Added lazy typing for generate, such that ./script/generate cn == ./script/generate controller and the likes #1051 [k@v2studio.com]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1137 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 9 insertions, 3 deletions

diff --git a/railties/lib/rails_generator/lookup.rb b/railties/lib/rails_generator/lookup.rb
index 00b78ce645..538e0f55ea 100644
--- a/railties/lib/rails_generator/lookup.rb
+++ b/railties/lib/rails_generator/lookup.rb
@@ -109,9 +109,15 @@ module Rails
         def lookup(generator_name)
           @found ||= {}
           generator_name = generator_name.to_s.downcase
-          @found[generator_name] ||= cache.find { |spec|
-            spec.name == generator_name
-          } or raise GeneratorError, "Couldn't find '#{generator_name}' generator"
+          @found[generator_name] ||= cache.find { |spec| spec.name == generator_name }
+          unless @found[generator_name] 
+            chars = generator_name.scan(/./).map{|c|"#{c}.*?"}
+            rx = /^#{chars}$/
+            gns = cache.select{|spec| spec.name =~ rx }
+            @found[generator_name] ||= gns.first if gns.length == 1
+            raise GeneratorError, "Pattern '#{generator_name}' matches more than one generator: #{gns.map{|sp|sp.name}.join(', ')}" if gns.length > 1
+          end
+          @found[generator_name] or raise GeneratorError, "Couldn't find '#{generator_name}' generator"
         end
 
         # Convenience method to lookup and instantiate a generator.