compress option logic updated

• no compression is set by default
• get_client_config is able to process 'comp_lzo' uci option
• get_client_config generates config with '' or 'compress '

proposed patch for turris-os-packages

diff --git a/cznic/foris/foris-controller-openvpn-module/Makefile b/cznic/foris/foris-controller-openvpn-module/Makefile
index 8283ebdee..48b2eb5af 100644
--- a/cznic/foris/foris-controller-openvpn-module/Makefile
+++ b/cznic/foris/foris-controller-openvpn-module/Makefile
@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=foris-controller-openvpn-module
-PKG_VERSION:=0.5.1
+PKG_VERSION:=0.6
 PKG_RELEASE:=1
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)
 PKG_SOURCE_PROTO:=git
@@ -40,6 +40,22 @@ define Build/Compile
        $(call Build/Compile/Py3Mod,,install --prefix=/usr --root=$(PKG_INSTALL_DIR))
 endef
 
+
+define Package/${PKG_NAME}/postinst
+#!/bin/sh
+set -x
+[ -n "$$IPKG_INSTROOT" ] || {
+       if uci -q get openvpn.server_turris.comp_lzo > /dev/null ; then
+               uci del openvpn.server_turris.comp_lzo
+               if uci -q get openvpn.server_turris.compress > /dev/null ; then
+                       :
+               else
+                       uci set openvpn.server_turris.compress=lzo
+               fi
+       fi
+}
+endef
+
 #
 # Package install definition
 $(eval $(call ForisControllerModule,$(PKG_NAME)))

Closes #5 (closed) and #6 (closed)