Class: Commando

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(&block) ⇒ Commando

Returns a new instance of Commando.



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# File 'lib/commando.rb', line 10

def initialize(&block)
  @commands = []
  @descriptions = {}
  @formatador = Formatador.new
  if block_given?
    instance_eval(&block)
  end
  @finished = true
  self
end

Class Method Details

.commands(&block) ⇒ Object 



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# File 'lib/commando.rb', line 6

def self.commands(&block)
  new(&block)
end

Instance Method Details

#call(request = ARGV.join(' ').squeeze(' ').strip) ⇒ Object 



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# File 'lib/commando.rb', line 37

def call(request = ARGV.join(' ').squeeze(' ').strip)
  for command in @commands
    if match = command[0].match(request)
      response = command[1].call(*match.captures)
      break
    end
  end
  if match
    @formatador.display_line(response)
  else
    display_available_commands
  end
end

#columns(data) ⇒ Object 



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# File 'lib/commando.rb', line 51

def columns(data)
  widths = []

  for row in data
    row.length.times do |i|
      widths[i] = [(widths[i] || 0), row[i].length].max
    end
  end

  lines = []
  data.length.times do |row|
    string = ''
    data[row].length.times do |column|
      value = data[row][column]
      string << "#{value}#{(' ' * (widths[column] - value.length))}"
    end
    lines << string
    lines << ''
  end

  lines
end

#command(args, description, &block) ⇒ Object 



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# File 'lib/commando.rb', line 21

def command(args, description, &block)
  return if @finished
  args = [*args]
  command = []
  for arg in args
    case arg
    when Regexp
      command << arg.source
    when String
      command << Regexp.escape(arg)
    end
  end
  @commands << [/^#{command.join('\s').squeeze('\s')}$/ix, block]
  @descriptions[command.join(' ').squeeze(' ')] = description
end

#display_available_commands ⇒ Object 



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# File 'lib/commando.rb', line 74

def display_available_commands
  @formatador.display_line("\n[indent][bold]OPTIONS[/]\n")

  data = []

  for command, description in @descriptions
    data << ["/#{command}/", ' - ', "#{description}"]
  end

  @formatador.indent do
    for column in columns(data)
      @formatador.display_line(column)
    end
  end
end