cron_watcher.yml

# A GitHub Action to verify that certain Open Library cron jobs have completed successfully.
# Data dumps happen on the 1st day of the month so check on them on the 2nd day of the month.
# Partner dumps happen on the 17th day of the month so check on them on the 18th day of the month.
# Always check again two days later in case they needed to be re-run.
# https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#schedule

name: cron_watcher
on:
  schedule:  # At 3:45am on the 2nd, 4th, 18th, and 20th day of the month.
    - cron: '45 3 2,4,18,20 * *'  # https://cron.help
  workflow_dispatch:  # This job can also be run on-demand.
permissions:
  contents: read

jobs:
  cron_watcher:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-python@v4
        with:
          python-version: 3.x
      - run: pip install internetarchive slack-sdk
      - run: scripts/cron_watcher.py
        continue-on-error: true
        id: cron_watcher_step
      - if: steps.cron_watcher_step.outcome != 'success'
        shell: python
        env:
          SLACK_TOKEN: ${{ secrets.SLACK_TOKEN }}
          SLACK_CHANNEL_ABC_TEAM: ${{ secrets.SLACK_CHANNEL_ABC_TEAM }}
        run: |
          import os, sys, slack_sdk
          token = os.getenv("SLACK_TOKEN")
          channel = os.getenv("SLACK_CHANNEL_ABC_TEAM")
          if token and channel:
            slack_sdk.WebClient(token=token).chat_postMessage(channel=channel,
              text="[cron_watcher](https://github.com/internetarchive/openlibrary/actions/workflows/cron_watcher.yml) has failed.",
            )
          sys.exit(1)