Class: Skytap::CommandLine

Inherits:
Object
  • Object
show all
Defined in:
lib/skytap/command_line.rb

Constant Summary collapse

ALLOWED_GLOBAL_OPTIONS = 
{
  # Flags
  :'base-url' => { :default => 'https://cloud.skytap.com' },
  :'username' => { :desc => 'Skytap username' },
  :'api-token' => { :desc => 'Skytap API token, found on "My Account" page', :hide_default_value => true },
  :'http-format' => { :default => 'json', :in => ['json', 'xml'], :desc => 'HTTP request and response format' },
  :'log-level' => { :default => 'info', :in => ['quiet', 'info', 'verbose'], :desc => 'Output verbosity' },
  :'params-file' => { :desc => 'File whose contents to send as request params, read according to http-format' },
  :'param' => { :desc => 'Request parameters in form --param=key1:value1 --param=key2:value2', :default => [], :multiple => true },

  # Switches
  :'help' => { :desc => 'Show help message for command', :switch => true },
  :'version' => { :desc => 'Show CLI version', :switch => true },
  :'colorize' => { :default => true, :desc => 'Colorize output?', :switch => true, :negatable => true },
  :'verify-certs' => { :default => true, :desc => 'Verify HTTPS certificates?', :switch => true, :negatable => true },
  :'ask' => { :default => true, :desc => 'Ask for params interactively?', :switch => true, :negatable => true }
}

Class Method Summary collapse

Class Method Details

.global_options ⇒ Object 



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# File 'lib/skytap/command_line.rb', line 81

def self.global_options
  return @global_options if @global_options

  rc = SkytapRC.load
  @global_options = ALLOWED_GLOBAL_OPTIONS.inject({}) do |acc, (k, opts)|
    opts[:default] = rc[k] if rc.has_key?(k)
    acc[k] = Option.new(k, opts)
    acc
  end
end

.parse(argv = ARGV) ⇒ Object 



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# File 'lib/skytap/command_line.rb', line 24

def self.parse(argv=ARGV)
  global = read_global_options
  command_opts = {}
  args = []
  argv.each do |arg|
    if arg =~ /^[^-]/
      args << arg
    # Switches
    elsif arg =~ /^\-\-(no-)?([^=]+)$/
      negated, name = $1, $2.to_sym
      val = !negated
      if global.has_key?(name)
        global[name] = val
      else
        command_opts[name] = val
      end
    # Flags
    elsif arg =~ /^\-\-(.+?)=(.+)$/
      name, val = $1.to_sym, $2

      if global.has_key?(name)
        multiple = ALLOWED_GLOBAL_OPTIONS[name].try(:[], :multiple)
        if multiple
          if global[name].present?
            global[name] << val
          else
            global[name] = [val]
          end
        else
          global[name] = val
        end
      else
        command_opts[name] = val
      end
    elsif arg =~ /^\-([A-Za-z0-9]+)$/
      raise Skytap::Error.new 'Single-dash flags not supported. Use --flag form.'
    else
      raise "Unrecognized command-line arg: #{arg.inspect}"
    end
  end

  # To simplify client handling, treat a first arg of "help" as --help.
  if args.first == 'help'
    args.shift
    global[:help] = true
  end

  [args, global, command_opts]
end

.read_global_options ⇒ Object 



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# File 'lib/skytap/command_line.rb', line 74

def self.read_global_options
  global_options.inject({}) do |acc, (k, option)|
    acc[k] = option.val
    acc
  end
end