class Gem::Commands::HelpCommand

公共类方法

new() 点击切换源码
调用超类方法 Gem::Command::new
# File rubygems/commands/help_command.rb, line 283
def initialize
  super "help", "Provide help on the 'gem' command"

  @command_manager = Gem::CommandManager.instance
end

公共实例方法

execute() 点击切换源码
# File rubygems/commands/help_command.rb, line 293
def execute
  arg = options[:args][0]

  _, help = SUBCOMMANDS.find do |command,|
    begins? command, arg
  end

  if help
    if Symbol === help
      send help
    else
      say help
    end
    return
  end

  if options[:help]
    show_help

  elsif arg
    show_command_help arg

  else
    say Gem::Command::HELP
  end
end