#!/usr/bin/perl
# unpack-binpkg-l1 -- lintian unpack script (binary packages level 1)
#
# syntax: unpack-binpkg-l1 <base-dir> <deb-file>
#
# Note that <deb-file> must be specified with absolute path.

# Copyright (C) 1998 Christian Schwarz
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, you can find it on the World Wide
# Web at http://www.gnu.org/copyleft/gpl.html, or write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.

package Lintian::coll::index;

use strict;
use warnings;
use autodie;

# import perl libraries
use lib "$ENV{'LINTIAN_ROOT'}/lib";
use Lintian::Command qw(spawn reap);
use Lintian::Processable::Package;
use Lintian::Util qw(get_dsc_info);

sub collect {
    my ($pkg, $type, $dir) = @_;

    for my $file (qw(index index.gz index-errors)) {
        unlink("$dir/$file") if -e "$dir/$file";
    }

    if ($type ne 'source') {
        index_deb($dir);
    } else {
        chdir("$dir/unpacked");
        spawn(
            { fail => 'error', out => "$dir/index.gz" },
            [
                'find', '(',  '-type', 'l',
                # If symlink
                '-printf', '%M 0/0 %s %AY-%Am-%Ad %AH:%AM %p -> %l\n', '-true',
                # elif dir [needs trailing slash]
                ')', '-o', '(',  '-type', 'd',
                '-printf', '%M 0/0 %s %AY-%Am-%Ad %AH:%AM %p/\n', '-true',
                # else (not dir and not symlink)
                ')', '-o', '-printf', '%M 0/0 %s %AY-%Am-%Ad %AH:%AM %p\n'
            ],
            # Sort and compress
            '|',
            ['sort', '-k', '6'],
            '|',
            ['gzip', '-9c']);
    }

    return;
}

# Creates an index for binary packages
sub index_deb {
    my ($dir) = @_;
    my (@jobs, $job);

    unlink("$dir/index-owner-id") if -f "$dir/index-owner-id";

    $job = {
        fail => 'error',
        out  => "$dir/index.gz",
        err  => "$dir/index-errors"
    };
    push @jobs, $job;
    # (replaces dpkg-deb -c)
    # create index file for package
    spawn(
        $job, ['dpkg-deb', '--fsys-tarfile', "$dir/deb"],
        '|', ['tar', 'tfv', '-'],
        '|', ['sort', '-k', '6'],
        '|', ['gzip', '--best', '-c'], '&'
    );

    $job = {
        fail => 'error',
        out  => "$dir/index-owner-id.gz",
        err  => '/dev/null'
    };
    push @jobs, $job;
    # (replaces dpkg-deb -c)
    # create index file for package with owner IDs instead of names
    spawn(
        $job, ['dpkg-deb', '--fsys-tarfile', "$dir/deb"],
        '|', ['tar', '--numeric-owner', '-tvf', '-'],
        '|', ['sort', '-k', '6'],
        '|', ['gzip', '--best', '-c'],
        '&'
    );

    reap(@jobs);
    undef @jobs;

    # Remove the error file if it is empty...
    unlink("$dir/index-errors") if -z "$dir/index-errors";

    return 1;
}

collect(@ARGV) if $0 =~ m,(?:^|/)index$,;

1;

# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
