Fix for Makefile bug #30

Makefile

@@ -25,13 +25,19 @@ test:
 	@go test -v ./...
 
 BIN_DIR := $(GOPATH)/bin
-GORICE := $(BIN_DIR)/github.com/GeertJohan/go.rice
+GORICE := $(BIN_DIR)/rice
 GOLANGCILINT := $(BIN_DIR)/golangci-lint
 GITCHGLOG := $(BIN_DIR)/git-chglog
+WEB_BUILD_DIR := ./web/build/manifest.json
 
 $(GORICE):
 	@GO111MODULE=off go get -u github.com/GeertJohan/go.rice/rice
 
+$(WEB_BUILD_DIR):
+	@echo "First install Yarn and create a build of the web UI found under ./web"
+	@echo "Command: cd web && yarn build"
+	@exit 1
+
 $(GITCHGLOG):
 	@GO111MODULE=off go get -u github.com/git-chglog/git-chglog/cmd/git-chglog
 
@@ -49,7 +55,7 @@ LDFLAGS := -s -w
 PLATFORMS := windows linux darwin
 os = $(word 1, $@)
 
-$(PLATFORMS): lint test gen 
+$(PLATFORMS): lint test 
 	@mkdir -p release
 	@GOOS=$(os) GOARCH=amd64 go build $(BUILD_FLAGS) -o release/$(BINARY)-$(BUILD_VERSION)-$(os)-amd64
 
@@ -59,10 +65,10 @@ all: lint test $(BINARY)
 
 build: $(BINARY)
 
-gen: $(GORICE)
+gen: $(GORICE) $(WEB_BUILD_DIR)
 	@go generate ./...
 
-$(BINARY): clean gen
+$(BINARY): clean
 	@go build $(BUILD_FLAGS) -o $(BINARY)
 
 clean:
@@ -71,7 +77,7 @@ clean:
 run: clean
 	@go run $(BUILD_FLAGS) main.go $(ARGS)
 
-install: gen
+install:
 	@echo $(GOPATH)
 	@echo "Commit Hash: `git rev-parse HEAD`"
 	@echo "Old Hash: `shasum $(GOPATH)/bin/$(BINARY) 2>/dev/null | cut -c -32`"