eslint-source.yml

name: Lint

on:
  pull_request:
    paths:
      - 'src/**/*.ts'
      - '**eslint**'
      - 'yarn.lock'
      - '.github/workflows/eslint-source.yml'
jobs:
  eslint:
    name: ESLint
    runs-on: ubuntu-latest
    env:
      HUSKY_SKIP_INSTALL: true
      TERM: xterm-256color

    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v2-beta

      - name: Get yarn cache directory path
        id: yarn-cache-dir-path
        run: echo "::set-output name=dir::$(yarn cache dir)"

      - uses: actions/cache@v2
        id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
        with:
          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-

      - run: |
          yarn install --frozen-lockfile --ignore-scripts --ignore-optional --non-interactive --silent --production=false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Run ESLint
        run: |
          CHANGED_JS=$(git --no-pager diff --name-only ..origin/master | grep '^src\/.*\.ts$' | xargs ls -d 2>/dev/null | paste -sd " " -)
          if [[ -z $(sed -e 's/[[:space:]]*$//' <<<${CHANGED_JS}) ]] || [[ "$CHANGED_JS" == "." ]];
            then
              yarn lint
            else
              node node_modules/eslint/bin/eslint $CHANGED_JS
          fi