Refactor FileHelper (a11fd554) · Commits · e / os / Mail

legacy/core/src/main/java/com/fsck/k9/helper/FileHelper.kt

+14 −35

Original line number	Diff line number	Diff line
		package com.fsck.k9.helper

		import java.io.File
		import java.io.FileInputStream
		import java.io.FileOutputStream
		import java.io.IOException
		import org.apache.commons.io.IOUtils
		import timber.log.Timber

		object FileHelper {

		@JvmStatic
		fun touchFile(parentDir: File?, name: String?) {
		@Suppress("TooGenericExceptionCaught")
		fun touchFile(parentDir: File, name: String) {
		val file = File(parentDir, name)
		try {
		if (!file.exists()) {
		@@ -26,30 +25,13 @@ object FileHelper {
		}
		}

		@Throws(IOException::class)
		private fun copyFile(from: File, to: File) {
		val `in` = FileInputStream(from)
		val out = FileOutputStream(to)
		try {
		val buffer = ByteArray(1024)
		var count: Int
		while (`in`.read(buffer).also { count = it } > 0) {
		out.write(buffer, 0, count)
		}
		out.close()
		} finally {
		IOUtils.closeQuietly(`in`)
		IOUtils.closeQuietly(out)
		}
		}

		@JvmStatic
		@Throws(IOException::class)
		fun renameOrMoveByCopying(from: File, to: File) {
		deleteFileIfExists(to)
		val renameFailed = !from.renameTo(to)
		if (renameFailed) {
		copyFile(from, to)
		from.copyTo(target = to, overwrite = true)
		val deleteFromFailed = !from.delete()
		if (deleteFromFailed) {
		Timber.e("Unable to delete source file after copying to destination!")
		@@ -58,29 +40,26 @@ object FileHelper {
		}

		@Throws(IOException::class)
		private fun deleteFileIfExists(to: File) {
		val fileDoesNotExist = !to.exists()
		if (fileDoesNotExist) {
		return
		private fun deleteFileIfExists(file: File) {
		if (file.exists() && !file.delete()) {
		throw IOException("Unable to delete file: ${file.absolutePath}")
		}
		val deleteOk = to.delete()
		if (deleteOk) {
		return
		}
		throw IOException("Unable to delete file: " + to.absolutePath)
		}

		@Suppress("TooGenericExceptionCaught")
		fun move(from: File, to: File): Boolean {
		if (to.exists()) {
		if (!to.delete()) {
		Timber.d("Unable to delete file: %s", to.absolutePath)
		}
		}
		if (!to.getParentFile().mkdirs()) {
		Timber.d("Unable to make directories: %s", to.getParentFile().absolutePath)

		val parent = to.parentFile
		if (parent != null && !parent.mkdirs()) {
		Timber.d("Unable to make directories: %s", parent.absolutePath)
		}
		return try {
		copyFile(from, to)
		from.copyTo(target = to, overwrite = true)
		val deleteFromFailed = !from.delete()
		if (deleteFromFailed) {
		Timber.e("Unable to delete source file after copying to destination!")
		@@ -119,7 +98,7 @@ object FileHelper {
		Timber.w("cannot create directory %s", toDir.absolutePath)
		}
		}
		val files = fromDir.listFiles()
		val files = fromDir.listFiles().orEmpty()
		for (file in files) {
		if (file.isDirectory()) {
		moveRecursive(file, File(toDir, file.getName()))