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1 | package MooseX::Getopt::GLD; |
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2 | # ABSTRACT: A Moose role for processing command line options with Getopt::Long::Descriptive |
3 | |
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4 | use Moose::Role; |
5 | |
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6 | use Getopt::Long::Descriptive 0.081; |
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7 | |
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8 | with 'MooseX::Getopt::Basic'; |
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9 | |
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10 | around _getopt_spec => sub { |
11 | shift; |
12 | shift->_gld_spec(@_); |
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13 | }; |
14 | |
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15 | around _getopt_get_options => sub { |
16 | shift; |
17 | my ($class, $params, $opt_spec) = @_; |
18 | return Getopt::Long::Descriptive::describe_options($class->_usage_format(%$params), @$opt_spec); |
19 | }; |
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20 | |
21 | sub _gld_spec { |
22 | my ( $class, %params ) = @_; |
23 | |
24 | my ( @options, %name_to_init_arg ); |
25 | |
26 | my $constructor_params = $params{params}; |
27 | |
28 | foreach my $opt ( @{ $params{options} } ) { |
29 | push @options, [ |
30 | $opt->{opt_string}, |
31 | $opt->{doc} || ' ', # FIXME new GLD shouldn't need this hack |
32 | { |
33 | ( ( $opt->{required} && !exists($constructor_params->{$opt->{init_arg}}) ) ? (required => $opt->{required}) : () ), |
34 | # NOTE: |
35 | # remove this 'feature' because it didn't work |
36 | # all the time, and so is better to not bother |
37 | # since Moose will handle the defaults just |
38 | # fine anyway. |
39 | # - SL |
40 | #( exists $opt->{default} ? (default => $opt->{default}) : () ), |
41 | }, |
42 | ]; |
43 | |
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44 | my $identifier = lc($opt->{name}); |
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45 | $identifier =~ s/\W/_/g; # Getopt::Long does this to all option names |
46 | |
47 | $name_to_init_arg{$identifier} = $opt->{init_arg}; |
48 | } |
49 | |
50 | return ( \@options, \%name_to_init_arg ); |
51 | } |
52 | |
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53 | no Moose::Role; |
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54 | |
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55 | 1; |
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56 | |
57 | =head1 SYNOPSIS |
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58 | |
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59 | ## In your class |
60 | package My::App; |
61 | use Moose; |
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62 | |
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63 | with 'MooseX::Getopt::GLD'; |
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64 | |
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65 | has 'out' => (is => 'rw', isa => 'Str', required => 1); |
66 | has 'in' => (is => 'rw', isa => 'Str', required => 1); |
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67 | |
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68 | # ... rest of the class here |
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69 | |
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70 | ## in your script |
71 | #!/usr/bin/perl |
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72 | |
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73 | use My::App; |
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74 | |
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75 | my $app = My::App->new_with_options(); |
76 | # ... rest of the script here |
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77 | |
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78 | ## on the command line |
79 | % perl my_app_script.pl -in file.input -out file.dump |
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80 | |
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81 | =cut |