Added --group-nomatch-behaviour option

If --group option is used and none of chapter group is matching with --group option, user now can use --group-nomatch-behaviour set to fallback, instead of ignoring unmatching chapters, the application will find another chapters

mangadex_downloader/chapter.py

@@ -632,6 +632,13 @@ def _check_chapter(self, chap):
                     if chap.user and group.id == chap.user.id:
                         group_check = True
 
+            if (
+                not group_check
+                and config.group_nomatch_behaviour == "fallback"
+                and self._check_duplicate(chap)
+            ):
+                return False
+
             if not group_check:
                 pbm.logger.debug(
                     f"Ignoring chapter {num_chap}, "

mangadex_downloader/cli/args_parser.py

@@ -217,8 +217,8 @@ def get_args(argv):
     )
 
     # Group related
-    group_group = parser.add_argument_group("Group")  # wtf group_group
-    group_group.add_argument(
+    grp_group = parser.add_argument_group("Group")
+    grp_group.add_argument(
         "--group",
         "-g",
         metavar="GROUP_ID",
@@ -227,6 +227,16 @@ def get_args(argv):
         "Filter with user also supported.",
         action="append",
     )
+    grp_group.add_argument(
+        "--group-nomatch-behaviour",
+        "-gnb",
+        choices=("ignore", "fallback"),
+        default=config.group_nomatch_behaviour,
+        help="Change behaviour for group filtering if it doesn't match. "
+        "By default, it set to 'ignore'. Which mean it will ignore the chapter "
+        "if the chapter doesn't match with specified group. If you set it to 'fallback' "
+        "the app will find another chapter if the chapter doesn't match with specified group",
+    )
 
     # Language related
     lang_group = parser.add_argument_group("Language")

mangadex_downloader/config/config.py

@@ -36,6 +36,7 @@
     validate_http_retries,
     validate_download_mode,
     validate_stacked_progress_bar_order,
+    validate_group_nomatch_behaviour,
     validate_log_level,
     validate_progress_bar_layout,
     validate_int,
@@ -116,6 +117,7 @@ class _Config:
         "no_metadata": (False, validate_bool),
         "page_size": (0, validate_int),
         "order": ("newest", validate_order),
+        "group_nomatch_behaviour": ("ignore", validate_group_nomatch_behaviour),
     }
     default_conf = {x: y for x, (y, _) in confs.items()}
 

mangadex_downloader/config/utils.py

@@ -52,6 +52,7 @@
     "validate_log_level",
     "validate_progress_bar_layout",
     "validate_stacked_progress_bar_order",
+    "validate_group_nomatch_behaviour",
     "load_env",
     "LazyLoadEnv",
     "ConfigTypeError",
@@ -329,3 +330,9 @@ def validate_order(val):
         raise ConfigTypeError(f"'{val}' is not valid order")
 
     return val
+
+
+def validate_group_nomatch_behaviour(val):
+    val = val.strip().lower()
+    if val not in ["ignore", "fallback"]:
+        raise ConfigTypeError(f"'{val}' is not valid order")