From ab9a19a85b94ef292bf96d646abbfbd740465661 Mon Sep 17 00:00:00 2001
From: Simon Thulbourn <simon+github@thulbourn.com>
Date: Fri, 9 Jan 2015 23:08:52 +0000
Subject: [PATCH] Adds check for SSH keygen command

Adds a check to find ssh-keygen in the user's $PATH, in the event it
can't find it, return an error with a friendly message

Signed-off-by: Simon Thulbourn <simon+github@thulbourn.com>
---
 ssh/ssh.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ssh/ssh.go b/ssh/ssh.go
index 383532e1ae..080dd1236b 100644
--- a/ssh/ssh.go
+++ b/ssh/ssh.go
@@ -36,6 +36,10 @@ func GetSSHCommand(host string, port int, user string, sshKey string, args ...st
 }
 
 func GenerateSSHKey(path string) error {
+	if _, err := exec.LookPath("ssh-keygen"); err != nil {
+		return fmt.Errorf("ssh-keygen not found in the path, please install ssh-keygen")
+	}
+
 	if _, err := os.Stat(path); err != nil {
 		if !os.IsNotExist(err) {
 			return err