Contents

module Todoloo
  module Helpers
    extend self
    # Returns an `Enumerator` over the paths that match `pattern`
    #
    # TODO We need to optimize how we traverse the file-system so that we can short-circuit the excludes instead
    #      of only filtering after finding them.
    #
    # TODO Optimize the seen_path handling
    #
    # @pattern [String, Array<String>]
    #   The file paths to glob
    #
    # @excludes [Array<String>]
    #   Optional list of file globs to exclude from the enumeration
    #
    # @return [Enumerator<String>]
    def glob_paths(pattern, excludes: [])
      seen_paths = Set.new

      Enumerator.new do |y|
        Dir[*Array(pattern)].lazy.each do |path|
          if !(seen_paths.include?(path) || excludes.any? { |e| File.fnmatch(e, path) })
            y << path
          end

          seen_paths << path
        end
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
todoloo-0.0.4	lib/todoloo/helpers.rb