This action analyzes the modified lines dart code of the PR by running dart analyze and dart format.

Create a .yml file in ./github/workflows/ in your project.

• fail-on: Specifies when the action should fail.
  • Options:
    • 'error': Fails only on analyze error.
    • 'warning': Fails on warnings and errors.
    • 'info': Fails on info, warnings and errors from dart analyze.
    • 'format': Fails on everything, including bad formatting.
    • 'nothing': Fails on nothing.
  • Optional.
  • Default: 'error'.
• working-directory: The working directory.
  • Optional.
  • Default: './'.
• token: Github token
  • Optional.
  • Default: Secret token provided by Github
• check-renamed-files: If set to 'true', it will checks an entire renamed file even if there is no change in it.
  • Options: 'false', 'true'.
  • Optional.
  • Default: 'false'.
• emojis: 'false' will remove the emojis from the comment.
  • Options: 'true', 'false'.
  • Optional.
  • Default: 'true'.
• format: 'false' will remove the check on the format.
  • Options: 'true', 'false'.
  • Optional.
  • Default: 'true'.
• line-length: The line length for dart format command.
  • Optional.
  • Default: The default value used in dart format

No output.

It will fail the checks on your Pull Requests if any issue is found:

It will leave a comment explaining why it failed and what issues it found:

In the code change, it will display errors and warnings where the issues are found:

on: [pull_request]

jobs:
  linter:
    runs-on: ubuntu-latest
    name: Lint flutter code
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
      - name: Set up Flutter
        uses: subosito/flutter-action@v2
      - run: flutter pub get
      - name: Analyze Flutter
        uses: ValentinVignal/[email protected]
        with:
          fail-on: "warning"

In order to write comments, your GITHUB_TOKEN might need the pull_request: write permission.

Alternatively, you can download and run the script scripts/run.sh. In order to run it, you will need to set-up node first

Options:
-t, --token <token>              Required authentication token.

    --fail-on <value>            Set failure level (nothing, format, info, warning, error). Default: error.
    --working-directory <path>   Set the working directory. Default: ./
    --[no-]check-renamed-files   Enable or disable checking renamed files. Default: false.
    --[no-]emojis                Enable or disable emojis. Default: true.
    --[no-]format                Enable or disable formatting. Default: true.
    --line-length <number>       Set max line length. Default: null.
-h, --help                       Show this help message.

on: [pull_request]

jobs:
  linter:
    runs-on: ubuntu-latest
    name: Lint flutter code
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
      - name: Set up Flutter
        uses: subosito/flutter-action@v2
      - run: flutter pub get
      - uses: actions/setup-node@v4 # You need to install node before running the script.
      - run: |
          curl https://raw.githubusercontent.com/ValentinVignal/action-dart-analyze/refs/heads/main/scripts/run.sh -o script.sh
          bash script.sh -t ${{ github.token }} --fail-on warning