package MooseX::Getopt;
use Moose::Role;
+use Moose::Util::TypeConstraints;
+
use MooseX::Getopt::OptionTypeMap;
+
+use MooseX::Getopt::Session;
+
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 = '0.14';
+our $VERSION = '0.15';
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) = @_;
+use constant _default_getopt_session => 'MooseX::Getopt::Session';
- 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 );
+has getopt => (
+ is => 'rw',
+ isa => 'MooseX::Getopt::Session',
+ metaclass => 'NoGetopt',
+ handles => [ 'ARGV', 'extra_argv' ],
+);
- 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};
-
- $class->new(
- ARGV => $processed{argv_copy},
- extra_argv => $processed{argv},
- @params, # explicit params to ->new
- %$params, # params from CLI
- );
-}
-
-sub _parse_argv {
- my ( $class, %params ) = @_;
- local @ARGV = @{ $params{argv} || \@ARGV };
-
- 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 ];
+sub new_with_options {
+ my $class = shift;
- my @err;
+ return $class->new( $class->get_options_from_argv(@_) );
+};
- my ( $parsed_options, $usage ) = eval {
- local $SIG{__WARN__} = sub { push @err, @_ };
- if ( HAVE_GLD ) {
- return Getopt::Long::Descriptive::describe_options($class->_usage_format(%params), @$opt_spec);
- } else {
- my %options;
- Getopt::Long::GetOptions(\%options, @$opt_spec);
- return ( \%options, undef );
- }
- };
+sub get_options_from_argv {
+ my $class = shift;
- die join "", grep { defined } @err, $@ if @err or $@;
+ Moose->throw_error("Single parameters to get_options_from_argv() must be a HASH ref")
+ if ref $_[0] and ref $_ ne 'HASH';
- # Get a copy of the Getopt::Long-mangled @ARGV
- my $argv_mangled = [ @ARGV ];
+ my %params = ( $class->_get_options_from_configfile, @_ == 1 ? %{ $_[0] } : @_ );
- my %constructor_args = (
- map {
- $name_to_init_arg->{$_} => $parsed_options->{$_}
- } keys %$parsed_options,
- );
+ my $getopt = defined $params{getopt}
+ ? $params{getopt}
+ : $class->_default_getopt_session->new(
+ classes_filter => sub { $_ eq $class },
+ params => \%params,
+ );
- return (
- params => \%constructor_args,
- argv_copy => $argv_copy,
- argv => $argv_mangled,
- ( defined($usage) ? ( usage => $usage ) : () ),
+ my %new_params = (
+ %{ $getopt->params }, # params from session object
+ %params, # explicit params to ->new
+ %{ $getopt->options }, # params from CLI
+ getopt => $getopt,
);
-}
-
-sub _usage_format {
- return "usage: %c %o";
-}
-
-sub _traditional_spec {
- my ( $class, %params ) = @_;
- my ( @options, %name_to_init_arg, %options );
+ return %new_params;
+};
- 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 _get_options_from_configfile {
+ my $class = shift;
-sub _gld_spec {
- my ( $class, %params ) = @_;
+ my %params = ();
- my ( @options, %name_to_init_arg );
+ if ($class->meta->does_role('MooseX::ConfigFromFile')) {
+ local @ARGV = @ARGV;
- my $constructor_params = $params{params};
+ my $configfile;
+ my $opt_parser = Getopt::Long::Parser->new( config => [ 'pass_through' ] );
+ $opt_parser->getoptions( "configfile=s" => \$configfile );
- 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}) : () ),
- },
- ];
+ if (not defined $configfile) {
+ my $cfmeta = $class->meta->find_attribute_by_name('configfile');
+ $configfile = $cfmeta->default if $cfmeta->has_default;
+ };
- my $identifier = $opt->{name};
- $identifier =~ s/\W/_/g; # Getopt::Long does this to all option names
+ if (defined $configfile) {
+ %params = %{ $class->get_config_from_file($configfile) };
+ };
+ };
- $name_to_init_arg{$identifier} = $opt->{init_arg};
- }
+ return %params;
+};
- return ( \@options, \%name_to_init_arg );
-}
sub _compute_getopt_attrs {
my $class = shift;
- grep {
- $_->does("MooseX::Getopt::Meta::Attribute::Trait")
+
+ return grep {
+ $_->does('MooseX::Getopt::Meta::Attribute::Trait')
or
$_->name !~ /^_/
} grep {
!$_->does('MooseX::Getopt::Meta::Attribute::Trait::NoGetopt')
- } $class->meta->compute_all_applicable_attributes
-}
-
-sub _get_cmd_flags_for_attr {
- my ( $class, $attr ) = @_;
-
- my $flag = $attr->name;
-
- my @aliases;
+ } $class->meta->compute_all_applicable_attributes;
+};
- if ($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->has_type_constraint) {
- my $type_name = $attr->type_constraint->name;
- if (MooseX::Getopt::OptionTypeMap->has_option_type($type_name)) {
- $opt_string .= MooseX::Getopt::OptionTypeMap->get_option_type($type_name)
- }
- }
-
- 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;
-}
no Moose::Role; 1;
like a normal C<ArrayRef> type for Getopt purposes (that is,
C<=s@>).
+=head2 Session
+
+L<MooseX::Getopt> can handle more than one class which contain
+attributes filled from CLI. In this case, you need to use explicite
+L<MooseX::Getopt::Session> object and then the Getopt attributes will be
+searched in any class which does L<MooseX::Getopt>.
+
+ package My::App;
+ use Moose;
+ with 'MooseX::Getopt';
+ has 'send' => (is => 'rw', predicate => 'has_send');
+
+ package My::App::Send;
+ use Moose;
+ with 'MooseX::Getopt';
+ has 'to' => (is => 'rw', isa => 'Str', default => 'localhost');
+ sub send { my $self = shift; warn "Sending mail to ", $self->to; }
+
+ # ... rest of the class here
+
+ ## in your script
+ #!/usr/bin/perl
+
+ my $getopt = MooseX::Getopt::Session->new;
+
+ my $app = My::App->new_with_options( getopt => $getopt );
+ if ($app->has_send) {
+ # Use the same command line
+ my $sender = My::App::Send->new_with_options( getopt => $getopt );
+ $sender->send;
+ }
+ # ... rest of the script here
+
+ ## on the command line
+ % perl my_app_script.pl --send --to server.example.net
+
=head1 METHODS
=over 4
If you have L<Getopt::Long::Descriptive> a the C<usage> param is also passed to
C<new>.
+=item B<get_options_from_argv (%params)>
+
+This method returns the list of parameters collected from command line
+without creating the new object.
+
=item B<ARGV>
-This accessor contains a reference to a copy of the C<@ARGV> array
-as it originally existed at the time of C<new_with_options>.
+This accessor contains a reference to a copy of the C<@ARGV> array as it
+originally existed at the time of C<new_with_options>.
+
+The C<ARGV> is delegated from L<MooseX::Getopt::Session> object.
=item B<extra_argv>
L<Getopt::Long> did not parse. Note that the real C<@ARGV> is left
un-mangled.
+The C<extra_argv> is delegated from L<MooseX::Getopt::Session> object.
+
+=item B<getopt>
+
+This accessor contains a L<MooseX::Getopt::Session> object. This object can
+be shared between more than one class which does L<MooseX::Getopt>. The new
+object is created by default.
+
=item B<meta>
This returns the role meta object.
=back
+=head1 SEE ALSO
+
+=over 4
+
+=item L<MooseX::Getopt::Strict>
+
+=item L<MooseX::Getopt::Session>
+
+=item L<MooseX::Getopt::Parser>
+
+=back
+
=head1 BUGS
All complex software has bugs lurking in it, and this module is no
Ryan D Johnson, E<lt>ryan@innerfence.comE<gt>
+Piotr Roszatycki, E<lt>dexter@cpan.orgE<gt>
+
=head1 COPYRIGHT AND LICENSE
Copyright 2007-2008 by Infinity Interactive, Inc.
projects / gitmo/MooseX-Getopt.git / blobdiff