Updated fileSize description

admin/dispather/sender.go

@@ -183,7 +183,8 @@ func SendDownloadCmd(peerNode *node.Node, remotePath string, localPath string) b
 	}
 
 	if downloadPacketRet.FileLen > 1024*1024*100 {
-		fmt.Print("this file is too large (>100M), do you still want to download it? (y/n) ")
+		fmt.Printf("this file is too large (%s), do you still want to download it? (y/n) ",
+			utils.GetFileSizeDescription(downloadPacketRet.FileLen))
 		var choise string
 		fmt.Scanf("%s", &choise)
 		if choise != "y" {
@@ -265,7 +266,8 @@ func SendUploadCmd(peerNode *node.Node, localPath string, remotePath string) boo
 	// 如果文件过大，提醒用户选择是否继续上次（过大的文件会影响其他命令数据的传输效率）
 	var fileSize = utils.GetFileSize(localPath)
 	if fileSize > 1024*1024*100 {
-		fmt.Print("this file is too large(>100M), do you still want to upload it? (y/n) ")
+		fmt.Printf("this file is too large (%s), do you still want to upload it? (y/n) ",
+			utils.GetFileSizeDescription(uint64(fileSize)))
 		var choise string
 		fmt.Scanf("%s", &choise)
 		if choise != "y" {

utils/utils.go

@@ -140,6 +140,21 @@ func GetFileSize(path string) int64 {
 	return fileSize
 }
 
+// GetFileSizeDescription 10.00G / 100.00M
+func GetFileSizeDescription(fileSize uint64) string {
+	fileSizeFloat := float64(fileSize)
+	const K = 1024 * 1.0
+	const M = K * 1024
+	const G = M * 1024
+	if fileSizeFloat >= G {
+		return fmt.Sprintf("%0.2fG", fileSizeFloat/G)
+	}
+	if fileSizeFloat >= M {
+		return fmt.Sprintf("%0.2fM", fileSizeFloat/M)
+	}
+	return fmt.Sprintf("%0.2fK", fileSizeFloat/K)
+}
+
 /* -------------- Calculate structure size ----------------- */
 func PacketSize(packet interface{}) (uint64, error) {