X-Git-Url: http://git.home-dn.net/?p=manu%2FRT-Extension-SearchResults-XLS.git;a=blobdiff_plain;f=inc%2FModule%2FInstall%2FMetadata.pm;h=cfe45b3f0ab72dc6679a369cadecc4c08dd51874;hp=6c80832b6f3a2a90a301f971b7f78846592250ac;hb=47c2ccb6812acb71dff5fbca2e8f272ab395f8d1;hpb=62c1f305415dd098a43e3ea4b9f84cb87ff80c67

diff --git a/inc/Module/Install/Metadata.pm b/inc/Module/Install/Metadata.pm
index 6c80832..cfe45b3 100644
--- a/inc/Module/Install/Metadata.pm
+++ b/inc/Module/Install/Metadata.pm
@@ -2,314 +2,714 @@
 package Module::Install::Metadata;
 
 use strict 'vars';
-use Module::Install::Base;
+use Module::Install::Base ();
 
-use vars qw{$VERSION $ISCORE @ISA};
+use vars qw{$VERSION @ISA $ISCORE};
 BEGIN {
-	$VERSION = '0.64';
+	$VERSION = '1.00';
+	@ISA     = 'Module::Install::Base';
 	$ISCORE  = 1;
-	@ISA     = qw{Module::Install::Base};
 }
 
+my @boolean_keys = qw{
+	sign
+};
+
 my @scalar_keys = qw{
-    name module_name abstract author version license
-    distribution_type perl_version tests
+	name
+	module_name
+	abstract
+	version
+	distribution_type
+	tests
+	installdirs
 };
 
 my @tuple_keys = qw{
-    build_requires requires recommends bundles
+	configure_requires
+	build_requires
+	requires
+	recommends
+	bundles
+	resources
 };
 
-sub Meta            { shift        }
-sub Meta_ScalarKeys { @scalar_keys }
-sub Meta_TupleKeys  { @tuple_keys  }
-
-foreach my $key (@scalar_keys) {
-    *$key = sub {
-        my $self = shift;
-        return $self->{values}{$key} if defined wantarray and !@_;
-        $self->{values}{$key} = shift;
-        return $self;
-    };
-}
-
-foreach my $key (@tuple_keys) {
-    *$key = sub {
-        my $self = shift;
-        return $self->{values}{$key} unless @_;
-
-        my @rv;
-        while (@_) {
-            my $module = shift or last;
-            my $version = shift || 0;
-            if ( $module eq 'perl' ) {
-                $version =~ s{^(\d+)\.(\d+)\.(\d+)}
-                             {$1 + $2/1_000 + $3/1_000_000}e;
-                $self->perl_version($version);
-                next;
-            }
-            my $rv = [ $module, $version ];
-            push @rv, $rv;
-        }
-        push @{ $self->{values}{$key} }, @rv;
-        @rv;
-    };
-}
-
-sub sign {
-    my $self = shift;
-    return $self->{'values'}{'sign'} if defined wantarray and !@_;
-    $self->{'values'}{'sign'} = ( @_ ? $_[0] : 1 );
-    return $self;
+my @resource_keys = qw{
+	homepage
+	bugtracker
+	repository
+};
+
+my @array_keys = qw{
+	keywords
+	author
+};
+
+*authors = \&author;
+
+sub Meta              { shift          }
+sub Meta_BooleanKeys  { @boolean_keys  }
+sub Meta_ScalarKeys   { @scalar_keys   }
+sub Meta_TupleKeys    { @tuple_keys    }
+sub Meta_ResourceKeys { @resource_keys }
+sub Meta_ArrayKeys    { @array_keys    }
+
+foreach my $key ( @boolean_keys ) {
+	*$key = sub {
+		my $self = shift;
+		if ( defined wantarray and not @_ ) {
+			return $self->{values}->{$key};
+		}
+		$self->{values}->{$key} = ( @_ ? $_[0] : 1 );
+		return $self;
+	};
+}
+
+foreach my $key ( @scalar_keys ) {
+	*$key = sub {
+		my $self = shift;
+		return $self->{values}->{$key} if defined wantarray and !@_;
+		$self->{values}->{$key} = shift;
+		return $self;
+	};
+}
+
+foreach my $key ( @array_keys ) {
+	*$key = sub {
+		my $self = shift;
+		return $self->{values}->{$key} if defined wantarray and !@_;
+		$self->{values}->{$key} ||= [];
+		push @{$self->{values}->{$key}}, @_;
+		return $self;
+	};
+}
+
+foreach my $key ( @resource_keys ) {
+	*$key = sub {
+		my $self = shift;
+		unless ( @_ ) {
+			return () unless $self->{values}->{resources};
+			return map  { $_->[1] }
+			       grep { $_->[0] eq $key }
+			       @{ $self->{values}->{resources} };
+		}
+		return $self->{values}->{resources}->{$key} unless @_;
+		my $uri = shift or die(
+			"Did not provide a value to $key()"
+		);
+		$self->resources( $key => $uri );
+		return 1;
+	};
+}
+
+foreach my $key ( grep { $_ ne "resources" } @tuple_keys) {
+	*$key = sub {
+		my $self = shift;
+		return $self->{values}->{$key} unless @_;
+		my @added;
+		while ( @_ ) {
+			my $module  = shift or last;
+			my $version = shift || 0;
+			push @added, [ $module, $version ];
+		}
+		push @{ $self->{values}->{$key} }, @added;
+		return map {@$_} @added;
+	};
 }
 
+# Resource handling
+my %lc_resource = map { $_ => 1 } qw{
+	homepage
+	license
+	bugtracker
+	repository
+};
+
+sub resources {
+	my $self = shift;
+	while ( @_ ) {
+		my $name  = shift or last;
+		my $value = shift or next;
+		if ( $name eq lc $name and ! $lc_resource{$name} ) {
+			die("Unsupported reserved lowercase resource '$name'");
+		}
+		$self->{values}->{resources} ||= [];
+		push @{ $self->{values}->{resources} }, [ $name, $value ];
+	}
+	$self->{values}->{resources};
+}
+
+# Aliases for build_requires that will have alternative
+# meanings in some future version of META.yml.
+sub test_requires     { shift->build_requires(@_) }
+sub install_requires  { shift->build_requires(@_) }
+
+# Aliases for installdirs options
+sub install_as_core   { $_[0]->installdirs('perl')   }
+sub install_as_cpan   { $_[0]->installdirs('site')   }
+sub install_as_site   { $_[0]->installdirs('site')   }
+sub install_as_vendor { $_[0]->installdirs('vendor') }
+
 sub dynamic_config {
 	my $self = shift;
 	unless ( @_ ) {
-		warn "You MUST provide an explicit true/false value to dynamic_config, skipping\n";
+		warn "You MUST provide an explicit true/false value to dynamic_config\n";
 		return $self;
 	}
-	$self->{'values'}{'dynamic_config'} = $_[0] ? 1 : 0;
-	return $self;
+	$self->{values}->{dynamic_config} = $_[0] ? 1 : 0;
+	return 1;
 }
 
-sub all_from {
-    my ( $self, $file ) = @_;
-
-    unless ( defined($file) ) {
-        my $name = $self->name
-            or die "all_from called with no args without setting name() first";
-        $file = join('/', 'lib', split(/-/, $name)) . '.pm';
-        $file =~ s{.*/}{} unless -e $file;
-        die "all_from: cannot find $file from $name" unless -e $file;
-    }
+sub perl_version {
+	my $self = shift;
+	return $self->{values}->{perl_version} unless @_;
+	my $version = shift or die(
+		"Did not provide a value to perl_version()"
+	);
 
-    $self->version_from($file)      unless $self->version;
-    $self->perl_version_from($file) unless $self->perl_version;
+	# Normalize the version
+	$version = $self->_perl_version($version);
 
-    # The remaining probes read from POD sections; if the file
-    # has an accompanying .pod, use that instead
-    my $pod = $file;
-    if ( $pod =~ s/\.pm$/.pod/i and -e $pod ) {
-        $file = $pod;
-    }
+	# We don't support the reall old versions
+	unless ( $version >= 5.005 ) {
+		die "Module::Install only supports 5.005 or newer (use ExtUtils::MakeMaker)\n";
+	}
 
-    $self->author_from($file)   unless $self->author;
-    $self->license_from($file)  unless $self->license;
-    $self->abstract_from($file) unless $self->abstract;
+	$self->{values}->{perl_version} = $version;
 }
 
-sub provides {
-    my $self     = shift;
-    my $provides = ( $self->{values}{provides} ||= {} );
-    %$provides = (%$provides, @_) if @_;
-    return $provides;
-}
+sub all_from {
+	my ( $self, $file ) = @_;
+
+	unless ( defined($file) ) {
+		my $name = $self->name or die(
+			"all_from called with no args without setting name() first"
+		);
+		$file = join('/', 'lib', split(/-/, $name)) . '.pm';
+		$file =~ s{.*/}{} unless -e $file;
+		unless ( -e $file ) {
+			die("all_from cannot find $file from $name");
+		}
+	}
+	unless ( -f $file ) {
+		die("The path '$file' does not exist, or is not a file");
+	}
 
-sub auto_provides {
-    my $self = shift;
-    return $self unless $self->is_admin;
+	$self->{values}{all_from} = $file;
 
-    unless (-e 'MANIFEST') {
-        warn "Cannot deduce auto_provides without a MANIFEST, skipping\n";
-        return $self;
-    }
+	# Some methods pull from POD instead of code.
+	# If there is a matching .pod, use that instead
+	my $pod = $file;
+	$pod =~ s/\.pm$/.pod/i;
+	$pod = $file unless -e $pod;
 
-    # Avoid spurious warnings as we are not checking manifest here.
+	# Pull the different values
+	$self->name_from($file)         unless $self->name;
+	$self->version_from($file)      unless $self->version;
+	$self->perl_version_from($file) unless $self->perl_version;
+	$self->author_from($pod)        unless @{$self->author || []};
+	$self->license_from($pod)       unless $self->license;
+	$self->abstract_from($pod)      unless $self->abstract;
 
-    local $SIG{__WARN__} = sub {1};
-    require ExtUtils::Manifest;
-    local *ExtUtils::Manifest::manicheck = sub { return };
+	return 1;
+}
 
-    require Module::Build;
-    my $build = Module::Build->new(
-        dist_name    => $self->name,
-        dist_version => $self->version,
-        license      => $self->license,
-    );
-    $self->provides(%{ $build->find_dist_packages || {} });
+sub provides {
+	my $self     = shift;
+	my $provides = ( $self->{values}->{provides} ||= {} );
+	%$provides = (%$provides, @_) if @_;
+	return $provides;
+}
+
+sub auto_provides {
+	my $self = shift;
+	return $self unless $self->is_admin;
+	unless (-e 'MANIFEST') {
+		warn "Cannot deduce auto_provides without a MANIFEST, skipping\n";
+		return $self;
+	}
+	# Avoid spurious warnings as we are not checking manifest here.
+	local $SIG{__WARN__} = sub {1};
+	require ExtUtils::Manifest;
+	local *ExtUtils::Manifest::manicheck = sub { return };
+
+	require Module::Build;
+	my $build = Module::Build->new(
+		dist_name    => $self->name,
+		dist_version => $self->version,
+		license      => $self->license,
+	);
+	$self->provides( %{ $build->find_dist_packages || {} } );
 }
 
 sub feature {
-    my $self     = shift;
-    my $name     = shift;
-    my $features = ( $self->{values}{features} ||= [] );
-
-    my $mods;
-
-    if ( @_ == 1 and ref( $_[0] ) ) {
-        # The user used ->feature like ->features by passing in the second
-        # argument as a reference.  Accomodate for that.
-        $mods = $_[0];
-    } else {
-        $mods = \@_;
-    }
+	my $self     = shift;
+	my $name     = shift;
+	my $features = ( $self->{values}->{features} ||= [] );
+	my $mods;
+
+	if ( @_ == 1 and ref( $_[0] ) ) {
+		# The user used ->feature like ->features by passing in the second
+		# argument as a reference.  Accomodate for that.
+		$mods = $_[0];
+	} else {
+		$mods = \@_;
+	}
 
-    my $count = 0;
-    push @$features, (
-        $name => [
-            map {
-                ref($_) ? ( ref($_) eq 'HASH' ) ? %$_
-                                                : @$_
-                        : $_
-            } @$mods
-        ]
-    );
+	my $count = 0;
+	push @$features, (
+		$name => [
+			map {
+				ref($_) ? ( ref($_) eq 'HASH' ) ? %$_ : @$_ : $_
+			} @$mods
+		]
+	);
 
-    return @$features;
+	return @$features;
 }
 
 sub features {
-    my $self = shift;
-    while ( my ( $name, $mods ) = splice( @_, 0, 2 ) ) {
-        $self->feature( $name, @$mods );
-    }
-    return $self->{values}->{features}
-    	? @{ $self->{values}->{features} }
-    	: ();
+	my $self = shift;
+	while ( my ( $name, $mods ) = splice( @_, 0, 2 ) ) {
+		$self->feature( $name, @$mods );
+	}
+	return $self->{values}->{features}
+		? @{ $self->{values}->{features} }
+		: ();
 }
 
 sub no_index {
-    my $self = shift;
-    my $type = shift;
-    push @{ $self->{values}{no_index}{$type} }, @_ if $type;
-    return $self->{values}{no_index};
+	my $self = shift;
+	my $type = shift;
+	push @{ $self->{values}->{no_index}->{$type} }, @_ if $type;
+	return $self->{values}->{no_index};
 }
 
 sub read {
-    my $self = shift;
-    $self->include_deps( 'YAML', 0 );
-
-    require YAML;
-    my $data = YAML::LoadFile('META.yml');
-
-    # Call methods explicitly in case user has already set some values.
-    while ( my ( $key, $value ) = each %$data ) {
-        next unless $self->can($key);
-        if ( ref $value eq 'HASH' ) {
-            while ( my ( $module, $version ) = each %$value ) {
-                $self->can($key)->($self, $module => $version );
-            }
-        }
-        else {
-            $self->can($key)->($self, $value);
-        }
-    }
-    return $self;
+	my $self = shift;
+	$self->include_deps( 'YAML::Tiny', 0 );
+
+	require YAML::Tiny;
+	my $data = YAML::Tiny::LoadFile('META.yml');
+
+	# Call methods explicitly in case user has already set some values.
+	while ( my ( $key, $value ) = each %$data ) {
+		next unless $self->can($key);
+		if ( ref $value eq 'HASH' ) {
+			while ( my ( $module, $version ) = each %$value ) {
+				$self->can($key)->($self, $module => $version );
+			}
+		} else {
+			$self->can($key)->($self, $value);
+		}
+	}
+	return $self;
 }
 
 sub write {
-    my $self = shift;
-    return $self unless $self->is_admin;
-    $self->admin->write_meta;
-    return $self;
+	my $self = shift;
+	return $self unless $self->is_admin;
+	$self->admin->write_meta;
+	return $self;
 }
 
 sub version_from {
-    my ( $self, $file ) = @_;
-    require ExtUtils::MM_Unix;
-    $self->version( ExtUtils::MM_Unix->parse_version($file) );
+	require ExtUtils::MM_Unix;
+	my ( $self, $file ) = @_;
+	$self->version( ExtUtils::MM_Unix->parse_version($file) );
+
+	# for version integrity check
+	$self->makemaker_args( VERSION_FROM => $file );
 }
 
 sub abstract_from {
-    my ( $self, $file ) = @_;
-    require ExtUtils::MM_Unix;
-    $self->abstract(
-        bless(
-            { DISTNAME => $self->name },
-            'ExtUtils::MM_Unix'
-        )->parse_abstract($file)
-     );
+	require ExtUtils::MM_Unix;
+	my ( $self, $file ) = @_;
+	$self->abstract(
+		bless(
+			{ DISTNAME => $self->name },
+			'ExtUtils::MM_Unix'
+		)->parse_abstract($file)
+	);
 }
 
-sub _slurp {
-    my ( $self, $file ) = @_;
+# Add both distribution and module name
+sub name_from {
+	my ($self, $file) = @_;
+	if (
+		Module::Install::_read($file) =~ m/
+		^ \s*
+		package \s*
+		([\w:]+)
+		\s* ;
+		/ixms
+	) {
+		my ($name, $module_name) = ($1, $1);
+		$name =~ s{::}{-}g;
+		$self->name($name);
+		unless ( $self->module_name ) {
+			$self->module_name($module_name);
+		}
+	} else {
+		die("Cannot determine name from $file\n");
+	}
+}
 
-    local *FH;
-    open FH, "< $file" or die "Cannot open $file.pod: $!";
-    do { local $/; <FH> };
+sub _extract_perl_version {
+	if (
+		$_[0] =~ m/
+		^\s*
+		(?:use|require) \s*
+		v?
+		([\d_\.]+)
+		\s* ;
+		/ixms
+	) {
+		my $perl_version = $1;
+		$perl_version =~ s{_}{}g;
+		return $perl_version;
+	} else {
+		return;
+	}
 }
 
 sub perl_version_from {
-    my ( $self, $file ) = @_;
-
-    if (
-        $self->_slurp($file) =~ m/
-        ^
-        use \s*
-        v?
-        ([\d_\.]+)
-        \s* ;
-    /ixms
-      )
-    {
-        my $v = $1;
-        $v =~ s{_}{}g;
-        $self->perl_version($1);
-    }
-    else {
-        warn "Cannot determine perl version info from $file\n";
-        return;
-    }
+	my $self = shift;
+	my $perl_version=_extract_perl_version(Module::Install::_read($_[0]));
+	if ($perl_version) {
+		$self->perl_version($perl_version);
+	} else {
+		warn "Cannot determine perl version info from $_[0]\n";
+		return;
+	}
 }
 
 sub author_from {
-    my ( $self, $file ) = @_;
-    my $content = $self->_slurp($file);
-    if ($content =~ m/
-        =head \d \s+ (?:authors?)\b \s*
-        ([^\n]*)
-        |
-        =head \d \s+ (?:licen[cs]e|licensing|copyright|legal)\b \s*
-        .*? copyright .*? \d\d\d[\d.]+ \s* (?:\bby\b)? \s*
-        ([^\n]*)
-    /ixms) {
-        my $author = $1 || $2;
-        $author =~ s{E<lt>}{<}g;
-        $author =~ s{E<gt>}{>}g;
-        $self->author($author); 
-    }
-    else {
-        warn "Cannot determine author info from $file\n";
-    }
+	my $self    = shift;
+	my $content = Module::Install::_read($_[0]);
+	if ($content =~ m/
+		=head \d \s+ (?:authors?)\b \s*
+		([^\n]*)
+		|
+		=head \d \s+ (?:licen[cs]e|licensing|copyright|legal)\b \s*
+		.*? copyright .*? \d\d\d[\d.]+ \s* (?:\bby\b)? \s*
+		([^\n]*)
+	/ixms) {
+		my $author = $1 || $2;
+
+		# XXX: ugly but should work anyway...
+		if (eval "require Pod::Escapes; 1") {
+			# Pod::Escapes has a mapping table.
+			# It's in core of perl >= 5.9.3, and should be installed
+			# as one of the Pod::Simple's prereqs, which is a prereq
+			# of Pod::Text 3.x (see also below).
+			$author =~ s{ E<( (\d+) | ([A-Za-z]+) )> }
+			{
+				defined $2
+				? chr($2)
+				: defined $Pod::Escapes::Name2character_number{$1}
+				? chr($Pod::Escapes::Name2character_number{$1})
+				: do {
+					warn "Unknown escape: E<$1>";
+					"E<$1>";
+				};
+			}gex;
+		}
+		elsif (eval "require Pod::Text; 1" && $Pod::Text::VERSION < 3) {
+			# Pod::Text < 3.0 has yet another mapping table,
+			# though the table name of 2.x and 1.x are different.
+			# (1.x is in core of Perl < 5.6, 2.x is in core of
+			# Perl < 5.9.3)
+			my $mapping = ($Pod::Text::VERSION < 2)
+				? \%Pod::Text::HTML_Escapes
+				: \%Pod::Text::ESCAPES;
+			$author =~ s{ E<( (\d+) | ([A-Za-z]+) )> }
+			{
+				defined $2
+				? chr($2)
+				: defined $mapping->{$1}
+				? $mapping->{$1}
+				: do {
+					warn "Unknown escape: E<$1>";
+					"E<$1>";
+				};
+			}gex;
+		}
+		else {
+			$author =~ s{E<lt>}{<}g;
+			$author =~ s{E<gt>}{>}g;
+		}
+		$self->author($author);
+	} else {
+		warn "Cannot determine author info from $_[0]\n";
+	}
+}
+
+#Stolen from M::B
+my %license_urls = (
+    perl         => 'http://dev.perl.org/licenses/',
+    apache       => 'http://apache.org/licenses/LICENSE-2.0',
+    apache_1_1   => 'http://apache.org/licenses/LICENSE-1.1',
+    artistic     => 'http://opensource.org/licenses/artistic-license.php',
+    artistic_2   => 'http://opensource.org/licenses/artistic-license-2.0.php',
+    lgpl         => 'http://opensource.org/licenses/lgpl-license.php',
+    lgpl2        => 'http://opensource.org/licenses/lgpl-2.1.php',
+    lgpl3        => 'http://opensource.org/licenses/lgpl-3.0.html',
+    bsd          => 'http://opensource.org/licenses/bsd-license.php',
+    gpl          => 'http://opensource.org/licenses/gpl-license.php',
+    gpl2         => 'http://opensource.org/licenses/gpl-2.0.php',
+    gpl3         => 'http://opensource.org/licenses/gpl-3.0.html',
+    mit          => 'http://opensource.org/licenses/mit-license.php',
+    mozilla      => 'http://opensource.org/licenses/mozilla1.1.php',
+    open_source  => undef,
+    unrestricted => undef,
+    restrictive  => undef,
+    unknown      => undef,
+);
+
+sub license {
+	my $self = shift;
+	return $self->{values}->{license} unless @_;
+	my $license = shift or die(
+		'Did not provide a value to license()'
+	);
+	$license = __extract_license($license) || lc $license;
+	$self->{values}->{license} = $license;
+
+	# Automatically fill in license URLs
+	if ( $license_urls{$license} ) {
+		$self->resources( license => $license_urls{$license} );
+	}
+
+	return 1;
+}
+
+sub _extract_license {
+	my $pod = shift;
+	my $matched;
+	return __extract_license(
+		($matched) = $pod =~ m/
+			(=head \d \s+ L(?i:ICEN[CS]E|ICENSING)\b.*?)
+			(=head \d.*|=cut.*|)\z
+		/xms
+	) || __extract_license(
+		($matched) = $pod =~ m/
+			(=head \d \s+ (?:C(?i:OPYRIGHTS?)|L(?i:EGAL))\b.*?)
+			(=head \d.*|=cut.*|)\z
+		/xms
+	);
+}
+
+sub __extract_license {
+	my $license_text = shift or return;
+	my @phrases      = (
+		'(?:under )?the same (?:terms|license) as (?:perl|the perl (?:\d )?programming language)' => 'perl', 1,
+		'(?:under )?the terms of (?:perl|the perl programming language) itself' => 'perl', 1,
+		'Artistic and GPL'                   => 'perl',         1,
+		'GNU general public license'         => 'gpl',          1,
+		'GNU public license'                 => 'gpl',          1,
+		'GNU lesser general public license'  => 'lgpl',         1,
+		'GNU lesser public license'          => 'lgpl',         1,
+		'GNU library general public license' => 'lgpl',         1,
+		'GNU library public license'         => 'lgpl',         1,
+		'GNU Free Documentation license'     => 'unrestricted', 1,
+		'GNU Affero General Public License'  => 'open_source',  1,
+		'(?:Free)?BSD license'               => 'bsd',          1,
+		'Artistic license'                   => 'artistic',     1,
+		'Apache (?:Software )?license'       => 'apache',       1,
+		'GPL'                                => 'gpl',          1,
+		'LGPL'                               => 'lgpl',         1,
+		'BSD'                                => 'bsd',          1,
+		'Artistic'                           => 'artistic',     1,
+		'MIT'                                => 'mit',          1,
+		'Mozilla Public License'             => 'mozilla',      1,
+		'Q Public License'                   => 'open_source',  1,
+		'OpenSSL License'                    => 'unrestricted', 1,
+		'SSLeay License'                     => 'unrestricted', 1,
+		'zlib License'                       => 'open_source',  1,
+		'proprietary'                        => 'proprietary',  0,
+	);
+	while ( my ($pattern, $license, $osi) = splice(@phrases, 0, 3) ) {
+		$pattern =~ s#\s+#\\s+#gs;
+		if ( $license_text =~ /\b$pattern\b/i ) {
+			return $license;
+		}
+	}
+	return '';
 }
 
 sub license_from {
-    my ( $self, $file ) = @_;
-
-    if (
-        $self->_slurp($file) =~ m/
-        =head \d \s+
-        (?:licen[cs]e|licensing|copyright|legal)\b
-        (.*?)
-        (=head\\d.*|=cut.*|)
-        \z
-    /ixms
-      )
-    {
-        my $license_text = $1;
-        my @phrases      = (
-            'under the same (?:terms|license) as perl itself' => 'perl',
-            'GNU public license'                              => 'gpl',
-            'GNU lesser public license'                       => 'gpl',
-            'BSD license'                                     => 'bsd',
-            'Artistic license'                                => 'artistic',
-            'GPL'                                             => 'gpl',
-            'LGPL'                                            => 'lgpl',
-            'BSD'                                             => 'bsd',
-            'Artistic'                                        => 'artistic',
-        );
-        while ( my ( $pattern, $license ) = splice( @phrases, 0, 2 ) ) {
-            $pattern =~ s{\s+}{\\s+}g;
-            if ( $license_text =~ /\b$pattern\b/i ) {
-                $self->license($license);
-                return 1;
-            }
-        }
+	my $self = shift;
+	if (my $license=_extract_license(Module::Install::_read($_[0]))) {
+		$self->license($license);
+	} else {
+		warn "Cannot determine license info from $_[0]\n";
+		return 'unknown';
+	}
+}
+
+sub _extract_bugtracker {
+	my @links   = $_[0] =~ m#L<(
+	 \Qhttp://rt.cpan.org/\E[^>]+|
+	 \Qhttp://github.com/\E[\w_]+/[\w_]+/issues|
+	 \Qhttp://code.google.com/p/\E[\w_\-]+/issues/list
+	 )>#gx;
+	my %links;
+	@links{@links}=();
+	@links=keys %links;
+	return @links;
+}
+
+sub bugtracker_from {
+	my $self    = shift;
+	my $content = Module::Install::_read($_[0]);
+	my @links   = _extract_bugtracker($content);
+	unless ( @links ) {
+		warn "Cannot determine bugtracker info from $_[0]\n";
+		return 0;
+	}
+	if ( @links > 1 ) {
+		warn "Found more than one bugtracker link in $_[0]\n";
+		return 0;
+	}
+
+	# Set the bugtracker
+	bugtracker( $links[0] );
+	return 1;
+}
+
+sub requires_from {
+	my $self     = shift;
+	my $content  = Module::Install::_readperl($_[0]);
+	my @requires = $content =~ m/^use\s+([^\W\d]\w*(?:::\w+)*)\s+([\d\.]+)/mg;
+	while ( @requires ) {
+		my $module  = shift @requires;
+		my $version = shift @requires;
+		$self->requires( $module => $version );
+	}
+}
+
+sub test_requires_from {
+	my $self     = shift;
+	my $content  = Module::Install::_readperl($_[0]);
+	my @requires = $content =~ m/^use\s+([^\W\d]\w*(?:::\w+)*)\s+([\d\.]+)/mg;
+	while ( @requires ) {
+		my $module  = shift @requires;
+		my $version = shift @requires;
+		$self->test_requires( $module => $version );
+	}
+}
+
+# Convert triple-part versions (eg, 5.6.1 or 5.8.9) to
+# numbers (eg, 5.006001 or 5.008009).
+# Also, convert double-part versions (eg, 5.8)
+sub _perl_version {
+	my $v = $_[-1];
+	$v =~ s/^([1-9])\.([1-9]\d?\d?)$/sprintf("%d.%03d",$1,$2)/e;
+	$v =~ s/^([1-9])\.([1-9]\d?\d?)\.(0|[1-9]\d?\d?)$/sprintf("%d.%03d%03d",$1,$2,$3 || 0)/e;
+	$v =~ s/(\.\d\d\d)000$/$1/;
+	$v =~ s/_.+$//;
+	if ( ref($v) ) {
+		# Numify
+		$v = $v + 0;
+	}
+	return $v;
+}
+
+sub add_metadata {
+    my $self = shift;
+    my %hash = @_;
+    for my $key (keys %hash) {
+        warn "add_metadata: $key is not prefixed with 'x_'.\n" .
+             "Use appopriate function to add non-private metadata.\n" unless $key =~ /^x_/;
+        $self->{values}->{$key} = $hash{$key};
     }
+}
+
+
+######################################################################
+# MYMETA Support
+
+sub WriteMyMeta {
+	die "WriteMyMeta has been deprecated";
+}
+
+sub write_mymeta_yaml {
+	my $self = shift;
+
+	# We need YAML::Tiny to write the MYMETA.yml file
+	unless ( eval { require YAML::Tiny; 1; } ) {
+		return 1;
+	}
+
+	# Generate the data
+	my $meta = $self->_write_mymeta_data or return 1;
+
+	# Save as the MYMETA.yml file
+	print "Writing MYMETA.yml\n";
+	YAML::Tiny::DumpFile('MYMETA.yml', $meta);
+}
+
+sub write_mymeta_json {
+	my $self = shift;
+
+	# We need JSON to write the MYMETA.json file
+	unless ( eval { require JSON; 1; } ) {
+		return 1;
+	}
+
+	# Generate the data
+	my $meta = $self->_write_mymeta_data or return 1;
+
+	# Save as the MYMETA.yml file
+	print "Writing MYMETA.json\n";
+	Module::Install::_write(
+		'MYMETA.json',
+		JSON->new->pretty(1)->canonical->encode($meta),
+	);
+}
+
+sub _write_mymeta_data {
+	my $self = shift;
+
+	# If there's no existing META.yml there is nothing we can do
+	return undef unless -f 'META.yml';
+
+	# We need Parse::CPAN::Meta to load the file
+	unless ( eval { require Parse::CPAN::Meta; 1; } ) {
+		return undef;
+	}
+
+	# Merge the perl version into the dependencies
+	my $val  = $self->Meta->{values};
+	my $perl = delete $val->{perl_version};
+	if ( $perl ) {
+		$val->{requires} ||= [];
+		my $requires = $val->{requires};
+
+		# Canonize to three-dot version after Perl 5.6
+		if ( $perl >= 5.006 ) {
+			$perl =~ s{^(\d+)\.(\d\d\d)(\d*)}{join('.', $1, int($2||0), int($3||0))}e
+		}
+		unshift @$requires, [ perl => $perl ];
+	}
+
+	# Load the advisory META.yml file
+	my @yaml = Parse::CPAN::Meta::LoadFile('META.yml');
+	my $meta = $yaml[0];
+
+	# Overwrite the non-configure dependency hashs
+	delete $meta->{requires};
+	delete $meta->{build_requires};
+	delete $meta->{recommends};
+	if ( exists $val->{requires} ) {
+		$meta->{requires} = { map { @$_ } @{ $val->{requires} } };
+	}
+	if ( exists $val->{build_requires} ) {
+		$meta->{build_requires} = { map { @$_ } @{ $val->{build_requires} } };
+	}
 
-    warn "Cannot determine license info from $file\n";
-    return 'unknown';
+	return $meta;
 }
 
 1;