packaging: add postinst for debian

debian/postinst

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -e
+
+# Update the the dbus user to logname
+dbus_conf = /usr/share/dbus-1/system.d/com.yuezk.qt.GPService.conf
+if [ -f $dbus_conf ]; then
+    sed -i "/LOGNAME/,+1s/user=\".*\"/user=\"$(logname)\"/" $dbus_conf
+fi
+
+#DEBHELPER#