GitHub Action that runs ESLint on files changed in a Pull Request.

.github/workflows/lint.yml:

name: Lint

on:
  pull_request:
  push:
    branches:
      - master

jobs:
  eslint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
          node-version: 16
      - run: npm ci # or yarn install
      - uses: sibiraj-s/action-eslint@v2
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }} # optional
          eslint-args: '--ignore-path=.gitignore --quiet'
          extensions: 'js,jsx,ts,tsx'
          annotations: true

Ignore files changed in a PR.

steps:
  - uses: sibiraj-s/action-eslint@v2
    with:
      ignore-file: .eslintignore
      ignore-pattern: |
        dist/
        lib/

The files that are being filtered based on these options are excluded from the set of changed files before being sent to eslint. This feature proves useful in situations where a pull request or commit contains files that should not be linted, thus avoiding the occurrence of ignored file warnings.

You can use this in addition to ignore-path/ignore-patterns in eslint-args.

steps:
  - uses: sibiraj-s/action-eslint@v2
    with:
      eslint-args: '--ignore-path=.gitignore --quiet'
      ignore-file: .eslintignore
      ignore-pattern: |
        dist/
        lib/

The root-dir option can be especially useful when the eslint installation is not located in the root directory.

steps:
  - uses: action@v2
    with:
      root-dir: apps/website

Note: When using this option, options such as ignore-file will be resolved based on the specified directory and files outside this folder will be skipped too.

For better security it is recommended to pin actions to a full length commit SHA.

Read more on using third-party actions

• Yarn 2+ is not supported

To enable debug logs, set secret ACTIONS_STEP_DEBUG to true. Refer docs more details https://docs.github.com/en/actions/managing-workflow-runs/enabling-debug-logging#enabling-step-debug-logging