From a827f91affd4b3e6211dda733ce9b3bcead3fd81 Mon Sep 17 00:00:00 2001
From: Simon Pasquier <spasquie@redhat.com>
Date: Tue, 7 Aug 2018 12:19:19 +0200
Subject: [PATCH] Makefile: improve 'make style' reporting

Signed-off-by: Simon Pasquier <spasquie@redhat.com>
---
 Makefile.common | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Makefile.common b/Makefile.common
index 61ef11da9..c9d832373 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -49,7 +49,12 @@ all: style staticcheck unused build test
 .PHONY: common-style
 common-style:
 	@echo ">> checking code style"
-	! $(GOFMT) -d $$(find . -path ./vendor -prune -o -name '*.go' -print) | grep '^'
+	@fmtRes=$$($(GOFMT) -d $$(find . -path ./vendor -prune -o -name '*.go' -print)); \
+	if [ -n "$${fmtRes}" ]; then \
+		echo "gofmt checking failed!"; echo "$${fmtRes}"; echo; \
+		echo "Please ensure you are using $$($(GO) version) for formatting code."; \
+		exit 1; \
+	fi
 
 .PHONY: common-check_license
 common-check_license: