android: added .apk sigining

Author: JaCzekanski

.appveyor.yml

@@ -6,20 +6,20 @@ environment:
   PREMAKE_VERSION: 5.0.0-alpha13
   SDL_VERSION: 2.0.9
   matrix:
-  - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-    SKIP_DEPLOY: skip
-    TOOLSET: vs2017
-    platform: Win32
-  - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-    SKIP_DEPLOY: skip
+  - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019 Preview
     TOOLSET: vs2017
     platform: x64
   - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019 Preview
     TOOLSET: vs2017
     platform: Win32
-  - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019 Preview
+  - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
     TOOLSET: vs2017
     platform: x64
+    SKIP_DEPLOY: skip
+  - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+    TOOLSET: vs2017
+    platform: Win32
+    SKIP_DEPLOY: skip
 
 # TODO: Move to PowerShell script
 before_build:

.gitignore

@@ -71,3 +71,5 @@ config.json
 src/version.h
 out.txt
 *.xcworkspace
+
+*.keystore

.travis.yml

@@ -15,6 +15,7 @@ matrix:
     sudo: required
     dist: trusty
     cache: ccache
+    before_install: openssl aes-256-cbc -K $encrypted_7333c7dd5b15_key -iv $encrypted_7333c7dd5b15_iv -in android/avocado.keystore.enc -out android/avocado.keystore -d
     install: "./.travis/android/pull-container.sh"
     script: "./.travis/android/run-container.sh"
     after_success: "./.travis/notify-discord.sh success $WEBHOOK_URL"

.travis/android/build.sh

@@ -8,7 +8,7 @@ export DATE=`date +%Y%m%d`
 export COMMIT=`git rev-parse --short=7 HEAD`
 export ARTIFACT=avocado-$OS-$DATE-$COMMIT.apk
 export ASSETS_DIR=android/app/src/main/assets
-export TARGET_DIR=android/app/build/outputs/apk/debug
+export TARGET_DIR=android/app/build/outputs/apk/release
 export NDK_CCACHE="$(which ccache)"
 
 # Configure cache
@@ -28,13 +28,13 @@ pushd android
 NDK_PROJECT_PATH=`pwd`/app ndk-build PM5_CONFIG=release_x64 -j4 avocado NDK_DEBUG=0
 ccache -s
 
-# Java code (debug for now)
-./gradlew assembleDebug
+# Java code
+./gradlew assembleRelease
 popd
 
 # Tests
 # No test suite for Android right now
 
 # Package and prepare upload artifact
 mkdir -p upload
-cp $TARGET_DIR/app-debug.apk upload/$ARTIFACT
+cp $TARGET_DIR/app-release.apk upload/$ARTIFACT

android/app/build.gradle

@@ -1,5 +1,8 @@
 apply plugin: 'com.android.application'
 
+def signingPassword = System.getenv("keystore_password")
+def signingEnabled = System.getenv("CI") == "true"
+
 android {
     compileSdkVersion 28
     defaultConfig {
@@ -18,12 +21,28 @@ android {
             abiFilters "x86_64", "arm64-v8a"
         }
     }
+    signingConfigs {
+        if (signingEnabled) {
+            release {
+                storeFile = file("../avocado.keystore")
+                keyAlias = "avocado"
+                storePassword = signingPassword
+                keyPassword = signingPassword
+            }
+        }
+    }
+
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            if (signingEnabled) {
+                signingConfig signingConfigs.release
+            }
         }
     }
+    
+
 //    externalNativeBuild {
 //        ndkBuild {
 //            path 'jni/Android.mk'