From 5b2bdd3ef7a2f8966901f91b5341b64f9891969e Mon Sep 17 00:00:00 2001
From: Rolf Neugebauer <rn@rneugeba.io>
Date: Sat, 20 Oct 2018 01:02:56 +0100
Subject: [PATCH] kernel: Print unified diff if kernel config does not match

After 'make oldconfig' we check that that the kernel config
is as we expect and error if they don't. We used to print
the default 'diff' output on a mismatch but a unified diff
is easier to read.

Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
---
 kernel/Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/Dockerfile b/kernel/Dockerfile
index 4fbbf944f..8d2d43cf0 100644
--- a/kernel/Dockerfile
+++ b/kernel/Dockerfile
@@ -112,7 +112,7 @@ RUN case $(uname -m) in \
     fi && \
     make defconfig && \
     make oldconfig && \
-    if [ -z "${EXTRA}" ] && [ -z "${DEBUG}" ]; then diff .config ${KERNEL_DEF_CONF}; fi
+    if [ -z "${EXTRA}" ] && [ -z "${DEBUG}" ]; then diff -u .config ${KERNEL_DEF_CONF}; fi
 
 
 # Kernel