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Filename : dpkg-buildtree
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#!/usr/bin/perl
#
# dpkg-buildtree
#
# Copyright © 2023 Guillem Jover <guillem@debian.org>
#
# 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, see <https://www.gnu.org/licenses/>.

use strict;
use warnings;

use Dpkg ();
use Dpkg::Gettext;
use Dpkg::ErrorHandling;
use Dpkg::BuildTree;

textdomain('dpkg-dev');

sub version {
    printf g_("Debian %s version %s.\n"), $Dpkg::PROGNAME, $Dpkg::PROGVERSION;

    printf g_('
This is free software; see the GNU General Public License version 2 or
later for copying conditions. There is NO warranty.
');
}

sub usage {
    printf g_(
'Usage: %s [<command>]')
    . "\n\n" . g_(
'Commands:
  clean              clean dpkg generated artifacts from the build tree.
  --help             show this help message.
  --version          show the version.
'), $Dpkg::PROGNAME;
}

my $action;

while (@ARGV) {
    my $arg = shift @ARGV;
    if ($arg eq 'clean') {
        usageerr(g_('two commands specified: %s and %s'), $1, $action)
            if defined $action;
        $action = $arg;
    } elsif ($arg eq '-?' or $arg eq '--help') {
        usage();
        exit 0;
    } elsif ($arg eq '--version') {
        version();
        exit 0;
    } else {
        usageerr(g_("unknown option '%s'"), $arg);
    }
}

usageerr(g_('missing action')) unless $action;

my $bt = Dpkg::BuildTree->new();

if ($action eq 'clean') {
    $bt->clean();
}