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#!/usr/bin/perl -w
#
# Generate a DEBIAN/md5sums file, that lists the md5sums of all files in the
# package.

use strict;
use Cwd;
use Debian::Debhelper::Dh_Lib;
init();

foreach my $package (@{$dh{DOPACKAGES}}) {
	my $tmp=tmpdir($package);

	if (! -d "$tmp/DEBIAN") {
		doit("install","-d","$tmp/DEBIAN");
	}

	# Check if we should exclude conffiles.
	my $exclude="";
	if (! $dh{INCLUDE} && -r "$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 $olddir=getcwd();
	complex_doit("cd $tmp >/dev/null ; find * -type f $exclude ! -regex '^DEBIAN/.*' -print0 | xargs -r0 md5sum > DEBIAN/md5sums ; cd $olddir >/dev/null");
	# If the file's empty, no reason to waste inodes on it.
	if (-z "$tmp/DEBIAN/md5sums") {
		doit("rm","-f","$tmp/DEBIAN/md5sums");
	}
	else {
		doit("chmod",644,"$tmp/DEBIAN/md5sums");
		doit("chown","0.0","$tmp/DEBIAN/md5sums");
	}
}