install beekeeper using make (#1560)

Makefile

@@ -3,6 +3,7 @@ GOLANGCI_LINT ?= $$($(GO) env GOPATH)/bin/golangci-lint
 GOLANGCI_LINT_VERSION ?= v1.30.0
 GOGOPROTOBUF ?= protoc-gen-gogofaster
 GOGOPROTOBUF_VERSION ?= v1.3.1
+BEEKEEPER ?= $$($(GO) env GOPATH)/bin/beekeeper
 
 COMMIT ?= "$(shell git describe --long --dirty --always --match "" || true)"
 LDFLAGS ?= -s -w -X github.com/ethersphere/bee.commit="$(COMMIT)"
@@ -25,6 +26,10 @@ binaries: binary
 dist:
 	mkdir $@
 
+.PHONY: beekeeper
+beekeeper:
+	test -f $(BEEKEEPER) || curl -sSfL https://raw.githubusercontent.com/ethersphere/beekeeper/master/install.sh | BEEKEEPER_INSTALL_DIR=$$($(GO) env GOPATH)/bin USE_SUDO=false bash
+
 .PHONY: lint
 lint: linter
 	$(GOLANGCI_LINT) run