chart-testing.yaml

name: Lint and Test Charts

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

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

      - name: Get base_sha
        run: |
          set -x
          # "Set base sha..."
          if [[ -n "${{ inputs.base_sha }}" ]]; then
            echo "base_sha=${{ inputs.base_sha }}" >> $GITHUB_OUTPUT
          elif [[ -n "${{ github.event.pull_request.base.sha }}" ]] && [[ "${{ github.event.pull_request.base.sha }}" != "0000000000000000000000000000000000000000" ]]; then
            echo "base_sha=${{ github.event.pull_request.base.sha }}" >> $GITHUB_OUTPUT
          elif [[ -n "${{ github.event.before }}" ]] && [[ "${{ github.event.before }}" != "0000000000000000000000000000000000000000" ]]; then
            echo "base_sha=${{ github.event.before }}" >> $GITHUB_OUTPUT
          fi
        id: base-sha

      - name: 'asdf:install'
        uses: asdf-vm/actions/install@v3.0.2

      - uses: actions/setup-python@v4
        with:
          python-version: 3.7

      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.4.0

      - name: Run chart-testing (list-changed)
        id: list-changed
        run: |
          set -euo pipefail
          set -x
          echo "changed=$(
            ct list-changed --since "${BASE_SHA}" --target-branch main --chart-dirs charts \
            | awk -v d="," '{gsub(/charts\//, ""); s=(NR==1?s:s d) "\"" $0 "\""}END{print "["s"]"}'
          )" >> $GITHUB_OUTPUT
        env:
          BASE_SHA: ${{ steps.base-sha.outputs.base_sha }}

      - name: Run chart-testing (lint)
        if: github.ref != 'refs/heads/main'
        run: ct lint --since "${BASE_SHA}" --target-branch main --chart-dirs charts
        env:
          BASE_SHA: ${{ steps.base-sha.outputs.base_sha }}

      - name: Check charts documentation
        uses: pre-commit/action@v3.0.0
        with:
          extra_args: --show-diff-on-failure --all-files
    outputs:
      changed: ${{ steps.list-changed.outputs.changed }}