Makefile

# Copyright 2018 Kirill Kuznetsov
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

GO           := go
FIRST_GOPATH := $(firstword $(subst :, ,$(shell $(GO) env GOPATH)))
STATICCHECK  := $(FIRST_GOPATH)/bin/staticcheck
pkgs         = $(shell $(GO) list ./... | grep -v /vendor/)

PREFIX                  ?= $(shell pwd)
BIN_DIR                 ?= $(shell pwd)
DOCKER_IMAGE_NAME       ?= slack-on-call-badge
DOCKER_IMAGE_TAG        ?= $(subst /,-,$(shell git rev-parse --abbrev-ref HEAD))


all: format vet staticcheck build test

style:
	@echo ">> checking code style"
	@! gofmt -d $(shell find . -path ./vendor -prune -o -name '*.go' -print) | grep '^'

test:
	@echo ">> running tests"
	@$(GO) test -short $(pkgs)

format:
	@echo ">> formatting code"
	@$(GO) fmt $(pkgs)

vet:
	@echo ">> vetting code"
	@$(GO) vet $(pkgs)

staticcheck: $(STATICCHECK)
	@echo ">> running staticcheck"
	@$(STATICCHECK) $(pkgs)

build: clean
	@echo ">> building binary for current architecture and OS"
	@$(GO) build -o slack-on-call-badge

docker:
	@echo ">> building docker image"
	@docker build -t "$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" .

$(FIRST_GOPATH)/bin/staticcheck:
	@GOOS= GOARCH= $(GO) get -u honnef.co/go/tools/cmd/staticcheck

clean:
	@echo ">> cleaning up previous builds"
	@rm -f slack-on-call-badge
	@rm -f slack-on-call-badge.linux-amd64

.PHONY: all style format build test vet docker staticcheck $(FIRST_GOPATH)/bin/staticcheck