improve argument and error handling

Author: TimidRobot

scripts/1-fetch/github_fetch.py

@@ -71,7 +71,10 @@ def parse_arguments():
         action="store_true",
         help="Enable git actions (fetch, merge, add, commit, and push)",
     )
-    return parser.parse_args()
+    args = parser.parse_args()
+    if not args.enable_save and args.enable_git:
+        parser.error("--enable-git requires --enable-save")
+    return args
 
 
 def check_for_completion():
@@ -190,7 +193,8 @@ def main():
             LOGGER.error(e.message)
         sys.exit(e.exit_code)
     except SystemExit as e:
-        LOGGER.error(f"System exit with code: {e.code}")
+        if e.code != 0:
+            LOGGER.error(f"System exit with code: {e.code}")
         sys.exit(e.code)
     except KeyboardInterrupt:
         LOGGER.info("(130) Halted via KeyboardInterrupt.")