Class Gem::Commands::UninstallCommand < Gem::Command

# File ../ruby/lib/rubygems/commands/uninstall_command.rb, line 14
def initialize
  super 'uninstall', 'Uninstall gems from the local repository',
        :version => Gem::Requirement.default, :user_install => true

  add_option('-a', '--[no-]all',
    'Uninstall all matching versions'
    ) do |value, options|
    options[:all] = value
  end

  add_option('-I', '--[no-]ignore-dependencies',
             'Ignore dependency requirements while',
             'uninstalling') do |value, options|
    options[:ignore] = value
  end

  add_option('-x', '--[no-]executables',
               'Uninstall applicable executables without',
               'confirmation') do |value, options|
    options[:executables] = value
  end

  add_option('-i', '--install-dir DIR',
             'Directory to uninstall gem from') do |value, options|
    options[:install_dir] = File.expand_path(value)
  end

  add_option('-n', '--bindir DIR',
             'Directory to remove binaries from') do |value, options|
    options[:bin_dir] = File.expand_path(value)
  end

  add_option('--[no-]user-install',
             'Uninstall from user\s home directory',
             'in addition to GEM_HOME.') do |value, options|
    options[:user_install] = value
  end

  add_option('--[no-]format-executable',
             'Assume executable names match Ruby\s prefix and suffix.') do |value, options|
    options[:format_executable] = value
  end

  add_version_option
  add_platform_option
end

# File ../ruby/lib/rubygems/commands/uninstall_command.rb, line 75
def execute
  original_path = Gem.path

  get_all_gem_names.each do |gem_name|
    begin
      Gem::Uninstaller.new(gem_name, options).uninstall
    rescue Gem::InstallError => e
      alert e.message
    rescue Gem::GemNotInHomeException => e
      spec = e.spec
      alert("In order to remove #{spec.name}, please execute:\n"                "\tgem uninstall #{spec.name} --install-dir=#{spec.installation_path}")
    ensure
      Gem.use_paths(*original_path)
    end
  end
end