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path: root/Library/Homebrew/cask/lib/hbc/source/tapped.rb
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class Hbc::Source::Tapped
  def self.me?(query)
    path_for_query(query).exist?
  end

  def self.path_for_query(query)
    # Repeating Hbc.all_tokens is very slow for operations such as
    # brew cask list, but memoizing the value might cause breakage
    # elsewhere, given that installation and tap status is permitted
    # to change during the course of an invocation.
    token_with_tap = Hbc.all_tokens.find { |t| t.split("/").last == query.sub(%r{\.rb$}i, "") }
    if token_with_tap
      user, repo, token = token_with_tap.split("/")
      Tap.fetch(user, repo).cask_dir.join("#{token}.rb")
    else
      Hbc.default_tap.cask_dir.join(query.sub(%r{(\.rb)?$}i, ".rb"))
    end
  end

  attr_reader :token

  def initialize(token)
    @token = token
  end

  def load
    path = self.class.path_for_query(token)
    Hbc::Source::PathSlashOptional.new(path).load
  end

  def to_s
    # stringify to fully-resolved location
    self.class.path_for_query(token).expand_path.to_s
  end
end