($upstream_changelog_text) ne 'changelog.html';
reset_perm_and_owner(0644, "$base/changelog.html");
} else {
install_file($upstream_changelog_html,"$base/changelog.html");
}
$link_to='changelog.html';
if (! defined($upstream_changelog_text)) {
complex_doit("echo 'See changelog.html.gz' > $base/changelog");
reset_perm_and_owner(0644,"$base/changelog");
}
}
if ($dh{K_FLAG}) {
# Install symlink to original name of the upstream changelog file.
# Use basename in case original file was in a subdirectory or something.
doit('ln', '-sf', $link_to, "$tmp/usr/share/doc/$package/".basename($upstream_changelog));
}
}
}
};
=head1 SEE ALSO
L<debhelper(7)>
This program is a part of debhelper.
=head1 AUTHOR
Joey Hess <joeyh@debian.org>
=cut