package MooseX::Getopt;
use Moose::Role;
-use Getopt::Long ();
+use Getopt::Long::Descriptive ();
use MooseX::Getopt::OptionTypeMap;
use MooseX::Getopt::Meta::Attribute;
+use MooseX::Getopt::Meta::Attribute::NoGetopt;
-our $VERSION = '0.05';
+our $VERSION = '0.08';
our $AUTHORITY = 'cpan:STEVAN';
has ARGV => (is => 'rw', isa => 'ArrayRef');
has extra_argv => (is => 'rw', isa => 'ArrayRef');
sub new_with_options {
- my ($class, %params) = @_;
+ my ($class, @params) = @_;
- my (@options, %name_to_init_arg);
- foreach my $attr ($class->meta->compute_all_applicable_attributes) {
+ my %processed = $class->_parse_argv(
+ options => [
+ $class->_attrs_to_options( @params )
+ ]
+ );
+
+ my $params = $processed{params};
+
+ if($class->meta->does_role('MooseX::ConfigFromFile')
+ && defined $params->{configfile}) {
+ %$params = (
+ %{$class->get_config_from_file($params->{configfile})},
+ %$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 ( @options, %name_to_init_arg );
+
+ foreach my $opt ( @{ $params{options} } ) {
+ push @options, [
+ $opt->{opt_string},
+ $opt->{doc} || ' ',
+ {
+ ( $opt->{required} ? (required => $opt->{required}) : () ),
+ ( exists $opt->{default} ? (default => $opt->{default}) : () ),
+ },
+ ];
+
+ $name_to_init_arg{ $opt->{name} } = $opt->{init_arg};
+ }
+
+ # 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, @_ };
+ Getopt::Long::Descriptive::describe_options("usage: %c %o", @options)
+ };
+
+ die join "", grep { defined } @err, $@ if @err or $@;
+
+ # Get a copy of the Getopt::Long-mangled @ARGV
+ my $argv_mangled = [ @ARGV ];
+
+ return (
+ argv_copy => $argv_copy,
+ argv => $argv_mangled,
+ params => {
+ map {
+ $name_to_init_arg{$_} => $parsed_options->{$_}
+ } keys %$parsed_options,
+ }
+ );
+}
+
+sub _compute_getopt_attrs {
+ my $class = shift;
+ grep {
+ $_->isa("MooseX::Getopt::Meta::Attribute")
+ or
+ $_->name !~ /^_/
+ &&
+ !$_->isa('MooseX::Getopt::Meta::Attribute::NoGetopt')
+ } $class->meta->compute_all_applicable_attributes
+}
+
+sub _attrs_to_options {
+ my $class = shift;
+
+ my @options;
+
+ foreach my $attr ($class->_compute_getopt_attrs) {
my $name = $attr->name;
my $aliases;
$name = $attr->cmd_flag if $attr->has_cmd_flag;
$aliases = $attr->cmd_aliases if $attr->has_cmd_aliases;
}
- else {
- next if $name =~ /^_/;
- }
-
- $name_to_init_arg{$name} = $attr->init_arg;
-
+
my $opt_string = $aliases
? join(q{|}, $name, @$aliases)
: $name;
if ($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);
+ if (MooseX::Getopt::OptionTypeMap->has_option_type($type_name)) {
+ $opt_string .= MooseX::Getopt::OptionTypeMap->get_option_type($type_name)
}
}
-
- push @options => $opt_string;
- }
-
- my %options;
- # Get a clean copy of the original @ARGV
- my $argv_copy = [ @ARGV ];
-
- {
- local $SIG{__WARN__} = sub { die $_[0] };
- Getopt::Long::GetOptions(\%options, @options);
+ push @options, {
+ name => $name,
+ init_arg => $attr->init_arg,
+ opt_string => $opt_string,
+ required => $attr->is_required,
+ ( ( $attr->has_default && ( $attr->is_default_a_coderef xor $attr->is_lazy ) ) ? ( default => $attr->default({}) ) : () ),
+ ( $attr->has_documentation ? ( doc => $attr->documentation ) : () ),
+ }
}
- # Get a copy of the Getopt::Long-mangled @ARGV
- my $argv_mangled = [ @ARGV ];
-
- # Restore the original @ARGV;
- @ARGV = @$argv_copy;
-
- #use Data::Dumper;
- #warn Dumper \@options;
- #warn Dumper \%name_to_init_arg;
- #warn Dumper \%options;
-
- $class->new(
- ARGV => $argv_copy,
- extra_argv => $argv_mangled,
- %params,
- map {
- $name_to_init_arg{$_} => $options{$_}
- } keys %options,
- );
+ return @options;
}
no Moose::Role; 1;
You can use the attribute metaclass L<MooseX::Getopt::Meta::Attribute>
to get non-default commandline option names and aliases.
+You can use the attribute metaclass L<MooseX::Getopt::Meta::Attribute::NoGetOpt>
+to have C<MooseX::Getopt> ignore your attribute in the commandline options.
+
By default, attributes which start with an underscore are not given
commandline argument support, unless the attribute's metaclass is set
to L<MooseX::Getopt::Meta::Attribute>. If you don't want you accessors
This will mean that Getopt will not handle a --foo param, but your
code can still call the C<foo> method.
+If your class also uses a configfile-loading role based on
+L<MooseX::ConfigFromFile>, such as L<MooseX::SimpleConfig>,
+L<MooseX::Getopt>'s C<new_with_options> will load the configfile
+specified by the C<--configfile> option for you.
+
=head2 Supported Type Constraints
=over 4
projects / gitmo/MooseX-Getopt.git / blobdiff