From 28d738e44a7d4566b4b2149fbafb727a566f516e Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Fri, 6 Mar 2020 00:54:46 +0100
Subject: [PATCH] Ensure that updating the file preserves its mode

Preserve the file mode when replacing it, this notably keeps
docs/doxygen/regen.sh executable when running misc/scripts/inc_year.

This uses GNU chmod --reference option which is not available on all
systems, but it shouldn't be a problem in practice.
---
 misc/scripts/run_sed_common.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/misc/scripts/run_sed_common.sh b/misc/scripts/run_sed_common.sh
index e3599732fe..2c0793fc58 100644
--- a/misc/scripts/run_sed_common.sh
+++ b/misc/scripts/run_sed_common.sh
@@ -37,6 +37,7 @@ run_sed() {
         rm $filename.$$
         msgc "unchanged"
     else
+        chmod --reference=$filename $filename.$$
         mv $filename.$$ $filename
         msgc "done"
     fi