add some utils

utils/fs/dir.go

@@ -0,0 +1,40 @@
+package fs
+
+import (
+	"atom/providers/log"
+	"errors"
+	"os"
+
+	"go.uber.org/zap"
+)
+
+func PathExists(path string) (bool, error) {
+	fi, err := os.Stat(path)
+	if err == nil {
+		if fi.IsDir() {
+			return true, nil
+		}
+		return false, errors.New("存在同名文件")
+	}
+	if os.IsNotExist(err) {
+		return false, nil
+	}
+	return false, err
+}
+
+func CreateDir(dirs ...string) (err error) {
+	for _, v := range dirs {
+		exist, err := PathExists(v)
+		if err != nil {
+			return err
+		}
+		if !exist {
+			log.Debug("create directory" + v)
+			if err := os.MkdirAll(v, os.ModePerm); err != nil {
+				log.Error("create directory"+v, zap.Any(" error:", err))
+				return err
+			}
+		}
+	}
+	return err
+}