update

Author: admpub

file.go

@@ -121,6 +121,7 @@ func Copy(src, dest string) error {
 	if _, err = io.Copy(dw, sr); err != nil {
 		return fmt.Errorf("writing to output file failed: %w", err)
 	}
+	dw.Sync()
 
 	// Set back file information.
 	if err = os.Chtimes(dest, si.ModTime(), si.ModTime()); err != nil {
@@ -134,12 +135,14 @@ func Copy(src, dest string) error {
    Rename(source, destination) will work moving file between folders
 */
 func Rename(src, dest string) error {
-	if err := os.Rename(src, dest); err != nil {
-		if !strings.HasSuffix(err.Error(), `invalid cross-device link`) {
-			return err
-		}
+	err := os.Rename(src, dest)
+	if err == nil {
+		return nil
+	}
+	if !strings.HasSuffix(err.Error(), `invalid cross-device link`) {
+		return err
 	}
-	err := Copy(src, dest)
+	err = Copy(src, dest)
 	if err != nil {
 		if !strings.HasSuffix(err.Error(), `operation not permitted`) {
 			return err

http.go

@@ -89,6 +89,10 @@ func HTTPGetToFile(client *http.Client, url string, header http.Header, fileName
 	}
 	defer f.Close()
 	_, err = io.Copy(f, rc)
+	if err != nil {
+		return err
+	}
+	err = f.Sync()
 	return err
 }
 

range_downloader.go

@@ -144,7 +144,10 @@ func assembleChunk(filename string, outfile *os.File) error {
 		return err
 	}
 	defer chunkFile.Close()
-	io.Copy(outfile, chunkFile)
+	_, err = io.Copy(outfile, chunkFile)
+	if err != nil {
+		return err
+	}
 	return os.Remove(filename)
 }