Listens to filesystem modifications on a either single directory or multiple directories.
@param (see Listen::Listener#new) @param (see Listen::MultiListener#new)
@yield [modified, added, removed] the changed files @yieldparam [Array<String>] modified the list of modified files @yieldparam [Array<String>] added the list of added files @yieldparam [Array<String>] removed the list of removed files
@return [Listen::Listener] the file listener if no block given
# File lib/listen.rb, line 28 def self.to(*args, &block) listener = if args.length == 1 || ! args[1].is_a?(String) Listener.new(*args, &block) else MultiListener.new(*args, &block) end block ? listener.start : listener end