Fix crash on first build when gradle.properties is empty

Author: x7c1

build.gradle

@@ -13,12 +13,3 @@ allprojects {
         mavenCentral()
     }
 }
-
-def generateIfEmpty = { projectPath ->
-    def properties = new File(projectPath, "gradle.properties")
-    if(!properties.exists()) {
-        properties << new File(properties.getAbsolutePath() + ".example").readBytes()
-    }
-}
-generateIfEmpty('./StudyplusAndroidSDK')
-generateIfEmpty('./SDKExample')

settings.gradle

@@ -1 +1,14 @@
 include ':StudyplusAndroidSDK', ':SDKExample'
+
+def setupDefaultProperties = { project ->
+    String dir = project.projectDir.absolutePath
+    def properties = new File(dir, "gradle.properties")
+    def example = new File(properties.getAbsolutePath() + ".example")
+    def notFound = !properties.exists() && example.exists()
+    if (notFound){
+        properties << example.readBytes()
+    }
+}
+[':StudyplusAndroidSDK', ':SDKExample'].each{
+    setupDefaultProperties project(it)
+}