Module: RuboCop::PathUtil

Overview

Common methods and behaviors for dealing with paths.

Class Method Summary collapse

Class Method Details

.hidden?(path_component) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rubocop/path_util.rb', line 54

def hidden?(path_component)
  path_component =~ /^\.[^.]/
end

.issue_deprecation_warning(basename, pattern, config_path) ⇒ Object


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# File 'lib/rubocop/path_util.rb', line 44

def issue_deprecation_warning(basename, pattern, config_path)
  instruction = if basename == pattern
                  ". Change to '**/#{pattern}'."
                elsif pattern.end_with?('**')
                  ". Change to '#{pattern}/*'."
                end
  warn("Warning: Deprecated pattern style '#{pattern}' in " \
       "#{config_path}#{instruction}")
end

.match_path?(pattern, path, config_path) ⇒ Boolean

TODO: The old way of matching patterns is flawed, so a new one has been introduced. We keep supporting the old way for a while and issue deprecation warnings when a pattern is used that produced a match with the old way but doesn't match with the new.

Returns:

  • (Boolean)

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# File 'lib/rubocop/path_util.rb', line 21

def match_path?(pattern, path, config_path)
  case pattern
  when String
    basename = File.basename(path)
    old_match = basename == pattern || File.fnmatch?(pattern, path)
    new_match = File.fnmatch?(pattern, path, File::FNM_PATHNAME)
    if old_match && !new_match
      # Patterns like dir/**/* will produce an old match for files
      # beginning with dot, but not a new match. That's a special case,
      # though. Not what we want to handle here. And this is a match that
      # we overrule. Only patterns like dir/**/.* can be used to match dot
      # files. Hidden directories (starting with a dot) will also produce
      # an old match, just like hidden files.
      return false if path.split(File::SEPARATOR).any? { |s| hidden?(s) }

      issue_deprecation_warning(basename, pattern, config_path)
    end
    old_match || new_match
  when Regexp
    path =~ pattern
  end
end

.relative_path(path, base_dir = Dir.pwd) ⇒ Object


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# File 'lib/rubocop/path_util.rb', line 8

def relative_path(path, base_dir = Dir.pwd)
  # Optimization for the common case where path begins with the base
  # dir. Just cut off the first part.
  return path[(base_dir.length + 1)..-1] if path.start_with?(base_dir)

  path_name = Pathname.new(File.expand_path(path))
  path_name.relative_path_from(Pathname.new(base_dir)).to_s
end