move secret strings to gradle config file

.gitignore

@@ -52,4 +52,5 @@ fabric.properties
 .DS_Store
 *.iml
 Habitica/res/values/secret_strings.xml
-habitica.properties
+habitica.properties
+habitica.resources

.travis.yml

@@ -40,5 +40,6 @@ android:
     #- sys-img-x86-android-17
 script:
     - cp habitica.properties.travis habitica.properties
+    - cp habitica.resources.example habitica.resources
     - ./gradlew assembleDebug
     - ./gradlew testDebugUnitTest --info

Habitica/build.gradle

@@ -240,6 +240,25 @@ if (HRPG_PROPS_FILE.canRead()) {
     throw new MissingResourceException('habitica.properties not found')
 }
 
+// Add Habitica Resources to resources
+final File HRPG_RES_FILE = new File('habitica.resources')
+if (HRPG_RES_FILE.canRead()) {
+    def Properties HRPG_RES = new Properties()
+    HRPG_RES.load(new FileInputStream(HRPG_RES_FILE))
+
+    if (HRPG_RES != null) {
+        android.buildTypes.all { buildType ->
+            HRPG_RES.any { property ->
+                buildType.resValue "string", property.key, "\"${property.value}\""
+            }
+        }
+    } else {
+        throw new InvalidUserDataException('habitica.resources found but some entries are missing')
+    }
+} else {
+    throw new MissingResourceException('habitica.resources not found')
+}
+
 tasks.whenTaskAdded { task ->
     if (task.name.equals("lint")) {
         task.enabled = false

Habitica/res/values/secret_strings.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <string name="fabric_key">CHANGE_ME</string>
-    <string name="facebook_app_id">CHANGE_ME</string>
-    <string name="amplitude_app_id">CHANGE_ME</string>
-</resources>

habitica.resources.example

@@ -0,0 +1,3 @@
+fabric_key=CHANGE_ME
+facebook_app_id=CHANGE_ME
+amplitude_app_id=CHANGE_ME