Add rake go:fmt

Author: sue445

_gem/README.md

@@ -48,6 +48,7 @@ Following tasks are generated
 
 * `rake go:test`
 * `rake go:testrace`
+* `rake go:fmt`
 
 #### Example (With config)
 ```ruby
@@ -66,6 +67,7 @@ Following tasks are generated
 
 * `rake go5:test`
 * `rake go5:testrace`
+* `rake go5:fmt`
 
 #### Available configurations
 * `task_namespace` : task namespace (default: `:go`)

_gem/lib/go_gem/rake_task.rb

@@ -78,6 +78,13 @@ def initialize(gem_name)
             sh RakeTask.build_env_vars, "#{go_bin_path} test #{go_test_args} -race ./..."
           end
         end
+
+        desc "Run go fmt"
+        task(:fmt) do
+          within_target_dir do
+            sh "#{go_bin_path} fmt ./..."
+          end
+        end
       end
     end
 

_gem/spec/go_gem/rake_task_spec.rb

@@ -16,6 +16,7 @@
 
       it { should be_task_defined("go:test") }
       it { should be_task_defined("go:testrace") }
+      it { should be_task_defined("go:fmt") }
     end
 
     context "with params" do
@@ -30,6 +31,7 @@
 
       it { should be_task_defined("go5:test") }
       it { should be_task_defined("go5:testrace") }
+      it { should be_task_defined("go5:fmt") }
     end
   end
 end