class RSpec::Core::RakeTask

def file_inclusion_specification
  if ENV['SPEC']
    FileList[ ENV['SPEC']].sort
  elsif File.exist?(pattern)
    # The provided pattern is a directory or a file, not a file glob. Historically, this
    # worked because `FileList[some_dir]` would return `[some_dir]` which would
    # get passed to `rspec` and cause it to load files under that dir that match
    # the default pattern. To continue working, we need to pass it on to `rspec`
    # directly rather than treating it as a `--pattern` option.
    #
    # TODO: consider deprecating support for this and removing it in RSpec 4.
    pattern.shellescape
  else
    "--pattern #{pattern.shellescape}"
  end
end