package MooseX::Getopt;
use Moose::Role;
-use MooseX::Getopt::OptionTypeMap;
-use MooseX::Getopt::Meta::Attribute;
-use MooseX::Getopt::Meta::Attribute::NoGetopt;
-
-use Carp ();
-
-use Getopt::Long (); # GLD uses it anyway, doesn't hurt
use constant HAVE_GLD => not not eval { require Getopt::Long::Descriptive };
-our $VERSION = '0.20';
-our $AUTHORITY = 'cpan:STEVAN';
-
-has ARGV => (is => 'rw', isa => 'ArrayRef', metaclass => "NoGetopt");
-has extra_argv => (is => 'rw', isa => 'ArrayRef', metaclass => "NoGetopt");
-
-sub new_with_options {
- my ($class, @params) = @_;
-
- my $config_from_file;
- if($class->meta->does_role('MooseX::ConfigFromFile')) {
- local @ARGV = @ARGV;
-
- my $configfile;
- my $opt_parser = Getopt::Long::Parser->new( config => [ qw( pass_through ) ] );
- $opt_parser->getoptions( "configfile=s" => \$configfile );
-
- if(!defined $configfile) {
- my $cfmeta = $class->meta->find_attribute_by_name('configfile');
- $configfile = $cfmeta->default if $cfmeta->has_default;
- }
-
- if(defined $configfile) {
- $config_from_file = $class->get_config_from_file($configfile);
- }
- }
-
- my $constructor_params = ( @params == 1 ? $params[0] : {@params} );
-
- Carp::croak("Single parameters to new_with_options() must be a HASH ref")
- unless ref($constructor_params) eq 'HASH';
-
- my %processed = $class->_parse_argv(
- options => [
- $class->_attrs_to_options( $config_from_file )
- ],
- params => $constructor_params,
- );
-
- my $params = $config_from_file ? { %$config_from_file, %{$processed{params}} } : $processed{params};
-
- # did the user request usage information?
- if ( $processed{usage} && ($params->{'?'} or $params->{help} or $params->{usage}) )
- {
- $processed{usage}->die();
- }
+my @roles = ('MooseX::Getopt::Basic');
+if (HAVE_GLD()) { push @roles, 'MooseX::Getopt::GLD' }
- $class->new(
- ARGV => $processed{argv_copy},
- extra_argv => $processed{argv},
- %$constructor_params, # explicit params to ->new
- %$params, # params from CLI
- );
-}
-
-sub _parse_argv {
- my ( $class, %params ) = @_;
-
- local @ARGV = @{ $params{params}{argv} || \@ARGV };
-
- my $use_gld = (HAVE_GLD && !$params{params}{disable_gld});
-
- my ( $opt_spec, $name_to_init_arg ) = ( $use_gld ? $class->_gld_spec(%params) : $class->_traditional_spec(%params) );
-
- # Get a clean copy of the original @ARGV
- my $argv_copy = [ @ARGV ];
-
- my @err;
-
- my ( $parsed_options, $usage ) = eval {
- local $SIG{__WARN__} = sub { push @err, @_ };
-
- if ( $use_gld ) {
- return Getopt::Long::Descriptive::describe_options($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 $@;
-
- # Get a copy of the Getopt::Long-mangled @ARGV
- my $argv_mangled = [ @ARGV ];
-
- my %constructor_args = (
- map {
- $name_to_init_arg->{$_} => $parsed_options->{$_}
- } keys %$parsed_options,
- );
-
- return (
- params => \%constructor_args,
- argv_copy => $argv_copy,
- argv => $argv_mangled,
- ( defined($usage) ? ( usage => $usage ) : () ),
- );
-}
-
-sub _usage_format {
- 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};
-
- my $identifier = $opt->{name};
- $identifier =~ s/\W/_/g; # Getopt::Long does this to all option names
-
- $name_to_init_arg{$identifier} = $opt->{init_arg};
- }
-
- return ( \@options, \%name_to_init_arg );
-}
-
-sub _gld_spec {
- my ( $class, %params ) = @_;
-
- my ( @options, %name_to_init_arg );
-
- my $constructor_params = $params{params};
-
- foreach my $opt ( @{ $params{options} } ) {
- push @options, [
- $opt->{opt_string},
- $opt->{doc} || ' ', # FIXME new GLD shouldn't need this hack
- {
- ( ( $opt->{required} && !exists($constructor_params->{$opt->{init_arg}}) ) ? (required => $opt->{required}) : () ),
- # NOTE:
- # remove this 'feature' because it didn't work
- # all the time, and so is better to not bother
- # since Moose will handle the defaults just
- # fine anyway.
- # - SL
- #( exists $opt->{default} ? (default => $opt->{default}) : () ),
- },
- ];
-
- my $identifier = $opt->{name};
- $identifier =~ s/\W/_/g; # Getopt::Long does this to all option names
-
- $name_to_init_arg{$identifier} = $opt->{init_arg};
- }
-
- return ( \@options, \%name_to_init_arg );
-}
-
-sub _compute_getopt_attrs {
- my $class = shift;
- grep {
- $_->does("MooseX::Getopt::Meta::Attribute::Trait")
- or
- $_->name !~ /^_/
- } grep {
- !$_->does('MooseX::Getopt::Meta::Attribute::Trait::NoGetopt')
- } $class->meta->get_all_attributes
-}
-
-sub _get_cmd_flags_for_attr {
- my ( $class, $attr ) = @_;
-
- my $flag = $attr->name;
-
- my @aliases;
-
- if ($attr->does('MooseX::Getopt::Meta::Attribute::Trait')) {
- $flag = $attr->cmd_flag if $attr->has_cmd_flag;
- @aliases = @{ $attr->cmd_aliases } if $attr->has_cmd_aliases;
- }
-
- return ( $flag, @aliases );
-}
-
-sub _attrs_to_options {
- my $class = shift;
- my $config_from_file = shift || {};
-
- my @options;
-
- foreach my $attr ($class->_compute_getopt_attrs) {
- my ( $flag, @aliases ) = $class->_get_cmd_flags_for_attr($attr);
-
- my $opt_string = join(q{|}, $flag, @aliases);
-
- if ($attr->name eq 'configfile') {
- $opt_string .= '=s';
- }
- elsif ($attr->has_type_constraint) {
- my $type = $attr->type_constraint;
- if (MooseX::Getopt::OptionTypeMap->has_option_type($type)) {
- $opt_string .= MooseX::Getopt::OptionTypeMap->get_option_type($type)
- }
- }
-
- push @options, {
- name => $flag,
- init_arg => $attr->init_arg,
- opt_string => $opt_string,
- required => $attr->is_required && !$attr->has_default && !$attr->has_builder && !exists $config_from_file->{$attr->name},
- # NOTE:
- # this "feature" was breaking because
- # Getopt::Long::Descriptive would return
- # the default value as if it was a command
- # line flag, which would then override the
- # one passed into a constructor.
- # See 100_gld_default_bug.t for an example
- # - SL
- #( ( $attr->has_default && ( $attr->is_default_a_coderef xor $attr->is_lazy ) ) ? ( default => $attr->default({}) ) : () ),
- ( $attr->has_documentation ? ( doc => $attr->documentation ) : () ),
- }
- }
-
- return @options;
-}
+with @roles;
no Moose::Role; 1;
This returns the role meta object.
+=item B<HAVE_GLD>
+
+A constant for internal use.
+
=back
=head1 BUGS
projects / gitmo/MooseX-Getopt.git / blobdiff