update hub upon build_deploy

Author: Ailing Zhang

Makefile

@@ -33,6 +33,10 @@ include-yarn-deps:
 	cp node_modules/bootstrap/dist/js/bootstrap.min.js $(VENDOR_DIR)
 	cp node_modules/anchor-js/anchor.min.js $(VENDOR_DIR)
 
+update-hub:
+	git submodule update --remote _hub
+	cp _hub/images/* assets/images
+
 build: install include-yarn-deps
 	$(JEKYLL) build --config _config.yml
 

scripts/deploy-site.sh

@@ -29,12 +29,8 @@ else
     git checkout --orphan master
 fi
 
-# Update submodule pytorch/hub to the latest master branch
-# Then copy over images to assets/images
-git submodule update --remote _hub
-cp _hub/images/* assets/images
-
 cd "../"
+make update-hub
 make build_deploy
 cd master-branch