# ============================================================================
package MooseX::App::Meta::Role::Attribute::Option;
# ============================================================================
use utf8;
use 5.010;
use namespace::autoclean;
use Moose::Role;
use Moose::Util::TypeConstraints;
subtype 'MooseX::App::Types::CmdAliases'
=> as 'ArrayRef';
coerce 'MooseX::App::Types::CmdAliases'
=> from 'Str'
=> via { [$_] };
subtype 'MooseX::App::Types::CmdTypes'
=> as enum([qw(proto option parameter)]);
has 'cmd_type' => (
is => 'rw',
isa => 'MooseX::App::Types::CmdTypes',
predicate => 'has_cmd_type',
);
has 'cmd_tags' => (
is => 'rw',
isa => 'ArrayRef[Str]',
predicate => 'has_cmd_tags',
);
has 'cmd_flag' => (
is => 'rw',
isa => 'Str',
predicate => 'has_cmd_flag',
);
has 'cmd_aliases' => (
is => 'rw',
isa => 'MooseX::App::Types::CmdAliases',
predicate => 'has_cmd_aliases',
coerce => 1,
);
has 'cmd_split' => (
is => 'rw',
isa => union([qw(Str RegexpRef)]),
predicate => 'has_cmd_split',
);
has 'cmd_position' => (
is => 'rw',
isa => 'Int',
default => 0,
);
no Moose::Util::TypeConstraints;
my $GLOBAL_COUNTER = 1;
around 'new' => sub {
my $orig = shift;
my $class = shift;
my $self = $class->$orig(@_);
if ($self->has_cmd_type) {
if ($self->cmd_position == 0) {
$GLOBAL_COUNTER++;
$self->cmd_position($GLOBAL_COUNTER);
}
}
return $self;
};
sub cmd_is_bool {
my ($self) = @_;
if ($self->has_type_constraint
&& $self->type_constraint->is_a_type_of('Bool')) {
# Bool and defaults to true
if ($self->has_default
&& ! $self->is_default_a_coderef
&& $self->default == 1) {
return 0;
## Bool and is required
#} elsif (! $self->has_default
# && $self->is_required) {
# return 0;
}
# Ordinary bool
return 1;
}
return undef
}
sub cmd_usage_description {
my ($self) = @_;
my $description = ($self->has_documentation) ? $self->documentation : '';
my @tags = $self->cmd_tags_list();
if (scalar @tags) {
$description .= ' '
if $description;
$description .= '['.join('; ',@tags).']';
}
return $description
}
sub cmd_usage_name {
my ($self) = @_;
if ($self->cmd_type eq 'parameter') {
return $self->cmd_name_primary;
} else {
return join(' ',
map { (length($_) == 1) ? "-$_":"--$_" }
$self->cmd_name_possible);
}
}
sub cmd_name_primary {
my ($self) = @_;
if ($self->has_cmd_flag) {
return $self->cmd_flag;
} else {
return $self->name;
}
}
sub cmd_name_possible {
my ($self) = @_;
my @names = ($self->cmd_name_primary);
if ($self->has_cmd_aliases) {
push(@names, @{$self->cmd_aliases});
}
my $bool = $self->cmd_is_bool();
return @names;
}
sub cmd_tags_list {
my ($self) = @_;
my @tags;
if ($self->is_required
&& ! $self->is_lazy_build
&& ! $self->has_default) {
push(@tags,'Required')
}
if ($self->has_default && ! $self->is_default_a_coderef) {
if ($self->has_type_constraint
&& $self->type_constraint->is_a_type_of('Bool')) {
# if ($attribute->default) {
# push(@tags,'Default:Enabled');
# } else {
# push(@tags,'Default:Disabled');
# }
} else {
push(@tags,'Default:"'.$self->default.'"');
}
}
if ($self->has_type_constraint) {
my $type_constraint = $self->type_constraint;
if ($type_constraint->is_subtype_of('ArrayRef')) {
if ($self->has_cmd_split) {
my $split = $self->cmd_split;
if (ref($split) eq 'Regexp') {
$split = "$split";
$split =~ s/^\(\?\^\w*:(.+)\)$/$1/x;
}
push(@tags,'Multiple','Split by "'.$split.'"');
} else {
push(@tags,'Multiple');
}
} elsif ($type_constraint->is_a_type_of('HashRef')) {
push(@tags,'Key-Value');
}
unless ($self->should_coerce) {
if ($type_constraint->is_a_type_of('Int')) {
push(@tags,'Integer');
} elsif ($type_constraint->is_a_type_of('Num')) {
push(@tags ,'Number');
} elsif ($type_constraint->is_a_type_of('Bool')) {
push(@tags ,'Flag');
}
}
}
if ($self->can('cmd_tags')
&& $self->can('cmd_tags')
&& $self->has_cmd_tags) {
push(@tags,@{$self->cmd_tags});
}
return @tags;
}
{
package Moose::Meta::Attribute::Custom::Trait::AppOption;
use strict;
use warnings;
sub register_implementation { return 'MooseX::App::Meta::Role::Attribute::Option' }
}
1;
=pod
=encoding utf8
=head1 NAME
MooseX::App::Meta::Role::Attribute::Option - Meta attribute role for options
=head1 DESCRIPTION
This meta attribute role will automatically be applied to all attributes
that should be used as options. This documentation is only of interest if you
intent to write plugins for MooseX-App.
=head1 ACCESSORS
=head2 cmd_flag
Use this name instead of the attribute name as the option name
=head2 cmd_type
Option to mark if this attribute should be used as an option or parameter value.
Allowed values are
=over
=item * option - Command line option
=item * proto - Command line option that should be processed first (eg. a config-file option that sets other attribues)
=item * parameter - Positional parameter command line value
=back
=head2 cmd_aliases
Arrayref of alternative option names
=head2 cmd_tags
Extra option tags displayed in the usage information (in brackets)
=head2 cmd_position
Indicates the order of the parameters
=head2 cmd_split
Splits the value using the given separator or expression.
=head1 METHODS
=head2 cmd_name_possible
my @names = $attribute->cmd_name_possible();
Returns a list of all possible option names.
=head2 cmd_name_primary
my $name = $attribute->cmd_name_primary();
Returns the primary option name
=head2 cmd_usage_name
my $name = $attribute->cmd_usage_name();
Returns the name as used by the usage text
=head2 cmd_usage_description
my $name = $attribute->cmd_usage_description();
Returns the description as used by the usage text
=head2 cmd_tags_list
my @tags = $attribute->cmd_tags_list();
Returns a list of tags
=head2 cmd_is_bool
my $bool = $attribute->cmd_is_bool();
Returns true, false or undef depending on the type constraint and default
of the attribute:
=over
=item * undef: Does not have a boolean type constraint
=item * true: Has a boolean type constraint
=item * false: Has a boolean type constraint, and a true default value
=back
=cut