Add Makefile

Makefile

@@ -0,0 +1,39 @@
+SOURCEDIR=.
+SOURCES := $(shell find $(SOURCEDIR) -name '*.go')
+
+LIBRARY = liquid
+PACKAGE = github.com/osteele/liquid
+COMMIT_HASH = `git rev-parse --short HEAD 2>/dev/null`
+BUILD_TIME = `date +%FT%T%z`
+
+VERSION=0.0.0
+
+LDFLAGS=-ldflags "-X ${PACKAGE}.Version=${VERSION} -X ${PACKAGE}.BuildTime=${BUILD_TIME}"
+
+.DEFAULT_GOAL: $(LIBRARY)
+.PHONY: build clean dependencies setup install lint test help
+
+$(LIBRARY): $(SOURCES)
+	go build ${LDFLAGS} -o ${LIBRARY} ${PACKAGE}/cmd/liquid
+
+build: $(LIBRARY) ## compile the package
+
+clean: ## remove binary files
+	rm -fI ${LIBRARY}
+
+setup: ## install dependencies and development tools
+	go get -t ./...
+	go get github.com/alecthomas/gometalinter
+	go get golang.org/x/tools/cmd/stringer
+	go install golang.org/x/tools/cmd/goyacc
+	gometalinter --install
+
+lint: ## lint the package
+	gometalinter ./... --exclude expressions/scanner.go --exclude expressions/scanner.go --exclude '.*_string.go'
+
+test: ## test the package
+	go test ./...
+
+# Source: https://marmelab.com/blog/2016/02/29/auto-documented-makefile.html
+help:
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'

README.md

@@ -41,8 +41,7 @@
 ### Setup
 
 ```bash
-go get golang.org/x/tools/cmd/stringer
+make setup
-go install golang.org/x/tools/cmd/goyacc
 ```
 
 Install Ragel. On macOS: `brew install ragel`.