From 16a7ecf55aadead420aac30e8e517ffc32f095b8 Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <brad@danga.com>
Date: Sat, 26 Jan 2013 16:46:19 -0800
Subject: [PATCH] client: tolerate missing config file

Change-Id: I43fd2439b3eddb3d883d0db6cc6f23fe535aeb28
---
 pkg/client/config.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkg/client/config.go b/pkg/client/config.go
index c07777ae5..e69cbf2d3 100644
--- a/pkg/client/config.go
+++ b/pkg/client/config.go
@@ -57,9 +57,14 @@ func ConfigFilePath() string {
 
 var configOnce sync.Once
 var config = make(map[string]interface{})
+var parseConfigErr error
 
 func parseConfig() {
 	configPath := ConfigFilePath()
+	if _, err := os.Stat(configPath); os.IsNotExist(err) {
+		parseConfigErr = os.ErrNotExist
+		return
+	}
 
 	var err error
 	if config, err = jsonconfig.ReadFile(configPath); err != nil {
@@ -98,7 +103,6 @@ func serverOrDie() string {
 }
 
 func (c *Client) SetupAuth() error {
-	configOnce.Do(parseConfig)
 	if flagServer != nil && *flagServer != "" {
 		// If using an explicit blobserver, don't use auth
 		// configured from the config file, so we don't send
@@ -110,6 +114,7 @@ func (c *Client) SetupAuth() error {
 		}
 		return err
 	}
+	configOnce.Do(parseConfig)
 	return c.SetupAuthFromConfig(config)
 }