From ff22ec31b68c1d7aa5b3be3ad547865d70854efd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Thu, 26 Jul 2018 13:26:53 +0300
Subject: [PATCH] build: noop clean during travis debsrc assembly step

---
 build/clean_go_build_cache.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/build/clean_go_build_cache.sh b/build/clean_go_build_cache.sh
index a55650c8f3..1666381d98 100755
--- a/build/clean_go_build_cache.sh
+++ b/build/clean_go_build_cache.sh
@@ -1,5 +1,12 @@
 #!/bin/sh
 
+# Cleaning the Go cache only makes sense if we actually have Go installed... or
+# if Go is actually callable. This does not hold true during deb packaging, so
+# we need an explicit check to avoid build failures.
+if ! command -v go > /dev/null; then
+  exit
+fi
+
 version_gt() {
   test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"
 }