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=7acf8fd76141a26bd8e3da7f05260c354478db5d;hb=47c2ccb6812acb71dff5fbca2e8f272ab395f8d1;hpb=2df927d640cb12b4e1e7597dd641d710c38c5953

diff --git a/inc/Module/Install/Metadata.pm b/inc/Module/Install/Metadata.pm
index 7acf8fd..cfe45b3 100644
--- a/inc/Module/Install/Metadata.pm
+++ b/inc/Module/Install/Metadata.pm
@@ -1,24 +1,26 @@
+#line 1
 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 = '0.72';
+	$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
 	installdirs
 };
@@ -29,110 +31,172 @@ my @tuple_keys = qw{
 	requires
 	recommends
 	bundles
+	resources
+};
+
+my @resource_keys = qw{
+	homepage
+	bugtracker
+	repository
 };
 
-sub Meta            { shift        }
-sub Meta_ScalarKeys { @scalar_keys }
-sub Meta_TupleKeys  { @tuple_keys  }
+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 (@scalar_keys) {
+foreach my $key ( @boolean_keys ) {
 	*$key = sub {
 		my $self = shift;
-		return $self->{values}{$key} if defined wantarray and !@_;
-		$self->{values}{$key} = shift;
+		if ( defined wantarray and not @_ ) {
+			return $self->{values}->{$key};
+		}
+		$self->{values}->{$key} = ( @_ ? $_[0] : 1 );
 		return $self;
 	};
 }
 
-sub requires {
-	my $self = shift;
-	while ( @_ ) {
-		my $module  = shift or last;
-		my $version = shift || 0;
-		push @{ $self->{values}->{requires} }, [ $module, $version ];
-	}
-	$self->{values}{requires};
+foreach my $key ( @scalar_keys ) {
+	*$key = sub {
+		my $self = shift;
+		return $self->{values}->{$key} if defined wantarray and !@_;
+		$self->{values}->{$key} = shift;
+		return $self;
+	};
 }
 
-sub build_requires {
-	my $self = shift;
-	while ( @_ ) {
-		my $module  = shift or last;
-		my $version = shift || 0;
-		push @{ $self->{values}->{build_requires} }, [ $module, $version ];
-	}
-	$self->{values}{build_requires};
+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;
+	};
 }
 
-sub configure_requires {
-	my $self = shift;
-	while ( @_ ) {
-		my $module  = shift or last;
-		my $version = shift || 0;
-		push @{ $self->{values}->{configure_requires} }, [ $module, $version ];
-	}
-	$self->{values}{configure_requires};
+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;
+	};
 }
 
-sub recommends {
-	my $self = shift;
-	while ( @_ ) {
-		my $module  = shift or last;
-		my $version = shift || 0;
-		push @{ $self->{values}->{recommends} }, [ $module, $version ];
-	}
-	$self->{values}{recommends};
+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;
+	};
 }
 
-sub bundles {
+# Resource handling
+my %lc_resource = map { $_ => 1 } qw{
+	homepage
+	license
+	bugtracker
+	repository
+};
+
+sub resources {
 	my $self = shift;
 	while ( @_ ) {
-		my $module  = shift or last;
-		my $version = shift || 0;
-		push @{ $self->{values}->{bundles} }, [ $module, $version ];
+		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}{bundles};
+	$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(@_) }
+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 sign {
-	my $self = shift;
-	return $self->{'values'}{'sign'} if defined wantarray and ! @_;
-	$self->{'values'}{'sign'} = ( @_ ? $_[0] : 1 );
-	return $self;
-}
+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 perl_version {
+	my $self = shift;
+	return $self->{values}->{perl_version} unless @_;
+	my $version = shift or die(
+		"Did not provide a value to perl_version()"
+	);
+
+	# Normalize the version
+	$version = $self->_perl_version($version);
+
+	# 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->{values}->{perl_version} = $version;
 }
 
 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";
+		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;
+		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");
 	}
 
+	$self->{values}{all_from} = $file;
+
 	# Some methods pull from POD instead of code.
 	# If there is a matching .pod, use that instead
 	my $pod = $file;
@@ -143,7 +207,7 @@ sub all_from {
 	$self->name_from($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;
+	$self->author_from($pod)        unless @{$self->author || []};
 	$self->license_from($pod)       unless $self->license;
 	$self->abstract_from($pod)      unless $self->abstract;
 
@@ -152,7 +216,7 @@ sub all_from {
 
 sub provides {
 	my $self     = shift;
-	my $provides = ( $self->{values}{provides} ||= {} );
+	my $provides = ( $self->{values}->{provides} ||= {} );
 	%$provides = (%$provides, @_) if @_;
 	return $provides;
 }
@@ -181,7 +245,7 @@ sub auto_provides {
 sub feature {
 	my $self     = shift;
 	my $name     = shift;
-	my $features = ( $self->{values}{features} ||= [] );
+	my $features = ( $self->{values}->{features} ||= [] );
 	my $mods;
 
 	if ( @_ == 1 and ref( $_[0] ) ) {
@@ -217,8 +281,8 @@ sub features {
 sub no_index {
 	my $self = shift;
 	my $type = shift;
-	push @{ $self->{values}{no_index}{$type} }, @_ if $type;
-	return $self->{values}{no_index};
+	push @{ $self->{values}->{no_index}->{$type} }, @_ if $type;
+	return $self->{values}->{no_index};
 }
 
 sub read {
@@ -253,6 +317,9 @@ sub version_from {
 	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 {
@@ -263,34 +330,36 @@ sub abstract_from {
 			{ DISTNAME => $self->name },
 			'ExtUtils::MM_Unix'
 		)->parse_abstract($file)
-	 );
+	);
 }
 
+# Add both distribution and module name
 sub name_from {
-	my $self = shift;
+	my ($self, $file) = @_;
 	if (
-		Module::Install::_read($_[0]) =~ m/
+		Module::Install::_read($file) =~ m/
 		^ \s*
 		package \s*
 		([\w:]+)
 		\s* ;
 		/ixms
 	) {
-		my $name = $1;
+		my ($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 $_[0]\n";
-		return;
+		die("Cannot determine name from $file\n");
 	}
 }
 
-sub perl_version_from {
-	my $self = shift;
+sub _extract_perl_version {
 	if (
-		Module::Install::_read($_[0]) =~ m/
-		^
-		use \s*
+		$_[0] =~ m/
+		^\s*
+		(?:use|require) \s*
 		v?
 		([\d_\.]+)
 		\s* ;
@@ -298,6 +367,16 @@ sub perl_version_from {
 	) {
 		my $perl_version = $1;
 		$perl_version =~ s{_}{}g;
+		return $perl_version;
+	} else {
+		return;
+	}
+}
+
+sub perl_version_from {
+	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";
@@ -317,69 +396,320 @@ sub author_from {
 		([^\n]*)
 	/ixms) {
 		my $author = $1 || $2;
-		$author =~ s{E<lt>}{<}g;
-		$author =~ s{E<gt>}{>}g;
+
+		# 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";
 	}
 }
 
-sub license_from {
+#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 $self = shift;
-	if (
-		Module::Install::_read($_[0]) =~ m/
-		(
-			=head \d \s+
-			(?:licen[cs]e|licensing|copyright|legal)\b
-			.*?
-		)
-		(=head\\d.*|=cut.*|)
-		\z
-	/ixms ) {
-		my $license_text = $1;
-		my @phrases      = (
-			'under the same (?:terms|license) as perl itself' => 'perl',        1,
-			'GNU public license'                              => 'gpl',         1,
-			'GNU lesser public license'                       => 'lgpl',        1,
-			'BSD license'                                     => 'bsd',         1,
-			'Artistic license'                                => 'artistic',    1,
-			'GPL'                                             => 'gpl',         1,
-			'LGPL'                                            => 'lgpl',        1,
-			'BSD'                                             => 'bsd',         1,
-			'Artistic'                                        => 'artistic',    1,
-			'MIT'                                             => 'mit',         1,
-			'proprietary'                                     => 'proprietary', 0,
-		);
-		while ( my ($pattern, $license, $osi) = splice(@phrases, 0, 3) ) {
-			$pattern =~ s{\s+}{\\s+}g;
-			if ( $license_text =~ /\b$pattern\b/i ) {
-				if ( $osi and $license_text =~ /All rights reserved/i ) {
-					warn "LEGAL WARNING: 'All rights reserved' may invalidate Open Source licenses. Consider removing it.";
-				}
-				$self->license($license);
-				return 1;
-			}
+	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 = 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 );
+	}
+}
 
-	warn "Cannot determine license info from $_[0]\n";
-	return 'unknown';
+# 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};
+    }
 }
 
-sub install_script {
+
+######################################################################
+# MYMETA Support
+
+sub WriteMyMeta {
+	die "WriteMyMeta has been deprecated";
+}
+
+sub write_mymeta_yaml {
 	my $self = shift;
-	my $args = $self->makemaker_args;
-	my $exe  = $args->{EXE_FILES} ||= [];
-        foreach ( @_ ) {
-		if ( -f $_ ) {
-			push @$exe, $_;
-		} elsif ( -d 'script' and -f "script/$_" ) {
-			push @$exe, "script/$_";
-		} else {
-			die "Cannot find script '$_'";
+
+	# 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} } };
+	}
+
+	return $meta;
 }
 
 1;