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1 | |
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2 | package MooseX::Getopt::GLD; |
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3 | use Moose::Role; |
4 | |
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5 | use Getopt::Long::Descriptive; |
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6 | |
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7 | with 'MooseX::Getopt::Basic'; |
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8 | |
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9 | around _getopt_spec => sub { |
10 | shift; |
11 | shift->_gld_spec(@_); |
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12 | }; |
13 | |
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14 | around _getopt_get_options => sub { |
15 | shift; |
16 | my ($class, $params, $opt_spec) = @_; |
17 | return Getopt::Long::Descriptive::describe_options($class->_usage_format(%$params), @$opt_spec); |
18 | }; |
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19 | |
20 | sub _gld_spec { |
21 | my ( $class, %params ) = @_; |
22 | |
23 | my ( @options, %name_to_init_arg ); |
24 | |
25 | my $constructor_params = $params{params}; |
26 | |
27 | foreach my $opt ( @{ $params{options} } ) { |
28 | push @options, [ |
29 | $opt->{opt_string}, |
30 | $opt->{doc} || ' ', # FIXME new GLD shouldn't need this hack |
31 | { |
32 | ( ( $opt->{required} && !exists($constructor_params->{$opt->{init_arg}}) ) ? (required => $opt->{required}) : () ), |
33 | # NOTE: |
34 | # remove this 'feature' because it didn't work |
35 | # all the time, and so is better to not bother |
36 | # since Moose will handle the defaults just |
37 | # fine anyway. |
38 | # - SL |
39 | #( exists $opt->{default} ? (default => $opt->{default}) : () ), |
40 | }, |
41 | ]; |
42 | |
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43 | my $identifier = lc($opt->{name}); |
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44 | $identifier =~ s/\W/_/g; # Getopt::Long does this to all option names |
45 | |
46 | $name_to_init_arg{$identifier} = $opt->{init_arg}; |
47 | } |
48 | |
49 | return ( \@options, \%name_to_init_arg ); |
50 | } |
51 | |
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52 | no Moose::Role; 1; |
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53 | |
54 | __END__ |
55 | |
56 | =pod |
57 | |
58 | =head1 NAME |
59 | |
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60 | MooseX::Getopt::GLD - A Moose role for processing command line options with Getopt::Long::Descriptive |
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61 | |
62 | =head1 SYNOPSIS |
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63 | |
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64 | ## In your class |
65 | package My::App; |
66 | use Moose; |
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67 | |
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68 | with 'MooseX::Getopt::GLD'; |
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69 | |
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70 | has 'out' => (is => 'rw', isa => 'Str', required => 1); |
71 | has 'in' => (is => 'rw', isa => 'Str', required => 1); |
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72 | |
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73 | # ... rest of the class here |
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74 | |
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75 | ## in your script |
76 | #!/usr/bin/perl |
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77 | |
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78 | use My::App; |
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79 | |
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80 | my $app = My::App->new_with_options(); |
81 | # ... rest of the script here |
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82 | |
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83 | ## on the command line |
84 | % perl my_app_script.pl -in file.input -out file.dump |
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85 | |
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86 | =head1 DESCRIPTION |
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87 | |
88 | =head1 COPYRIGHT AND LICENSE |
89 | |
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90 | Copyright 2007-2009 by Infinity Interactive, Inc. |
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91 | |
92 | L<http://www.iinteractive.com> |
93 | |
94 | This library is free software; you can redistribute it and/or modify |
95 | it under the same terms as Perl itself. |
96 | |
97 | =cut |