publish-helm.yaml

name: Publish Helm Charts

on:
  release:
    types: [published]

jobs:
  release:

    permissions:
      contents: write
      pull-requests: 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"
          fi

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v7
        with:
          branch: feat/update-helm-repo-index-${{ github.sha }}
          base: gh-pages
          title: Update Helm Chart Repository Index
          body: |
            <!-- 
            Are you using Knative? If you do, we would love to know!
            https://github.com/knative/community/issues/new?template=ADOPTERS.yaml&title=%5BADOPTERS%5D%3A+%24%7BCOMPANY+NAME+HERE%7D
            -->

            <!--
            Request Prow to automatically lint any go code in this PR:

            /lint
            -->

            ## Proposed Changes

            * Update Helm Chart Repository Index - generated by the publish-helm.yaml workflow

            **Release Note**

            <!-- Enter your extended release note in the below block. If the PR requires
            additional action from users switching to the new release, include the string
            "action required". If no release note is required, write "NONE". -->

            ```release-note
            NONE
            ```