/usr/share/perl5/CPAN/Meta/Check.pm is in libcpan-meta-check-perl 0.009-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | package CPAN::Meta::Check;
$CPAN::Meta::Check::VERSION = '0.009';
use strict;
use warnings;
use Exporter 5.57 'import';
our @EXPORT = qw//;
our @EXPORT_OK = qw/check_requirements requirements_for verify_dependencies/;
our %EXPORT_TAGS = (all => [ @EXPORT, @EXPORT_OK ] );
use CPAN::Meta::Requirements 2.120920;
use Module::Metadata;
sub _check_dep {
my ($reqs, $module, $dirs) = @_;
$module eq 'perl' and return ($reqs->accepts_module($module, $]) ? () : sprintf "Your Perl (%s) is not in the range '%s'", $], $reqs->requirements_for_module($module));
my $metadata = Module::Metadata->new_from_module($module, inc => $dirs);
return "Module '$module' is not installed" if not defined $metadata;
my $version = eval { $metadata->version };
return "Missing version info for module '$module'" if $reqs->requirements_for_module($module) and not $version;
return sprintf 'Installed version (%s) of %s is not in range \'%s\'', $version, $module, $reqs->requirements_for_module($module) if not $reqs->accepts_module($module, $version || 0);
return;
}
sub _check_conflict {
my ($reqs, $module, $dirs) = @_;
my $metadata = Module::Metadata->new_from_module($module, inc => $dirs);
return if not defined $metadata;
my $version = eval { $metadata->version };
return "Missing version info for module '$module'" if not $version;
return sprintf 'Installed version (%s) of %s is in range \'%s\'', $version, $module, $reqs->requirements_for_module($module) if $reqs->accepts_module($module, $version);
return;
}
sub requirements_for {
my ($meta, $phases, $type) = @_;
my $prereqs = ref($meta) eq 'CPAN::Meta' ? $meta->effective_prereqs : $meta;
return $prereqs->merged_requirements(ref($phases) ? $phases : [ $phases ], [ $type ]);
}
sub check_requirements {
my ($reqs, $type, $dirs) = @_;
my %ret;
if ($type ne 'conflicts') {
for my $module ($reqs->required_modules) {
$ret{$module} = _check_dep($reqs, $module, $dirs);
}
}
else {
for my $module ($reqs->required_modules) {
$ret{$module} = _check_conflict($reqs, $module, $dirs);
}
}
return \%ret;
}
sub verify_dependencies {
my ($meta, $phases, $type, $dirs) = @_;
my $reqs = requirements_for($meta, $phases, $type);
my $issues = check_requirements($reqs, $type, $dirs);
return grep { defined } values %{ $issues };
}
# vi:noet:sts=2:sw=2:ts=2
1;
#ABSTRACT: Verify requirements in a CPAN::Meta object
__END__
=pod
=encoding UTF-8
=head1 NAME
CPAN::Meta::Check - Verify requirements in a CPAN::Meta object
=head1 VERSION
version 0.009
=head1 SYNOPSIS
warn "$_\n" for verify_dependencies($meta, [qw/runtime build test/], 'requires');
=head1 DESCRIPTION
This module verifies if requirements described in a CPAN::Meta object are present.
=head1 FUNCTIONS
=head2 check_requirements($reqs, $type, $incdirs)
This function checks if all dependencies in C<$reqs> (a L<CPAN::Meta::Requirements|CPAN::Meta::Requirements> object) are met, taking into account that 'conflicts' dependencies have to be checked in reverse. It returns a hash with the modules as keys and any problems as values; the value for a successfully found module will be undef. Modules are searched for in C<@$incdirs>, defaulting to C<@INC>.
=head2 verify_dependencies($meta, $phases, $types, $incdirs)
Check all requirements in C<$meta> for phases C<$phases> and type C<$type>. Modules are searched for in C<@$incdirs>, defaulting to C<@INC>. C<$meta> should be a L<CPAN::Meta::Prereqs> or L<CPAN::Meta> object.
=head2 requirements_for($meta, $phases, $types)
B<< This function is deprecated and may be removed at some point in the future, please use CPAN::Meta::Prereqs->merged_requirements instead. >>
This function returns a unified L<CPAN::Meta::Requirements|CPAN::Meta::Requirements> object for all C<$type> requirements for C<$phases>. C<$phases> may be either one (scalar) value or an arrayref of valid values as defined by the L<CPAN::Meta spec|CPAN::Meta::Spec>. C<$type> must be a relationship as defined by the same spec. C<$meta> should be a L<CPAN::Meta::Prereqs> or L<CPAN::Meta> object.
=head1 SEE ALSO
=over 4
=item * L<Test::CheckDeps|Test::CheckDeps>
=item * L<CPAN::Meta|CPAN::Meta>
=back
=head1 AUTHOR
Leon Timmermans <leont@cpan.org>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2012 by Leon Timmermans.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|