This action uses the pana (Package ANAlysis) package to compute the score that your Dart or Flutter package will have on the Pub site, and post it as a commit comment, with suggestions for improvements.

This package, amongst other things:

• checks code formatting with dartfmt or flutter format (detected automatically),
• validates the code by performing static analysis with dartanalyzer,
• checks for outdated dependencies,
• validates the pubscpec.yaml file (dependencies, description's length...),
• checks for required files (CHANGELOG, README, example folder...)
• ...

You must include the actions/checkout step in your workflow. Here's an example:

name: Workflow example
on: [push, pull_request]

jobs:
  package-analysis:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v1 # required
      - uses: axel-op/dart_package_analyzer@stable
        with:
          githubToken: ${{ secrets.GITHUB_TOKEN }} # required
          eventPayload: ${{ toJson(github.event) }} # required
          commitSha: ${{ github.sha }} # required
          maxScoreToComment: 99.99 # not required

• githubToken, eventPayload, and commitSha inputs are required to post a comment on GitHub.
• Use maxScoreToComment if you only want to have a comment if your score is lower than this. If you don't specify it, a comment will be posted for every commit that triggers the workflow. In this example, a comment won't be posted if the score is above 99.99, that is, if it equals 100.