build variant

app/build.gradle

@@ -4,9 +4,9 @@ android {
     signingConfigs {
         release {
             keyAlias 'key0'
-            keyPassword 'xx'
+            keyPassword 'android'
             storeFile file('Z:/keys/androidKey.gpg')
-            storePassword 'xx'
+            storePassword 'android'
         }
     }
     compileSdkVersion 28
@@ -37,6 +37,11 @@ android {
     }
     productFlavors {
     }
+    sourceSets {
+        main { res.srcDirs = ['src/main/res'] }
+        release { res.srcDirs = ['src/main/res_release'] }
+        debug { res.srcDirs = ['src/main/res_debug'] }
+    }
 }
 
 dependencies {

app/src/main/res/values/strings.xml

@@ -1,5 +1,4 @@
 <resources>
-    <string name="app_name" translatable="false">pass</string>
     <string-array name="pref_vcs_list_values">
         <item>0</item>
     </string-array>

app/src/main/res_debug/values/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name" translatable="false">pass - debug</string>
+</resources>

app/src/main/res_release/values/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name" translatable="false">pass</string>
+</resources>