Bug 25693: Set correct permissions on logdir after an upgrade

Since bug 25172 we are failing loudly if the permissions are not correct
and that the logger cannot init successfully.

We must set the correct permission on upgrading.
koha-create deals with new installs

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

debian/koha-common.postinst

@@ -189,6 +189,16 @@ EOF
     fi
 done
 
+for site in $(koha-list); do
+    kohaconfig="/etc/koha/sites/$site/koha-conf.xml"
+    logdir="$( xmlstarlet sel -t -v 'yazgfs/config/logdir' $kohaconfig )"
+    if [ "$logdir" != "" ] && [ "$logdir" != "0" ]; then
+        chown -R $site-koha:$site-koha $logdir
+    else
+        chown -R $site-koha:$site-koha /var/log/koha/$site
+    fi
+done
+
 # Bug 14106 - fix the modulePath of existing koha instances so that it'll
 # continue to work. This will only patch the files if the exact original string
 # that we're fixing them from is there, so we just run it every time. Maybe