From 17f54f4873b27af1d8abd36a72d8661539761de1 Mon Sep 17 00:00:00 2001
From: Jonathan Lebon <jonathan@jlebon.com>
Date: Mon, 27 May 2019 11:55:09 -0400
Subject: [PATCH] cmd-build: Fix new builds from scratch

Minor regression from #515.
---
 src/cmd-build | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/cmd-build b/src/cmd-build
index ba6046e547..daf742c61a 100755
--- a/src/cmd-build
+++ b/src/cmd-build
@@ -196,6 +196,8 @@ if [ -n "${previous_build}" ]; then
     rpm-ostree --repo="${tmprepo}" db diff --format=json \
             "${previous_commit}" "${commit}" | \
         jq '{pkgdiff: .pkgdiff}' > tmp/diff.json
+else
+    echo '{}' > tmp/diff.json
 fi
 
 image_input_checksum=$( (echo "${commit}" && echo "${image_config_checksum}") | sha256sum_str)