Open file descriptor in "wt" mode for overwriting

app/src/main/kotlin/com/hippo/ehviewer/spider/ComicInfo.kt

@@ -99,7 +99,6 @@ fun ComicInfo.toSimpleTags() = listOfNotNull(
 
 fun ComicInfo.write(file: UniFile) {
     file.openOutputStream().use {
-        it.channel.truncate(0)
         OutputStreamWriter(it, Charsets.UTF_8).use { writer ->
             xmlStreaming.newGenericWriter(writer).use { xmlWriter ->
                 xml.encodeToWriter(xmlWriter, ComicInfo.serializer(), this)

app/src/main/kotlin/com/hippo/ehviewer/spider/SpiderDen.kt

@@ -191,8 +191,7 @@ class SpiderDen(val info: GalleryInfo) {
         val extension = MimeTypeMap.getFileExtensionFromUrl(url).ifEmpty { "jpg" }
         return saveResponseMeta(index, extension) { outFile ->
             outFile.openOutputStream().use {
-                val chan = it.channel.apply { truncate(0) }
-                response.bodyAsChannel().copyTo(chan)
+                response.bodyAsChannel().copyTo(it.channel)
             }
         }
     }

app/src/main/kotlin/com/hippo/ehviewer/util/FDUtils.kt

@@ -25,5 +25,5 @@ infix fun ParcelFileDescriptor.sendTo(fd: ParcelFileDescriptor) {
 }
 
 infix fun UniFile.sendTo(file: UniFile) = openFileDescriptor("r").use { src ->
-    file.openFileDescriptor("w").use { dst -> src sendTo dst }
+    file.openFileDescriptor("wt").use { dst -> src sendTo dst }
 }

app/src/main/kotlin/com/hippo/unifile/UniFileExtensions.kt

@@ -22,7 +22,7 @@ fun UniFile.openInputStream(): FileInputStream {
  * Use Native IO/NIO directly if possible, unless you need process file content on JVM!
  */
 fun UniFile.openOutputStream(): FileOutputStream {
-    return AutoCloseOutputStream(openFileDescriptor("w"))
+    return AutoCloseOutputStream(openFileDescriptor("wt"))
 }
 
 fun UniFile.sha1() = openFileDescriptor("r").use { sha1(it.fd) }