Run kumade:post_deploy if deployment succeeds.

README.md

@@ -14,7 +14,8 @@ After that, it packages assets using
 [Jammit](http://documentcloud.github.com/jammit/) (if it's installed), commits
 them, and pushes to origin.
 Then it force pushes to the correct Heroku remote, runs `rake db:migrate` on the
-Heroku app, and then restarts the app.
+Heroku app, and then restarts the app.  If all of this succeeds, it will
+also run the rake task `kumade:post_deploy` if it is defined.
 
 If any step fails, it immediately prints an error and stops the deploy
 process.

lib/kumade/deployer.rb

@@ -19,6 +19,7 @@ def deploy
         heroku.sync
         heroku.migrate_database
         heroku.restart_app
+        post_deploy_success
       rescue => deploying_error
         Kumade.configuration.outputter.error("#{deploying_error.class}: #{deploying_error.message}")
       ensure
@@ -33,6 +34,10 @@ def pre_deploy
       sync_origin
     end
 
+    def post_deploy_success
+      run_postdeploy_task
+    end
+
     def package_assets
       @packager.run
     end
@@ -66,5 +71,9 @@ def ensure_heroku_remote_exists
     def run_predeploy_task
       RakeTaskRunner.new("kumade:pre_deploy").invoke
     end
+
+    def run_postdeploy_task
+      RakeTaskRunner.new("kumade:post_deploy").invoke
+    end
   end
 end

spec/kumade/deployer_spec.rb

@@ -26,6 +26,27 @@
   end
 end
 
+describe Kumade::Deployer, "#post_deploy_success", :with_mock_outputter do
+  let(:rake_task_runner) { stub("RakeTaskRunner", :invoke => true) }
+
+  before do
+    Kumade::RakeTaskRunner.stubs(:new).with("kumade:post_deploy").returns(rake_task_runner)
+  end
+
+  it "calls the correct methods" do
+    subject.expects(:run_postdeploy_task)
+
+    subject.post_deploy_success
+  end
+
+  it "invokes the kumade:pre_deploy task" do
+    subject.post_deploy_success
+
+    Kumade::RakeTaskRunner.should have_received(:new).with("kumade:post_deploy")
+    rake_task_runner.should have_received(:invoke)
+  end
+end
+
 describe Kumade::Deployer, "#deploy", :with_mock_outputter do
   let(:remote_name) { 'staging' }
 
@@ -39,6 +60,7 @@
     subject.heroku.expects(:migrate_database)
     subject.heroku.expects(:restart_app)
     subject.expects(:post_deploy)
+    subject.expects(:post_deploy_success)
 
     subject.deploy
   end