lint-yaml.yaml

name: Auto Yaml Lint

on:
  pull_request:
    branches:
      - main
    paths:
      - '**.yml'
      - '**.yaml'

jobs:
  linkyaml:
    runs-on: ubuntu-latest
    name: Yaml Lint
    steps:
      - name: Checkout
        if: ${{ github.event_name == 'workflow_dispatch' }}
        uses: actions/checkout@v3
        with:
          ref: ${{ github.event.inputs.tag }}

      - name: Checkout
        if: ${{ github.event_name != 'workflow_dispatch' }}
        uses: actions/checkout@v3

      - name: github yaml format yq
        run: |
          echo "=================== install yq"
          wget https://github.com/mikefarah/yq/releases/download/v4.30.7/yq_linux_amd64
          chmod +x yq_linux_amd64
          echo "=================== get pr number"
          PR_NUMBER=""
          if ${{ github.event_name == 'pull_request' }}; then
              echo "trigger by pull_request"
              PR_NUMBER=${{ github.event.number }}
              [ -n "${PR_NUMBER}" ] || { echo "no PR number, ignore" ; exit 0 ; }     
          fi
          echo "============= get changed chart========"
          URL="https://api.github.com/repos/${{ github.repository }}/pulls/${PR_NUMBER}/files"
          files_changed_data=$(curl -s --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' -X GET -G "$URL")
          echo "files_changed_data: $files_changed_data"
          files_changed="$(echo $files_changed_data | jq -r '.[] | .filename')"
          echo "files_changed: $files_changed"
          echo "============= checking yaml file========"
          for FILEPATH in $files_changed ; do
              if grep -E "\.github/.*\.yaml" <<< "$FILEPATH" &>/dev/null || grep -E "\.github/.*\.yaml" <<< "$FILEPATH" &>/dev/null ; then
                  echo "------------ checking ${FILEPATH} "
                  if ! ./yq_linux_amd64 ${FILEPATH} &>/dev/null ; then
                    ./yq_linux_amd64 ${FILEPATH} || true
                    echo "!!! error, $FILEPATH is not yaml format"
                    exit 1
                  fi
              fi
          done
          echo "--- all done"