Class: Front::CLI::Configuration

Inherits:
Object
  • Object
show all
Includes:
Loader
Defined in:
lib/front/cli/configuration.rb

Constant Summary

Constants included from Loader

Loader::LIB_DIR, Loader::ROOT_DIR

Instance Method Summary collapse

Instance Method Details

#get_parser(args, options) ⇒ Object 



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# File 'lib/front/cli/configuration.rb', line 18

def get_parser(args, options)
  OptionParser.new do |opts|
    options.opts = opts
    opts.banner = 'Usage: front [options] [action]'
    opts.separator ''
    opts.separator 'Actions'
    opts.separator '  create     : create a new pool'
    opts.separator '  destroy    : destroy pool'
    opts.separator '  next       : switch to next instance in pool'
    opts.separator '  ssh        : ssh to current instance => vagrant ssh'
    opts.separator '  ssh_config : print ssh config for current instance'
    opts.separator '  inventory  : print inventory file (for ansible)'
    opts.separator ''
    opts.separator 'Options'
    opts.separator ''

    opts.on('-s', '--size <size>', Integer, 'Size of instance pool') do |pool_size|
      options.pool_size = pool_size
    end

    opts.on_tail('-V', '--version', 'Print Front version') do
      options.action = :show_version
    end

    opts.on_tail('-h', '--help', 'Print Front help') do
      options.action = :show_help
    end
  end
end

#load(args) ⇒ Object 



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# File 'lib/front/cli/configuration.rb', line 9

def load(args)
  options = OpenStruct.new
  options.action = nil
  options.error = nil
  options.pool_size = 2

  parse(args, options)
end

#parse(args, options) ⇒ Object 



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# File 'lib/front/cli/configuration.rb', line 48

def parse(args, options)
  parser = get_parser(args, options)

  begin
    parser.parse!(args)
    if options.action.nil?
      if args.length == 1
        options.action = args[0]
      else
        raise OptionParser::InvalidOption.new(args)
      end
    end
  rescue OptionParser::InvalidOption => err
    options.error = err
    options.action = :show_invalid_option
  rescue OptionParser::MissingArgument => err
    options.error = err
    options.action = :show_missing_args
  rescue OptionParser::ParseError => err
    options.error = err
    options.action = :show_parser_error
  end

  options
end