Move tag database downloading to FileChannel based operation

app/src/main/java/com/hippo/ehviewer/client/EhTagDatabase.kt

@@ -20,10 +20,9 @@ import com.hippo.ehviewer.AppConfig
 import com.hippo.ehviewer.EhApplication
 import com.hippo.ehviewer.EhApplication.Companion.okHttpClient
 import com.hippo.ehviewer.R
-import com.hippo.util.ExceptionUtils
 import com.hippo.util.HashCodeUtils
 import com.hippo.yorozuya.FileUtils
-import com.hippo.yorozuya.IOUtils
+import com.hippo.yorozuya.copyToFile
 import eu.kanade.tachiyomi.util.lang.launchIO
 import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.flow.Flow
@@ -37,7 +36,6 @@ import org.json.JSONException
 import org.json.JSONObject
 import java.io.File
 import java.io.FileInputStream
-import java.io.FileOutputStream
 import java.io.IOException
 import java.nio.charset.StandardCharsets
 import java.security.MessageDigest
@@ -197,22 +195,21 @@ object EhTagDatabase {
     private fun save(client: OkHttpClient, url: String, file: File): Boolean {
         val request: Request = Request.Builder().url(url).build()
         val call = client.newCall(request)
-        try {
+        runCatching {
             call.execute().use { response ->
                 if (!response.isSuccessful) {
                     return false
                 }
-                val body = response.body
-                body.byteStream()
-                    .use { ins -> FileOutputStream(file).use { os -> IOUtils.copy(ins, os) } }
+                response.body.use {
+                    it.copyToFile(file)
+                }
                 return true
             }
-        } catch (t: Throwable) {
-            FileUtils.delete(file)
-            t.printStackTrace()
-            ExceptionUtils.throwIfFatal(t)
-            return false
+        }.onFailure {
+            file.delete()
+            it.printStackTrace()
         }
+        return false
     }
 
     @OptIn(DelicateCoroutinesApi::class)

app/src/main/java/com/hippo/yorozuya/IOUtils.kt

@@ -0,0 +1,19 @@
+package com.hippo.yorozuya
+
+import okhttp3.ResponseBody
+import java.io.File
+
+fun ResponseBody.copyToFile(file: File) {
+    val os = file.outputStream()
+    val channel = os.channel
+    val source = source()
+    try {
+        channel.transferFrom(source, 0, contentLength())
+    } catch (e: Throwable) {
+        throw e
+    } finally {
+        source.close()
+        channel.close()
+        os.close()
+    }
+}