From b6f74b66d53e2f4bc59ef574a4b6bedb61e5185c Mon Sep 17 00:00:00 2001
From: Steve Streeting <steve@stevestreeting.com>
Date: Fri, 11 Mar 2016 09:24:10 +0000
Subject: [PATCH] Protect http client cache with mutex

---
 lfs/config.go | 1 +
 lfs/http.go   | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/lfs/config.go b/lfs/config.go
index f405679f..ca9164d8 100644
--- a/lfs/config.go
+++ b/lfs/config.go
@@ -46,6 +46,7 @@ type FetchPruneConfig struct {
 type Configuration struct {
 	CurrentRemote         string
 	httpClients           map[string]*HttpClient
+	httpClientsMutex      sync.Mutex
 	redirectingHttpClient *http.Client
 	ntlmSession           ntlm.ClientSession
 	envVars               map[string]string
diff --git a/lfs/http.go b/lfs/http.go
index 6067dcce..ecce0b75 100644
--- a/lfs/http.go
+++ b/lfs/http.go
@@ -100,6 +100,9 @@ func (c *HttpClient) Do(req *http.Request) (*http.Response, error) {
 
 // HttpClient returns a new HttpClient for the given host (which may be "host:port")
 func (c *Configuration) HttpClient(host string) *HttpClient {
+	c.httpClientsMutex.Lock()
+	defer c.httpClientsMutex.Unlock()
+
 	if c.httpClients == nil {
 		c.httpClients = make(map[string]*HttpClient)
 	}