Add a simple Makefile

Makefile

@@ -0,0 +1,41 @@
+# Build parameters
+GOCMD=go
+GOBUILD=$(GOCMD) build
+BINARY=docsim
+
+# Install parameters
+PREFIX=/usr/local
+INSTDIR=$(DESTDIR)$(PREFIX)/bin
+MANDIR=$(DESTDIR)$(PREFIX)/share/man/man1
+MANPAGE=$(BINARY).1
+
+.PHONY: build
+build: $(BINARY)
+
+$(BINARY): $(shell find . -iname *.go)
+	$(GOBUILD) -o $(BINARY) -v ./...
+
+.PHONY: install
+install: $(BINARY)
+	mkdir -p $(INSTDIR) $(MANDIR)
+	cp $(BINARY) $(INSTDIR)
+	install -m 644 man/$(MANPAGE) $(MANDIR)/$(MANPAGE)
+
+.PHONY: uninstall
+uninstall:
+	rm -f $(INSTDIR)/$(BINARY)
+	rm -f $(MANDIR)/$(MANPAGE)
+
+.PHONY: deps
+deps:
+	go mod download
+
+.PHONY: test
+test:
+	go test -race -v ./...
+	go vet ./...
+
+.PHONY: clean
+clean:
+	rm -f $(BINARY)
+	go clean