--- /dev/null
+use strict;
+package Module::Depends::Intrusive;
+use base qw( Module::Depends );
+use Cwd qw( getcwd );
+use ExtUtils::MakeMaker ();
+
+sub _find_modules {
+ my $self = shift;
+
+ # this order is important, as when a Makefile.PL and Build.PL are
+ # present, the Makefile.PL could just be a passthrough
+ my $pl = -e 'Build.PL' ? 'Build.PL' : -e 'Makefile.PL' ? 'Makefile.PL' : 0;
+ unless ($pl) {
+ $self->error( 'No {Build,Makefile}.PL found in '.$self->dist_dir );
+ return $self;
+ }
+
+ # fake up Module::Build and ExtUtils::MakeMaker
+ no warnings 'redefine';
+ local *STDIN; # run non-interactive
+ local *ExtUtils::Liblist::ext = sub {
+ my ($class, $lib) = @_;
+ $lib =~ s/\-l//;
+ push @{ $self->libs }, $lib;
+ return 1;
+ };
+ local *CORE::GLOBAL::exit = sub { };
+ local $INC{"Module/Build.pm"} = 1;
+ local @MyModuleBuilder::ISA = qw( Module::Build );
+ local *Module::Build::new = sub {
+ my $class = shift;
+ my %args = @_;
+ $self->requires( $args{requires} || {} );
+ $self->build_requires( $args{build_requires} || {} );
+ bless {}, "Module::Depends::Intrusive::Fake::Module::Build";
+ };
+ local *Module::Build::subclass = sub { 'Module::Build' };
+ local $Module::Build::VERSION = 666;
+
+ my $WriteMakefile = sub {
+ my %args = @_;
+ $self->requires( $args{PREREQ_PM} || {} );
+ 1;
+ };
+ local *main::WriteMakefile;
+ local *ExtUtils::MakeMaker::WriteMakefile = $WriteMakefile;
+
+ # Inline::MakeMaker
+ local $INC{"Inline/MakeMaker.pm"} = 1;
+
+ local @Inline::MakeMaker::EXPORT = qw( WriteMakefile WriteInlineMakefile );
+ local @Inline::MakeMaker::ISA = qw( Exporter );
+ local *Inline::MakeMaker::WriteMakefile = $WriteMakefile;
+ local *Inline::MakeMaker::WriteInlineMakefile = $WriteMakefile;
+
+ # Module::Install
+ local $INC{"inc/Module/Install.pm"} = 1;
+ local @inc::Module::Install::ISA = qw( Exporter );
+ local @inc::Module::Install::EXPORT = qw(
+
+ all_from auto_install AUTOLOAD build_requires check_nmake include
+ include_deps installdirs Makefile makemaker_args Meta name no_index
+ requires WriteAll clean_files can_cc sign cc_inc_paths cc_files
+ cc_optimize_flags author license
+
+ );
+ local *inc::Module::Install::AUTOLOAD = sub { 1 };
+ local *inc::Module::Install::requires = sub {
+ my %deps = (@_ == 1 ? ( $_[0] => 0 ) : @_);
+ $self->requires->{ $_ } = $deps{ $_ } for keys %deps;
+ };
+ local *inc::Module::Install::include_deps = *inc::Module::Install::requires;
+ local *inc::Module::Install::build_requires = sub {
+ my %deps = (@_ == 1 ? ( $_[0] => 0 ) : @_);
+ $self->build_requires->{ $_ } = $deps{ $_ } for keys %deps;
+ };
+
+ my $file = File::Spec->catfile( getcwd(), $pl );
+ eval {
+ package main;
+ no strict;
+ no warnings;
+ local $0 = $file;
+ require "$file";
+ };
+ $self->error( $@ ) if $@;
+ delete $INC{$file};
+ return $self;
+}
+
+package Module::Depends::Intrusive::Fake::Module::Build;
+sub DESTROY {}
+sub AUTOLOAD { shift }
+sub y_n {
+ my ($self, $question, $default) = @_;
+ $default ||= 'n';
+ return 1 if lc $default eq 'y';
+ return 0; # ok, we may say no when yes was intended, but we can't hang
+}
+
+1;
+
+__END__
+
+=head1 NAME
+
+Module::Depends::Intrusive - intrusive discovery of distribution dependencies.
+
+=head1 SYNOPSIS
+
+ # Just like Module::Depends, only use the Intrusive class instead
+
+=head1 DESCRIPTION
+
+This module devines dependencies by running the distributions
+Makefile.PL/Build.PL in a faked up environment and intercepting the
+calls to Module::Build->new and ExtUtils::MakeMaker::WriteMakefile.
+
+You may now freak out about security.
+
+While you're doing that please remember that what we're doing is much
+the same that CPAN.pm does in order to discover prerequisites.
+
+=head1 AUTHOR
+
+Richard Clamp, based on code extracted from the Fotango build system
+originally by James Duncan and Arthur Bergman.
+
+=head1 COPYRIGHT
+
+Copyright 2004 Fotango. All Rights Reserved.
+
+This module is free software; you can redistribute it and/or modify it
+under the same terms as Perl itself.
+
+=head1 SEE ALSO
+
+L<Module::Depends>
+
+=cut