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#!/usr/bin/perl
=head1 NAME
dh_md5sums - generate DEBIAN/md5sums file
=cut
use strict;
use warnings;
use Cwd;
use Debian::Debhelper::Dh_Lib;
our $VERSION = DH_BUILTIN_VERSION;
=head1 SYNOPSIS
B<dh_md5sums> [S<I<debhelper options>>] [B<-x>] [B<-X>I<item>] [B<--include-conffiles>]
=head1 DESCRIPTION
B<dh_md5sums> is a debhelper program that is responsible for generating
a F<DEBIAN/md5sums> file, which lists the md5sums of each file in the package.
These files are used by B<dpkg --verify> or the L<debsums(1)> program.
All files in F<DEBIAN/> are omitted from the F<md5sums> file, as are all
conffiles (unless you use the B<--include-conffiles> switch).
The md5sums file is installed with proper permissions and ownerships.
=head1 OPTIONS
=over 4
=item B<-x>, B<--include-conffiles>
Include conffiles in the md5sums list. Note that this information is
redundant since it is included elsewhere in Debian packages.
=item B<-X>I<item>, B<--exclude=>I<item>
Exclude files that contain I<item> anywhere in their filename from
being listed in the md5sums file.
=back
=cut
init(options => {
"x" => \$dh{INCLUDE_CONFFILES}, # is -x for some unknown historical reason..
"include-conffiles" => \$dh{INCLUDE_CONFFILES},
});
on_pkgs_in_parallel {
foreach my $package (@_) {
next if is_udeb($package);
my $dbgsym_tmp = dbgsym_tmpdir($package);
my $tmp=tmpdir($package);
install_dir("$tmp/DEBIAN");
# Check if we should exclude conffiles.
my %conffiles;
if (! $dh{INCLUDE_CONFFILES} && -r "$tmp/DEBIAN/conffiles") {
# Generate exclude regexp.
open(my $fd, '<', "$tmp/DEBIAN/conffiles")
or error("open $tmp/DEBIAN/conffiles failed: $!");
while (my $line = <$fd>) {
chomp($line);
$line =~ s/^\///;
$conffiles{$line} = 1;
}
close($fd);
}
generate_md5sums_file($tmp, \%conffiles);
if ( -d $dbgsym_tmp) {
install_dir("${dbgsym_tmp}/DEBIAN");
generate_md5sums_file($dbgsym_tmp);
}
}
};
sub generate_md5sums_file {
my ($tmpdir, $conffiles) = @_;
my $find_pid = open(my $find_fd, '-|') // error("fork failed: $!");
my (@files, $pipeline_pid);
if (not $find_pid) {
# Child
chdir($tmpdir) or error("chdir($tmpdir) failed: $!");
exec { 'find' } 'find', '-type', 'f', '!', '-regex', './DEBIAN/.*', '-printf', "%P\\0";
}
local $/ = "\0"; # NUL-terminated input/"lines"
while (my $line = <$find_fd>) {
chomp($line);
next if excludefile($line);
next if $conffiles and %{$conffiles} and exists($conffiles->{$line});
push(@files, $line);
}
close($find_fd) or error_exitcode("find -type f ! -regex './DEBIAN/.*' -printf '%P\\0'");
@files = sort(@files);
verbose_print("cd $tmpdir >/dev/null && " . q{xargs -r0 md5sum | perl -pe 'if (s@^\\\\@@) { s/\\\\\\\\/\\\\/g; }' > DEBIAN/md5sums});
$pipeline_pid = open(my $pipeline_fd, '|-') // error("fork failed: $!");
if (not $pipeline_pid) {
# Child
chdir($tmpdir) or error("chdir($tmpdir) failed: $!");
exec { 'sh' } '/bin/sh', '-c', q{xargs -r0 md5sum | perl -pe 'if (s@^\\\\@@) { s/\\\\\\\\/\\\\/g; }' > DEBIAN/md5sums};
}
printf {$pipeline_fd} "%s\0", $_ for @files; # @files include NUL-terminator
close($pipeline_fd) or error_exitcode("cd $tmpdir >/dev/null && xargs -r0 md5sum | perl -pe 'if (s@^\\\\@@) { s/\\\\\\\\/\\\\/g; }' > DEBIAN/md5sums");
reset_perm_and_owner(0644, "${tmpdir}/DEBIAN/md5sums");
return;
}
=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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