openwrt: add Gluon upgrade script

openwrt/node-whisperer/Makefile

@@ -29,9 +29,10 @@ define Package/node-whisperer/conffiles
 endef
 
 define Package/node-whisperer/install
-	$(INSTALL_DIR) $(1)/usr/bin $(1)/etc/init.d $(1)/etc/config
+	$(INSTALL_DIR) $(1)/usr/bin $(1)/etc/init.d $(1)/etc/config $(1)/lib/gluon/upgrade
 	$(CP) $(PKG_BUILD_DIR)/src/node-whisperer $(1)/usr/bin
 	$(INSTALL_BIN) ./files/node-whisperer.init $(1)/etc/init.d/node-whisperer
+	$(INSTALL_BIN) ./files/node-whisperer.upgrade.lua $(1)/lib/gluon/upgrade/150-node-whisperer
 	$(CP) ./files/node-whisperer.uci $(1)/etc/config/node-whisperer
 endef
 

openwrt/node-whisperer/files/node-whisperer.upgrade.lua

@@ -0,0 +1,19 @@
+#!/usr/bin/lua5.1
+
+local site = require 'gluon.site'
+local uci = require('simple-uci').cursor()
+
+local sources = {}
+local disabled = false
+
+if not site.node_whisperer.enabled(false) then
+    disabled = true
+end
+
+for _, information in ipairs(site.node_whisperer.information({})) do
+    table.insert(sources, information)
+end
+
+uci:set('node-whisperer', 'settings', 'disabled', disabled)
+uci:set('node-whisperer', 'settings', 'information', sources)
+uci:commit('node-whisperer')