GitHub Action: Workflow Keepalive

GitHub Action to prevent GitHub from disabling scheduled workflows due to repository inactivity.

Compared to other similar GitHub Actions (https://github.com/marketplace/actions/keep-your-github-actions-alive-automatically, https://github.com/marketplace/actions/keepalive-workflow), this one will not create any dummy commits. Instead, it uses GitHub API to preemptively re-enable the workflow, thus preventing it from being automatically disabled.

Usage:

Invoke this action in all scheduled workflows that you need to continue running even if there's no activity in the repo:

name: Tests

on:
  schedule:
    - cron: "0 0 * * *"

jobs:
  tests:
    name: Run integration tests
    steps:
      - uses: actions/checkout@v3
      # … whatever other steps you need to run your tests

  workflow-keepalive:
    if: github.event_name == 'schedule'
    runs-on: ubuntu-latest
    permissions:
      actions: write
    steps:
      - uses: liskin/gh-workflow-keepalive@v1