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- #! /usr/bin/perl -w
-
- # 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, write to the Free Software
- # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- # USA.
-
- use Getopt::Long qw(:config gnu_getopt);
-
- sub rpm_cmp_versions {
- my ($evr1, $evr2) = @_;
-
- sub _rpm_cmp {
- my ($s1, $s2) = @_;
-
- return defined $s1 <=> defined $s2
- unless defined $s1 && defined $s2;
-
- my ($r, $x1, $x2);
- do {
- $s1 =~ s/^[^a-zA-Z0-9]+//;
- $s2 =~ s/^[^a-zA-Z0-9]+//;
- if ($s1 =~ /^\d/ || $s2 =~ /^\d/) {
- $s1 =~ s/^0*(\d*)//; $x1 = $1;
- $s2 =~ s/^0*(\d*)//; $x2 = $1;
- $r = length $x1 <=> length $x2 || $x1 cmp $x2;
- } else {
- $s1 =~ s/^([a-zA-Z]*)//; $x1 = $1;
- $s2 =~ s/^([a-zA-Z]*)//; $x2 = $1;
- return 0
- if $x1 eq '' && $x2 eq '';
- $r = $x1 cmp $x2;
- }
- } until $r;
- return $r;
- }
-
- my ($e1, $v1, $r1) = $evr1 =~ /^(?:(\d*):)?(.*?)(?:-([^-]*))?$/;
- my ($e2, $v2, $r2) = $evr2 =~ /^(?:(\d*):)?(.*?)(?:-([^-]*))?$/;
- my $r = _rpm_cmp($e1 || 0, $e2 || 0);
- $r = _rpm_cmp($v1, $v2)
- unless $r;
- $r = _rpm_cmp($r1, $r2)
- unless $r;
- return $r;
- }
-
- my $reorder = sub { return @_ };
- my $key = 0;
-
- GetOptions ("r|reverse" => sub { $reorder = sub { return reverse @_ } },
- "k|key=i" => \$key)
- or do {
- print STDERR "Usage\n";
- exit 1;
- };
-
- if ($key == 0) {
- # Sort by entire lines
- map { print } &$reorder(sort { rpm_cmp_versions($a, $b) } <>);
- } else {
- # Sort by field $key
- my @data = map { [(split)[$key-1], $_] } <>;
- map { print } &$reorder(map { $_->[1] }
- sort { rpm_cmp_versions($a->[0], $b->[0]) } @data);
- }
-