Module: Rake::Typo

Defined in:
lib/rake/typo.rb

Class Method Summary collapse

Class Method Details

.candidate_tasks(task_name, tasks) ⇒ Object

Finds the Rake::Task instances in tasks that are most similar to task_name and returns a list of them, ordered by name.



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# File 'lib/rake/typo.rb', line 9

def self.candidate_tasks(task_name, tasks)
  best_similarity = nil

  distances = tasks.map do |t|
    similarity = RubyFish::DamerauLevenshtein.distance(task_name, t.to_s)

    # start off with the first distance count we find to be the best
    best_similarity ||= similarity

    # seek the lowest we can
    best_similarity = similarity if similarity < best_similarity

    [similarity, t]
  end

  distances.select! { |sim, name| sim == best_similarity }
  distances.sort_by! { |sim, task| task.name }
  distances.map { |sim, task| task }
end