ci.yml

name: CI

on:
  pull_request:
    branches: [main]

jobs:
  helm-chart-validation:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Helm
        uses: azure/setup-helm@v4

      - name: Run helm lint
        run: helm lint ./charts/deepgram-self-hosted

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: 1.22

      - name: Install helm-docs
        run: |
          go install github.com/norwoodj/helm-docs/cmd/helm-docs@latest

      - name: Run helm-docs
        run: |
          helm-docs

      - name: Check if README.md is up to date
        run: |
          if ! git diff --quiet -- ./charts/deepgram-self-hosted/README.md; then
            echo "README.md is out of date. Please run helm-docs and commit the changes."
            exit 1
          fi

      - name: Check that chart version is bumped if chart appVersion is bumped
        run: |
          CHART_DIR="charts/deepgram-self-hosted"
          if [ ! -f "$CHART_DIR/Chart.yaml" ]; then
            echo "Error: Chart.yaml not found in $CHART_DIR"
            exit 1
          fi

          OLD_VERSION=$(git show origin/$GITHUB_BASE_REF:$CHART_DIR/Chart.yaml | grep '^version:' | awk '{print $2}')
          NEW_VERSION=$(grep '^version:' $CHART_DIR/Chart.yaml | awk '{print $2}')
          OLD_APP_VERSION=$(git show origin/$GITHUB_BASE_REF:$CHART_DIR/Chart.yaml | grep '^appVersion:' | awk '{print $2}')
          NEW_APP_VERSION=$(grep '^appVersion:' $CHART_DIR/Chart.yaml | awk '{print $2}')

          if [[ "$OLD_VERSION" = "$NEW_VERSION" ]] && [[ "$OLD_APP_VERSION" != "$NEW_APP_VERSION" ]]; then
            echo "Error: In $CHART_DIR/Chart.yaml, appVersion has been changed but version has not been bumped"
            echo "Old appVersion: $OLD_APP_VERSION"
            echo "New appVersion: $NEW_APP_VERSION"
            echo "Chart version: $NEW_VERSION"
            echo "Chart version should be bumped anytime the application version is bumped."
            exit 1
          fi

      - name: Check that the chart changelog has been updated if the chart has changes
        run: |
          CHART_DIR="charts/deepgram-self-hosted"

          echo "Non-documentation files changed in chart directory:"
          # If there are changes to the chart directory besides the changelog file or documentation...
          if git diff --name-only origin/"$GITHUB_BASE_REF"... $CHART_DIR | grep -vE "^$CHART_DIR/(CHANGELOG\.md|README\.md(\..*)?)"; then
          # ...make sure the changelog file is updated as well
            if ! git diff --name-only origin/"$GITHUB_BASE_REF"... "$CHART_DIR/CHANGELOG.md" | grep -q "$CHART_DIR/CHANGELOG.md"; then
              echo "Detected changes to non-documentation files the helm chart directory, but the chart CHANGELOG.md was not updated."
              echo "Please add a short desription of changes to the changelog under the \"Unreleased\" header."
              exit 1
            fi
          fi