+sub _extract_bugtracker {
+ my @links = $_[0] =~ m#L<(\Qhttp://rt.cpan.org/\E[^>]+)>#g;
+ 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 on rt.cpan.org 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;
+}
+
+
+
+
+
+######################################################################
+# 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} } };
+ }
+
+ return $meta;
+}
+