CI: Add main and pullrequest workflows

.github/workflows/pull_request.yaml

@@ -0,0 +1,73 @@
+name: Pull Request Workflow
+
+on: [pull_request]
+
+env:
+  FLUTTER_VERSION: '3.10.6'
+  JAVA_VERSION: '11.0'
+
+jobs:
+  analyze:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+      - uses: subosito/flutter-action@v2
+        with:
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+      - run: flutter pub get
+      - name: Check formatting
+        run: dart format lib/ test/ --set-exit-if-changed
+      - name: Check import formatting
+        run: dart run import_sorter:main --no-comments --exit-if-changed
+      - run: flutter analyze
+      - name: Apply google services patch
+        run: git apply ./scripts/enable-android-google-services.patch
+      - run: flutter analyze
+      - run: flutter test
+
+  build_debug_apk:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+      - uses: subosito/flutter-action@v2
+        with:
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+      - run: flutter pub get
+      - run: flutter build apk --debug
+
+  build_debug_web:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+      - uses: subosito/flutter-action@v2
+        with:
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+      - run: flutter pub get
+      - name: Prepare web
+        run: ./scripts/prepare-web.sh
+      - run: flutter build web
+
+  build_debug_linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+      - uses: subosito/flutter-action@v2
+        with:
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+      - name: Install dependencies
+        run: sudo apt-get update && sudo apt-get install curl clang cmake ninja-build pkg-config libgtk-3-dev libblkid-dev liblzma-dev libjsoncpp-dev cmake-data libsecret-1-dev libsecret-1-0 librhash0 -y
+      - run: flutter pub get
+      - run: flutter build linux
+