node: Reduce node-npm package size

Reduce package size by about 1MB.

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

lang/node/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=node
 PKG_VERSION:=v14.17.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://nodejs.org/dist/$(PKG_VERSION)
@@ -141,8 +141,13 @@ define Package/node/install
 endef
 
 define Package/node-npm/install
-	$(INSTALL_DIR) $(1)/usr/lib/node_modules
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/node_modules/* $(1)/usr/lib/node_modules/
+	$(INSTALL_DIR) $(1)/usr/lib/node_modules/npm
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/node_modules/npm/{package.json,LICENSE} \
+		$(1)/usr/lib/node_modules/npm/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/node_modules/npm/{AUTHORS,*.md} \
+		$(1)/usr/lib/node_modules/npm/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/node_modules/npm/{node_modules,bin,lib} \
+		$(1)/usr/lib/node_modules/npm/
 	$(INSTALL_DIR) $(1)/usr/bin
 	$(LN) ../lib/node_modules/npm/bin/npm-cli.js $(1)/usr/bin/npm
 	$(LN) ../lib/node_modules/npm/bin/npx-cli.js $(1)/usr/bin/npx