fix: resource patcher

src/main/kotlin/app/revanced/utils/filesystem/FileSystemUtils.kt

@@ -1,63 +0,0 @@
-package app.revanced.utils.filesystem
-
-import java.io.Closeable
-import java.io.File
-import java.nio.file.FileSystem
-import java.nio.file.FileSystems
-import java.nio.file.Files
-
-internal class FileSystemUtils(
-    file: File
-) : Closeable {
-    private var fileSystem: FileSystem
-
-    init {
-        fileSystem = FileSystems.newFileSystem(file.toPath(), null as ClassLoader?)
-    }
-
-    private fun deleteDirectory(dirPath: String) {
-        val files = Files.walk(fileSystem.getPath("$dirPath/"))
-
-        files
-            .sorted(Comparator.reverseOrder())
-            .forEach {
-
-                Files.delete(it)
-            }
-
-        files.close()
-    }
-
-
-    internal fun replaceDirectory(replacement: File) {
-        if (!replacement.isDirectory) throw Exception("${replacement.name} is not a directory.")
-
-        // FIXME: make this delete the directory recursively
-        //deleteDirectory(replacement.name)
-        //val path = Files.createDirectory(fileSystem.getPath(replacement.name))
-
-        val excludeFromPath = replacement.path.removeSuffix(replacement.name)
-        for (path in Files.walk(replacement.toPath())) {
-            val file = path.toFile()
-            if (file.isDirectory) {
-                val relativePath = path.toString().removePrefix(excludeFromPath)
-                val fileSystemPath = fileSystem.getPath(relativePath)
-                if (!Files.exists(fileSystemPath)) Files.createDirectory(fileSystemPath)
-
-                continue
-            }
-
-            replaceFile(path.toString().removePrefix(excludeFromPath), file.readBytes())
-        }
-    }
-
-    internal fun replaceFile(sourceFile: String, content: ByteArray) {
-        val path = fileSystem.getPath(sourceFile)
-        Files.deleteIfExists(path)
-        Files.write(path, content)
-    }
-
-    override fun close() {
-        fileSystem.close()
-    }
-}

src/main/kotlin/app/revanced/utils/filesystem/ZipFileSystemUtils.kt

@@ -0,0 +1,59 @@
+package app.revanced.utils.filesystem
+
+import java.io.Closeable
+import java.io.File
+import java.nio.file.FileSystems
+import java.nio.file.Files
+import java.nio.file.Path
+import java.util.zip.ZipEntry
+
+internal class ZipFileSystemUtils(
+    file: File
+) : Closeable {
+    private var zipFileSystem = FileSystems.newFileSystem(file.toPath(), mapOf("noCompression" to true))
+
+    private fun Path.deleteRecursively() {
+        if (Files.isDirectory(this)) {
+            Files.list(this).forEach { path ->
+                path.deleteRecursively()
+            }
+        }
+
+        Files.delete(this)
+    }
+
+    internal fun writePathRecursively(path: Path) {
+        Files.list(path).let { fileStream ->
+            fileStream.forEach { filePath ->
+                val fileSystemPath = filePath.getRelativePath(path)
+                fileSystemPath.deleteRecursively()
+            }
+
+            fileStream
+        }.close()
+
+        Files.walk(path).let { fileStream ->
+            fileStream.skip(1).forEach { filePath ->
+                val relativePath = filePath.getRelativePath(path)
+
+                if (Files.isDirectory(filePath)) {
+                    Files.createDirectory(relativePath)
+                    return@forEach
+                }
+
+                Files.copy(filePath, relativePath)
+            }
+
+            fileStream
+        }.close()
+    }
+
+    internal fun write(path: String, content: ByteArray) = Files.write(zipFileSystem.getPath(path), content)
+
+    private fun Path.getRelativePath(path: Path): Path = zipFileSystem.getPath(path.relativize(this).toString())
+
+    internal fun uncompress(vararg paths: String) =
+        paths.forEach { Files.setAttribute(zipFileSystem.getPath(it), "zip:method", ZipEntry.STORED) }
+
+    override fun close() = zipFileSystem.close()
+}