Added signing.properties according to https://gist.github.com/gabriel…

…emariotti/6856974

.gitignore

@@ -22,3 +22,5 @@
 *.iws
 *.jar
 *.war
+
+signing.properties

app/build.gradle

@@ -2,7 +2,9 @@ apply plugin: 'com.android.application'
 
 android {
     signingConfigs {
-    }
+        release
+
+}
     compileSdkVersion 26
     defaultConfig {
         applicationId "oddb.org.generika"
@@ -16,10 +18,10 @@ android {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-            signingConfig signingConfigs.config
+            signingConfig signingConfigs.release
         }
         debug {
-            signingConfig signingConfigs.config
+            signingConfig signingConfigs.release
         }
     }
 
@@ -38,3 +40,23 @@ dependencies {
     androidTestImplementation 'com.android.support.test:runner:1.0.1'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
+
+def Properties props = new Properties()
+def propFile = new File('signing.properties')
+if (propFile.canRead()){
+    props.load(new FileInputStream(propFile))
+
+    if (props!=null && props.containsKey('STORE_FILE') && props.containsKey('STORE_PASSWORD') &&
+            props.containsKey('KEY_ALIAS') && props.containsKey('KEY_PASSWORD')) {
+        android.signingConfigs.release.storeFile = file(props['STORE_FILE'])
+        android.signingConfigs.release.storePassword = props['STORE_PASSWORD']
+        android.signingConfigs.release.keyAlias = props['KEY_ALIAS']
+        android.signingConfigs.release.keyPassword = props['KEY_PASSWORD']
+    } else {
+        println 'signing.properties found but some entries are missing'
+        android.buildTypes.release.signingConfig = null
+    }
+}else {
+    println 'signing.properties not found'
+    android.buildTypes.release.signingConfig = null
+}