perl.req-from-meta


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#!/usr/bin/perl

use strict;
use warnings;

use JSON qw{ from_json };
use YAML qw{ Load      };

# slurp the file
my $path = shift;
open my $fh, '<', $path or die "can't open $path: $!";
my $data = do { local $/; <$fh> };
close $fh;

# parse meta - either yaml or json
my $meta = $path =~ /\.yml$/
    ? Load( $data )
    : from_json( $data );

# dump the requires with their version
my $requires = $meta->{requires};
foreach my $module ( sort keys %$requires ) {
    next if $module eq 'perl'; # minimum perl version
    my $version = $requires->{$module};
    if ( $version == 0 ) {
        print "perl($module)\n";
    } else {
        my $v = qx{ rpm --eval '%perl_convert_version $version' };
        print "perl($module) >= $v";
    }
}

exit;