node: Move NPM into a separated pacakge

In order to reduce flash requirements and also to disallow running NPM on the target
move NPM out of the default NodeJS package.
In order to allow adding NPM via opkg install, move it to a separated
directory

Signed-off-by: Ygal Blum <ygal.blum@gmail.com>

lang/node/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=node
 PKG_VERSION:=v4.4.5
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=node-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=http://nodejs.org/dist/${PKG_VERSION}
@@ -44,6 +44,19 @@ define Package/node/description
    package ecosystem, npm, is the largest ecosystem of open source libraries in the world.
 endef
 
+define Package/node-npm
+  SECTION:=lang
+  CATEGORY:=Languages
+  SUBMENU:=Node.js
+  TITLE:=NPM stands for Node Package Manager
+  URL:=http://npmjs.com/
+  DEPENDS:=+node
+endef
+
+define Package/node-npm/description
+	NPM is the package manager for NodeJS
+endef
+
 CPU:=$(subst aarch64,arm64,$(subst x86_64,x64,$(subst i386,ia32,$(ARCH))))
 
 MAKE_VARS += \
@@ -82,8 +95,13 @@ define Build/InstallDev
 endef
 
 define Package/node/install
+	mkdir -p $(1)/usr/bin
+	$(CP) $(PKG_INSTALL_DIR)/usr/bin/node $(1)/usr/bin/
+endef
+
+define Package/node-npm/install
 	mkdir -p $(1)/usr/bin $(1)/usr/lib/node_modules/npm/{bin,lib,node_modules}
-	$(CP) $(PKG_INSTALL_DIR)/usr/bin/{node,npm} $(1)/usr/bin/
+	$(CP) $(PKG_INSTALL_DIR)/usr/bin/npm $(1)/usr/bin/
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/node_modules/npm/{package.json,LICENSE,cli.js} $(1)/usr/lib/node_modules/npm
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/node_modules/npm/bin/npm-cli.js $(1)/usr/lib/node_modules/npm/bin
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/node_modules/npm/lib/* $(1)/usr/lib/node_modules/npm/lib/
@@ -92,3 +110,4 @@ endef
 
 $(eval $(call HostBuild))
 $(eval $(call BuildPackage,node))
+$(eval $(call BuildPackage,node-npm))