package MooseX::Getopt;
use Moose::Role;
-use Getopt::Long::Descriptive ();
-
use MooseX::Getopt::OptionTypeMap;
use MooseX::Getopt::Meta::Attribute;
use MooseX::Getopt::Meta::Attribute::NoGetopt;
+use Getopt::Long (); # GLD uses it anyway, doesn't hurt
+use constant HAVE_GLD => not not eval { require Getopt::Long::Descriptive };
+
our $VERSION = '0.08';
our $AUTHORITY = 'cpan:STEVAN';
local @ARGV = @{ $params{argv} || \@ARGV };
- my ( $opt_spec, $name_to_init_arg ) = $class->_gld_spec(%params);
+ my ( $opt_spec, $name_to_init_arg ) = ( HAVE_GLD ? $class->_gld_spec(%params) : $class->_traditional_spec(%params) );
# Get a clean copy of the original @ARGV
my $argv_copy = [ @ARGV ];
my ( $parsed_options, $usage ) = eval {
local $SIG{__WARN__} = sub { push @err, @_ };
- Getopt::Long::Descriptive::describe_options($class->_usage_format(%params), @$opt_spec)
+
+ if ( HAVE_GLD ) {
+ return Getopt::Long::Descriptive::describe_options($class->_usage_format(%params), @$opt_spec);
+ } else {
+ my %options;
+ Getopt::Long::GetOptions(\%options, @$opt_spec);
+ return ( \%options, undef );
+ }
};
die join "", grep { defined } @err, $@ if @err or $@;
params => \%constructor_args,
argv_copy => $argv_copy,
argv => $argv_mangled,
- usage => $usage
+ ( defined($usage) ? ( usage => $usage ) : () ),
);
}
return "usage: %c %o";
}
+sub _traditional_spec {
+ my ( $class, %params ) = @_;
+
+ my ( @options, %name_to_init_arg, %options );
+
+ foreach my $opt ( @{ $params{options} } ) {
+ push @options, $opt->{opt_string};
+ $name_to_init_arg{ $opt->{name} } = $opt->{init_arg};
+ }
+
+ return ( \@options, \%name_to_init_arg );
+}
+
sub _gld_spec {
my ( $class, %params ) = @_;
If L<Getopt::Long/GetOptions> fails (due to invalid arguments),
C<new_with_options> will throw an exception.
+If you have L<Getopt::Long::Descriptive> a the C<usage> param is also passed to
+C<new>.
+
=item B<ARGV>
This accessor contains a reference to a copy of the C<@ARGV> array