--- rpms/nextcloud/contribs9/nextcloud.spec	2019/01/08 02:49:07	1.8
+++ rpms/nextcloud/contribs9/nextcloud.spec	2019/01/08 03:56:26	1.9
@@ -74,20 +74,62 @@ then
     installedver=`php  -r 'require("/usr/share/nextcloud/version.php"); print "$OC_VersionString";'`;
     majvers=`echo %{version} | cut -d. -f1`
     majcurvers=`echo $installedver | cut -d. -f1`
-    echo "and the version is $installedver"
     # we should fail with exit 1 if
 	# installed version  > rpm version
-	if ( verlte $installedver %{version} )
+	if ( verlte %{version} $installedver )
 		then
-		echo "Installed version has been upgraded and is most recent than this rpm"
+		echo "Installed version has $installedver been upgraded and is most recent than this rpm %{version} version"
+#		echo "backup current install to /usr/share/nextcloud_back"
+#		mkdir /usr/share/nextcloud_back
+#		rsync -ar /usr/share/nextcloud/ /usr/share/nextcloud_back
 		exit 1
-	elif [  $(($majvers-1)) > $majcurvers  ] 
+	elif [ $(($majvers-1)) -gt $majcurvers ] 
 		then # installed version < rpm version -1
-		echo "can not upgrade from $installedver to  %{version}, please do a manual update with intermediate version"
+		echo "can not upgrade from $installedver to %{version}, please do a manual or web update with intermediate version"
+#		echo "backup current install to /usr/share/nextcloud_back"
+#                mkdir /usr/share/nextcloud_back
+#                rsync -ar /usr/share/nextcloud/ /usr/share/nextcloud_back
     		exit 1
 	fi
 fi
 
+%postun
+# true if $1 is greater than or equal $2
+verlte() {
+    [  "$1" = "`echo -e "$1\n$2" | sort -V | head -n1`" ]
+}
+
+verlt() {
+    [ "$1" = "$2" ] && return 1 || verlte $1 $2
+}
+
+if [ $1 == 1 ]]; then
+# if there is already an installed version
+if [ -f /usr/share/nextcloud/version.php ]
+then
+#    echo "version.php found, already installed"
+    # get version number
+    installedver=`php  -r 'require("/usr/share/nextcloud/version.php"); print "$OC_VersionString";'`;
+    majvers=`echo %{version} | cut -d. -f1`
+    majcurvers=`echo $installedver | cut -d. -f1`
+#    echo "and the version is $installedver"
+    # we should fail with exit 1 if
+        # installed version  > rpm version
+        if ( verlte %{version} $installedver )
+                then
+#                echo "reverting content"
+#                rsync -ar /usr/share/nextcloud_back/ /usr/share/nextcloud_back
+#		rm -rf /usr/share/nextcloud_back
+                exit 0
+        elif [ $(($majvers-1)) -gt $majcurvers ]
+                then # installed version < rpm version -1
+#		echo "reverting content"
+#                rsync -ar /usr/share/nextcloud_back/ /usr/share/nextcloud_back
+#                rm -rf /usr/share/nextcloud_back
+                exit 0
+        fi
+fi
+fi
 
 %install
 rm -rf %{buildroot}