Modularize Makefile into client and server Makefiles

Part of the reason that the Makefile in the root directory is a bit
complicated is that it tries to handle tasks that can be handled
separately in the client and server modules.

This commit pushes some of the make logic specific to each module into
their own makefiles and calls out to those makefiles from that in the
project root.

Makefile

@@ -5,12 +5,30 @@ CLEANFILES :=  $(BUILDDIR)/ client/build build dist cellxgene.egg-info
 
 PART ?= patch
 
+
+# CLEANING
+.PHONY: clean
+clean: clean-lite clean-server clean-client
+
+# cleaning the client's node_modules is the longest one, so we avoid that if possible
+.PHONY: clean-lite
+clean-lite:
+	rm -rf $(CLEANFILES)
+
+clean-%:
+	cd $(*) && $(MAKE) clean
+
+
 # BUILDING PACKAGE
 
 .PHONY: build
 build: clean build-server
 	@echo "done"
 
+.PHONY: build-client
+build-client:
+	cd client && $(MAKE) install build
+
 .PHONY: build-server
 build-server: build-client
 	mkdir -p $(SERVERBUILD)
@@ -24,11 +42,6 @@ build-server: build-client
 	cp $(CLIENTBUILD)/service-worker.js $(SERVERBUILD)/app/web/static/js/
 	cp MANIFEST.in README.md setup.cfg setup.py $(BUILDDIR)
 
-.PHONY: build-client
-build-client:
-	npm install --prefix client/ client
-	npm run  --prefix client build
-
 # If you are actively developing in the server folder use this, dirties the source tree
 .PHONY: build-for-server-dev
 build-for-server-dev: clean-server build-client
@@ -40,19 +53,8 @@ build-for-server-dev: clean-server build-client
 	cp client/build/favicon.png server/app/web/static/img
 	cp client/build/service-worker.js server/app/web/static/js/
 
-.PHONY: clean
-clean: clean-lite clean-server
-	rm -rf client/node_modules
 
-# cleaning node_modules is the longest one, so we avoid that if possible
-.PHONY: clean-lite
-clean-lite:
-	rm -rf $(CLEANFILES)
 
-.PHONY: clean-server
-clean-server:
-	rm -f server/app/web/templates/index.html
-	rm -rf server/app/web/static
 
 # CREATING DISTRIBUTION RELEASE
 
@@ -61,6 +63,7 @@ pydist: build
 	cd $(BUILDDIR); python setup.py sdist -d ../dist
 	@echo "done"
 
+
 # RELEASE HELPERS
 
 # create new version to commit to master
@@ -91,6 +94,7 @@ release-directly-to-prod: dev-env pydist twine-prod
 
 .PHONY: dev-env
 dev-env:
+	cd client && make install
 	pip install -r server/requirements-dev.txt
 
 .PHONY: gui-env
@@ -113,7 +117,7 @@ twine-prod:
 # quicker than re-building client
 .PHONY: gen-package-lock
 gen-package-lock:
-	npm install --prefix client/ client
+	cd client && $(MAKE) install
 
 
 # INSTALL

client/Makefile

@@ -0,0 +1,12 @@
+.PHONY: install
+install:
+	npm install client
+
+.PHONY: build
+build: install
+	npm run build
+
+.PHONY: clean
+clean:
+	rm -rf node_modules
+

server/Makefile

@@ -0,0 +1,4 @@
+.PHONY: clean
+clean:
+	rm -f app/web/templates/index.html
+	rm -rf app/web/static