[BUGFIX] Invalid cross-device link workaround

src/ytdl_sub/utils/ffmpeg.py

@@ -1,4 +1,3 @@
-import shutil
 import subprocess
 import tempfile
 from typing import Dict
@@ -7,6 +6,7 @@ from typing import Optional
 
 from ytdl_sub.utils.chapters import Chapters
 from ytdl_sub.utils.exceptions import ValidationException
+from ytdl_sub.utils.file_handler import FileHandler
 from ytdl_sub.utils.logger import Logger
 
 logger = Logger.get(name="ffmpeg")
@@ -132,8 +132,7 @@ def set_ffmpeg_metadata_chapters(
                 output_file_path,
             ]
         )
-
-        shutil.move(src=output_file_path, dst=file_path)
+        FileHandler.move(output_file_path, file_path)
 
 
 def add_ffmpeg_metadata_key_values(file_path: str, key_values: Dict[str, str]) -> None:
@@ -154,4 +153,4 @@ def add_ffmpeg_metadata_key_values(file_path: str, key_values: Dict[str, str]) -
     ffmpeg_args.extend(["-codec", "copy", output_file_path])
 
     FFMPEG.run(ffmpeg_args)
-    shutil.move(src=output_file_path, dst=file_path)
+    FileHandler.move(output_file_path, file_path)

src/ytdl_sub/utils/file_handler.py

@@ -353,8 +353,23 @@ class FileHandler:
             Source file
         dst_file_path
             Destination file
+
+        Raises
+        ------
+        OSError
+            Cross-device link workaround
         """
-        shutil.move(src=src_file_path, dst=dst_file_path)
+        try:
+            shutil.move(src=src_file_path, dst=dst_file_path)
+        except OSError as os_error_exc:
+            # Invalid cross-device link
+            # Can happen from using os.rename under the hood, which requires the two file on the
+            # same filesystem. Work around it by copying and deleting the file
+            if os_error_exc.errno == 18:
+                cls.copy(src_file_path, dst_file_path)
+                cls.delete(src_file_path)
+            else:
+                raise
 
     @classmethod
     def delete(cls, file_path: Union[str, Path]):