/usr/bin/dh_installchangelogs is in debhelper 9.20150101+deb8u2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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=head1 NAME
dh_installchangelogs - install changelogs into package build directories
=cut
use strict;
use Debian::Debhelper::Dh_Lib;
=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, it looks for files with names that seem likely to be changelogs.
(In compatibility level 7 and above.)
If there is an upstream F<changelog> file, it will be be installed as
F<usr/share/doc/package/changelog> in the package build directory.
If the upstream changelog is is a 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 upstream changelog file. 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.
=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 $arch=package_arch($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;
chown 0, 0, $output_fn, $output_fn_binary
or error "chown: $!";
umask $mask;
return 1;
}
else {
close $input;
return 0;
}
}
init();
my $news_name="NEWS.Debian";
my $changelog_name="changelog.Debian";
my $upstream=shift;
my $upstream_text=$upstream;
my $upstream_html;
if (! defined $upstream) {
if (! isnative($dh{MAINPACKAGE}) && !compat(6)) {
foreach my $dir (qw{. doc docs}) {
my @files=sort glob("$dir/*");
foreach my $name (qw{changelog changes changelog.txt changes.txt history history.txt changelog.md}) {
my @matches=grep {
lc basename($_) eq $name && -s $_ && ! excludefile($_)
} @files;
if (@matches) {
$upstream=shift @matches;
$upstream_text=$upstream;
last;
}
}
}
}
if (isnative($dh{MAINPACKAGE})) {
$changelog_name='changelog';
}
}
elsif ($upstream=~m/\.html?$/i) {
$upstream_html=$upstream;
$upstream_text=shift;
}
foreach my $package (@{$dh{DOPACKAGES}}) {
next if is_udeb($package);
my $tmp=tmpdir($package);
my $changelog=pkgfile($package,"changelog");
my $news=pkgfile($package,"NEWS");
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/$package";
}
if (! -d "$tmp/usr/share/doc/$package") {
doit("install","-d","$tmp/usr/share/doc/$package");
}
if (! $dh{NO_ACT}) {
if (! install_binNMU_changelog($package, $changelog, $changelog_name)) {
doit("install","-o",0,"-g",0,"-p","-m644",$changelog,
"$tmp/usr/share/doc/$package/$changelog_name");
}
}
if (-e $news) {
doit("install","-o",0,"-g",0,"-p","-m644",$news,
"$tmp/usr/share/doc/$package/$news_name");
}
if (defined $upstream) {
my $link_to;
my $base="$tmp/usr/share/doc/$package";
if (defined $upstream_text) {
doit("install","-o",0,"-g",0,"-p","-m644",
$upstream_text,"$base/changelog");
$link_to='changelog';
}
if (defined $upstream_html) {
doit("install","-o",0,"-g",0,"-p","-m644",
$upstream_html,"$base/changelog.html");
$link_to='changelog.html';
if (! defined $upstream_text) {
complex_doit("echo 'See changelog.html.gz' > $base/changelog");
doit("chmod","644","$base/changelog");
doit("chown","0:0","$base/changelog");
}
}
if ($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));
}
}
}
=head1 SEE ALSO
L<debhelper(7)>
This program is a part of debhelper.
=head1 AUTHOR
Joey Hess <joeyh@debian.org>
=cut
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