hack/dockerfile/install/dockercli.installer

#!/bin/sh

DOCKERCLI_CHANNEL=${DOCKERCLI_CHANNEL:-stable}
DOCKERCLI_VERSION=${DOCKERCLI_VERSION:-17.06.2-ce}

install_dockercli() {
	echo "Install docker/cli version $DOCKERCLI_VERSION from $DOCKERCLI_CHANNEL"

	arch=$(uname -m)
	# No official release of these platforms
	if [ "$arch" != "x86_64" ] && [ "$arch" != "s390x" ] && [ "$arch" != "armhf" ]; then
		build_dockercli
		return
	fi

	url=https://download.docker.com/linux/static
	curl -Ls "${url}/${DOCKERCLI_CHANNEL}/${arch}/docker-${DOCKERCLI_VERSION}.tgz" | tar -xz docker/docker
	mkdir -p "${PREFIX}"
	mv docker/docker "${PREFIX}/"
	rmdir docker
}

build_dockercli() {
	git clone https://github.com/docker/docker-ce "$GOPATH/tmp/docker-ce"
	cd "$GOPATH/tmp/docker-ce"
	git checkout -q "v$DOCKERCLI_VERSION"
	mkdir -p "$GOPATH/src/github.com/docker"
	mv components/cli "$GOPATH/src/github.com/docker/cli"
	go build -buildmode=pie -o "${PREFIX}/docker" "github.com/docker/cli/cmd/docker"
}