moby--moby/hack/make/binary-daemon

#!/usr/bin/env bash
set -e

copy_binaries() {
	local dir="$1"
	local hash="$2"
	# Add nested executables to bundle dir so we have complete set of
	# them available, but only if the native OS/ARCH is the same as the
	# OS/ARCH of the build target
	if [[ "$(go env GOOS)/$(go env GOARCH)" != "$(go env GOHOSTOS)/$(go env GOHOSTARCH)" ]]; then
		return
	fi
	if [[ ! -x /usr/local/bin/runc ]]; then
		return
	fi
	echo "Copying nested executables into $dir"
	for file in containerd containerd-shim ctr runc docker-init docker-proxy; do
		cp -f `which "$file"` "$dir/"
		if [[ "$hash" == "hash" ]]; then
			hash_files "$dir/$file"
		fi
	done
}

[[ -z "$KEEPDEST" ]] && rm -rf "$DEST"
source "${MAKEDIR}/.binary"
copy_binaries "$DEST" 'hash'