From f30f823bf50de6581f547aee842286584c4b6990 Mon Sep 17 00:00:00 2001
From: Victor Vieux <victor.vieux@docker.com>
Date: Fri, 28 Feb 2014 00:32:58 +0000
Subject: [PATCH] fix docker info with lxc 1.0.0

Docker-DCO-1.1-Signed-off-by: Victor Vieux <victor.vieux@docker.com> (github: vieux)
---
 execdriver/lxc/driver.go | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/execdriver/lxc/driver.go b/execdriver/lxc/driver.go
index f1c93af789..8f8dcbda17 100644
--- a/execdriver/lxc/driver.go
+++ b/execdriver/lxc/driver.go
@@ -206,11 +206,20 @@ func (d *driver) Restore(c *execdriver.Command) error {
 }
 
 func (d *driver) version() string {
-	version := ""
-	if output, err := exec.Command("lxc-version").CombinedOutput(); err == nil {
-		outputStr := string(output)
-		if len(strings.SplitN(outputStr, ":", 2)) == 2 {
-			version = strings.TrimSpace(strings.SplitN(outputStr, ":", 2)[1])
+	var (
+		version string
+		output  []byte
+		err     error
+	)
+	if _, errPath := exec.LookPath("lxc-version"); errPath == nil {
+		output, err = exec.Command("lxc-version").CombinedOutput()
+	} else {
+		output, err = exec.Command("lxc-start", "--version").CombinedOutput()
+	}
+	if err == nil {
+		version = strings.TrimSpace(string(output))
+		if parts := strings.SplitN(version, ":", 2); len(parts) == 2 {
+			version = strings.TrimSpace(parts[1])
 		}
 	}
 	return version