lint.yml

name: Lint

on:  [pull_request]

env:
  PLUGIN_NAME: dashboards-observability
  OPENSEARCH_DASHBOARDS_VERSION: 'main'

jobs:
  build:
    name: Lint
    runs-on: ubuntu-latest

    steps:
      - name: Checkout OpenSearch Dashboards
        uses: actions/checkout@v2
        with:
          repository: opensearch-project/Opensearch-Dashboards
          ref: ${{ env.OPENSEARCH_DASHBOARDS_VERSION }}
          path: OpenSearch-Dashboards

      - name: Checkout dashboards observability
        uses: actions/checkout@v2
        with:
          path: OpenSearch-Dashboards/plugins/${{ env.PLUGIN_NAME }}         

      - name: Get node and yarn versions
        working-directory: ${{ env.WORKING_DIR }}
        id: versions_step
        run: |
          echo "::set-output name=node_version::$(cat ./OpenSearch-Dashboards/.nvmrc | cut -d"." -f1)"
          echo "::set-output name=yarn_version::$(node -p "(require('./OpenSearch-Dashboards/package.json').engines.yarn).match(/[.0-9]+/)[0]")"

      - name: Setup node
        uses: actions/setup-node@v1
        with:
          node-version: ${{ steps.versions_step.outputs.node_version }}
          registry-url: 'https://registry.npmjs.org'

      - name: Install correct yarn version for OpenSearch Dashboards
        run: |
          npm uninstall -g yarn
          echo "Installing yarn ${{ steps.versions_step.outputs.yarn_version }}"
          npm i -g yarn@${{ steps.versions_step.outputs.yarn_version }}

      - name: Bootstrap the plugin
        working-directory: OpenSearch-Dashboards/plugins/${{ env.PLUGIN_NAME }}  
        run:
          yarn osd bootstrap

      - name: Checkout the head of the pull request
        if: github.event_name == 'pull_request'
        uses: actions/checkout@v2
        with:
          ref: ${{ github.event.pull_request.head.sha }}
      
      - name: Get list of changed files
        id: files
        run: |
          BASE_SHA="${{ github.event.pull_request.base.sha }}"
          HEAD_SHA="${{ github.event.pull_request.head.sha }}"
          git fetch origin $BASE_SHA
          CHANGED_FILES=$(git diff --name-only $BASE_SHA...$HEAD_SHA | grep -E "\.(js|ts|tsx)$")
          echo "::set-output name=changed::${CHANGED_FILES}"

      - name: Lint Changed Files
        run: |
          CHANGED_FILES="${{ steps.files.outputs.changed }}"
          if [ -n "$CHANGED_FILES" ]; then
            echo "Linting changed files..."
            yarn lint $CHANGED_FILES
          else
            echo "No JavaScript/TypeScript files to lint."
          fi