From 63a4653eb2af6de3f9eca57350f9c52f09174689 Mon Sep 17 00:00:00 2001
From: yanweidong <david.yan@qq.com>
Date: Thu, 21 Aug 2025 10:59:18 +0800
Subject: [PATCH] add CopyFile

---
 utils/file.go | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/utils/file.go b/utils/file.go
index 21932ad..bcc47a8 100644
--- a/utils/file.go
+++ b/utils/file.go
@@ -2,6 +2,7 @@ package utils
 
 import (
 	"errors"
+	"fmt"
 	"io"
 	"os"
 	"path/filepath"
@@ -21,6 +22,32 @@ func StringToFile(path, content string) error {
 	return nil
 }
 
+// 文件复制
+func CopyFile(src, dst string) (int64, error) {
+	sourceFileStat, err := os.Stat(src)
+	if err != nil {
+		return 0, err
+	}
+	if !sourceFileStat.Mode().IsRegular() {
+		return 0, fmt.Errorf("%s is not a regular file", src)
+	}
+
+	source, err := os.Open(src)
+	if err != nil {
+		return 0, err
+	}
+	defer source.Close()
+
+	destination, err := os.Create(dst)
+	if err != nil {
+		return 0, err
+	}
+	defer destination.Close()
+
+	nBytes, err := io.Copy(destination, source)
+	return nBytes, err
+}
+
 // 递归遍历文件夹
 // rootDir: 文件夹根目录
 // s: 存储文件名的切片