From 324e7be4b252c13002bca6a9d82e7b2e43664634 Mon Sep 17 00:00:00 2001
From: Christian Stewart <christian@paral.in>
Date: Mon, 26 Nov 2018 22:59:32 -0800
Subject: [PATCH] Fix faulty runc version commit scrape

This commit replaces faulty logic to determine the runc version commit hash.

The original logic takes the second line of the output of "runc --version" and
does not work if there are a different number of lines printed from the command
than expected. The buildroot version of runc outputs two lines instead of the
expected three, causing the error:

unknown output format: runc version commit: ...

This patch replaces this logic with a simple scan of the "runc --version"
output, searching for the "runc version commit" prefixed line.

Signed-off-by: Christian Stewart <christian@paral.in>
---
 daemon/info_unix.go | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/daemon/info_unix.go b/daemon/info_unix.go
index 60b2f99870..688a510796 100644
--- a/daemon/info_unix.go
+++ b/daemon/info_unix.go
@@ -32,10 +32,11 @@ func (daemon *Daemon) fillPlatformInfo(v *types.Info, sysInfo *sysinfo.SysInfo)
 	defaultRuntimeBinary := daemon.configStore.GetRuntime(v.DefaultRuntime).Path
 	if rv, err := exec.Command(defaultRuntimeBinary, "--version").Output(); err == nil {
 		parts := strings.Split(strings.TrimSpace(string(rv)), "\n")
-		if len(parts) == 3 {
-			parts = strings.Split(parts[1], ": ")
-			if len(parts) == 2 {
-				v.RuncCommit.ID = strings.TrimSpace(parts[1])
+		for _, pt := range parts {
+			ptKv := strings.Split(pt, ":")
+			if strings.HasSuffix(strings.TrimSpace(ptKv[0]), "commit") {
+				v.RuncCommit.ID = strings.TrimSpace(ptKv[1])
+				break
 			}
 		}
 
-- 
2.18.1