use drone for all flavours

use only on master and PR push
use google stuff only on gplay, modified

.drone.yml

@@ -1,19 +1,24 @@
 pipeline:
   test:
-    image: nextcloudci/android:android-15
+    image: nextcloudci/android:android-17
     commands:
+      # uncomment gplay for Gplay, Modified only
+      - sh -c "if [ '$FLAVOUR' != 'Generic' ]; then sed -i '/com.google.*.gms/s/^.*\/\///g' build.gradle; fi"
+
       - echo no | android create avd --force -n test -t $ANDROID_TARGET --abi $ANDROID_ABI -c 20M
       - emulator -avd test -no-window &
       - ./wait_for_emulator.sh
+
       # build app and assemble APK, in debug mode
-      - ./gradlew assembleGeneric
+      - ./gradlew assemble${FLAVOUR}
+
       # run all the instrumented tests of app module - DISABLED until we get an stable setup for Espresso in Travis
       # - ./gradlew connectedDebugAndroidTest --info
+
       # install app, then assemble and install instrumented tests of app module
-      - ./gradlew :installGenericDebug
-      #- ./gradlew :installModifiedDebug
-      - ./gradlew :installGenericDebugAndroidTest
-      #- ./gradlew :installModifiedDebugAndroidTest
+      - ./gradlew :install${FLAVOUR}Debug
+      - ./gradlew :install${FLAVOUR}DebugAndroidTest
+
       # run sample instrumented unit test
       # TODO fails because test runner is not available
       #- adb shell am instrument -w -e debug false -e class com.owncloud.android.datamodel.OCFileUnitTest com.owncloud.android.test/android.support.test.runner.AndroidJUnitRunner
@@ -22,3 +27,11 @@ pipeline:
       - ANDROID_TARGET=android-24
       - ANDROID_ABI=armeabi-v7a
       - LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/:/opt/android-sdk-linux/tools/lib64/gles_mesa/
+
+matrix:
+  FLAVOUR:
+    - Generic
+    - Gplay
+    - Modified
+
+branches: master