fastlane: Add lane for Android production deployments

Author: Jonas Greifenhain

open_wearable/android/fastlane/Fastfile

@@ -40,4 +40,29 @@ platform :android do
       )
     end
   end
+
+  lane :production_deploy do
+    begin
+      sh "./get-flutter-dependencies.sh"
+      sh "flutter build appbundle --release"
+
+      gradle(
+        task: 'bundle',
+        build_type: 'Release',
+        properties: {
+          # This injection seems not to be supported anymore and got replaced in build.gradle
+          # "android.injected.version.code" => version,
+          "android.injected.signing.store.file" => ENV["OPEN_WEARABLE_APP_ANDROID_KEYSTORE_PATH"],
+          "android.injected.signing.store.password" => ENV["OPEN_WEARABLE_APP_ANDROID_KEYSTORE_PASSWORD"],
+          "android.injected.signing.key.alias" => "upload",
+          "android.injected.signing.key.password" => ENV["OPEN_WEARABLE_APP_ANDROID_KEYSTORE_PASSWORD"],
+        }
+      )
+      upload_to_play_store(
+        track: 'production',
+        skip_upload_changelogs: false,
+        aab: "../build/app/outputs/bundle/release/app-release.aab"
+      )
+    end
+  end
 end