Class: Goliath::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/goliath/runner.rb

Overview

The Goliath::Runner is responsible for parsing any provided options, settting up the rack application, creating a logger, and then executing the Goliath::Server with the loaded information.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv, api) ⇒ Goliath::Runner

Create a new Goliath::Runner

Parameters:

  • argv (Array) —

    The command line arguments

  • api (Object | nil) —

    The Goliath::API this runner is for, can be nil



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# File 'lib/goliath/runner.rb', line 63

def initialize(argv, api)
  api.options_parser(options_parser, options) if api
  options_parser.parse!(argv)

  @api = api
  @address = options.delete(:address)
  @port = options.delete(:port)

  @log_file = options.delete(:log_file)
  @pid_file = options.delete(:pid_file)

  @log_stdout = options.delete(:log_stdout)
  @daemonize = options.delete(:daemonize)
  @verbose = options.delete(:verbose)

  @server_options = options
end

Instance Attribute Details

#address ⇒ String

The address of the server @example 127.0.0.1

Returns:

  • (String) —

    The server address



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# File 'lib/goliath/runner.rb', line 12

def address
  @address
end

#api ⇒ Object

The API application

Returns:

  • (Object) —

    The API application the server will execute



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# File 'lib/goliath/runner.rb', line 44

def api
  @api
end

#app ⇒ Object

The Rack application

Returns:

  • (Object) —

    The rack application the server will execute



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# File 'lib/goliath/runner.rb', line 40

def app
  @app
end

#app_options ⇒ Hash

Any additional server options

Returns:

  • (Hash) —

    Any options to be passed to the server



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# File 'lib/goliath/runner.rb', line 52

def app_options
  @app_options
end

#daemonize ⇒ Boolean

Flag to determine if the server should daemonize

Returns:

  • (Boolean) —

    True if the server should daemonize, false otherwise



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# File 'lib/goliath/runner.rb', line 20

def daemonize
  @daemonize
end

#log_file ⇒ String

The log file for the server

Returns:

  • (String) —

    The file the server should log too



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# File 'lib/goliath/runner.rb', line 32

def log_file
  @log_file
end

#log_stdout ⇒ Boolean

Flag to determine if the server should log to standard output

Returns:

  • (Boolean) —

    True if the server should log to stdout, false otherwise



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# File 'lib/goliath/runner.rb', line 28

def log_stdout
  @log_stdout
end

#options ⇒ Hash (readonly)

The parsed options

Returns:

  • (Hash) —

    The options parsed by the runner



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# File 'lib/goliath/runner.rb', line 56

def options
  @options
end

#pid_file ⇒ String

The pid file for the server

Returns:

  • (String) —

    The file to write the servers pid file into



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# File 'lib/goliath/runner.rb', line 36

def pid_file
  @pid_file
end

#plugins ⇒ Array

The plugins the server will execute

Returns:

  • (Array) —

    The list of plugins to be executed by the server



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# File 'lib/goliath/runner.rb', line 48

def plugins
  @plugins
end

#port ⇒ Integer

The port of the server @example 9000

Returns:

  • (Integer) —

    The server port



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# File 'lib/goliath/runner.rb', line 16

def port
  @port
end

#verbose ⇒ Boolean

Flag to determine if the server should run in verbose mode

Returns:

  • (Boolean) —

    True to turn on verbose mode, false otherwise



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# File 'lib/goliath/runner.rb', line 24

def verbose
  @verbose
end

Instance Method Details

#load_app(&blk) ⇒ Object

Given a block, this will use Rack::Builder to create the application

Parameters:

  • blk (Block) —

    The application block to load

Returns:

  • (Object) —

    The Rack application



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# File 'lib/goliath/runner.rb', line 120

def load_app(&blk)
  @app = ::Rack::Builder.app(&blk)
end

#load_plugins(plugins) ⇒ Nil

Stores the list of plugins to be used by the server

Parameters:

  • plugins (Array) —

    The list of plugins to use

Returns:

  • (Nil) 


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# File 'lib/goliath/runner.rb', line 128

def load_plugins(plugins)
  @plugins = plugins
end

#options_parser ⇒ OptionParser

Create the options parser

Returns:

  • (OptionParser) —

    Creates the options parser for the runner with the default options



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# File 'lib/goliath/runner.rb', line 84

def options_parser
  @options ||= {
    :address => Goliath::Server::DEFAULT_ADDRESS,
    :port => Goliath::Server::DEFAULT_PORT,

    :daemonize => false,
    :verbose => false,
    :log_stdout => false
  }

  @options_parser ||= OptionParser.new do |opts|
    opts.banner = "Usage: <server> [options]"

    opts.separator ""
    opts.separator "Server options:"

    opts.on('-e', '--environment NAME', "Set the execution environment (prod, dev or test) (default: #{Goliath.env})") { |val| Goliath.env = val }

    opts.on('-a', '--address HOST', "Bind to HOST address (default: #{@options[:address]})") { |addr| @options[:address] = addr }
    opts.on('-p', '--port PORT', "Use PORT (default: #{@options[:port]})") { |port| @options[:port] = port.to_i }

    opts.on('-l', '--log FILE', "Log to file (default: off)") { |file| @options[:log_file] = file }
    opts.on('-s', '--stdout', "Log to stdout (default: #{@options[:log_stdout]})") { |v| @options[:log_stdout] = v }

    opts.on('-P', '--pid FILE', "Pid file (default: off)") { |file| @options[:pid_file] = file }
    opts.on('-d', '--daemonize', "Run daemonized in the background (default: #{@options[:daemonize]})") { |v| @options[:daemonize] = v }
    opts.on('-v', '--verbose', "Enable verbose logging (default: #{@options[:verbose]})") { |v| @options[:verbose] = v }

    opts.on('-h', '--help', 'Display help message') { show_options(opts) }
  end
end

#run ⇒ Nil

Create environment to run the server. If daemonize is set this will fork off a child and kill the runner.

Returns:

  • (Nil) 


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# File 'lib/goliath/runner.rb', line 136

def run
  if @daemonize
    Process.fork do
      Process.setsid
      exit if fork

      @pid_file ||= './goliath.pid'
      @log_file ||= File.expand_path('goliath.log')
      store_pid(Process.pid)

      Dir.chdir(File.dirname(__FILE__))
      File.umask(0000)

      stdout_log_file = "#{File.dirname(@log_file)}/#{File.basename(@log_file)}_stdout.log"

      STDIN.reopen("/dev/null")
      STDOUT.reopen(stdout_log_file, "a")
      STDERR.reopen(STDOUT)

      run_server
    end
  else
    run_server
  end
end