Class: Coaster::CmdOptions

Inherits:
Object show all
Defined in:
lib/coaster/cmd_options.rb

Direct Known Subclasses

Git::Options

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cmd, *args, **options) ⇒ CmdOptions

Returns a new instance of CmdOptions.



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# File 'lib/coaster/cmd_options.rb', line 74

def initialize(cmd, *args, **options)
  arg_options = args.extract_options!
  options = options.merge(arg_options)
  @cmd = cmd
  @cmd, @sub_cmd = @cmd if @cmd.is_a?(Array)
  remain_ix = args.index{ |k| k == '--'}
  if remain_ix
    @remain_args = args[remain_ix+1..-1]
    @args = args[0...remain_ix]
  else
    @args = args
  end
  @args.delete_if do |arg|
    if arg.is_a?(self.class)
      options = arg.to_h.merge(options)
      true
    else
      false
    end
  end
  options['--'] ||= []
  options['--'] += @remain_args if @remain_args
  @options = options
  @args << self.class.options_to_s(options).strip
  @str = @args.join(' ')
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/coaster/cmd_options.rb', line 72

def args
  @args
end

#cmd ⇒ Object (readonly)

Returns the value of attribute cmd.



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# File 'lib/coaster/cmd_options.rb', line 72

def cmd
  @cmd
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/coaster/cmd_options.rb', line 72

def options
  @options
end

#remain_args ⇒ Object (readonly)

Returns the value of attribute remain_args.



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# File 'lib/coaster/cmd_options.rb', line 72

def remain_args
  @remain_args
end

#str ⇒ Object (readonly)

Returns the value of attribute str.



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# File 'lib/coaster/cmd_options.rb', line 72

def str
  @str
end

#sub_cmd ⇒ Object (readonly)

Returns the value of attribute sub_cmd.



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# File 'lib/coaster/cmd_options.rb', line 72

def sub_cmd
  @sub_cmd
end

Class Method Details

.option_v_to_s(option_v) ⇒ Object 



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# File 'lib/coaster/cmd_options.rb', line 14

def option_v_to_s(option_v)
  case option_v
  when Hash then option_v.map{|vk,vv| Set[vk, vv]}.to_set
  when Array then option_v.map{|v| option_v_to_s(v)}.join(',')
  when Set then option_v.map{|v| option_v_to_s(v)}.join('=')
  else
    option_v = (option_v || '').to_s
    option_v = option_v.gsub(/"/, '\"')
    option_v = "\"#{option_v}\"" if option_v.include?(' ')
    option_v
  end
end

.options_h_to_s(options) ⇒ Object 



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# File 'lib/coaster/cmd_options.rb', line 27

def options_h_to_s(options)
  opts = []

  # multiple options can be passed by set
  options.map do |k, v|
    if v.is_a?(Set)
      v.each {|set_v| opts << [k, set_v]}
    else
      opts << [k, v]
    end
  end

  targets = ''
  parsed = opts.map do |k, v|
    if k.start_with?(/--\w/)
      v = option_v_to_s(v)
      if v.is_a?(Set)
        v.map {|vv| "#{k}=#{option_v_to_s(vv)}" }.join(' ')
      else
        "#{k}#{v.length > 0 ? "=#{v}" : ''}" # ex, --config-env=<name>=<envvar>
      end
    elsif k.start_with?(/-\w/)
      v = option_v_to_s(v)
      if v.is_a?(Set)
        v.map {|vv| "#{k} #{option_v_to_s(vv)}"}.join(' ')
      else
        "#{k} #{v}" # ex, -c <name>=<value>
      end
    elsif k == '--'
      if v.present?
        v = Array.wrap(v)
        v = v.map{|e| option_v_to_s(e)}.join(' ')
        targets = "-- #{v}" # ex, -- <args>
        ''
      end
    else
      raise "Unknown option: #{k}"
    end
  end

  parsed << targets
  parsed.join(' ')
end

.options_to_s(options) ⇒ Object 



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# File 'lib/coaster/cmd_options.rb', line 6

def options_to_s(options)
  case options
  when Hash then options_h_to_s(options)
  when Array, Set then options.map{|o| options_to_s(o)}.join(' ')
  else options
  end
end

Instance Method Details

#merge(*args, **options) ⇒ Object 



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# File 'lib/coaster/cmd_options.rb', line 119

def merge(*args, **options)
  if args.first.is_a?(CmdOptions)
    other = args.shift
  else
    other = self.class.new([@cmd, @sub_cmd], *args, **options)
  end
  self.class.new(to_h.merge(other.to_h))
end

#parser ⇒ Object 



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# File 'lib/coaster/cmd_options.rb', line 105

def parser
  parser_proc = parser_proc(@cmd, @sub_cmd)
  instance_exec(&parser_proc)
end

#parser_proc(*args) ⇒ Object 



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# File 'lib/coaster/cmd_options.rb', line 101

def parser_proc(*args)
  raise 'Not implemented'
end

#to_h ⇒ Object 



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# File 'lib/coaster/cmd_options.rb', line 110

def to_h
  return @hash if defined?(@hash)
  @hash = {}
  remain_args = parser.parse!(@str.split(' '))
  @hash['--'] = remain_args if remain_args.any?
  @hash
end

#to_s ⇒ Object 



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# File 'lib/coaster/cmd_options.rb', line 128

def to_s
  return self.class.options_h_to_s(@hash) if defined?(@hash)
  @str
end