sane-tag-music: handle multiple CLI paths by iterating a layer above

pkgs/additional/sane-scripts/src/sane-tag-music

@@ -854,7 +854,11 @@ class Gatherer:
         self.derive_tags = derive_tags
 
     def files(self) -> list[tuple[MediaFile, Tags]]:
-        files = self.walk_files(self.roots)
+        for root in self.roots:
+            yield from self.files_from(root)
+
+    def files_from(self, root: str) -> list[tuple[MediaFile, Tags]]:
+        files = self.walk_files(root)
 
         if self.derive_tags:
             files = list(files)
@@ -872,17 +876,16 @@ class Gatherer:
             if self.media_type is None or f.is_type(self.media_type):
                 yield f, tags
 
-    def walk_paths(self, *roots: str) -> None:
+    def walk_paths(self, root: str) -> None:
-        for root in roots:
+        if os.path.isdir(root):
-            if os.path.isdir(root):
+            for dir_, subdirs, files_ in os.walk(root):
-                for dir_, subdirs, files_ in os.walk(root):
+                for f in files_:
-                    for f in files_:
+                    yield os.path.join(dir_, f)
-                        yield os.path.join(dir_, f)
+        else:
-            else:
+            yield root
-                yield root
 
-    def walk_files(self, paths: list[str]):
+    def walk_files(self, root: str):
-        for path_ in self.walk_paths(*paths):
+        for path_ in self.walk_paths(root):
             file_ = MediaFile.new(path_)
             yield file_, Tags()