autotest ruby script runner for rails (script/autotest), with matching autotest.rake file (lib/tasks/autotest.rake)

autotest.rake

$here = File.expand_path(File.dirname(__FILE__))
$rails_root = "#{$here}/../.."

$logs = "#{$rails_root}/logs/"
$script = "#{$rails_root}/script/autotest"

namespace :autotest do
  
  desc "start autotest background task"
  task :start do
    `#{$script} start`
  end 
  
  desc "stop autotest background task"
  task :stop do
    `#{$script} stop`
  end
   
end

autotest_runner

#!/usr/bin/env ruby -wKU

require "fileutils"
include FileUtils

RAILS_ROOT   = File.expand_path(File.dirname(__FILE__) + "/..")
AUTOTEST_PID = "#{RAILS_ROOT}/log/autotest.pid"

good_execution = false
if ARGV.size > 0
  if ARGV[0] =~ /start/i
    puts "Starting autotest background runner"
    cd RAILS_ROOT
    `autotest &> #{RAILS_ROOT}/log/autotest.log &`
    proc_pid = $?.pid + 1
    `echo #{proc_pid} > #{AUTOTEST_PID}`
    good_execution = true
  elsif ARGV[0] =~ /stop/i
    puts "Stopping autotest background runner"
    proc_pid = `cat #{AUTOTEST_PID}`
    `kill #{proc_pid}`
    good_execution = true
  end
end

puts "usage: autotest [start|stop]" unless good_execution