Sinatra Stubs and Rake Tasks

Rakefile

require 'rspec/core/rake_task'

namespace :stubs do
  namespace :schedule do
    pid_file_path = "lib/stubs/schedule.pid"

    desc "Start the schedule stub"
    task :start do
      `rackup -D lib/stubs/schedule.ru -P #{pid_file_path} -p 2000`
    end

    desc "Stop the schedule stub"
    task :stop do
      raise "Stub not running" unless File.exist? pid_file_path
      pid = File.open(pid_file_path).read
      `kill -9 #{pid}`
      File.delete pid_file_path
    end

    desc "Restart the schedule stub"
    task :restart do
      Rake::Task["stubs:schedule:stop"].invoke
      Rake::Task["stubs:schedule:start"].invoke
    end
  end
end

schedule.rb

require 'sinatra'
require 'sinatra/base'
require 'json'

class ScheduleStub < Sinatra::Base
  before /.*/ do
    content_type :json
  end

  get '/stuff_in_schedule' do
    { :scheduled_things => ["001", "002", "003"]}.to_json
  end
end

schedule.ru

require './lib/stubs/schedule.rb'

run ScheduleStub