#!/usr/bin/perl

use strict;

use warnings;

use utf8;

use RPM2;

for my $rpm_file (@ARGV) {

    my $package = RPM2->open_package($rpm_file)

        or die q{Could not open `} . $rpm_file . q{'.};

    my $package_name = $package->tag('NAME');

    my $package_version = $package->tag('VERSION');

    my $module_name = $package_name;

    $module_name =~ s/^([^-]+)-(.*)/$1($2)/;

    $module_name =~ s/-/::/g;

    my @names = $package->tag('PROVIDENAME');

    my @flags = $package->tag('PROVIDEFLAGS');

    my @versions = $package->tag('PROVIDEVERSION');

    if (!($#names == $#flags) && ($#names == $#versions)) {

        die (q{Inconsistent number of provides names, flags, and versions in `}

            . $rpm_file . q{'.});

    }

    my $found = 0;

    for my $name (@names) {

        my $flag = shift @flags;

        my $version = shift @versions;

        if ($name eq $module_name) {

            $found = 1;

            if (($flag & 0x8) && (($flag & (0x2+0x4)) == 0)) {

                if (!($package_version eq $version)) {

                    print $rpm_file . q{: Package version `} .

                        $package_version . q{' differs from `} .

                        $module_name . q{' module version `} .

                        $version . q{'.} . "\n";

                }

                last;

            } else {

                print $rpm_file . q{: `} . $module_name .

                    q{' in list of provides is not qualified (};

                printf '0x%x', $flag;

                print q{) as equaled.} . "\n";

            }

        }

    }

    if ($found == 0) {

        print $rpm_file . q{: missing `} . $module_name .

            q{' in list of provides.} . "\n";

    }

}

__END__

=encoding utf8

=head1 NAME

checkpackageversion - Check a RPM package version matches main Perl module

version

=head1 SYNOPSIS

checkpackageversion RPM_PACKAGE...

It opens each RPM_PACKAGE, guesses a main Perl module from package name, finds

it in list of provides (e.g. perl-Foo-Bar → perl(Foo::Bar) and compares

versions. It reports any irregularities to standard output.

Petr Písař <ppisar@redhat.com>

=head1 COPYING

Copyright (C) 2011  Petr Písař <ppisar@redhat.com>

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 3 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, see <http://www.gnu.org/licenses/>.

=cut