From 231a7213b90a8dfba426737732e2dc6e62acfbad Mon Sep 17 00:00:00 2001
From: Lubos Kardos <lkardos@redhat.com>
Date: Tue, 19 Jan 2016 14:37:07 +0100
Subject: [PATCH] Fix %autosetup to not cause errors during run of rpmspec tool

Firstly %autosetup showed an error during its expansion if some patch
wasn't available, that is an error was showed during parsing of a spec
file. This caused showing an error during execution of rpmspec
tool (rhbz:1293687).

Now %autosetup doesn't cause an error during parsing of a spec file but
it causes an error during building of specfile if some patch is not
available. Also old macro %patch behaves similarly.
---
 macros.in | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/macros.in b/macros.in
index 319a1a3..f11affe 100644
--- a/macros.in
+++ b/macros.in
@@ -1122,8 +1122,15 @@ done \
 
 # Single patch application
 %apply_patch(qp:m:)\
-test -f %{1} || exit 1 ; \
-%{uncompress:%{1}} | %{expand:%__scm_apply_%{__scm} %{-q} %{-p:-p%{-p*}} %{-m:-m%{-m*}}}
+%{lua:\
+local file = rpm.expand("%{1}")\
+if posix.access(file, "r") then\
+    local options = rpm.expand("%{-q} %{-p:-p%{-p*}} %{-m:-m%{-m*}}")\
+    local scm_apply = rpm.expand("%__scm_apply_%{__scm}")\
+    print(rpm.expand("%{uncompress:"..file.."} | "..scm_apply.." "..options.."\\n"))\
+else\
+    print("echo 'Cannot read "..file.."'; exit 1;".."\\n")\
+end}
 
 # Automatically apply all patches
 %autopatch(vp:)\
-- 
1.9.3