moby/hack/dockerfile/install/dockercli.installer

#!/bin/sh

DOCKERCLI_CHANNEL=${DOCKERCLI_CHANNEL:-edge}
DOCKERCLI_VERSION=${DOCKERCLI_VERSION:-17.06.0-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" ]]; 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
}