Github workflow to build flutter web and deploy to github pages.

name: Flutter web github pages deploy

on: [pull_request, push]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: subosito/flutter-action@v2

      - name: Install dependencies
        run: |
          flutter pub get
      - name: Build web application [development]
        run: |
          flutter build web --target lib/main_development.dart
      # Deploy web in web branch for gh pages
      - run: git config user.name github-actions
        shell: bash

      - run: git config user.email github-actions@github.com
        shell: bash

      - run: git --work-tree build/web add --all
        shell: bash

      - run: git commit -m "Automatic deployment by github-actions"
        shell: bash

      - run: git push origin HEAD:web --force
        shell: bash