WIP Configure flutter Android releases on the CI

Author: ashtanko

.github/workflows/release.yml

@@ -0,0 +1,99 @@
+name: "Build"
+
+on:
+  pull_request:
+    branches:
+      - main
+
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: Build & Release
+    runs-on: macos-latest
+
+    steps:
+      #1 Checkout Repository
+      - name: Checkout Repository
+        uses: actions/checkout@v3
+
+        #2 Setup Java
+      - name: Set Up Java
+        uses: actions/[email protected]
+        with:
+          distribution: 'oracle'
+          java-version: '17'
+
+        #3 Setup Flutter
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+
+        #4 Install Dependencies
+      - name: Install Dependencies
+        run: flutter pub get
+
+        #5 Setup Keystore
+      - name: Decode Keystore
+        run: |
+          echo "${{ secrets.KEYSTORE_BASE64 }}" | base64 --decode > android/app/keystore.jks
+
+      - name: Create key.properties
+        run: |
+          echo "storePassword=${{ secrets.KEYSTORE_PASSWORD }}" > android/key.properties
+          echo "keyPassword=${{ secrets.KEY_PASSWORD }}" >> android/key.properties
+          echo "keyAlias=${{ secrets.KEY_ALIAS }}" >> android/key.properties
+          echo "storeFile=keystore.jks" >> android/key.properties
+
+      #6 Building APK
+      - name: Build APK
+        run: flutter build apk --flavor dev --release -t lib/main_prod.dart
+
+        #7 Building App Bundle (aab)
+      - name: Build appBundle
+        run: flutter build appbundle --flavor dev --release -t lib/main_prod.dart
+
+        #9 Upload Artifacts
+      - name: Upload Artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: Releases
+          path: |
+            build/app/outputs/flutter-apk/app-dev-release.apk
+            build/app/outputs/bundle/devRelease/app-dev-release.aab
+
+        #10 Extract Version
+      - name: Extract version from pubspec.yaml
+        id: extract_version
+        run: |
+          version=$(grep '^version: ' pubspec.yaml | cut -d ' ' -f 2 | tr -d '\r')
+          echo "VERSION=$version" >> $GITHUB_ENV
+
+        #11 Check if Tag Exists
+      - name: Check if Tag Exists
+        id: check_tag
+        run: |
+          if git rev-parse "v${{ env.VERSION }}" >/dev/null 2>&1; then
+            echo "TAG_EXISTS=true" >> $GITHUB_ENV
+          else
+            echo "TAG_EXISTS=false" >> $GITHUB_ENV
+          fi
+
+        #12 Modify Tag if it Exists
+      - name: Modify Tag
+        if: env.TAG_EXISTS == 'true'
+        id: modify_tag
+        run: |
+          new_version="${{ env.VERSION }}-build-${{ github.run_number }}"
+          echo "VERSION=$new_version" >> $GITHUB_ENV
+
+        #13 Create Release
+      - name: Create Release
+        uses: ncipollo/release-action@v1
+        with:
+          artifacts: "build/app/outputs/flutter-apk/app-dev-release.apk,build/app/outputs/bundle/devRelease/app-dev-release.aab"
+          tag: v${{ env.VERSION }}
+          token: ${{ secrets.TOKEN }}