check-releases.yml

name: Check for New Releases

on:
  schedule:
    - cron: "0 0 * * *" # Runs every hour
  workflow_dispatch:

jobs:
  check_and_release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4

      - name: Check for new Photon release
        id: check_release
        run: |
          latest_release=$(curl -s https://github.com/komoot/photon/releases.atom | grep '<title>' | sed -n '2p' | sed -E 's/.*Release ([0-9]+\.[0-9]+\.[0-9]+).*/\1/')
          echo "latest_release=${latest_release}" >> "$GITHUB_ENV"

      - name: Get last processed release
        id: get_last_release
        run: |
          echo "last_release=$(cat .last_release)" >> "$GITHUB_ENV"
        continue-on-error: true

      - name: Create Release
        if: env.latest_release != env.last_release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ env.latest_release }}
          name: Release ${{ env.latest_release }}
          body: |
            New Photon release: ${{ env.latest_release }}

            This is an automated release created by the GitHub Actions workflow.
          draft: false
          prerelease: false
        env:
          GITHUB_TOKEN: ${{ secrets.MY_PAT_TOKEN }}

      - name: Update last release file
        if: env.latest_release != env.last_release
        run: |
          echo "${latest_release}" > .last_release
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add .last_release
          git commit -m "Update last processed release to ${latest_release}"
          git push --force

      - name: Trigger build workflow
        if: env.latest_release != env.last_release
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.MY_PAT_TOKEN }}
          script: |
            github.rest.actions.createWorkflowDispatch({
              owner: context.repo.owner,
              repo: context.repo.repo,
              workflow_id: 'build-and-push.yml',
              ref: 'main',
              inputs: {
                release_tag: '${{ env.latest_release }}'
              }
            })