V0.3.3 (#330)

* switch branches

* update user interface

* switch branch

* switch branch

* change branch

* submit 0.3.3

pkg/utils/file/file.go

@@ -225,6 +225,48 @@ func CopyFile(src, dst, style string) error {
 	return os.Chmod(dst, srcinfo.Mode())
 }
 
+/**
+ * @description:
+ * @param {*} src
+ * @param {*} dst
+ * @param {string} style
+ * @return {*}
+ * @method:
+ * @router:
+ */
+func CopySingleFile(src, dst, style string) error {
+	var err error
+	var srcfd *os.File
+	var dstfd *os.File
+	var srcinfo os.FileInfo
+
+	if Exists(dst) {
+		if style == "skip" {
+			return nil
+		} else {
+			os.Remove(dst)
+		}
+	}
+
+	if srcfd, err = os.Open(src); err != nil {
+		return err
+	}
+	defer srcfd.Close()
+
+	if dstfd, err = os.Create(dst); err != nil {
+		return err
+	}
+	defer dstfd.Close()
+
+	if _, err = io.Copy(dstfd, srcfd); err != nil {
+		return err
+	}
+	if srcinfo, err = os.Stat(src); err != nil {
+		return err
+	}
+	return os.Chmod(dst, srcinfo.Mode())
+}
+
 //Check for duplicate file names
 func GetNoDuplicateFileName(fullPath string) string {
 	path, fileName := filepath.Split(fullPath)