Makefile.deps

BIN ?= image/bin
TARGET_ARCH ?= amd64

DUMB_INIT_VERSION ?= 1.1.3
GOSU_VERSION ?= 1.10

# These are available in apt for yakkety+
CURL_${BIN}/gosu ?= https://github.com/tianon/gosu/releases/download/${GOSU_VERSION}/gosu-${TARGET_ARCH}
CURL_${BIN}/dumb-init ?= https://github.com/Yelp/dumb-init/releases/download/v${DUMB_INIT_VERSION}/dumb-init_${DUMB_INIT_VERSION}_${TARGET_ARCH}

CURL_DEPS = ${BIN}/gosu ${BIN}/dumb-init
DEPS += ${CURL_DEPS}

REPO_${BIN}/dockerize ?= github.com/jwilder/$(notdir $@)
REPO_${BIN}/prefixout ?= github.com/akatrevorjay/$(notdir $@)
REPO_${BIN}/envsubst ?= github.com/a8m/$(notdir $@)/cmd/$(notdir $@)

GOLANG_DEPS = ${BIN}/dockerize ${BIN}/prefixout ${BIN}/envsubst
DEPS += ${GOLANG_DEPS}

##
## golang
##

GOLANG_IMAGE = golang:1.10
GOLANG_BUILD_CMD ?= \
	docker create -v /go/bin --name golang-build-out-$(notdir $@) busybox:latest /bin/true \
	&& ( \
	  docker run --rm --volumes-from golang-build-out-$(notdir $@) ${GOLANG_IMAGE} go get -u -v $(REPO_$@) \
	  && docker cp golang-build-out-$(notdir $@):/go/bin/$(notdir $@) $(abspath ${BIN}) \
	); \
	docker rm golang-build-out-$(notdir $@)

${GOLANG_DEPS}:
	${GOLANG_BUILD_CMD}
	test -e "$@"

##
## curl
##

${CURL_DEPS}:
	curl -sSLfo "$@.tmp" "$(CURL_$@)"
	chmod +x "$@.tmp"
	mv "$@.tmp" "$@"