Add gem_group support to generators

2 files changed, 21 insertions, 0 deletions

diff --git a/railties/guides/source/generators.textile b/railties/guides/source/generators.textile
index 2fa1d6e21d..3f990ef54b 100644
--- a/railties/guides/source/generators.textile
+++ b/railties/guides/source/generators.textile
@@ -449,6 +449,15 @@ The above code will put the following line into +Gemfile+:
 gem "devise", :git => "git://github.com/plataformatec/devise", :branch => "master"
 </ruby>
 
+h4. +gem_group+
+
+Wraps gem entries inside a group:
+
+<ruby>
+gem_group :development, :test do
+  gem "rspec-rails"
+end
+</ruby>
 
 h4. +add_source+
 
diff --git a/railties/guides/source/rails_application_templates.textile b/railties/guides/source/rails_application_templates.textile
index 566f8a0bdd..c3c8af4d3a 100644
--- a/railties/guides/source/rails_application_templates.textile
+++ b/railties/guides/source/rails_application_templates.textile
@@ -60,6 +60,18 @@ Please note that this will NOT install the gems for you and you will have to run
 bundle install
 </ruby>
 
+h4. gem_group(*names, &block)
+
+Wraps gem entries inside a group.
+
+For example, if you want to load +rspec-rails+ only in +development+ and +test+ group:
+
+<ruby>
+gem_group :development, :test do
+  gem "rspec-rails"
+end
+</ruby>
+
 h4. add_source(source, options = {})
 
 Adds the given source to the generated application's +Gemfile+.