focus_mode_daemon.py has been 509 lines since 22e22c1, over the repo's
cap. It went unnoticed because the Python tests workflow only triggers on
python_pkg/** changes, so that commit never ran CI; the next commit to
touch python_pkg/ exposed it and turned main red.
Extract configuration, logging, notification, /proc process inspection and
the killers into _focus_mode_lib.py, leaving the daemon its policy: the
whitelist, the FocusMode state machine, and main(). log/notify move with
the process code that calls them, so the dependency runs one way and there
is no cycle. The helper is underscore-prefixed and registered in pylint's
init-hook path, mirroring the existing usage_report.py / _usage_report_*.py
sibling-import precedent.
The daemon runs from a symlink in /usr/local/bin, so a sibling import only
works if Python resolves that symlink before setting sys.path[0]; verified
that it does, and the installer symlinks rather than copies, so the sibling
travels with it. Confirmed against the running service: restarts clean and
resumes enforcing, process detection unchanged, status output matches the
pre-split version.
Structural only; no behaviour change.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RG3eEn8rwZbcXaJrKJxdv8
Krzysztof kuhy Rudnicki
e0f62d699a