class Thor::Runner

def install(name)
  initialize_thorfiles
  # If a directory name is provided as the argument, look for a 'main.thor' 
  # task in said directory.
  begin
    if File.directory?(File.expand_path(name))
      base, package = File.join(name, "main.thor"), :directory
      contents      = open(base).read
    else
      base, package = name, :file
      contents      = open(name).read
    end
  rescue OpenURI::HTTPError
    raise Error, "Error opening URI '#{name}'"
  rescue Errno::ENOENT
    raise Error, "Error opening file '#{name}'"
  end
  say "Your Thorfile contains:"
  say contents
  return false if no?("Do you wish to continue [y/N]?")
  as = options["as"] || begin
    first_line = contents.split("\n")[0]
    (match = first_line.match(/\s*#\s*module:\s*([^\n]*)/)) ? match[1].strip : nil
  end
  unless as
    basename = File.basename(name)
    as = ask("Please specify a name for #{name} in the system repository [#{basename}]:")
    as = basename if as.empty?
  end
  location = if options[:relative] || name =~ /^http:\/\//
    name
  else
    File.expand_path(name)
  end
  thor_yaml[as] = {
    :filename   => Digest::MD5.hexdigest(name + as),
    :location   => location,
    :namespaces => Thor::Util.namespaces_in_content(contents, base)
  }
  save_yaml(thor_yaml)
  say "Storing thor file in your system repository"
  destination = File.join(thor_root, thor_yaml[as][:filename])
  if package == :file
    File.open(destination, "w") { |f| f.puts contents }
  else
    FileUtils.cp_r(name, destination)
  end
  thor_yaml[as][:filename] # Indicate success
end