From 6d8ecba42381d946658b6ea09936345b692d7d0d Mon Sep 17 00:00:00 2001
From: Oliver Chang <ochang@chromium.org>
Date: Thu, 30 Mar 2017 14:20:27 -0700
Subject: [PATCH] [infra] Break loudly when a build script incorrectly uses
 /out instead of $OUT

---
 infra/gcb/build.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/infra/gcb/build.py b/infra/gcb/build.py
index b451aebee..9a1bfbb99 100755
--- a/infra/gcb/build.py
+++ b/infra/gcb/build.py
@@ -154,7 +154,9 @@ def get_build_steps(project_yaml):
             'args': [
               'bash',
               '-c',
-              'cd /src/{1} && mkdir -p {0} && compile'.format(out, name),
+              # Remove /out to break loudly when a build script incorrectly uses
+              # /out instead of $OUT.
+              'rm -r /out && cd /src/{1} && mkdir -p {0} && compile'.format(out, name),
               ],
             },
           # zip binaries