Ensure JNI directory exist during build

Adds a Gradle task that checks whether the JNI directory used for
Mullvad native libs exist. The task is set to run before the pre-build
task.

1 files changed, 11 insertions, 0 deletions

diff --git a/android/app/build.gradle.kts b/android/app/build.gradle.kts
index dd7d97d1ec..54b2b96643 100644
--- a/android/app/build.gradle.kts
+++ b/android/app/build.gradle.kts
@@ -1,3 +1,4 @@
+import com.android.build.gradle.internal.tasks.factory.dependsOn
 import java.io.FileInputStream
 import java.util.Properties
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
@@ -104,6 +105,8 @@ android {
             }
         }
     }
+
+    project.tasks.preBuild.dependsOn("ensureJniDirectoryExist")
 }
 
 configure<org.owasp.dependencycheck.gradle.extension.DependencyCheckExtension> {
@@ -131,6 +134,14 @@ tasks.register("copyExtraAssets", Copy::class) {
     into(extraAssetsDirectory)
 }
 
+tasks.register("ensureJniDirectoryExist") {
+    doFirst {
+        if (!file(extraJniDirectory).exists()) {
+            throw GradleException("Missing JNI directory: $extraJniDirectory")
+        }
+    }
+}
+
 play {
     serviceAccountCredentials = file("play-api-key.json")
 }