build-and-publish-web.yml

name: Build and publish web

on:
  # Enable manual run
  workflow_dispatch:
  # Verify build succeeds on pull requests
  pull_request:
  # Verify build succeeds for tag events matching v*, i.e. v1.0.0, v20.15.10
  push:
    tags:
      - "v*"
  # Build & deploy for published releases
  release:
    types:
      - published

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Setup Flutter
        uses: subosito/flutter-action@v1
        # with:
        #   channel: beta

      - name: Get packages
        run: flutter pub get

      - name: Run build_runner
        run: flutter pub run build_runner build --delete-conflicting-outputs

      - name: Test build succeeds
        if: github.event.action != 'published'
        run: flutter build -v web --release

      - name: Build and publish web version to GitHub Pages
        if: github.event_name == 'release' && github.event.action == 'published'
        uses: bluefireteam/flutter-gh-pages@v7
        # baseHref must be included if the site is not going to be running
        # at a subdomain, for example: myapp.example.com
        #
        # For example if the url was example.com/myapp then the
        # baseHref should be: /myapp/
        # with:
        #   baseHref: /myapp/