From: Yuval Kogman <nothingmuch@woobling.org>
Date: Wed, 4 Jul 2007 23:24:55 +0000 (+0000)
Subject: Refactor MooseX::Getopt into smaller methods
X-Git-Tag: 0_06~4
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=ee211848ee47820075d174225f566dbb38517657;p=gitmo%2FMooseX-Getopt.git

Refactor MooseX::Getopt into smaller methods
---

diff --git a/lib/MooseX/Getopt.pm b/lib/MooseX/Getopt.pm
index b9a5a1d..c773e22 100644
--- a/lib/MooseX/Getopt.pm
+++ b/lib/MooseX/Getopt.pm
@@ -16,7 +16,55 @@ has extra_argv => (is => 'rw', isa => 'ArrayRef');
 sub new_with_options {
     my ($class, %params) = @_;
 
-    my (@options, %name_to_init_arg);
+    my %processed = $class->_parse_argv( options => [ $class->_attrs_to_options( %params ) ] );
+
+    $class->new(
+        ARGV       => $processed{argv_copy},
+        extra_argv => $processed{argv},
+        %params, # explicit params to ->new
+        %{ $processed{params} }, # params from CLI
+    );
+}
+
+sub _parse_argv {
+    my ( $class, %params ) = @_;
+
+    local @ARGV = @{ $params{argv} || \@ARGV };
+
+    my ( @options, %name_to_init_arg, %options );
+
+    foreach my $opt ( @{ $params{options} } ) {
+        push @options, $opt->{opt_string};
+        $name_to_init_arg{ $opt->{name} } = $opt->{init_arg};
+    }
+
+    # Get a clean copy of the original @ARGV
+    my $argv_copy = [ @ARGV ];
+
+    {
+        local $SIG{__WARN__} = sub { die $_[0] };
+        Getopt::Long::GetOptions(\%options, @options);
+    }
+
+    # Get a copy of the Getopt::Long-mangled @ARGV
+    my $argv_mangled = [ @ARGV ];
+
+    return (
+        argv_copy => $argv_copy,
+        argv      => $argv_mangled,
+        params    => {
+            map { 
+                $name_to_init_arg{$_} => $options{$_} 
+            } keys %options,   
+        }
+    );
+}
+
+sub _attrs_to_options {
+    my $class = shift;
+
+    my @options;
+
     foreach my $attr ($class->meta->compute_all_applicable_attributes) {
         my $name = $attr->name;
 
@@ -29,9 +77,7 @@ sub new_with_options {
         else {
             next if $name =~ /^_/;
         }
-        
-        $name_to_init_arg{$name} = $attr->init_arg;        
-        
+
         my $opt_string = $aliases
             ? join(q{|}, $name, @$aliases)
             : $name;
@@ -42,39 +88,17 @@ sub new_with_options {
                 $opt_string .= MooseX::Getopt::OptionTypeMap->get_option_type($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_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;