Rails，启动-重要

require File.dirname(__FILE__)  +   ' /../config/boot '
require  ' commands/server '

unless defined?(RAILS_ROOT)
  root_path  =  File.join(File.dirname( __FILE__ ),  ' .. ' )

  unless RUBY_PLATFORM  =~   / mswin32 /
    require  ' pathname '
    root_path  =  Pathname.new(root_path).cleanpath(true).to_s
  end

  RAILS_ROOT  =  root_path
end

   if  File.directory?( " #{RAILS_ROOT}/vendor/rails " )
    require  " #{RAILS_ROOT}/vendor/rails/railties/lib/initializer "
   else
    require  ' rubygems '

require  ' active_support '
require  ' fileutils '

begin
  require_library_or_gem  ' fcgi '
rescue Exception
   #  FCGI not available
end

server  =  case ARGV.first
  when  " lighttpd "
    ARGV.shift
  when  " webrick "
    ARGV.shift
   else
     if  RUBY_PLATFORM ! ~   / mswin /   &&  !silence_stderr { `lighttpd  - version` }.blank?  &&  defined?(FCGI)
       " lighttpd "
     else
       " webrick "
    end
end

if  server  ==   " webrick "
  puts  " => Booting WEBrick "
else
  puts  " => Booting lighttpd (use 'script/server webrick' to force WEBrick) "
end

FileUtils.mkdir_p( % w( tmp / sessions tmp / cache tmp / sockets ))
require  " commands/servers/#{server} "

require  ' webrick '
require  ' optparse '

OPTIONS  =  {
  :port             =>   3000 ,
  :ip               =>   " 0.0.0.0 " ,
  :environment      =>  (ENV[ ' RAILS_ENV ' ]  ||   " development " ).dup,
  :server_root      =>  File.expand_path(RAILS_ROOT  +   " /public/ " ),
  :server_type      =>  WEBrick::SimpleServer,
  :charset          =>   " UTF-8 " ,
  :mime_types       =>  WEBrick::HTTPUtils::DefaultMimeTypes
}

ARGV.options do  | opts |
  script_name  =  File.basename($0)
  opts.banner  =   " Usage: ruby #{script_name} [options] "

  opts.separator  ""

  opts.on( " -p " ,  " --port=port " , Integer,
           " Runs Rails on the specified port. " ,
           " Default: 3000 " ) {  | v |  OPTIONS[:port]  =  v }
  opts.on( " -b " ,  " --binding=ip " , String,
           " Binds Rails to the specified ip. " ,
           " Default: 0.0.0.0 " ) {  | v |  OPTIONS[:ip]  =  v }
  opts.on( " -e " ,  " --environment=name " , String,
           " Specifies the environment to run this server under (test/development/production). " ,
           " Default: development " ) {  | v |  OPTIONS[:environment]  =  v }
  opts.on( " -m " ,  " --mime-types=filename " , String,
                   " Specifies an Apache style mime.types configuration file to be used for mime types " ,
                   " Default: none " ) {  | mime_types_file |  OPTIONS[:mime_types]  =  WEBrick::HTTPUtils::load_mime_types(mime_types_file) }

  opts.on( " -d " ,  " --daemon " ,
           " Make Rails run as a Daemon (only works if fork is available -- meaning on *nix). "
          ) { OPTIONS[:server_type]  =  WEBrick::Daemon }

  opts.on( " -c " ,  " --charset=charset " , String,
           " Set default charset for output. " ,
           " Default: UTF-8 " ) {  | v |  OPTIONS[:charset]  =  v }

  opts.separator  ""

  opts.on( " -h " ,  " --help " ,
           " Show this help message. " ) { puts opts; exit }

  opts.parse!
end

ENV[ " RAILS_ENV " ]  =  OPTIONS[:environment]
RAILS_ENV.replace(OPTIONS[:environment])  if  defined?(RAILS_ENV)

require RAILS_ROOT  +   " /config/environment "
require  ' webrick_server '

OPTIONS[ ' working_directory ' ]  =  File.expand_path(RAILS_ROOT)

puts  " => Rails application started on http://#{OPTIONS[:ip]}:#{OPTIONS[:port]} "
puts  " => Ctrl-C to shutdown server; call with --help for options "   if  OPTIONS[:server_type]  ==  WEBrick::SimpleServer
DispatchServlet.dispatch(OPTIONS)