lint.yml

name: Lint

on: [push, pull_request]

jobs:
  lint:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Cache node modules
        uses: actions/cache@v2
        env:
          # added -vX just to reset the cache, feel free to up it if you need
          # to reset the cache again
          cache-name: cache-node-modules-v4
        with:
          path: ~/.npm
          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-build-${{ env.cache-name }}-

      - name: Install npm dependencies
        run: npm install

      # Required for import lint rules to work - packages pointing to ex
      # `lib/index.js`, where `src/index.ts` gets compiled to `lib/index.js`
      - name: Build modules
        id: buildModules
        run: npm run build

      - name: Lint changed files
        id: listChangedFiles
        run: |
          # Is this a pull request?
          if [ $GITHUB_BASE_REF ]; then
            # If it is - compare against the base branch
            # $GITHUB_BASE_REF is the branch you're merging *to*
            git fetch origin $GITHUB_BASE_REF --depth=1
            COMPARE_WITH=origin/$GITHUB_BASE_REF
            CHANGED_FILES=$( git diff --name-only $COMPARE_WITH $GITHUB_SHA --diff-filter ACMRTUXB )
            printf "\nThese files have changed between $COMPARE_WITH and $GITHUB_SHA:\n$CHANGED_FILES\n"
          else
            # If not it's a commit, check the files changed in this commit
            git fetch origin $GITHUB_SHA --depth=2
            CHANGED_FILES=$( git diff-tree --no-commit-id --name-only --diff-filter ACMRTUXB -r $GITHUB_SHA )
            printf "\nThese files have changed in $GITHUB_SHA:\n$CHANGED_FILES\n"
          fi

          # Don't include files like LICENSE and css files
          CHANGED_JS_FILES=$(echo "$CHANGED_FILES" | sed -e '/^.\+\(mjs\|tsx\|jsx\|js\|ts\)$/!d')

          for FILE_NAME in $CHANGED_JS_FILES
          do
            npm run eslint -- $FILE_NAME
          done

      - name: Notify Slack about build failure
        if: failure() && github.ref == 'refs/heads/ui/main'
        env:
          SLACK_BOT_TOKEN: ${{ secrets.ACTIONS_SLACK_BOT_TOKEN }}
        uses: voxmedia/github-action-slack-notify-build@v1
        with:
          channel: prj-components
          status: FAILED
          color: danger