Move to gox/ghr/ghcp to fix version of k8s modules

Makefile

@@ -0,0 +1,34 @@
+TARGET := kubelogin
+OSARCH := darwin/amd64 linux/amd64 windows/amd64
+CIRCLE_TAG ?= snapshot
+
+.PHONY: check release_bin release_homebrew release clean
+
+all: dist/$(TARGET)
+
+check:
+	golint
+	go vet
+	$(MAKE) -C cli_test/authserver/testdata
+	go test -v ./...
+
+dist/$(TARGET): $(wildcard *.go)
+	go build -o $@ -ldflags '-X main.version=$(CIRCLE_TAG)'
+
+dist/bin:
+	gox --osarch '$(OSARCH)' -output 'dist/bin/$(TARGET)_{{.OS}}_{{.Arch}}'
+	cd dist/bin && shasum -a 256 -b * > $(TARGET)_checksums.txt
+
+release_bin: dist/bin
+	ghr -u "$(CIRCLE_PROJECT_USERNAME)" -r "$(CIRCLE_PROJECT_REPONAME)" -b "$$(ghch -F markdown --latest)" "$(CIRCLE_TAG)" dist/bin
+
+dist/kubelogin.rb: dist/bin
+	./homebrew.sh dist/bin/$(TARGET)_darwin_amd64 > dist/kubelogin.rb
+
+release_homebrew: dist/kubelogin.rb
+	ghcp -u "$(CIRCLE_PROJECT_USERNAME)" -r "homebrew-$(CIRCLE_PROJECT_REPONAME)" -m "$(CIRCLE_TAG)" -C dist/ kubelogin.rb
+
+release: release_bin release_homebrew
+
+clean:
+	-rm -r dist/