Bug 1281062 - Create Action Tasks to schedule new jobs. r=dustin

MozReview-Commit-ID: 5MvqLfGrlLC

taskcluster/mach_commands.py

@@ -153,6 +153,30 @@ class MachCommands(MachCommandBase):
             traceback.print_exc()
             sys.exit(1)
 
+    @SubCommand('taskgraph', 'action-task',
+                description="Run the action task")
+    @CommandArgument('--root', '-r',
+                     default='taskcluster/ci',
+                     help="root of the taskgraph definition relative to topsrcdir")
+    @CommandArgument('--decision-id',
+                     required=True,
+                     help="Decision Task ID of the reference decision task")
+    @CommandArgument('--task-labels',
+                     required=True,
+                     help='Comma separated list of task labels to be scheduled')
+    def taskgraph_action(self, **options):
+        """Run the action task: Generates a task graph using the set of labels
+        provided in the task-labels parameter. It uses the full-task file of
+        the gecko decision task."""
+
+        import taskgraph.action
+        try:
+            self.setup_logging()
+            return taskgraph.action.taskgraph_action(options)
+        except Exception:
+            traceback.print_exc()
+            sys.exit(1)
+
     def setup_logging(self, quiet=False, verbose=True):
         """
         Set up Python logging for all loggers, sending results to stderr (so