build: apply version to both modules

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

build.gradle

@@ -48,3 +48,5 @@ tasks {
         distributionType = Wrapper.DistributionType.ALL
     }
 }
+
+apply from: "version.gradle"

tunnel/build.gradle

@@ -10,8 +10,8 @@ android {
     defaultConfig {
         minSdkVersion 21
         targetSdkVersion 29
-        versionCode 1
-        versionName '1.0'
+        versionCode wireguardVersionCode
+        versionName wireguardVersionName
     }
     externalNativeBuild {
         cmake {

ui/build.gradle

@@ -22,8 +22,8 @@ android {
         applicationId 'com.wireguard.android'
         minSdkVersion 21
         targetSdkVersion 29
-        versionCode 465
-        versionName '0.0.20200309'
+        versionCode wireguardVersionCode
+        versionName wireguardVersionName
         buildConfigField 'int', 'MIN_SDK_VERSION', "$minSdkVersion.apiLevel"
     }
     // If the keystore file exists

version.gradle

@@ -0,0 +1,6 @@
+buildscript {
+    ext {
+        wireguardVersionCode = 465
+        wireguardVersionName = '0.0.20200309'
+    }
+}