release-please.yaml

name: release-please
on:
  push:
    branches:
      - main
    paths: 
      - "charts/**"

jobs:
  release-please:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    outputs:
      releases_created: ${{ steps.release.outputs.releases_created }}
    steps:
      # PR should not be triggered by repository's token to trigger GHA for auto approval
      # so, use github apps token instead of repository token
      # https://docs.github.com/en/actions/security-guides/automatic-token-authentication#using-the-github_token-in-a-workflow
#      - id: app-token
#        uses: actions/create-github-app-token@v1
#        with:
#          app-id: ${{ secrets.APP_ID }}
#          private-key: ${{ secrets.PRIVATE_KEY }}
      - id: release
        uses: google-github-actions/release-please-action@v4
        with:
          token: ${{ secrets.PAT_TOKEN }}

  get-bumped-charts:
    runs-on: ubuntu-latest
    needs: release-please
    if: ${{ needs.release-please.outputs.releases_created }}
    name: 'Get modified charts'
    permissions:
      contents: read
    outputs:
      charts: ${{ steps.get-bumped-charts.outputs.charts }}
      result: ${{ steps.get-bumped-charts.outputs.result }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2 # to be able to obtain files changed in the latest commit
      - id: get-bumped-charts
        name: 'Get modified charts'
        run: |

          # get the changed files
          files_changed="$(git show --pretty="" --name-only)"
          echo "files_changed=$files_changed"

          # get the directories that includes Chart.yaml file changes to get the charts that changed version
          chart_file_changed="$(echo $files_changed | grep -E 'Chart\.ya?ml' | xargs dirname | grep -o "charts/[^/]*" | sort | uniq || true)"

          # Initialize an empty array for version-changed charts
          version_changed_charts=()

          for chart in $chart_file_changed; do
            # Check if there's a version change in the Chart.yaml file
            if git show "$chart" | grep -q "+version"; then
              version_changed_charts+=("$chart")
            fi
          done
          
          # make the outputs
          if [ ${#version_changed_charts[@]} -gt 0 ]; then
            echo "charts=${version_changed_charts[@]}" >>$GITHUB_OUTPUT
            echo "result=ok" >>$GITHUB_OUTPUT
          else
            echo "error=No version changed charts found" >>$GITHUB_OUTPUT
            echo "result=fail" >>$GITHUB_OUTPUT
          fi

          # print the outputs
          cat $GITHUB_OUTPUT

      - id: show-warning
        name: 'Show Warning'
        if: ${{ steps.get-bumped-charts.outputs.result == 'fail' }}
        run: |
          echo "${{ steps.get-bumped-charts.outputs.error }}"
          echo "publish jobs/steps will be interrupted"
        # uses: actions/github-script@v6
        # with:
        #   script: |
        #       core.setFailed('${{ steps.get-bumped-charts.outputs.error }}')

  publish-charts:
    runs-on: self-hosted
    needs: get-bumped-charts
    if: ${{ needs.get-bumped-charts.outputs.result == 'ok' }}
    name: Publish Charts to registry
    permissions:
      contents: read
    env:
      PUBLISH_DIR: ".target"
    steps:
      - name: Install Helm
        uses: azure/setup-helm@v3
        with:
          version: v3.13.0

      - name: Checkout Repository
        uses: actions/checkout@v4

      - name: Build the package of updated Charts
        id: package-charts
        run: |
          rm -rf $PUBLISH_DIR && mkdir -p $PUBLISH_DIR
          version_changed_charts="${{needs.get-bumped-charts.outputs.charts}}"
          for dir in ${version_changed_charts}; do
            helm package $dir --dependency-update --destination $PUBLISH_DIR
          done

      - name: Publish Charts to repository
        id: push-charts-repository
        run: |
          # install helm plugin helm-push to publish chart to "repository"
          helm plugin install https://github.com/chartmuseum/helm-push
          
          # Use a for loop to packaged each .tgz file in the $PUBLISH_DIR directory
          for file in "$PUBLISH_DIR"/*.tgz; do
            if [ -f "$file" ]; then
              echo "Publishing $file to Helm Repository"
              helm cm-push \
                --username ${{ secrets.HELM_REPO_USERNAME }} \
                --password ${{ secrets.HELM_REPO_PASSWORD }} \
                $file \
                https://chartmuseum.lab.meowhq.dev
            fi
          done

      - name: Publish Charts to OCI Registry
        id: push-charts-oci
        run: |
          # login to oci registry
          echo '${{ secrets.HARBOR_CICD_PASSWORD }}' | \
          helm registry login --username '${{ secrets.HARBOR_CICD_USERNAME }}' \
            --password-stdin \
            harbor.lab.meowhq.dev
          
          # Use a for loop to packaged each .tgz file in the $PUBLISH_DIR directory
          for file in "$PUBLISH_DIR"/*.tgz; do
            if [ -f "$file" ]; then
              echo "Publishing $file to OCI Registry"
              helm push $file oci://harbor.lab.meowhq.dev/charts
            fi
          done

  # this is currently in test
  publish-charts-github-release:
    runs-on: ubuntu-latest
    needs: get-bumped-charts
    if: ${{ needs.get-bumped-charts.outputs.result == 'ok' }}
    name: Publish Charts to Github
    permissions:
      contents: write
      packages: write
      pages: write
    steps:
      - uses: actions/checkout@v4
        name: Checkout Repository
      - name: Run chart-releaser
        uses: helm/chart-releaser-action@v1.6.0
        with:
          charts_dir: charts
        env:
          CR_TOKEN: ${{ secrets.GITHUB_TOKEN }}