X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=catagits%2FCatalyst-Runtime.git;a=blobdiff_plain;f=lib%2FCatalyst%2FScriptRunner.pm;h=7b803771e339b7623e069adb819db4e41539e105;hp=08fd66e2c266fef3a73825d5a9baac871f97e39d;hb=15c40696c8e1e840553573af61037032cc16768d;hpb=1628b022d9ba6ae63b8b4780065f4e3e71b4e1f8

diff --git a/lib/Catalyst/ScriptRunner.pm b/lib/Catalyst/ScriptRunner.pm
index 08fd66e..7b80377 100644
--- a/lib/Catalyst/ScriptRunner.pm
+++ b/lib/Catalyst/ScriptRunner.pm
@@ -3,25 +3,55 @@ use Moose;
 use FindBin;
 use lib;
 use File::Spec;
-use namespace::autoclean;
+use Class::Load qw/ load_first_existing_class load_optional_class /;
+use Catalyst::Utils;
+use namespace::autoclean -also => 'subclass_with_traits';
+use Try::Tiny;
 
-sub run {
-    my ($self, $class, $scriptclass) = @_;
-    my $classtoload = "${class}::Script::$scriptclass";
+sub find_script_class {
+    my ($self, $app, $script) = @_;
+    return load_first_existing_class("${app}::Script::${script}", "Catalyst::Script::$script");
+}
 
-    lib->import(File::Spec->catdir($FindBin::Bin, '..', 'lib'));
+sub find_script_traits {
+    my ($self, @try) = @_;
 
-    # FIXME - Error handling / reporting
-    if ( eval { Class::MOP::load_class($classtoload) } ) {
-    }
-    else {
-        $classtoload = "Catalyst::Script::$scriptclass";
-        Class::MOP::load_class($classtoload);
+    return grep { load_optional_class($_) } @try;
+}
+
+sub subclass_with_traits {
+    my ($base, @traits) = @_;
+
+    my $meta = Class::MOP::class_of($base)->create_anon_class(
+        superclasses => [ $base   ],
+        roles        => [ @traits ],
+        cache        => 1,
+    );
+    $meta->add_method(meta => sub { $meta });
+
+    return $meta->name;
+}
+
+sub run {
+    my ($self, $appclass, $scriptclass) = @_;
+
+    if (my $home = Catalyst::Utils::find_home_unloaded_in_checkout()) {
+        lib->import(File::Spec->catdir($home, 'lib'));
     }
-    $classtoload->new_with_options( application_name => $class )->run;
+
+    my $class = $self->find_script_class($appclass, $scriptclass);
+
+    my @possible_traits = ("${appclass}::TraitFor::Script::${scriptclass}", "${appclass}::TraitFor::Script");
+    my @traits = $self->find_script_traits(@possible_traits);
+
+    $class = subclass_with_traits($class, @traits)
+        if @traits;
+
+    $class->new_with_options( application_name => $appclass )->run;
 }
 
 __PACKAGE__->meta->make_immutable;
+1;
 
 =head1 NAME
 
@@ -35,8 +65,40 @@ Catalyst::ScriptRunner - The Catalyst Framework script runner
 
 =head1 DESCRIPTION
 
-This class is responsible for running scripts, either in the application specific namespace
-(e.g. C<MyApp::Script::Server>), or the Catalyst namespace (e.g. C<Catalyst::Script::Server>)
+This class is responsible for loading and running scripts, either in the
+application specific namespace
+(e.g. C<MyApp::Script::Server>), or the Catalyst namespace (e.g. C<Catalyst::Script::Server>).
+
+If your application contains a custom script, then it will be used in preference to the generic
+script, and is expected to sub-class the standard script.
+
+=head1 TRAIT LOADING
+
+Catalyst will automatically load and apply roles to the scripts in your
+application.
+
+C<MyApp::TraitFor::Script> will be loaded if present, and will be applied to B<ALL>
+scripts.
+
+C<MyApp::TraitFor::Script::XXXX> will be loaded (if present) and for script
+individually.
+
+=head1 METHODS
+
+=head2 run ($application_class, $scriptclass)
+
+Called with two parameters, the application class (e.g. MyApp)
+and the script class, (i.e. one of Server/FastCGI/CGI/Create/Test)
+
+=head2 find_script_class ($appname, $script_name)
+
+Finds and loads the class for the script, trying the application specific
+script first, and falling back to the generic script. Returns the script
+which was loaded.
+
+=head2 find_script_traits ($appname, @try)
+
+Finds and loads a set of traits. Returns the list of traits which were loaded.
 
 =head1 AUTHORS