From 4c34b3473662d5b367b1c7f75cbe9e9f2e79835d Mon Sep 17 00:00:00 2001
From: Matt Baer <matt@write.as>
Date: Fri, 14 Jun 2019 16:43:18 -0400
Subject: [PATCH] Exit when no writefreely executable found

(or `writefreely -v` otherwise doesn't output anything)

Ref T555
---
 scripts/upgrade-server.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/upgrade-server.sh b/scripts/upgrade-server.sh
index 1bfab71..039fde8 100755
--- a/scripts/upgrade-server.sh
+++ b/scripts/upgrade-server.sh
@@ -36,6 +36,9 @@ url=`curl -s https://api.github.com/repos/writeas/writefreely/releases/latest |
 # check current version
 
 current=`./writefreely -v`
+if [ -z "$current" ]; then
+	exit 1
+fi
 
 echo "Current version is v${current:(-5):5}"