Class: Ardb::CLI::CommandSet

Inherits:
Object
  • Object
show all
Defined in:
lib/ardb/cli/commands.rb

Instance Method Summary collapse

Constructor Details

#initialize(&unknown_cmd_block) ⇒ CommandSet

Returns a new instance of CommandSet.



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# File 'lib/ardb/cli/commands.rb', line 322

def initialize(&unknown_cmd_block)
  @lookup    = Hash.new{ |h,k| unknown_cmd_block.call(k) }
  @names     = []
  @aliases   = {}
  @summaries = {}
end

Instance Method Details

#[](cmd_name) ⇒ Object 



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# File 'lib/ardb/cli/commands.rb', line 349

def [](cmd_name)
  @lookup[cmd_name]
end

#add(klass) ⇒ Object 



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# File 'lib/ardb/cli/commands.rb', line 329

def add(klass)
  begin
    cmd = klass.new
  rescue StandardError
    # don"t add any commands you can"t initialize
  else
    @lookup[cmd.command_name] = cmd
    @to_s = nil
    @names << cmd.command_name
    @summaries[cmd.command_name] = cmd.command_summary.to_s
  end
end

#remove(klass) ⇒ Object 



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# File 'lib/ardb/cli/commands.rb', line 342

def remove(klass)
  @lookup.delete(klass.command_name)
  @names.delete(klass.command_name)
  @summaries.delete(klass.command_name)
  @to_s = nil
end

#size ⇒ Object 



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# File 'lib/ardb/cli/commands.rb', line 353

def size
  @names.size
end

#to_s ⇒ Object 



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# File 'lib/ardb/cli/commands.rb', line 357

def to_s
  max_name_size  = @names.map{ |n| n.size }.max || 0

  @to_s ||= @names.map do |n|
    "#{n.ljust(max_name_size)} #{@summaries[n]}"
  end.join("\n")
end