Add Makefile (#5)

Replaces ci.sh, provides add'l static analysis (which isn't yet enabled in CI since the code doesn't yet pass them all)

.travis.yml

@@ -10,4 +10,5 @@ matrix:
     - go: tip
 
 script:
-  - ./ci.sh
+  # TODO: change to "make" when golint, errcheck, staticcheck pass
+  - make deps checkgofmt vet unused test

Makefile

@@ -0,0 +1,64 @@
+SRCS := $(shell find . -name '*.go')
+PKGS := $(shell go list ./...)
+
+.PHONY: all
+all: deps lint test
+
+.PHONY: deps
+deps:
+	go get -d -v -t $(PKGS)
+
+.PHONY: updatedeps
+updatedeps:
+	go get -d -v -t -u -f $(PKGS)
+
+.PHONY: install
+install:
+	go install $(PKGS)
+
+.PHONY: golint
+golint:
+	@go get github.com/golang/lint/golint
+	for file in $(SRCS); do \
+		golint $${file}; \
+		if [ -n "$$(golint $${file})" ]; then \
+			exit 1; \
+		fi; \
+	done
+
+.PHONY: checkgofmt
+checkgofmt:
+	gofmt -s -l $(SRCS)
+	if [ -n "$$(gofmt -s -l $(SRCS))" ]; then \
+		exit 1; \
+	fi
+
+.PHONY: vet
+vet:
+	go vet $(PKGS)
+
+.PHONY:
+errcheck:
+	@go get github.com/kisielk/errcheck
+	errcheck $(PKGS)
+
+.PHONY: staticcheck
+staticcheck:
+	@go get honnef.co/go/tools/cmd/staticcheck
+	staticcheck $(PKGS)
+
+.PHONY: unused
+unused:
+	@go get honnef.co/go/tools/cmd/unused
+	unused $(PKGS)
+
+.PHONY: lint
+lint: golint checkgofmt vet errcheck staticcheck unused
+
+.PHONY: test
+test:
+	go test -race $(PKGS)
+
+.PHONY: clean
+clean:
+	go clean -i $(PKGS)

ci.sh

@@ -1,11 +0,0 @@
-#!/usr/bin/env bash
-set -e
-
-fmtdiff="$(gofmt -s -l ./)"
-if [[ -n "$fmtdiff" ]]; then
-  gofmt -s -l ./ >&2
-  echo "Run gofmt on the above files!" >&2
-  exit 1
-fi
-
-go test -v -race ./...