1RPM::VersionCompare(3)User Contributed Perl DocumentationRPM::VersionCompare(3)
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NAME

6       RPM::VersionCompare - Compare RPM version strings
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SYNOPSIS

9         use RPM::VersionCompare;
10         RPM::VersionCompare::rpmvercmp('1.0', '0.9');
11         RPM::VersionCompare::labelSplit('4:5.12.0-140');
12         RPM::VersionCompare::labelCompare('4:5.12.0-140', '5.14.1');
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DESCRIPTION

15       This module provides functions to compare RPM version strings. No
16       function is exported by default. If possible, calls are passed to
17       native librpm library.  Otherwise Python extension provided with RPM
18       sources is re-implemented.
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20       labelCompare(LABEL1, LABEL2)
21               Compares two version strings including epoch and release.
22               Return 1 if LABEL1 is bigger, return 0 if LABEL1 equals to
23               LABEL2, return -1 otherwise.
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25       labelSplit(LABEL)
26               Splits a version LABEL (e.g. "4:5.12.0-140") into epoch,
27               version and release. The epoch and release parts are optional.
28               If they miss, the separator (collon for epoch, hyphen for
29               release) should miss too and their implicit value is 0. See
30               <http://www.rpm.org/wiki/PackagerDocs/Dependencies#RequiringPackages>
31               for specification.
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33               If LABEL is in correct format, array (EPOCH, VERSION, RELEASE)
34               will be returned. Otherwise undef is returned.
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36       rpmvercmp(VERSION1, VERSION2)
37               Compares two RPM version strings by calling librpm function
38               rpmvercmp(). It does not support strings with RPM epoch or
39               release. (Use labelCompare() if you need to support epoch or
40               release.) It will return 1 if VERSION1 string is bigger, 0 if
41               strings are equal, and -1 if VERSION1 is lesser.
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AUTHOR

44       Petr Písař <ppisar@redhat.com>
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COPYING

47       Copyright (C) 2011  Petr Písař <ppisar@redhat.com>
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49       This program is free software: you can redistribute it and/or modify it
50       under the terms of the GNU General Public License as published by the
51       Free Software Foundation, either version 3 of the License, or (at your
52       option) any later version.
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54       This program is distributed in the hope that it will be useful, but
55       WITHOUT ANY WARRANTY; without even the implied warranty of
56       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
57       General Public License for more details.
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59       You should have received a copy of the GNU General Public License along
60       with this program.  If not, see <http://www.gnu.org/licenses/>.
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64perl v5.32.1                      2021-01-27            RPM::VersionCompare(3)
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