Optionally skip game selection menu (#72)

Add a new argument `--title` which will skip the game selection menu if
the given title is present by automatically managing that title.

Usage:
    `ammo --title "Skyrim Special Edition"`

Configure an alias in ~/.bashrc if this is the only title you will ever
want to manage with ammo.

ammo/bin/ammo

@@ -30,6 +30,14 @@ parser.add_argument(
     type=Path,
 )
 
+parser.add_argument(
+    "--title",
+    default="",
+    type=str,
+    metavar="TITLE",
+    help="manage a detected game with TITLE (skip game selection menu)",
+)
+
 args = parser.parse_args()
 
 controller = GameController(args)

ammo/controller/game.py

@@ -241,6 +241,14 @@ def __init__(self, args):
             )
         elif len(self.games) == 1:
             self.manage_game(0)
+        elif args.title:
+            if args.title in [i.name for i in self.games]:
+                index = [i.name for i in self.games].index(args.title)
+                self.manage_game(index)
+            else:
+                raise ValueError(
+                    f"Could not find {args.title=} in {[i.name for i in self.games]}"
+                )
         else:
             self.populate_index_commands()