- Add build notifications back in

- Fix spelling mistake
- Add the sha output as part of the build script

buildman/component/buildcomponent.py

@@ -74,11 +74,14 @@ class BuildComponent(BaseComponent):
 
     yield trollius.From(self._set_status(ComponentStatus.BUILDING))
 
+    # Send the notification that the build has started.
+    build_job.send_notification('build_start')
+
     # Retrieve the job's buildpack.
     buildpack_url = self.user_files.get_file_url(build_job.repo_build.resource_key,
                                                  requires_cors=False)
 
-    logger.debug('Retreiving build package: %s', buildpack_url)
+    logger.debug('Retrieving build package: %s', buildpack_url)
     buildpack = None
     try:
       buildpack = BuildPackage.from_url(buildpack_url)
@@ -262,6 +265,9 @@ class BuildComponent(BaseComponent):
       result.result()
       self._build_status.set_phase(BUILD_PHASE.COMPLETE)
       trollius.async(self._build_finished(BuildJobResult.COMPLETE))
+
+      # Send the notification that the build has completed successfully.
+      build_job.send_notification('build_success')
     except ApplicationError as aex:
       worker_error = WorkerError(aex.error, aex.kwargs.get('base_error'))
 
@@ -269,6 +275,9 @@ class BuildComponent(BaseComponent):
       self._build_status.set_error(worker_error.public_message(), worker_error.extra_data(),
                                    internal_error=worker_error.is_internal_error())
 
+      # Send the notification that the build has failed.
+      build_job.send_notification('build_failure', error_message=worker_error.public_message())
+
       # Mark the build as completed.
       if worker_error.is_internal_error():
         trollius.async(self._build_finished(BuildJobResult.INCOMPLETE))