Class: Quebert::CommandLineRunner

Inherits:
Object
  • Object
show all
Defined in:
lib/quebert/command_line_runner.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv) ⇒ CommandLineRunner

Returns a new instance of CommandLineRunner.



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# File 'lib/quebert/command_line_runner.rb', line 6

def initialize(argv)
  @argv = argv
  
  # Default options values
  @options = {
    :chdir  => Dir.pwd
  }
  
  parse!
end

Instance Attribute Details

#arguments ⇒ Object

Returns the value of attribute arguments.



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# File 'lib/quebert/command_line_runner.rb', line 4

def arguments
  @arguments
end

#command ⇒ Object

Returns the value of attribute command.



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# File 'lib/quebert/command_line_runner.rb', line 4

def command
  @command
end

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/quebert/command_line_runner.rb', line 4

def options
  @options
end

Class Method Details

.dispatch(args = ARGV) ⇒ Object 



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# File 'lib/quebert/command_line_runner.rb', line 39

def self.dispatch(args = ARGV)
  runner = new(args)
  params = runner.options
  
  if dir = params[:chdir]
    Dir.chdir dir
  end

  if pid_file = params[:pid]
    Support::PidFile.new(pid_file).write!
  end

  if log_path = params[:log]
    Quebert.config.log_file_path = log_path
  end

  if config = params[:config] || auto_config
    require config
  end
  
  Worker.new.start
end

Instance Method Details

#parse! ⇒ Object

Parse the options.



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# File 'lib/quebert/command_line_runner.rb', line 33

def parse!
  parser.parse! @argv
  @command   = @argv.shift
  @arguments = @argv
end

#parser ⇒ Object 



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# File 'lib/quebert/command_line_runner.rb', line 17

def parser
  @parser ||= OptionParser.new do |opts|
    opts.banner = "Usage: quebert [options]"
    
    opts.separator ""
    
    opts.on("-l", "--log FILE", "File to redirect output " +                      
                                "(default: #{@options[:log]})")                   { |file| @options[:log] = file }
    opts.on("-P", "--pid FILE", "File to store PID " +                            
                                "(default: #{@options[:pid]})")                   { |file| @options[:pid] = file }
    opts.on("-C", "--config FILE", "Load options from config file")               { |file| @options[:config] = file }
    opts.on("-c", "--chdir DIR", "Change to dir before starting")                 { |dir| @options[:chdir] = File.expand_path(dir) }
  end
end