From 0416e0aa9c68205aa44844096f9f151ada9d0405 Mon Sep 17 00:00:00 2001
From: Jae Kwon <jae@tendermint.com>
Date: Tue, 6 Dec 2016 01:46:23 -0800
Subject: [PATCH] Close opened files

---
 group.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/group.go b/group.go
index 4de0d0346..ee1a94158 100644
--- a/group.go
+++ b/group.go
@@ -444,6 +444,7 @@ func (g *Group) readGroupInfo() GroupInfo {
 	if err != nil {
 		panic(err)
 	}
+	defer dir.Close()
 	fiz, err := dir.Readdir(0)
 	if err != nil {
 		panic(err)
@@ -598,6 +599,9 @@ func (gr *GroupReader) openFile(index int) error {
 	curReader := bufio.NewReader(curFile)
 
 	// Update gr.cur*
+	if gr.curFile != nil {
+		gr.curFile.Close() // TODO return error?
+	}
 	gr.curIndex = index
 	gr.curFile = curFile
 	gr.curReader = curReader