openwisp-monitoring: allow not depending on rpcd-mod-iwinfo

Add option to exclude rpcd-mod-iwinfo from dependency.

Signed-off-by: Gagan Deep <[email protected]>

admin/openwisp-monitoring/Config.in

@@ -0,0 +1,9 @@
+menu "netjson-monitoring Configuration"
+
+config NETJSON_MONITORING_IWINFO
+	bool "Enable rpcd-mod-iwinfo"
+	default y
+	help
+	  Whether to include the rpcd-mod-iwinfo dependency (enabled by default).
+
+endmenu

admin/openwisp-monitoring/Makefile

@@ -6,7 +6,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=openwisp-monitoring
 PKG_VERSION:=0.2.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_MAINTAINER:=Federico Capoano <[email protected]>
 PKG_LICENSE:=GPL-3.0-or-later
@@ -34,10 +34,15 @@ define Package/netjson-monitoring
   CATEGORY:=Administration
   SECTION:=admin
   SUBMENU:=openwisp
-  DEPENDS:=+libubus-lua +lua-cjson +rpcd +rpcd-mod-iwinfo
+  DEPENDS:=+libubus-lua +lua-cjson +rpcd
+  DEPENDS+=+NETJSON_MONITORING_IWINFO:rpcd-mod-iwinfo
   URL:=http://openwisp.org
 endef
 
+define Package/netjson-monitoring/config
+  source "$(SOURCE)/Config.in"
+endef
+
 define Build/Compile
 endef
 
@@ -88,6 +93,11 @@ define Package/netjson-monitoring/install
 		$(PKG_BUILD_DIR)/openwisp-monitoring/files/lib/openwisp-monitoring/wifi.lua \
 		$(1)/usr/lib/lua/openwisp-monitoring/wifi.lua
 
+# Iwinfo is enabled by default unless specified otherwise
+ifeq ($(CONFIG_NETJSON_MONITORING_IWINFO), y)
+	$(CP) $(PKG_BUILD_DIR)/openwisp-monitoring/files/lib/openwisp-monitoring/iwinfo.lua $(1)/usr/lib/lua/openwisp-monitoring/iwinfo.lua
+endif
+
 	$(CP) $(PKG_BUILD_DIR)/VERSION $(1)/usr/lib/openwisp-monitoring/
 
 endef