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package Module::CPANTS::Kwalitee::License;
use warnings;
use strict;
use File::Spec::Functions qw(catfile);
use Software::LicenseUtils;
our $VERSION = '0.96';
$VERSION = eval $VERSION; ## no critic
sub order { 100 }
##################################################################
# Analyse
##################################################################
sub analyse {
my $class=shift;
my $me=shift;
my $distdir=$me->distdir;
# check META.yml
my $yaml=$me->d->{meta_yml};
$me->d->{license} = '';
if ($yaml) {
if ($yaml->{license} and $yaml->{license} ne 'unknown') {
$me->d->{license_from_yaml} = $yaml->{license};
$me->d->{license} = $yaml->{license}.' defined in META.yml';
}
}
# use "files_array" to exclude files listed in "no_index".
my $files = $me->d->{files_array} || [];
# check if there's a LICEN[CS]E file
if (my ($file) = grep {$_ =~ /^(?:LICEN[CS]E|COPYING)$/} @$files) {
$me->d->{license} .= " defined in $file";
$me->d->{external_license_file}=$file;
}
# check pod
my %licenses;
foreach my $file (grep { /\.p(m|od|l)$/ } sort @$files ) {
my $path = catfile($distdir, $file);
next unless -r $path; # skip if not readable
open my $fh, '<', $path or next;
my $in_pod = 0;
my $pod = '';
my $pod_head = '';
my @possible_licenses;
my @unknown_license_texts;
while(<$fh>) {
if (/^=head\d\s+.*\b(?i:LICEN[CS]E|LICEN[CS]ING|COPYRIGHT|LEGAL)\b/) {
$me->d->{license_in_pod} = 1;
$me->d->{license} ||= "defined in POD ($file)";
if ($in_pod) {
my @guessed = Software::LicenseUtils->guess_license_from_pod("=head1 LICENSE\n$pod\n\n=cut\n");
if (@guessed) {
push @possible_licenses, @guessed;
} else {
push @unknown_license_texts, "$pod_head$pod";
}
}
$in_pod = 1;
$pod_head = $_;
$pod = '';
}
elsif (/^=(?:head\d\s+|cut)\b/) {
if ($in_pod) {
my @guessed = Software::LicenseUtils->guess_license_from_pod("=head1 LICENSE\n$pod\n\n=cut\n");
if (@guessed) {
push @possible_licenses, @guessed;
} else {
push @unknown_license_texts, "$pod_head$pod";
}
}
$in_pod = 0;
$pod = '';
}
elsif ($in_pod) {
$pod .= $_;
}
}
if ($pod) {
my @guessed = Software::LicenseUtils->guess_license_from_pod("=head1 LICENSE\n$pod\n\n=cut\n");
if (@guessed) {
push @possible_licenses, @guessed;
} else {
push @unknown_license_texts, "$pod_head$pod";
}
}
if (@possible_licenses) {
@possible_licenses = map { s/^Software::License:://; $_ } @possible_licenses;
push @{$licenses{$_} ||= []}, $file for @possible_licenses;
$me->d->{files_hash}{$file}{license} = join ',', @possible_licenses;
} else {
$me->d->{unknown_license_texts}{$file} = join "\n", @unknown_license_texts if @unknown_license_texts;
}
}
if (%licenses) {
$me->d->{licenses} = \%licenses;
my @possible_licenses = keys %licenses;
if (@possible_licenses == 1) {
my ($type) = @possible_licenses;
$me->d->{license_type} = $type;
$me->d->{license_file} = join ',', @{$licenses{$type}};
}
}
return;
}
##################################################################
# Kwalitee Indicators
##################################################################
sub kwalitee_indicators{
return [
{
name=>'meta_yml_has_license',
error=>q{This distribution does not have a license defined in META.yml.},
remedy=>q{Define the license if you are using in Build.PL. If you are using MakeMaker (Makefile.PL) you should upgrade to ExtUtils::MakeMaker version 6.31.},
is_extra=>1,
code=>sub {
my $d=shift;
my $yaml=$d->{meta_yml};
($yaml->{license} and $yaml->{license} ne 'unknown') ? 1 : 0 },
details=>sub {
my $d = shift;
my $yaml = $d->{meta_yml};
return "No META.yml." unless $yaml;
return "No license was found in META.yml." unless $yaml->{license};
return "Unknown license was found in META.yml.";
},
},
{
name=>'has_human_readable_license',
error=>q{This distribution does not have a license defined in the documentation or in a file called LICENSE},
remedy=>q{Add a section called "LICENSE" to the documentation, or add a file named LICENSE to the distribution.},
code=>sub {
my $d = shift;
return $d->{external_license_file} || $d->{license_in_pod} ? 1 : 0;
},
details=>sub {
my $d = shift;
return "Neither LICENSE file nor LICENSE section in pod was found.";
},
},
{
name=>'has_separate_license_file',
error=>q{This distribution does not have a LICENSE or LICENCE file in its root directory.},
remedy=>q{This is not a critical issue. Currently mainly informative for the CPANTS authors. It might be removed later.},
is_experimental=>1,
code=>sub { shift->{external_license_file} ? 1 : 0 },
details=>sub {
my $d = shift;
return "LICENSE file was found.";
},
},
{
name=>'has_license_in_source_file',
error=>q{Does not have license information in any of its source files},
remedy=>q{Add =head1 LICENSE and the text of the license to the main module in your code.},
code=>sub {
my $d = shift;
return $d->{license_in_pod} ? 1 : 0;
},
details=>sub {
my $d = shift;
return "LICENSE section was not found in the pod.";
},
},
{
name=>'has_known_license_in_source_file',
error=>q{Does not have license information in any of its source files, or the information is not recognized by Software::License},
remedy=>q{Add =head1 LICENSE and/or the proper text of the well-known license to the main module in your code.},
is_extra => 1,
code=>sub {
my $d = shift;
return 0 unless $d->{license_in_pod};
my @files_with_licenses = grep {$d->{files_hash}{$_}{license}} keys %{$d->{files_hash}};
return @files_with_licenses ? 1 : 0;
},
details=>sub {
my $d = shift;
return "LICENSE section was not found in the pod, or the license information was not recognized by Software::License.";
},
},
];
}
q{Favourite record of the moment:
Lili Allen - Allright, still};
__END__
=encoding UTF-8
=head1 NAME
Module::CPANTS::Kwalitee::License - Checks if there is a license
=head1 SYNOPSIS
Checks if the distribution specifies a license.
=head1 DESCRIPTION
=head2 Methods
=head3 order
Defines the order in which Kwalitee tests should be run.
Returns C<100>.
=head3 analyse
C<MCK::License> checks if there's a C<license> field C<META.yml>. Additionally, it looks for a file called LICENSE and a POD section named LICENSE
=head3 kwalitee_indicators
Returns the Kwalitee Indicators datastructure.
=over
=item * meta_yml_has_license
=item * has_known_license_in_source_file
=item * has_license_in_source_file
=item * has_human_readable_license
=item * has_separate_license_file
=back
=head2 License information
Places where the license information is taken from:
Has a LICENSE file file_license 1|0
Content of LICENSE file matches License X from Software::License
License in META.yml
License in META.yml matches one of the known licenses
License in source files recognized by Software::LicenseUtils
For each file keep where is was it recognized.
Has license or copyright entry in pod (that might not be recognized by Software::LicenseUtils)
# has_license
=head1 SEE ALSO
L<Module::CPANTS::Analyse>
=head1 AUTHOR
L<Thomas Klausner|https://metacpan.org/author/domm>
and L<Gábor Szabó|https://metacpan.org/author/szabgab>
=head1 COPYRIGHT AND LICENSE
Copyright © 2003–2009 L<Thomas Klausner|https://metacpan.org/author/domm>
Copyright © 2006–2008 L<Gábor Szabó|https://metacpan.org/author/szabgab>
You may use and distribute this module according to the same terms
that Perl is distributed under.
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