new: Add --defaultconfig so you can choose a default config to load.

nestris_ocr/config.py

@@ -5,6 +5,7 @@
 from nestris_ocr.utils.sub_image import spawn_subimage
 from nestris_ocr.utils.program_args import args
 
+
 # fmt: off
 CONFIG_DEFAULTS = {
     "player.name": "",
@@ -91,10 +92,23 @@ def __init__(self, path, auto_save=True):
             with open(path, "r") as file:
                 self.data = json.load(file, object_pairs_hook=OrderedDict)
         except Exception:
-            # override with default on non-existent file or parsing error
-            self.data = OrderedDict(CONFIG_DEFAULTS)
+            self.data = self.load_defaultconfig()
             self.save()
 
+    def load_defaultconfig(self):
+        result = None
+        if args.defaultconfig is not None:
+            try:
+                with open(args.defaultconfig, "r") as file:
+                    result = json.load(file, object_pairs_hook=OrderedDict)
+            except Exception:
+                result = None
+
+        if result is None:
+            result = OrderedDict(CONFIG_DEFAULTS)
+
+        return result
+
     def __getitem__(self, key):
         if key not in CONFIG_DEFAULTS:
             raise KeyError("Invalid key %s" % (key,))

nestris_ocr/utils/program_args.py

@@ -10,6 +10,7 @@ def init_args():
     parser.add_argument(
         "--calibrate", help="Run calibrator rather than scanner", action="store_true"
     )
+    parser.add_argument("--defaultconfig", default=None)
     args = parser.parse_args()