From f3a9ccc8a19508b364eb5c52ff3386575a91d50c Mon Sep 17 00:00:00 2001
From: Reya C <reya.gitea@reya.zone>
Date: Sat, 3 Apr 2021 02:28:03 -0400
Subject: [PATCH] Only use an open handle during the traversal section, not
 while waiting for subdirs

---
 drive-demuxer.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drive-demuxer.go b/drive-demuxer.go
index 2ce4f90..da0e8a7 100644
--- a/drive-demuxer.go
+++ b/drive-demuxer.go
@@ -274,6 +274,7 @@ func (s *Step) AreFilesIdentical(child string) bool {
 func (s *Step) Walk() {
 	wg := sync.WaitGroup{}
 
+	s.OpenHandles <- 1
 	children := s.ListChildren()
 	s.Bar.AddTotal(int64(len(children)))
 	for _, child := range children {
@@ -328,10 +329,8 @@ func (s *Step) Walk() {
 				wg.Add(1)
 				go func() {
 					defer func() {
-						<-s.OpenHandles
 						wg.Done()
 					}()
-					s.OpenHandles <- 1
 					substep.Walk()
 					s.RemoveInputDirs(child)
 					s.Bar.Increment()
@@ -345,6 +344,7 @@ func (s *Step) Walk() {
 		}
 	}
 
+	<-s.OpenHandles
 	wg.Wait()
 }