charts-lint.yaml

name: "Charts: Lint"

on:
  workflow_call:
    inputs:
      checkoutCommit:
        required: true
        type: string
      chartChangesDetected:
        required: true
        type: string
      modifiedFiles:
        required: true
        type: string
      modifiedCharts:
        required: true
        type: string

jobs:
  lint-and-verify:
    name: Lint Charts and Verify Dependencies
    runs-on: ubuntu-latest
    steps:
      - name: Checkout [master]
        if: inputs.chartChangesDetected == 'true'
        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
        with:
          fetch-depth: 1
          ref: master

      - name: Checkout [commit]
        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
        with:
          fetch-depth: 1
          ref: ${{ inputs.checkoutCommit }}

      - name: Setting repo parent dir as safe safe.directory
        if: inputs.chartChangesDetected == 'true'
        run: git config --global --add safe.directory "$GITHUB_WORKSPACE"

      - name: Install go-yq
        if: inputs.chartChangesDetected == 'true'
        run: |
          mkdir -p $HOME/.local/bin
          wget https://github.com/mikefarah/yq/releases/download/v4.26.1/yq_linux_amd64 -O $HOME/.local/bin/go-yq && \
          chmod +x $HOME/.local/bin/go-yq
          echo "$HOME/.local/bin" >> $GITHUB_PATH

      - name: Install pre-commit, yamale and yamllint
        if: inputs.chartChangesDetected == 'true'
        run: |
          pip3 install --no-cache-dir pre-commit yamale yamllint

      - name: Install Helm
        if: inputs.chartChangesDetected == 'true'
        uses: azure/setup-helm@fe7b79cd5ee1e45176fcad797de68ecaf3ca4814 # v4
        with:
          version: v3.14.2

      - name: Prep Helm
        if: inputs.chartChangesDetected == 'true'
        run: |
          helm repo add jetstack https://charts.jetstack.io
          helm repo add vmwaretanzu https://vmware-tanzu.github.io/helm-charts
          helm repo add cnpg https://cloudnative-pg.github.io/charts
          helm repo add metallb https://metallb.github.io/metallb
          helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
          helm repo add  openebs https://openebs.github.io/charts
          helm repo add  csi-driver-smb https://raw.githubusercontent.com/kubernetes-csi/csi-driver-smb/master/charts
          helm repo add  csi-driver-nfs https://raw.githubusercontent.com/kubernetes-csi/csi-driver-nfs/master/charts
          helm repo update

      - name: Collect changes (branch-based)
        id: list-changed
        if: inputs.chartChangesDetected == 'true'
        shell: bash
        run: |
          CHARTS="${{ inputs.modifiedCharts }}"
          echo "Modified Charts: ${CHARTS}"

          EXCLUDED_JSON=$(go-yq eval -o=json '.excluded-charts // []' .github/ct-lint.yaml)
          CHARTS_JSON=$(echo "${CHARTS}" | jq --raw-input '.' | jq --compact-output --slurp '.')
          OUTPUT_JSON=$(echo "{\"excluded\": ${EXCLUDED_JSON}, \"all\": ${CHARTS_JSON}}" | jq --compact-output '.all-.excluded')

          echo CHANGED_CHARTS=${OUTPUT_JSON} >> "$GITHUB_OUTPUT"
          if [[ $(echo ${OUTPUT_JSON} | jq --compact-output '. | length') -gt 0 ]]; then
            echo "detected=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Test and Fix Pre-Commit Issues
        shell: bash
        # TODO: Only run pre-commit on changed files
        # TODO: Commit fixes
        if: inputs.chartChangesDetected == 'true'
        run: |
          echo "Running pre-commit test-and-cleanup..."
          # Fix sh files to always be executable
          find . -name '*.sh' | xargs chmod +x
          pre-commit run --all || pre-commit run --all

      - name: Fetch and Verify dependencies
        shell: bash
        if: steps.list-changed.outputs.detected == 'true'
        env:
          charts_path: "./"
        run: |
          CHANGED=$(echo '${{ steps.list-changed.outputs.CHANGED_CHARTS }}' | jq --raw-output '.[]')
          ./charttool deps ${CHANGED}

      - name: Run Chart Linting
        continue-on-error: true
        id: lint
        if: steps.list-changed.outputs.detected == 'true'
        env:
          result_file: /tmp/lint_result.txt
        run: |
          CHANGED=$(echo '${{ steps.list-changed.outputs.CHANGED_CHARTS }}' | jq --raw-output '.[]')
          # If the github.base_ref is empty (eg it runs outside of a PR) it fails back to origin/master
          .github/scripts/tc-lint.sh '${{ steps.list-changed.outputs.CHANGED_CHARTS }}' "origin/${{ github.base_ref }}"

      - name: Create/Update comment
        if: steps.list-changed.outputs.detected == 'true'
        continue-on-error: true
        uses: thollander/actions-comment-pull-request@24bffb9b452ba05a4f3f77933840a6a841d1b32b # v3
        with:
          filePath: /tmp/lint_result.txt
          comment_tag: lint_results
          mode: recreate
          GITHUB_TOKEN: ${{ github.token }}

      - name: Lint Result
        if: steps.list-changed.outputs.detected == 'true'
        shell: bash
        run: |
          if [ "${{ steps.lint.outcome }}" != "success" ]; then
            echo "❌ Linting failed ❌"
            echo '###############################################################'
            echo '## 👀 Expand [Run Chart Linting] step to view the results 👀 ##'
            echo '###############################################################'
            exit 1
          fi