1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
#
# Sbuild.pm: library for sbuild
# Copyright (C) 2005 Ryan Murray <rmurray@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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# $Id: Sbuild.pm 1021 2006-09-29 22:06:18Z rleigh $
#
package Sbuild;
use Sbuild::Conf;
use strict;
use POSIX;
use FileHandle;
require Exporter;
@Sbuild::ISA = qw(Exporter);
@Sbuild::EXPORT = qw(version_less version_lesseq version_eq
version_compare binNMU_version);
my $opt_correct_version_cmp;
sub version_less {
my $v1 = shift;
my $v2 = shift;
return version_compare( $v1, "<<", $v2 );
}
sub version_lesseq {
my $v1 = shift;
my $v2 = shift;
return version_compare( $v1, "<=", $v2 );
}
sub version_eq {
my $v1 = shift;
my $v2 = shift;
return version_compare( $v1, "=", $v2 );
}
sub version_compare {
my $v1 = shift;
my $rel = shift;
my $v2 = shift;
if ($Sbuild::opt_correct_version_cmp) {
system "dpkg", "--compare-versions", $v1, $rel, $v2;
return $? == 0;
}
else {
if ($rel eq "=" || $rel eq "==") {
return $v1 eq $v2;
}
elsif ($rel eq "<<") {
return do_version_cmp( $v1, $v2 );
}
elsif ($rel eq "<=" || $rel eq "<") {
return $v1 eq $v2 || do_version_cmp( $v1, $v2 );
}
elsif ($rel eq ">=" || $rel eq ">") {
return !do_version_cmp( $v1, $v2 );
}
elsif ($rel eq ">>") {
return $v1 ne $v2 && !do_version_cmp( $v1, $v2 );
}
else {
warn "version_compare called with bad relation '$rel'\n";
return $v1 eq $2;
}
}
}
sub do_version_cmp {
my($versa, $versb) = @_;
my($epocha,$upstra,$reva);
my($epochb,$upstrb,$revb);
my($r);
($epocha,$upstra,$reva) = split_version($versa);
($epochb,$upstrb,$revb) = split_version($versb);
# compare epochs
return 1 if $epocha < $epochb;
return 0 if $epocha > $epochb;
# compare upstream versions
$r = version_cmp_single( $upstra, $upstrb );
return $r < 0 if $r != 0;
# compare Debian revisions
$r = version_cmp_single( $reva, $revb );
return $r < 0;
}
sub order {
for ($_[0])
{
/\~/ and return -1;
/\d/ and return 0;
/[a-z]/i and return ord;
return (ord) + 256;
}
}
sub version_cmp_single {
my($versa, $versb) = @_;
my($a,$b,$lena,$lenb,$va,$vb,$i);
for(;;) {
# compare non-numeric parts
$versa =~ /^([^\d]*)(.*)/; $a = $1; $versa = $2;
$versb =~ /^([^\d]*)(.*)/; $b = $1; $versb = $2;
$lena = length($a);
$lenb = length($b);
for( $i = 0; $i < $lena || $i < $lenb; ++$i ) {
$va = $i < $lena ? order(substr( $a, $i, 1 )) : 0;
$vb = $i < $lenb ? order(substr( $b, $i, 1 )) : 0;
return $va - $vb if $va != $vb;
}
# compare numeric parts
$versa =~ /^(\d*)(.*)/; $a = $1; $a ||= 0; $versa = $2;
$versb =~ /^(\d*)(.*)/; $b = $1; $b ||= 0; $versb = $2;
return $a - $b if $a != $b;
return 0 if !$versa && !$versb;
if (!$versa) {
return +1 if order(substr( $versb, 0, 1 ) ) < 0;
return -1;
}
if (!$versb) {
return -1 if order(substr( $versa, 0, 1 ) ) < 0;
return +1;
}
}
}
sub split_version {
my($vers) = @_;
my($epoch,$revision) = (0,"");
if ($vers =~ /^(\d+):(.*)/) {
$epoch = $1;
$vers = $2;
}
if ($vers =~ /(.*)-([^-]+)$/) {
$revision = $2;
$vers = $1;
}
return( $epoch, $vers, $revision );
}
sub binNMU_version {
my $v = shift;
my $binNMUver = shift;
return "$v+b$binNMUver";
}
1;
|