From dc495d72ce20e5e08eb826f0d2163371cbefe6f3 Mon Sep 17 00:00:00 2001
From: Ani Balasubramaniam <ani@anionline.me>
Date: Sun, 22 Mar 2020 11:21:56 -0700
Subject: [PATCH] Ensure that passing in no custom vars doesn't terminate
 execution. Thanks Scott!

---
 build-docker.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/build-docker.sh b/build-docker.sh
index 2141451..0329819 100755
--- a/build-docker.sh
+++ b/build-docker.sh
@@ -7,7 +7,8 @@ DOCKER="docker"
 
 # Ensure that any config variables we passed in are written to an env_file
 # so invocations in subsquent shells preserve these values
-printenv | grep 'FWVERSION=\|SERIAL=\|ROOTUSER\|ROOTUSERPASS' > "$DIR/.customvars"
+# Add || true so passing no custom vars doesn't bork up execution
+printenv | grep 'FWVERSION=\|SERIAL=\|ROOTUSER\|ROOTUSERPASS' || true > "$DIR/.customvars"
 
 if ! ${DOCKER} ps >/dev/null 2>&1; then
 	DOCKER="sudo docker"