Better modular build

app/CMakeLists.txt

@@ -2,33 +2,26 @@ cmake_minimum_required(VERSION 3.10)
 
 project(DroidFS)
 
-add_subdirectory(${PROJECT_SOURCE_DIR}/libcryfs/)
+option(GOCRYPTFS "build libgocryptfs" ON)
+option(CRYFS "build libcryfs" ON)
 
-add_library(
-        gocryptfs
-        SHARED
-        IMPORTED
-)
+if (GOCRYPTFS)
+	add_library(gocryptfs SHARED IMPORTED)
+	set_target_properties(
+		gocryptfs
+		PROPERTIES IMPORTED_LOCATION
+		${PROJECT_SOURCE_DIR}/libgocryptfs/build/${ANDROID_ABI}/libgocryptfs.so
+	)
+	add_library(gocryptfs_jni SHARED src/main/native/gocryptfs_jni.c)
+	target_include_directories(gocryptfs_jni PRIVATE ${PROJECT_SOURCE_DIR}/libgocryptfs/build/${ANDROID_ABI})
+	target_link_libraries(gocryptfs_jni gocryptfs)
+endif()
 
-set_target_properties(
-        gocryptfs
-        PROPERTIES IMPORTED_LOCATION
-        ${PROJECT_SOURCE_DIR}/libgocryptfs/build/${ANDROID_ABI}/libgocryptfs.so
-)
-
-add_library(
-        gocryptfs_jni
-        SHARED
-        src/main/native/gocryptfs_jni.c
-)
-
-target_link_libraries(
-        gocryptfs_jni
-        gocryptfs
-)
-
-add_library(cryfs_jni SHARED src/main/native/libcryfs.c)
-target_link_libraries(cryfs_jni fspp-fuse)
+if (CRYFS)
+	add_subdirectory(${PROJECT_SOURCE_DIR}/libcryfs)
+	add_library(cryfs_jni SHARED src/main/native/libcryfs.c)
+	target_link_libraries(cryfs_jni libcryfs-jni)
+endif()
 
 add_library(
         avformat
@@ -72,14 +65,11 @@ add_library(
         src/main/native/libmux.c
 )
 
+target_include_directories(mux PRIVATE ${PROJECT_SOURCE_DIR}/ffmpeg/build/${ANDROID_ABI})
+
 target_link_libraries(
         mux
         avformat
         avcodec
         avutil
 )
-
-include_directories(
-        ${PROJECT_SOURCE_DIR}/libgocryptfs/build/${ANDROID_ABI}
-        ${PROJECT_SOURCE_DIR}/ffmpeg/build/${ANDROID_ABI}
-)

app/build.gradle

@@ -1,9 +1,16 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 
-ext {
-    enableCryFS = true
-    enableGocryptfs = true
+if (hasProperty("disableCryFS")) {
+    ext.disableCryFS = getProperty("disableCryFS")
+} else {
+    ext.disableCryFS = false
+}
+
+if (hasProperty("disableGocryptfs")) {
+    ext.disableGocryptfs = getProperty("disableGocryptfs")
+} else {
+    ext.disableGocryptfs = false
 }
 
 android {
@@ -28,12 +35,11 @@ android {
         }
 
         externalNativeBuild.cmake {
-            targets "mux"
-            if (project.ext.enableGocryptfs) {
-                targets += "gocryptfs_jni"
+            if (project.ext.disableGocryptfs) {
+                arguments "-DGOCRYPTFS=OFF"
             }
-            if (project.ext.enableCryFS) {
-                targets += "cryfs_jni"
+            if (project.ext.disableCryFS) {
+		arguments "-DCRYFS=OFF"
             }
         }
     }
@@ -49,8 +55,8 @@ android {
 
     applicationVariants.all { variant ->
         variant.resValue "string", "versionName", variant.versionName
-        buildConfigField "boolean", "CRYFS_ENABLED", "${project.ext.enableCryFS}"
-        buildConfigField "boolean", "GOCRYPTFS_ENABLED", "${project.ext.enableGocryptfs}"
+        buildConfigField "boolean", "CRYFS_DISABLED", "${project.ext.disableCryFS}"
+        buildConfigField "boolean", "GOCRYPTFS_DISABLED", "${project.ext.disableGocryptfs}"
     }
 
     buildFeatures {

app/libcryfs

@@ -1 +1 @@
-Subproject commit fb593c468c62c2f92b0420e80e1f77c001dd3a24
+Subproject commit c0af6c0bc2045bb53f65fde02d192d5aca436eae

app/src/main/java/sushi/hardcore/droidfs/MainActivity.kt

@@ -345,7 +345,7 @@ class MainActivity : BaseActivity(), VolumeAdapter.Listener {
         menu.findItem(R.id.change_password).isVisible =
             onlyOneAndWriteable &&
             // Only gocryptfs volumes support password change
-            BuildConfig.GOCRYPTFS_ENABLED &&
+            !BuildConfig.GOCRYPTFS_DISABLED &&
             volumeAdapter.volumes[volumeAdapter.selectedItems.first()].type == EncryptedVolume.GOCRYPTFS_VOLUME_TYPE
         menu.findItem(R.id.remove_default_open).isVisible =
             onlyOneSelected &&
@@ -461,10 +461,10 @@ class MainActivity : BaseActivity(), VolumeAdapter.Listener {
 
     @SuppressLint("NewApi") // fingerprintProtector is non-null only when SDK_INT >= 23
     private fun openVolume(volume: SavedVolume, position: Int) {
-        if (volume.type == EncryptedVolume.GOCRYPTFS_VOLUME_TYPE && !BuildConfig.GOCRYPTFS_ENABLED) {
+        if (volume.type == EncryptedVolume.GOCRYPTFS_VOLUME_TYPE && BuildConfig.GOCRYPTFS_DISABLED) {
             Toast.makeText(this, R.string.gocryptfs_disabled, Toast.LENGTH_SHORT).show()
             return
-        } else if (volume.type == EncryptedVolume.CRYFS_VOLUME_TYPE && !BuildConfig.CRYFS_ENABLED) {
+        } else if (volume.type == EncryptedVolume.CRYFS_VOLUME_TYPE && BuildConfig.CRYFS_DISABLED) {
             Toast.makeText(this, R.string.cryfs_disabled, Toast.LENGTH_SHORT).show()
             return
         }

app/src/main/java/sushi/hardcore/droidfs/add_volume/CreateVolumeFragment.kt

@@ -85,10 +85,10 @@ class CreateVolumeFragment: Fragment() {
         if (!usfFingerprint || fingerprintProtector == null) {
             binding.checkboxSavePassword.visibility = View.GONE
         }
-        if (BuildConfig.GOCRYPTFS_ENABLED) {
+        if (!BuildConfig.GOCRYPTFS_DISABLED) {
             volumeTypes.add(resources.getString(R.string.gocryptfs))
         }
-        if (BuildConfig.CRYFS_ENABLED) {
+        if (!BuildConfig.CRYFS_DISABLED) {
             volumeTypes.add(resources.getString(R.string.cryfs))
         }
         binding.spinnerVolumeType.adapter = ArrayAdapter(

app/src/main/native/libcryfs.c

@@ -1,21 +1,6 @@
 #include <sys/stat.h>
 #include <jni.h>
-
-jlong cryfs_init(JNIEnv* env, jstring jbaseDir, jstring jlocalSateDir, jbyteArray jpassword, jboolean createBaseDir, jstring jcipher);
-jlong cryfs_create(JNIEnv* env, jlong fusePtr, jstring jpath, mode_t mode);
-jlong cryfs_open(JNIEnv* env, jlong fusePtr, jstring jpath, jint flags);
-jint cryfs_read(JNIEnv* env, jlong fusePtr, jlong fileHandle, jbyteArray jbuffer, jlong offset);
-jint cryfs_write(JNIEnv* env, jlong fusePtr, jlong fileHandle, jlong offset, jbyteArray jbuffer, jint size);
-jint cryfs_truncate(JNIEnv* env, jlong fusePtr, jstring jpath, jlong size);
-jint cryfs_unlink(JNIEnv* env, jlong fusePtr, jstring jpath);
-jint cryfs_release(jlong fusePtr, jlong fileHandle);
-jlong cryfs_readdir(JNIEnv* env, jlong fusePtr, jstring jpath ,void* data, int(void*, const char*, const struct stat*));
-jint cryfs_mkdir(JNIEnv* env, jlong fusePtr, jstring jpath, mode_t mode);
-jint cryfs_rmdir(JNIEnv* env, jlong fusePtr, jstring jpath);
-jint cryfs_getattr(JNIEnv* env, jlong fusePtr, jstring jpath, struct stat* stat);
-jint cryfs_rename(JNIEnv* env, jlong fusePtr, jstring jsrcPath, jstring jdstPath);
-void cryfs_destroy(jlong fusePtr);
-jboolean cryfs_is_closed(jlong fusePtr);
+#include <libcryfs-jni.h>
 
 JNIEXPORT jlong JNICALL
 Java_sushi_hardcore_droidfs_filesystems_CryfsVolume_00024Companion_nativeInit(JNIEnv *env, jobject thiz,