ktaglib: autobuild taglib on gradle build

ktaglib/build.gradle

@@ -1,3 +1,5 @@
+import org.apache.tools.ant.taskdefs.condition.Os
+
 plugins {
     id 'com.android.library'
     id 'org.jetbrains.kotlin.android'
@@ -41,12 +43,21 @@ android {
     }
 }
 
-dependencies {
+task assembleTaglib(type: Exec) {
+    def jniDir = "$projectDir/src/main/cpp/"
+    def libs = new File("$jniDir/taglib/pkg")
+    if (libs.exists()) {
+        commandLine "true"
+        return
+    }
+    commandLine "sh", "-c", "$jniDir/build_taglib.sh $android.ndkDirectory"
+}
 
-    implementation 'androidx.core:core-ktx:1.15.0'
-    implementation 'androidx.appcompat:appcompat:1.7.0'
-    implementation 'com.google.android.material:material:1.12.0'
-    testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test.ext:junit:1.2.1'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.6.1'
-}
+afterEvaluate {
+    preDebugBuild.dependsOn assembleTaglib
+    preReleaseBuild.dependsOn assembleTaglib
+}
+
+clean {
+    delete "$projectDir/src/main/jni/ffmpeg/android-libs/"
+}

ktaglib/src/main/cpp/CMakeLists.txt

@@ -25,7 +25,7 @@ project("ktaglib")
 # for GameActivity/NativeActivity derived applications, the same library name must be
 # used in the AndroidManifest.xml file.
 set(taglib_location "${CMAKE_CURRENT_SOURCE_DIR}/taglib")
-set(taglib_pkg "${taglib_location}/android-libs/${ANDROID_ABI}")
+set(taglib_pkg "${taglib_location}/pkg/${ANDROID_ABI}")
 set(taglib_lib "${taglib_pkg}/lib")
 set(taglib_include "${taglib_pkg}/include")
 

ktaglib/src/main/java/com/example/ktaglib/KTagLib.kt

@@ -11,4 +11,4 @@ object KTagLib {
      * which is packaged with this application.
      */
     external fun stringFromJNI(): String
-}b
+}