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#!/usr/bin/perl
#
# dpkg-vendor
#
# Copyright © 2009 Raphaël Hertzog <hertzog@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 <http://www.gnu.org/licenses/>.
use strict;
use warnings;
use Dpkg;
use Dpkg::Gettext;
use Dpkg::ErrorHandling;
use Dpkg::Vendor qw(get_vendor_info get_current_vendor);
textdomain("dpkg-dev");
sub version {
printf _g("Debian %s version %s.\n"), $progname, $version;
printf _g("
Copyright (C) 2009 Raphael Hertzog <hertzog\@debian.org>.");
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 [<option> ...] [<action>]
Options:
--vendor <vendor> assume <vendor> is the current vendor
Actions:
--is <vendor> returns true if current vendor is <vendor>.
--derives-from <vendor> returns true if current vendor derives from <vendor>.
--query <field> print the content of the vendor-specific field.
--help show this help message.
--version show the version.
"), $progname;
}
my ($vendor, $param, $action);
while (@ARGV) {
$_ = shift(@ARGV);
if (m/^--vendor$/) {
$vendor = shift(@ARGV);
} elsif (m/^--(is|derives-from|query)$/) {
usageerr(_g("two commands specified: --%s and --%s"), $1, $action)
if defined($action);
$action = $1;
$param = shift(@ARGV);
} elsif (m/^-(h|-help)$/) {
usage();
exit 0;
} elsif (m/^--version$/) {
version();
exit 0;
} else {
usageerr(_g("unknown option \`%s'"), $_);
}
}
usageerr(_g("need an action option")) unless defined($action);
# Uses $ENV{DEB_VENDOR} if set
$vendor = get_current_vendor() unless defined($vendor);
my $info = get_vendor_info($vendor);
unless (defined($info)) {
error(_g("vendor %s doesn't exist in /etc/dpkg/origins/"),
$vendor || "default");
}
if ($action eq 'is') {
exit(0) if lc($param) eq lc($info->{'Vendor'});
exit(1);
} elsif ($action eq 'derives-from') {
exit(0) if lc($param) eq lc($info->{'Vendor'});
while (defined($info) && exists $info->{'Parent'}) {
$info = get_vendor_info($info->{'Parent'});
exit(0) if lc($param) eq lc($info->{'Vendor'});
}
exit(1);
} elsif ($action eq 'query') {
if (exists $info->{$param}) {
print $info->{$param} . "\n";
exit(0);
} else {
exit(1);
}
}