Get signing properties file from command line

Author: gscdev

app/build.gradle

@@ -12,6 +12,27 @@ android {
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
 
+    signingConfigs {
+        release {
+            //get signing properties file from command line
+            if (project.hasProperty('signPropsFile')) {
+                def propsFilePath = project.getProperty('signPropsFile')
+
+                def propsFile = new File(propsFilePath)
+
+                if (propsFile.canRead()) {
+                    def props = new Properties()
+                    props.load(new FileInputStream(propsFile))
+
+                    storeFile = file(props['storeFile'])
+                    storePassword = props['storePassword']
+                    keyAlias = props['keyAlias']
+                    keyPassword = props['keyPassword']
+                }
+            }
+        }
+    }
+
     buildTypes {
         release {
             minifyEnabled false