From c590db2b8b9d72492d5a5269f19a105e9614369b Mon Sep 17 00:00:00 2001
From: Rob Pike <r@golang.org>
Date: Thu, 15 Nov 2012 10:42:39 -0800
Subject: [PATCH] sudo.bash: diagnose when the go tool is not in $PATH Fixes
 #4386.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/6854050
---
 src/sudo.bash | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/sudo.bash b/src/sudo.bash
index 40f8d1aa19..7b7d4f1cdd 100755
--- a/src/sudo.bash
+++ b/src/sudo.bash
@@ -12,6 +12,12 @@ Darwin)
 	exit 0
 esac
 
+# Check that the go command exists
+if ! go help >/dev/null 2>&1; then
+	echo "The go command is not in your PATH." >&2
+	exit 2
+fi
+
 eval $(go env)
 if ! [ -x $GOTOOLDIR/cov -a -x $GOTOOLDIR/prof ]; then
 	echo "You don't need to run sudo.bash." >&2
-- 
2.48.1