parent_paths

Handy methods for scanning parent paths.

Installation

Include parent_paths in your Gemfile, or call gem install parent_paths.

ParentPaths module

scan(start = nil, &criteria)

From the given starting path, scan upward through the file hierachy until a particular criteria is met. The criteria is determined by a block that receives the path of the next directory in the hierarchy.

If a starting path is not provided, it is assumed to be the path of the file that calls this method.

# Find the first ancestor directory of the current file to contain more than 5
# files
ParentPaths.scan do |path|
  Dir.glob(path + '*').size > 5
end

scan_for_owner(filename, start = nil)

From the given starting path, scan upward through the file hierachy until a particular filename is discovered.

If a starting path is not provided, it is assumed to be the path of the file that calls this method.

# Find the first ancestor directory of the current file that contains a
# particular filename.
ParentPaths.scan_for_owner('Gemfile')