From 3d284e19eb578b4cd9db2b698fb18e7e4c23a532 Mon Sep 17 00:00:00 2001
From: Nao YONASHIRO <yonashiro@r.recruit.co.jp>
Date: Wed, 7 Nov 2018 15:01:18 +0900
Subject: [PATCH] fix: unwrap error for os.IsNotExist

---
 container/common/helpers.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/container/common/helpers.go b/container/common/helpers.go
index 2aab6acc..4bd75f11 100644
--- a/container/common/helpers.go
+++ b/container/common/helpers.go
@@ -29,6 +29,7 @@ import (
 
 	"github.com/golang/glog"
 	"github.com/karrick/godirwalk"
+	"github.com/pkg/errors"
 )
 
 func DebugInfo(watches map[string][]string) map[string][]string {
@@ -165,7 +166,7 @@ func listDirectories(dirpath string, parent string, recursive bool, output map[s
 	dirents, err := godirwalk.ReadDirents(dirpath, buf)
 	if err != nil {
 		// Ignore if this hierarchy does not exist.
-		if os.IsNotExist(err) {
+		if os.IsNotExist(errors.Cause(err)) {
 			err = nil
 		}
 		return err