Module: Ruflet::CLI::RunCommand

Included in:
Ruflet::CLI, UpdateCommand
Defined in:
lib/ruflet/cli/run_command.rb

Constant Summary collapse

CLIENT_CHANNEL_MANIFEST = 
"ruflet_client-manifest.json"
DEFAULT_CLIENT_UPDATE_INTERVAL = 
6 * 60 * 60

Instance Method Summary collapse

Instance Method Details

#command_run(args) ⇒ Object 



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# File 'lib/ruflet/cli/run_command.rb', line 22

def command_run(args)
  options = { target: "mobile", requested_port: 8550, reload: true }
  parser = OptionParser.new do |o|
    o.on("--web") { options[:target] = "web" }
    o.on("--desktop") { options[:target] = "desktop" }
    o.on("--port PORT", Integer) { |v| options[:requested_port] = v }
    o.on("--no-reload") { options[:reload] = false }
  end
  parser.parse!(args)

  script_token = args.shift || "main"
  script_path = resolve_script(script_token)
  unless script_path
    warn "Script not found: #{script_token}"
    warn "Expected: ./#{script_token}.rb, ./#{script_token}, or explicit file path."
    return 1
  end

  selected_port = resolve_backend_port(options[:target], requested_port: options[:requested_port])
  return 1 unless selected_port
  env = {
    "RUFLET_TARGET" => options[:target],
    "RUFLET_SUPPRESS_SERVER_BANNER" => "1",
    "RUFLET_PORT" => selected_port.to_s
  }
  apply_local_ruflet_dev_overrides(env)
  assets_dir = File.join(File.dirname(script_path), "assets")
  env["RUFLET_ASSETS_DIR"] = assets_dir if File.directory?(assets_dir)

  # The backend serves the web client itself so both share one origin.
  if options[:target] == "web"
    web_client_dir = detect_web_client_dir
    if web_client_dir
      env["RUFLET_WEB_CLIENT_DIR"] = web_client_dir
    else
      warn "Web client build not found and prebuilt download failed."
      warn "Build one with `ruflet build web`, or set RUFLET_CLIENT_DIR."
      return 1
    end
  end

  print_run_banner(target: options[:target], requested_port: options[:requested_port], port: selected_port)
  print_mobile_qr_hint(port: selected_port) if options[:target] == "mobile"
  print_hot_reload_banner if options[:reload]

  gemfile_path = find_nearest_gemfile(Dir.pwd)
  cmd = build_runtime_command(script_path, gemfile_path: gemfile_path, env: env, reload: options[:reload])
  return 1 unless cmd

  run_state = { child_pid: Process.spawn(env, *cmd, pgroup: true), restart: false }
  reload_input_thread = options[:reload] ? start_reload_input_thread(run_state) : nil
  launched_client_pids = launch_target_client(options[:target], selected_port)
  forward_signal = lambda do |signal|
    begin
      Process.kill(signal, -run_state[:child_pid])
    rescue Errno::ESRCH
      nil
    end
  end

  previous_int = Signal.trap("INT") { forward_signal.call("INT") }
  previous_term = Signal.trap("TERM") { forward_signal.call("TERM") }

  loop do
    _pid, status = Process.wait2(run_state[:child_pid])
    return status.success? ? 0 : (status.exitstatus || 1) unless run_state[:restart]

    # Full restart requested ("R"): respawn the backend; connected
    # clients reconnect and re-register on their own (Flet-style).
    run_state[:restart] = false
    puts "Restarting app..."
    started = Process.clock_gettime(Process::CLOCK_MONOTONIC)
    run_state[:child_pid] = Process.spawn(env, *cmd, pgroup: true)
    wait_for_server_boot(selected_port)
    elapsed_ms = ((Process.clock_gettime(Process::CLOCK_MONOTONIC) - started) * 1000).round
    puts "Restarted in #{elapsed_ms}ms"
  end
ensure
  reload_input_thread&.kill if defined?(reload_input_thread)
  Signal.trap("INT", previous_int) if defined?(previous_int) && previous_int
  Signal.trap("TERM", previous_term) if defined?(previous_term) && previous_term

  if defined?(run_state) && run_state && run_state[:child_pid]
    begin
      Process.kill("TERM", -run_state[:child_pid])
    rescue Errno::ESRCH
      nil
    end
  end

  Array(defined?(launched_client_pids) ? launched_client_pids : nil).compact.each do |pid|
    begin
      Process.kill("TERM", -pid)
    rescue Errno::ESRCH
      begin
        Process.kill("TERM", pid)
      rescue Errno::ESRCH
        nil
      end
    end
  end

end