From 71735652e812d98f6183ae4305c09a449298311f Mon Sep 17 00:00:00 2001
From: Martin Winkler <efelon@winklerfamilie.eu>
Date: Wed, 22 May 2019 22:29:43 +0200
Subject: [PATCH] Preserving timestamp when rotating original file

---
 piwigo_thumbgen.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
 mode change 100755 => 100644 piwigo_thumbgen.sh

diff --git a/piwigo_thumbgen.sh b/piwigo_thumbgen.sh
old mode 100755
new mode 100644
index 0e70d2b..b9bfca4
--- a/piwigo_thumbgen.sh
+++ b/piwigo_thumbgen.sh
@@ -66,8 +66,10 @@ do
 			if [ "$quali" -le "0" ]; then
 				quali=94
 			fi
-			echo "rotate with quality $quali : $file"
-			mogrify -auto-orient -quality ${quali} "${file}" #> /dev/null 2>&1 
+			echo "rotate with quality $quali preserving timestamp: $file"
+            TIMESTAMP="$( ls -l --time-style='+%Y%m%d%H%M.%S' "${file}" | cut  --delimiter=' ' --fields=6 )"
+			mogrify -auto-orient -quality ${quali} "${file}"
+            touch -t ${TIMESTAMP} "${file}"
 		fi
 
                 #echo "MISSING! ${destDir}${fnNoExt}-me.${fnExt}"