Automatically re-enable GitHub Actions scheduled workflows

If you're maintaining multiple stable projects, you might have noticed that GitHub simply disables scheduled workflows after seeing no commits for some time. Well, this script won't let it do that if you run it on a schedule. It bumps the expiration date of all your workflows that mention a schedule.

Base instructions

• Create a token with repo, workflow at https://github.com/settings/tokens
  • Export it as the environment variable GITHUB_TOKEN
• Run python3 reenable.py.
  • Figure out how to schedule it monthly.

Meta automation

• Fork this repo!
• Create a personal token with repo, workflow at https://github.com/settings/tokens
  • Add it as a repository secret (name PERSONAL_TOKEN) at https://github.com/[username]/reenable-gha/settings/secrets/actions/new
• Make sure that Actions are enabled in the fork.

Self-hosted automation with systemd

• Create a token with repo, workflow at https://github.com/settings/tokens
  • Paste it into the file reenable-gha.service instead of the asterisks.
• Put the script reenable.py into a known absolute path
  • Change reenable-gha.service to refer to it instead of the placeholder.
• Put reenable-gha.service, reenable-gha.timer into /etc/systemd/system.
• Run sudo systemctl daemon-reload; sudo systemctl enable --now reenable-gha.timer.
  • Also run sudo systemctl start reenable-gha to activate it immediately.
  • Run journalctl -u reenable-gha to watch progress.