#!/usr/bin/env nix-shell
#!nix-shell -p ruby -i ruby

# Boots a given `result` symlink on a remote system.
# This is mainly used to speed-up development where
# an aarch64 host is used to build the system, but the
# target device is plugged into another system

require "shellwords"

ROOT = File.join(__dir__, "..")

# This assumes `result` is boot.img.
STORE_PATH = File.readlink("result")

unless ARGV.count == 1 then
	puts "Usage: bin/remote-boot <hostname>"
	exit 1
end

HOST = ARGV.shift

# Copy the result to the target host.
system("nix", "copy", STORE_PATH, "--to", "ssh://#{HOST}")

# This assumes the host system has adb and fastboot in PATH.
# This assumption is safe~ish since only using nix store paths
# wouldn't mean udev rules would be applied, and that adb and
# fastboot would work.
cmd = "
adb reboot bootloader
fastboot boot #{STORE_PATH}
"

# Spooky!
# This uses the previously defined commands.
# shelljoin makes this safe enough.
system("ssh", HOST, ["bash", "-l", "-c", cmd].shelljoin)

exit $?.exitstatus

# vim: ft=ruby