main.yml

# This is a basic workflow to help you get started with Actions

name: Publish to Pub.dev

# Controls when the workflow will run
on:
  ## Triggers the workflow on push or pull request events but only for the main branch
  #push:
  #  branches: [ main ]
  #pull_request:
  #  branches: [ main ]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  publishing:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest

    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
      - name: 'Checkout'
        uses: actions/checkout@v2 # required!

      - name: 'Update version string'
        run: yq '.version' pubspec.yaml > lib/assets/version.txt

      - name: '>> Dart package <<'
        uses: k-paxian/dart-package-publisher@master
        with:
          accessToken: ${{ secrets.OAUTH_ACCESS_TOKEN }}
          refreshToken: ${{ secrets.OAUTH_REFRESH_TOKEN }}
          flutter: true