publish-helm.yaml

name: Publish Helm Charts

on:
  release:
    types: [published]

jobs:
  release:

    permissions:
      contents: write

    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Install Helm
        uses: azure/setup-helm@v4

      - name: Install Helm HTML Plugin
        run: helm plugin install https://github.com/halkeye/helm-repo-html

      - name: Build Helm Chart Repo index.yaml
        run: |
          # this script from main will be gone on gh-pages branch, 
          # so lets stash it away in a temp directory in the directory above this one
          mkdir ../.tmp
          mv hack/find_helm_chart_releases_and_create_helm_index.sh ../.tmp/
          mv hack/gh-pages.tmpl ../.tmp/

          PAGES_BRANCH="gh-pages"

          git fetch --all --tags

          if git show-ref --verify --quiet refs/heads/$PAGES_BRANCH || git ls-remote --exit-code --heads origin $PAGES_BRANCH; then
              # Branch exists
              git checkout $PAGES_BRANCH
              echo "Checked out existing branch '$PAGES_BRANCH'"
          else
              # Branch does not exist
              git symbolic-ref HEAD refs/heads/$PAGES_BRANCH
              rm .git/index
              git clean -fdx
              echo ".tmp/" > .gitignore
              echo "Created and checked out new branch '$PAGES_BRANCH'"
          fi

          mv ../.tmp ./
          .tmp/find_helm_chart_releases_and_create_helm_index.sh
          helm repo-html -t .tmp/gh-pages.tmpl

          if output=$(git status --porcelain) && [ -z "$output" ]; then
            # Working directory clean

            echo "No changes to commit"
          else 
            # Uncommitted changes
            echo "Changes detected"
            git status
            echo "Committing..."

            git config --local user.email "github-actions[bot]@users.noreply.github.com"
            git config --local user.name "github-actions[bot]"
            git add -A
            git commit -m "update helm chart repository index.yaml"

            git push origin gh-pages
          fi