77 lines
2.1 KiB
Perl
77 lines
2.1 KiB
Perl
#! /usr/bin/perl -w
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (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,
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# USA.
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use Getopt::Long qw(:config gnu_getopt);
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sub rpm_cmp_versions {
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my ($evr1, $evr2) = @_;
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sub _rpm_cmp {
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my ($s1, $s2) = @_;
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return defined $s1 <=> defined $s2
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unless defined $s1 && defined $s2;
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my ($r, $x1, $x2);
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do {
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$s1 =~ s/^[^a-zA-Z0-9]+//;
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$s2 =~ s/^[^a-zA-Z0-9]+//;
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if ($s1 =~ /^\d/ || $s2 =~ /^\d/) {
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$s1 =~ s/^0*(\d*)//; $x1 = $1;
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$s2 =~ s/^0*(\d*)//; $x2 = $1;
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$r = length $x1 <=> length $x2 || $x1 cmp $x2;
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} else {
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$s1 =~ s/^([a-zA-Z]*)//; $x1 = $1;
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$s2 =~ s/^([a-zA-Z]*)//; $x2 = $1;
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return 0
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if $x1 eq '' && $x2 eq '';
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$r = $x1 cmp $x2;
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}
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} until $r;
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return $r;
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}
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my ($e1, $v1, $r1) = $evr1 =~ /^(?:(\d*):)?(.*?)(?:-([^-]*))?$/;
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my ($e2, $v2, $r2) = $evr2 =~ /^(?:(\d*):)?(.*?)(?:-([^-]*))?$/;
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my $r = _rpm_cmp($e1 || 0, $e2 || 0);
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$r = _rpm_cmp($v1, $v2)
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unless $r;
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$r = _rpm_cmp($r1, $r2)
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unless $r;
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return $r;
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}
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my $reorder = sub { return @_ };
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my $key = 0;
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GetOptions ("r|reverse" => sub { $reorder = sub { return reverse @_ } },
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"k|key=i" => \$key)
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or do {
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print STDERR "Usage\n";
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exit 1;
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};
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if ($key == 0) {
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# Sort by entire lines
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map { print } &$reorder(sort { rpm_cmp_versions($a, $b) } <>);
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} else {
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# Sort by field $key
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my @data = map { [(split)[$key-1], $_] } <>;
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map { print } &$reorder(map { $_->[1] }
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sort { rpm_cmp_versions($a->[0], $b->[0]) } @data);
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}
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