bump-fedora-bootc.yaml

name: Bump fedora-bootc submodule

on:
  schedule:
    - cron: '0 */6 * * *'
  workflow_dispatch:

permissions:
  contents: read

jobs:
  bump-fedora-bootc-submodule:
    name: Bump fedora-bootc submodule
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          submodules: true
          fetch-depth: 0
      # https://github.com/actions/checkout/issues/766
      - name: Mark git checkout as safe
        run: git config --global --add safe.directory "$GITHUB_WORKSPACE"
      - name: Check if there are new commits
        run: |
          previous_rev=$(git -C fedora-bootc rev-parse HEAD)
          git submodule update --remote fedora-bootc
          new_rev=$(git -C fedora-bootc rev-parse HEAD)
          if [ "${previous_rev}" != "${new_rev}" ]; then
              if git -C fedora-bootc diff --quiet "${previous_rev}" "${new_rev}" tier-0 tier-x; then
                  # reset back any changes to avoid a PR bump
                  git submodule update
              fi
          fi
          if git diff --quiet --exit-code; then
              echo "No tier-0 or tier-x changes; exiting"
              exit 0
          fi

          git -C fedora-bootc shortlog --no-merges "${previous_rev}..${new_rev}" -- tier-0 tier-x > $RUNNER_TEMP/shortlog

          marker=END-OF-LOG-MARKER-$RANDOM$RANDOM$RANDOM
          cat >> $GITHUB_ENV <<EOF
          SHORTLOG<<$marker
          $(cat $RUNNER_TEMP/shortlog)
          $marker
          EOF
      - name: Open pull request
        uses: peter-evans/create-pull-request@v6
        with:
          token: ${{ secrets.COREOSBOT_RELENG_TOKEN }}
          push-to-fork: coreosbot-releng/fedora-coreos-config
          branch: bump-fedora-bootc
          commit-message: |
            Bump fedora-bootc submodule

            ${{ env.SHORTLOG }}
          title: "Bump fedora-bootc submodule"
          body: |
            Created by [GitHub workflow](${{ github.server_url }}/${{ github.repository }}/actions/workflows/bump-fedora-bootc.yml) ([source](${{ github.server_url }}/${{ github.repository }}/blob/testing-devel/.github/workflows/bump-fedora-bootc.yml)).

            ```
            ${{ env.SHORTLOG }}
            ```
          committer: "CoreOS Bot <coreosbot@fedoraproject.org>"
          author: "CoreOS Bot <coreosbot@fedoraproject.org>"