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#!/usr/bin/perl
#
# dpkg-vendor
#
# Copyright © 2009 Raphaël Hertzog <hertzog@debian.org>
# Copyright © 2009,2012 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::Vendor qw(get_vendor_dir get_vendor_info get_current_vendor);
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 [<option>...] [<command>]')
. "\n\n" . g_(
'Commands:
--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.')
. "\n\n" . g_(
'Options:
--vendor <vendor> assume <vendor> is the current vendor.')
. "\n", $Dpkg::PROGNAME;
}
my ($vendor, $param, $action);
while (@ARGV) {
$_ = shift(@ARGV);
if (m/^--vendor$/) {
$vendor = shift(@ARGV);
usageerr(g_('%s needs a parameter'), $_) unless defined $vendor;
} elsif (m/^--(is|derives-from|query)$/) {
usageerr(g_('two commands specified: --%s and --%s'), $1, $action)
if defined($action);
$action = $1;
$param = shift(@ARGV);
usageerr(g_('%s needs a parameter'), $_) unless defined $param;
} elsif (m/^-(?:\?|-help)$/) {
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();
my $info = get_vendor_info($vendor);
unless (defined($info)) {
error(g_("vendor %s doesn't exist in %s"), $vendor || 'default',
get_vendor_dir());
}
if ($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);
}
}
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