update-helm-repo.yaml

name: Update Helm Repository

on:
  workflow_dispatch:
    inputs:
      repo:
        type: choice
        required: true
        description: "Which repo to build?"
        default: "stable"
        options:
          - "stable"
          - "canary"

  workflow_call:
    inputs:
      repo:
        type: string
        required: true
        description: "Build stable or canary repo?"
        default: "stable"

jobs:
  call-make-index:
    uses: ./.github/workflows/make-charts-index.yaml
    with:
      repoName: ${{ inputs.repo }}

  update-page:
    runs-on: ubuntu-latest
    needs: call-make-index
    permissions:
      contents: write # for updating index.yaml
    steps:
      - uses: actions/checkout@v3
        with:
          ref: "gh-pages"

      - name: Configure Git
        run: |
          git config user.name "${{ github.actor }}"
          git config user.email "${{ github.actor}}@users.noreply.github.com"

      - uses: actions/download-artifact@v3
        with:
          name: "chart-index.${{ inputs.repo }}"
          path: ".nindex"

      - name: Update index when there's changes
        shell: bash
        run: |
          if [[ "${{ inputs.repo }}" == "stable" ]]; then
            path="."
          else
            path="${{ inputs.repo }}"
            # create dir if it doesn't exist yet
            [ ! -d "$path" ] && mkdir "$path"
          fi

          if ! diff -q .nindex/index.yaml "$path/index.yaml"; then
            cp .nindex/index.yaml "$path/index.yaml"
            git add "$path/index.yaml"
            git commit -m "chore(helm-repo): update index.yaml"
            git push
          fi