Make the Makefile functional

Makefile

@@ -1,15 +1,27 @@
 APPLICATION_NAME ?= dndmusicbot
 CURRENT_UID := $(shell id -u)
+BIN := src/node_modules/.bin
 
 default: build
 
-image: Dockerfile
+PHONY: js image build
-	docker build -t dndmusicbot-js-build .
-	touch .jsimage
 
-web: src/script.js
+js: src/public/script.js
-	docker run --user $(CURRENT_UID) -v $(CURDIR)/src:/app dndmusicbot-js-build install
-	docker run --user $(CURRENT_UID) -v $(CURDIR)/src:/app dndmusicbot-js-build build
 
-build: *.go
+image: .jsimage
-	go build
+
+.jsimage: Dockerfile
+	@docker build -t dndmusicbot-js-build .
+	@touch .jsimage
+
+src/yarn.lock: src/node_modules src/package.json
+	@docker run --rm --user $(CURRENT_UID) -v $(CURDIR)/src:/app dndmusicbot-js-build install --production=false --check-files
+	@touch -mr $(shell ls -Atd $? | head -1) $@
+
+src/public/script.js: src/script.js src/yarn.lock
+	@docker run --user $(CURRENT_UID) -v $(CURDIR)/src:/app dndmusicbot-js-build build
+
+$(APPLICATION_NAME): *.go ffmpeg/*.go speaker/*.go
+	@go build
+
+build: image js $(APPLICATION_NAME)