Class: RabbitWQ::Cli

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

Constant Summary collapse

SUB_COMMANDS = 
%w(
  restart
  start
  status
  stop
)
DEFAULT_CONFIG_PATH = 
"/etc/#{APP_ID}/#{APP_ID}.conf"
DEFAULT_LOG_PATH = 
"/var/log/#{APP_ID}/#{APP_ID}.log"
DEFAULT_PID_PATH = 
"/var/run/#{APP_ID}/#{APP_ID}.pid"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Cli

Returns a new instance of Cli.



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

def initialize( args )
  Trollop::options do
    version VERSION_COPYRIGHT
    banner <<-EOS
#{APP_NAME} #{VERSION_COPYRIGHT}

Usage:
  #{APP_ID} [command] [options]

  commands:
#{SUB_COMMANDS.map { |sub_cmd| "    #{sub_cmd}" }.join( "\n" )}

  (For help with a command: #{APP_ID} [command] -h)

options:
  EOS
    stop_on SUB_COMMANDS
  end

  # Get the sub-command and its options
  #
  @cmd = ARGV.shift || ''
  @options = case( cmd )
    when "restart"
      Trollop::options do
        opt :config, "The path for the config file", :type => String, :short => '-c', :default => DEFAULT_CONFIG_PATH
        opt :log_level, "The log level", :type => String, :default => 'info'
        opt :log, "The path for the log file", :type => String, :short => '-l', :default => DEFAULT_LOG_PATH
        opt :pid, "The path for the PID file", :type => String, :default => DEFAULT_PID_PATH
        opt :threads, "The number of threads", :type => Integer, :short => '-t'
      end
    when "start"
      Trollop::options do
        opt :config, "The path for the config file", :type => String, :short => '-c', :default => DEFAULT_CONFIG_PATH
        opt :interactive, "Execute the server in interactive mode", :short => '-i'
        opt :log_level, "The log level", :type => String, :default => 'info'
        opt :log, "The path for the log file", :type => String, :short => '-l', :default => DEFAULT_LOG_PATH
        opt :pid, "The path for the PID file", :type => String, :default => DEFAULT_PID_PATH
        opt :threads, "The number of threads", :type => Integer, :short => '-t'
      end
    when "status"
      Trollop::options do
        opt :pid, "The path for the PID file", :type => String, :default => DEFAULT_PID_PATH
      end
    when "stop"
      Trollop::options do
        opt :pid, "The path for the PID file", :type => String, :default => DEFAULT_PID_PATH
      end
    else
      Trollop::die "unknown command #{cmd.inspect}"
    end

  if cmd == 'start'
    unless options[:interactive]
      Trollop::die( :config, "is required when running as daemon" ) unless options[:config]
      Trollop::die( :log, "is required when running as daemon" ) unless options[:log]
      Trollop::die( :pid, "is required when running as daemon" ) unless options[:pid]
    end
  end

  if %w(restart status stop).include?( cmd )
    Trollop::die( :pid, "is required" ) unless options[:pid]
  end
end

Instance Attribute Details

#cmd ⇒ Object (readonly)

Returns the value of attribute cmd.



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

def cmd
  @cmd
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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

def options
  @options
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/rabbit_wq/cli.rb', line 88

def run
  send( cmd )
end