/usr/bin/dh_md5sums is in debhelper 9.20120115ubuntu3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | #!/usr/bin/perl -w
=head1 NAME
dh_md5sums - generate DEBIAN/md5sums file
=cut
use strict;
use Cwd;
use Debian::Debhelper::Dh_Lib;
=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 the B<debsums> package.
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},
});
foreach my $package (@{$dh{DOPACKAGES}}) {
next if is_udeb($package);
my $tmp=tmpdir($package);
if (! -d "$tmp/DEBIAN") {
doit("install","-d","$tmp/DEBIAN");
}
# Check if we should exclude conffiles.
my $exclude="";
if (! $dh{INCLUDE_CONFFILES} && -r "$tmp/DEBIAN/conffiles") {
# Generate exclude regexp.
open (CONFF,"$tmp/DEBIAN/conffiles");
while (<CONFF>) {
chomp;
s/^\///;
$exclude.="! -path \"./$_\" ";
}
close CONFF;
}
# See if we should exclude other files.
if (defined($dh{EXCLUDE_FIND}) && $dh{EXCLUDE_FIND} ne '') {
$exclude.="! \\( $dh{EXCLUDE_FIND} \\) ";
}
my $find="find . -type f $exclude ! -regex '.*/DEBIAN/.*' -printf '%P\\0'";
complex_doit("(cd $tmp >/dev/null ; $find | LC_ALL=C sort -z | xargs -r0 md5sum > DEBIAN/md5sums) >/dev/null");
# If the file's empty, no reason to waste inodes on it.
if (-z "$tmp/DEBIAN/md5sums") {
doit("rm","-f","$tmp/DEBIAN/md5sums");
}
else {
doit("chmod",644,"$tmp/DEBIAN/md5sums");
doit("chown","0:0","$tmp/DEBIAN/md5sums");
}
}
=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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