#!/usr/bin/perl

# Copyright © 2019 Felix Lechner
#
# 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.

# The harness for Lintian's test suite.  For detailed information on
# the test suite layout and naming conventions, see t/tests/README.
# For more information about running tests, see
# doc/tutorial/Lintian/Tutorial/TestSuite.pod
#

use v5.20;
use warnings;
use utf8;
use autodie;

use Cwd;
use Getopt::Long;
use List::Util qw(all);
use Path::Tiny;
use Term::ANSIColor;

BEGIN {
    $ENV{'LINTIAN_TEST_INSTALLED'} = 'no'
      unless exists $ENV{'LINTIAN_TEST_INSTALLED'};

    my $cwd = Cwd::getcwd();

    if ($ENV{'LINTIAN_TEST_INSTALLED'} eq 'yes') {
        $ENV{'LINTIAN_ROOT'} = '/usr/share/lintian';
    } else {
        $ENV{'LINTIAN_ROOT'} = $cwd;
    }
}

use lib "$ENV{'LINTIAN_ROOT'}/lib";

use Test::Lintian::Output::Universal qw(parse_line order);

use constant EMPTY => q{};
use constant SPACE => q{ };
use constant COLON => q{:};
use constant LPARENS => q{(};
use constant RPARENS => q{)};
use constant NEWLINE => qq{\n};

Getopt::Long::Configure;
unless (
    Getopt::Long::GetOptions(
        'help|h'         => sub {usage(); exit;},
    )
) {
    usage();
    die;
}

# check arguments and options
die "Please use -h for usage information.\n"
  if scalar @ARGV != 1;

# get arguments
my ($tagspath) = @ARGV;

my @tagslines = path($tagspath)->lines_utf8;
chomp @tagslines;

my $joined = EMPTY;
$joined .= $_ . NEWLINE
  for reverse sort { order($a) cmp order($b) } @tagslines;

path($tagspath)->spew_utf8($joined);

exit;

sub usage {
    print <<"END";
Usage: $0 <tagfile>

    Sorts tagfile in the order preferred for universal tags.
END
    return;
}

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