Class: Racecar::Cli

Inherits:
Object
  • Object
show all
Defined in:
lib/racecar/cli.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Cli

Returns a new instance of Cli.



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# File 'lib/racecar/cli.rb', line 13

def initialize(args)
  @parser = build_parser
  @parser.parse!(args)
  @consumer_name = args.first or raise Racecar::Error, "no consumer specified"
end

Class Method Details

.main(args) ⇒ Object 



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# File 'lib/racecar/cli.rb', line 9

def self.main(args)
  new(args).run
end

Instance Method Details

#config ⇒ Object 



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# File 'lib/racecar/cli.rb', line 19

def config
  Racecar.config
end

#run ⇒ Object 



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# File 'lib/racecar/cli.rb', line 23

def run
  $stderr.puts "=> Starting Racecar consumer #{consumer_name}..."

  RailsConfigFileLoader.load!

  if File.exist?("config/racecar.rb")
    require "./config/racecar"
  end

  # Find the consumer class by name.
  consumer_class = Kernel.const_get(consumer_name)

  # Load config defined by the consumer class itself.
  config.load_consumer_class(consumer_class)

  config.validate!

  if config.logfile
    $stderr.puts "=> Logging to #{config.logfile}"
    Racecar.logger = Logger.new(config.logfile)
  end

  if config.log_level
    Racecar.logger.level = Object.const_get("Logger::#{config.log_level.upcase}")
  end

  if config.datadog_enabled
    configure_datadog
  end

  $stderr.puts "=> Wrooooom!"

  if config.daemonize
    daemonize!
  else
    $stderr.puts "=> Ctrl-C to shutdown consumer"
  end

  processor = consumer_class.new

  Racecar.run(processor)
rescue => e
  $stderr.puts "=> Crashed: #{e.class}: #{e}\n#{e.backtrace.join("\n")}"

  config.error_handler.call(e)

  raise
end