OSError: [Errno 36] File name too long while looking for sidecar files

[mgedmin]

I have some stories from online magazines saved on disk using a browser's Save As: Web page (complete) feature, which stores all the resources (CSS, images, JS) in a subdirectory and rewrites the HTML to link to those.

lib2opds 0.1.2 failed while trying to process one of these with a

Traceback (most recent call last):
  File "/home/mg/.local/bin/lib2opds", line 8, in <module>
    sys.exit(cli())
             ^^^^^
  File "/home/mg/.local/pipx/venvs/lib2opds/lib/python3.12/site-packages/lib2opds/app.py", line 81, in cli
    opds_catalog = lib2odps(config, config.library_dir)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/mg/.local/pipx/venvs/lib2opds/lib/python3.12/site-packages/lib2opds/opds.py", line 279, in lib2odps
    feed_by_directory = dir2odps(config, config.library_dir, feed_root, feed_root)
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/mg/.local/pipx/venvs/lib2opds/lib/python3.12/site-packages/lib2opds/opds.py", line 67, in dir2odps
    dir_feed: NavigationFeed | AcquisitionFeed = dir2odps(
                                                 ^^^^^^^^^
  File "/home/mg/.local/pipx/venvs/lib2opds/lib/python3.12/site-packages/lib2opds/opds.py", line 67, in dir2odps
    dir_feed: NavigationFeed | AcquisitionFeed = dir2odps(
                                                 ^^^^^^^^^
  File "/home/mg/.local/pipx/venvs/lib2opds/lib/python3.12/site-packages/lib2opds/opds.py", line 67, in dir2odps
    dir_feed: NavigationFeed | AcquisitionFeed = dir2odps(
                                                 ^^^^^^^^^
  [Previous line repeated 2 more times]
  File "/home/mg/.local/pipx/venvs/lib2opds/lib/python3.12/site-packages/lib2opds/opds.py", line 84, in dir2odps
    p.load_metadata()
  File "/home/mg/.local/pipx/venvs/lib2opds/lib/python3.12/site-packages/lib2opds/publications.py", line 153, in load_metadata
    self._load_metadata_from_sidecar_files(self.fpath)
  File "/home/mg/.local/pipx/venvs/lib2opds/lib/python3.12/site-packages/lib2opds/publications.py", line 121, in _load_metadata_from_sidecar_files
    if not self._load_metadata_from_sidecar_file(get_metadata_sidecar_file(fpath)):
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/mg/.local/pipx/venvs/lib2opds/lib/python3.12/site-packages/lib2opds/publications.py", line 82, in _load_metadata_from_sidecar_file
    if not sidecar.read():
           ^^^^^^^^^^^^^^
  File "/home/mg/.local/pipx/venvs/lib2opds/lib/python3.12/site-packages/lib2opds/sidecars.py", line 69, in read
    if not self.fpath.is_file():
           ^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/pathlib.py", line 894, in is_file
    return S_ISREG(self.stat().st_mode)
                   ^^^^^^^^^^^
  File "/usr/lib/python3.12/pathlib.py", line 842, in stat
    return os.stat(self, follow_symlinks=follow_symlinks)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: [Errno 36] File name too long: 'scifi/Premee Mohamed/More Tomorrow (short story)/raw/More Tomorrow—Premee Mohamed — Automata_files/migXv4fDOuVrUJ1bRkfR6Zommvc_ywWY9tlq3FI62lSfeGC2fFHN4UJLFRbh52jhWD9o5eIkFDS3ZRbDjR9u5Q6UZRqXFhI3jy78MPG0-cNGdKucdY80d18zScClZ1FGjkoDSWmyScmDSeBRZPoRdhXCjWmXdhuyieBkZWZTZWS0jhNlOeTz-etlZcUodcooda4nOAZD-ew0SaBujW48Sagyjh90jhNlOeUzjhBC-eNDifUaiaS0jWmXdhuy.info'

This file does not exist, but there is a migXv4fDOuVrUJ1bRkfR6Zommvc_ywWY9tlq3FI62lSfeGC2fFHN4UJLFRbh52jhWD9o5eIkFDS3ZRbDjR9u5Q6UZRqXFhI3jy78MPG0-cNGdKucdY80d18zScClZ1FGjkoDSWmyScmDSeBRZPoRdhXCjWmXdhuyieBkZWZTZWS0jhNlOeTz-etlZcUodcooda4nOAZD-ew0SaBujW48Sagyjh90jhNlOeUzjhBC-eNDifUaiaS0jWmXdhuy.js in that directory.