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@@ -0,0 +1,113 @@
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+#!/usr/bin/perl
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+#
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+# dpkg-vendor
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+#
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+# Copyright © 2009 Raphaël Hertzog <hertzog@debian.org>
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+#
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; if not, write to the Free Software
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+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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+
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+use strict;
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+use warnings;
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+
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+use Dpkg;
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+use Dpkg::Gettext;
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+use Dpkg::ErrorHandling;
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+use Dpkg::Vendor qw(get_vendor_info get_current_vendor);
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+
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+textdomain("dpkg-dev");
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+
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+sub version {
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+ printf _g("Debian %s version %s.\n"), $progname, $version;
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+
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+ printf _g("
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+Copyright (C) 2009 Raphael Hertzog <hertzog\@debian.org>.");
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+
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+ printf _g("
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+This is free software; see the GNU General Public Licence version 2 or
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+later for copying conditions. There is NO warranty.
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+");
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+}
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+
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+sub usage {
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+ printf _g(
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+"Usage: %s [<option> ...] [<action>]
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+
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+Options:
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+ --vendor <vendor> assume <vendor> is the current vendor
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+
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+Actions:
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+ --is <vendor> returns true if current vendor is <vendor>.
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+ --derives-from <vendor> returns true if current vendor derives from <vendor>.
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+ --query <field> print the content of the vendor-specific field.
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+ --help show this help message.
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+ --version show the version.
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+"), $progname;
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+}
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+
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+my ($vendor, $param, $action);
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+
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+while (@ARGV) {
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+ $_ = shift(@ARGV);
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+ if (m/^--vendor$/) {
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+ $vendor = shift(@ARGV);
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+ } elsif (m/^--(is|derives-from|query)$/) {
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+ badusage(_g("two commands specified: --%s and --%s"), $1, $action)
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+ if defined($action);
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+ $action = $1;
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+ $param = shift(@ARGV);
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+ } elsif (m/^-(h|-help)$/) {
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+ usage();
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+ exit 0;
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+ } elsif (m/^--version$/) {
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+ version();
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+ exit 0;
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+ } else {
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+ usageerr(_g("unknown option \`%s'"), $_);
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+ }
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+}
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+
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+# Uses $ENV{DEB_VENDOR} if set
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+$vendor = get_current_vendor() unless defined($vendor);
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+
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+my $info = get_vendor_info($vendor);
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+unless (defined($info)) {
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+ error(_g("vendor %s doesn't exist in /etc/dpkg/origins/"),
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+ $vendor || "default");
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+}
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+
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+if ($action eq 'is') {
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+
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+ exit(0) if lc($param) eq lc($info->{'Vendor'});
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+ exit(1);
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+
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+} elsif ($action eq 'derives-from') {
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+
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+ exit(0) if lc($param) eq lc($info->{'Vendor'});
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+ while (defined($info) && exists $info->{'Parent'}) {
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+ $info = get_vendor_info($info->{'Parent'});
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+ exit(0) if lc($param) eq lc($info->{'Vendor'});
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+ }
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+ exit(1);
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+
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+} elsif ($action eq 'query') {
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+
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+ if (exists $info->{$param}) {
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+ print $info->{$param} . "\n";
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+ exit(0);
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+ } else {
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+ exit(1);
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+ }
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+
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+}
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Raphael Hertzog