mirror of
https://github.com/rails/rails.git
synced 2022-11-09 12:12:34 -05:00
343 lines
12 KiB
Ruby
343 lines
12 KiB
Ruby
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# Copyright (c) 2005 Zed A. Shaw
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# You can redistribute it and/or modify it under the same terms as Ruby.
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#
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# Additional work donated by contributors. See http://mongrel.rubyforge.org/attributions.html
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# for more information.
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require 'optparse'
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require 'yaml'
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require 'etc'
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require 'mongrel'
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require 'rails/mongrel_server/handler'
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module Rails
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module MongrelServer
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def self.send_signal(signal, pid_file)
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pid = open(pid_file).read.to_i
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print "Sending #{signal} to Mongrel at PID #{pid}..."
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begin
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Process.kill(signal, pid)
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rescue Errno::ESRCH
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puts "Process does not exist. Not running."
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end
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puts "Done."
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end
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class RailsConfigurator < Mongrel::Configurator
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def setup_mime_types
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mime = {}
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if defaults[:mime_map]
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Mongrel.log("Loading additional MIME types from #{defaults[:mime_map]}")
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mime = load_mime_map(defaults[:mime_map], mime)
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end
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mime.each {|k,v| Mongrel::DirHandler::add_mime_type(k,v) }
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end
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def mount_rails(prefix)
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ENV['RAILS_ENV'] = defaults[:environment]
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::RAILS_ENV.replace(defaults[:environment]) if defined?(::RAILS_ENV)
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env_location = "#{defaults[:cwd]}/config/environment"
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require env_location
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ActionController::AbstractRequest.relative_url_root = defaults[:prefix]
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uri prefix, :handler => Rails::MongrelServer::RailsHandler.new
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end
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end
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class Start < GemPlugin::Plugin "/commands"
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include Mongrel::Command::Base
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def configure
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options [
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["-e", "--environment ENV", "Rails environment to run as", :@environment, ENV['RAILS_ENV'] || "development"],
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["-d", "--daemonize", "Run daemonized in the background", :@daemon, false],
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['-p', '--port PORT', "Which port to bind to", :@port, 3000],
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['-a', '--address ADDR', "Address to bind to", :@address, "0.0.0.0"],
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['-l', '--log FILE', "Where to write log messages", :@log_file, "log/mongrel.log"],
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['-P', '--pid FILE', "Where to write the PID", :@pid_file, "tmp/pids/mongrel.pid"],
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['-n', '--num-procs INT', "Number of processors active before clients denied", :@num_procs, 1024],
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['-o', '--timeout TIME', "Time to wait (in seconds) before killing a stalled thread", :@timeout, 60],
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['-t', '--throttle TIME', "Time to pause (in hundredths of a second) between accepting clients", :@throttle, 0],
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['-m', '--mime PATH', "A YAML file that lists additional MIME types", :@mime_map, nil],
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['-c', '--chdir PATH', "Change to dir before starting (will be expanded)", :@cwd, RAILS_ROOT],
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['-r', '--root PATH', "Set the document root (default 'public')", :@docroot, "public"],
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['-B', '--debug', "Enable debugging mode", :@debug, false],
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['-C', '--config PATH', "Use a config file", :@config_file, nil],
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['-S', '--script PATH', "Load the given file as an extra config script", :@config_script, nil],
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['-G', '--generate PATH', "Generate a config file for use with -C", :@generate, nil],
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['', '--user USER', "User to run as", :@user, nil],
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['', '--group GROUP', "Group to run as", :@group, nil],
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['', '--prefix PATH', "URL prefix for Rails app", :@prefix, nil],
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['-b', '--binding ADDR', "Address to bind to (deprecated, use -a)", :@address, "0.0.0.0"],
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['-u', '--debugger', "Enable debugging mode (deprecated, use -B)", :@debug, false]
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]
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end
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def validate
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if @config_file
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valid_exists?(@config_file, "Config file not there: #@config_file")
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return false unless @valid
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@config_file = File.expand_path(@config_file)
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load_config
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return false unless @valid
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end
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@cwd = File.expand_path(@cwd)
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valid_dir? @cwd, "Invalid path to change to during daemon mode: #@cwd"
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# Change there to start, then we'll have to come back after daemonize
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Dir.chdir(@cwd)
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valid?(@prefix[0] == ?/ && @prefix[-1] != ?/, "Prefix must begin with / and not end in /") if @prefix
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valid_dir? File.dirname(@log_file), "Path to log file not valid: #@log_file"
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valid_dir? File.dirname(@pid_file), "Path to pid file not valid: #@pid_file"
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valid_dir? @docroot, "Path to docroot not valid: #@docroot"
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valid_exists? @mime_map, "MIME mapping file does not exist: #@mime_map" if @mime_map
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valid_exists? @config_file, "Config file not there: #@config_file" if @config_file
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valid_dir? File.dirname(@generate), "Problem accessing directory to #@generate" if @generate
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valid_user? @user if @user
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valid_group? @group if @group
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return @valid
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end
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def run
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if @generate
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@generate = File.expand_path(@generate)
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Mongrel.log(:error, "** Writing config to \"#@generate\".")
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open(@generate, "w") {|f| f.write(settings.to_yaml) }
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Mongrel.log(:error, "** Finished. Run \"mongrel_rails start -C #@generate\" to use the config file.")
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exit 0
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end
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config = RailsConfigurator.new(settings) do
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defaults[:log] = $stdout if defaults[:environment] == 'development'
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Mongrel.log("=> Rails application starting on http://#{defaults[:host]}:#{defaults[:port]}")
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unless defaults[:daemon]
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Mongrel.log("=> Call with -d to detach")
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Mongrel.log("=> Ctrl-C to shutdown server")
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start_debugger if defaults[:debug]
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end
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if defaults[:daemon]
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if File.exist? defaults[:pid_file]
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Mongrel.log(:error, "!!! PID file #{defaults[:pid_file]} already exists. Mongrel could be running already. Check your #{defaults[:log_file]} for errors.")
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Mongrel.log(:error, "!!! Exiting with error. You must stop mongrel and clear the .pid before I'll attempt a start.")
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exit 1
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end
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daemonize
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Mongrel.log("Daemonized, any open files are closed. Look at #{defaults[:pid_file]} and #{defaults[:log_file]} for info.")
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Mongrel.log("Settings loaded from #{@config_file} (they override command line).") if @config_file
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end
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Mongrel.log("Starting Mongrel listening at #{defaults[:host]}:#{defaults[:port]}, further information can be found in log/mongrel-#{defaults[:host]}-#{defaults[:port]}.log")
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listener do
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prefix = defaults[:prefix] || '/'
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if defaults[:debug]
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Mongrel.log("Installing debugging prefixed filters. Look in log/mongrel_debug for the files.")
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debug(prefix)
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end
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setup_mime_types
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dir_handler = Mongrel::DirHandler.new(defaults[:docroot], false)
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dir_handler.passthrough_missing_files = true
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unless defaults[:environment] == 'production'
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Mongrel.log("Mounting DirHandler at #{prefix}...")
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uri prefix, :handler => dir_handler
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end
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Mongrel.log("Starting Rails with #{defaults[:environment]} environment...")
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Mongrel.log("Mounting Rails at #{prefix}...")
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mount_rails(prefix)
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Mongrel.log("Rails loaded.")
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Mongrel.log("Loading any Rails specific GemPlugins" )
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load_plugins
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if defaults[:config_script]
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Mongrel.log("Loading #{defaults[:config_script]} external config script")
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run_config(defaults[:config_script])
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end
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setup_signals
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end
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end
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config.run
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Mongrel.log("Mongrel #{Mongrel::Const::MONGREL_VERSION} available at #{@address}:#{@port}")
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if config.defaults[:daemon]
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config.write_pid_file
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else
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Mongrel.log("Use CTRL-C to stop.")
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tail "log/#{config.defaults[:environment]}.log"
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end
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config.join
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if config.needs_restart
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unless RUBY_PLATFORM =~ /djgpp|(cyg|ms|bcc)win|mingw/
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cmd = "ruby #{__FILE__} start #{original_args.join(' ')}"
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Mongrel.log("Restarting with arguments: #{cmd}")
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config.stop(false, true)
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config.remove_pid_file
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if config.defaults[:daemon]
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system cmd
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else
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Mongrel.log(:error, "Can't restart unless in daemon mode.")
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exit 1
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end
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else
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Mongrel.log("Win32 does not support restarts. Exiting.")
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end
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end
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end
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def load_config
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settings = {}
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begin
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settings = YAML.load_file(@config_file)
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ensure
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Mongrel.log(:error, "** Loading settings from #{@config_file} (they override command line).") unless @daemon || settings[:daemon]
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end
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settings[:includes] ||= ["mongrel"]
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# Config file settings will override command line settings
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settings.each do |key, value|
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key = key.to_s
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if config_keys.include?(key)
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key = 'address' if key == 'host'
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self.instance_variable_set("@#{key}", value)
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else
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failure "Unknown configuration setting: #{key}"
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@valid = false
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end
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end
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end
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def config_keys
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@config_keys ||=
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%w(address host port cwd log_file pid_file environment docroot mime_map daemon debug includes config_script num_processors timeout throttle user group prefix)
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end
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def settings
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config_keys.inject({}) do |hash, key|
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value = self.instance_variable_get("@#{key}")
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key = 'host' if key == 'address'
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hash[key.to_sym] ||= value
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hash
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end
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end
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def start_debugger
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require_library_or_gem 'ruby-debug'
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Debugger.start
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Debugger.settings[:autoeval] = true if Debugger.respond_to?(:settings)
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Mongrel.log("=> Debugger enabled")
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rescue Exception
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Mongrel.log(:error, "You need to install ruby-debug to run the server in debugging mode. With gems, use 'gem install ruby-debug'")
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exit
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end
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def tail(log_file)
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cursor = File.size(log_file)
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last_checked = Time.now
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tail_thread = Thread.new do
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File.open(log_file, 'r') do |f|
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loop do
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f.seek cursor
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if f.mtime > last_checked
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last_checked = f.mtime
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contents = f.read
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cursor += contents.length
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print contents
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end
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sleep 1
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end
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end
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end
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tail_thread
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end
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end
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class Stop < GemPlugin::Plugin "/commands"
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include Mongrel::Command::Base
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def configure
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options [
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['-c', '--chdir PATH', "Change to dir before starting (will be expanded).", :@cwd, "."],
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['-f', '--force', "Force the shutdown (kill -9).", :@force, false],
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['-w', '--wait SECONDS', "Wait SECONDS before forcing shutdown", :@wait, "0"],
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['-P', '--pid FILE', "Where the PID file is located.", :@pid_file, "log/mongrel.pid"]
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]
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end
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def validate
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@cwd = File.expand_path(@cwd)
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valid_dir? @cwd, "Invalid path to change to during daemon mode: #@cwd"
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Dir.chdir @cwd
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valid_exists? @pid_file, "PID file #@pid_file does not exist. Not running?"
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return @valid
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end
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def run
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if @force
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@wait.to_i.times do |waiting|
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exit(0) if not File.exist? @pid_file
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sleep 1
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end
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Mongrel::send_signal("KILL", @pid_file) if File.exist? @pid_file
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else
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Mongrel::send_signal("TERM", @pid_file)
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end
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end
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end
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class Restart < GemPlugin::Plugin "/commands"
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include Mongrel::Command::Base
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def configure
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options [
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['-c', '--chdir PATH', "Change to dir before starting (will be expanded)", :@cwd, '.'],
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['-P', '--pid FILE', "Where the PID file is located", :@pid_file, "log/mongrel.pid"]
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]
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end
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def validate
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@cwd = File.expand_path(@cwd)
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valid_dir? @cwd, "Invalid path to change to during daemon mode: #@cwd"
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Dir.chdir @cwd
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valid_exists? @pid_file, "PID file #@pid_file does not exist. Not running?"
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return @valid
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end
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def run
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MongrelServer::send_signal("USR2", @pid_file)
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end
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end
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end
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end
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