refactor file|path (#1409)

Co-authored-by: anqiansong <anqiansong@bytedance.com>

tools/goctl/api/tsgen/gen.go

@@ -7,7 +7,7 @@ import (
 	"github.com/logrusorgru/aurora"
 	"github.com/tal-tech/go-zero/core/logx"
 	"github.com/tal-tech/go-zero/tools/goctl/api/parser"
-	"github.com/tal-tech/go-zero/tools/goctl/util"
+	"github.com/tal-tech/go-zero/tools/goctl/util/pathx"
 	"github.com/urfave/cli"
 )
 
@@ -33,7 +33,7 @@ func TsCommand(c *cli.Context) error {
 	}
 
 	api.Service = api.Service.JoinPrefix()
-	logx.Must(util.MkdirIfNotExist(dir))
+	logx.Must(pathx.MkdirIfNotExist(dir))
 	logx.Must(genHandler(dir, webAPI, caller, api, unwrapAPI))
 	logx.Must(genComponents(dir, api))