Adding a mash_button function

Signed-off-by: Jesse Millar <jesse.millar@microsoft.com>

run_controller_cli.py

@@ -180,6 +180,39 @@ async def _main(args):
         # add the script from above
         cli.add_command('test_buttons', _run_test_controller_buttons)
 
+        # Mash a button command
+        async def mash_button(*args):
+            """
+            mash_button - Mash a specified button at a set interval
+
+            Usage:
+                mash_button <button> <interval>
+            """
+
+            if not len(args) == 2:
+                raise ValueError('"mash_button" command requires a button and interval as arguments!')
+
+            # waits until controller is fully connected
+            await controller_state.connect()
+
+            user_input = asyncio.ensure_future(
+                ainput(prompt='Pressing the '+args[0]+' button every '+args[1]+' seconds forever... Press <enter> to stop.')
+            )
+
+            # push a button repeatedly until user input
+            while not user_input.done():
+                await button_push(controller_state, args[0])
+                await asyncio.sleep(float(args[1]))
+
+                if user_input.done():
+                    break
+
+            # await future to trigger exceptions in case something went wrong
+            await user_input
+
+        # add the script from above
+        cli.add_command('mash_button', mash_button)
+
         # Create amiibo command
         async def amiibo(*args):
             """