Files
LEDMatrix/test
ChuckandClaude Opus 5 1d51efe4c7 fix(backup): restore over existing files on hosts without os.chown (#592)
_copy_file() replaces each restored file and then carries the previous
owner across with os.chown. On Windows os.chown does not exist and
st_uid/st_gid are 0 rather than absent, so the ownership branch always
ran and raised AttributeError. That is not an OSError, so it escaped
every per-section handler in restore_backup(): a restore over any
existing config aborted at config.json and restored nothing.

Skip the ownership step where os.chown is missing, as
auto_update_setup.py already does. No change on POSIX.

test_restore_over_a_file_the_user_cannot_write simulates root-owned
files with chmod 0o444; on Windows that sets the read-only attribute,
which blocks any rename over the file, so it is skipped there. The
modes the app writes (0o644/0o640/0o600) replace fine on Windows.

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 09:26:21 -04:00
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