Module: Formulary Private

Extended by:
Cachable, Context, Utils::Output::Mixin
Includes:
Utils::Output::Mixin
Defined in:
formulary.rb

Overview

This module is part of a private API. This module may only be used in the Homebrew/brew repository. Third parties should avoid using this module if possible, as it may be removed or changed without warning.

The Formulary is responsible for creating instances of Formula. It is not meant to be used directly from formulae.

Defined Under Namespace

Classes: FormulaContentsLoader, FormulaJSONContentsLoader, FormulaLoader, FromAPILoader, FromBottleLoader, FromCacheLoader, FromKegLoader, FromNameLoader, FromPathLoader, FromTapLoader, FromURILoader, NullLoader

Class Method Summary collapse

Methods included from Context

current, current=, debug?, quiet?, verbose?, with_context

Methods included from Cachable

cache, clear_cache

Methods included from Utils::Output::Mixin

odebug, odeprecated, odie, odisabled, ofail, oh1, oh1_title, ohai, ohai_title, onoe, opoo, opoo_outside_github_actions, pretty_deprecated, pretty_disabled, pretty_duration, pretty_installed, pretty_outdated, pretty_uninstalled

Class Method Details

.canonical_name(ref) ⇒ String

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 1114

def self.canonical_name(ref)
  loader_for(ref).name
rescue TapFormulaAmbiguityError
  # If there are multiple tap formulae with the name of ref,
  # then ref is the canonical name
  ref.downcase
end

.class_s(name) ⇒ String

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 407

def self.class_s(name)
  class_name = name.capitalize
  class_name.gsub!(/[-_.\s]([a-zA-Z0-9])/) { T.must(Regexp.last_match(1)).upcase }
  class_name.tr!("+", "x")
  class_name.sub!(/(.)@(\d)/, "\\1AT\\2")
  class_name
end

.clear_cache ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'formulary.rb', line 89

def self.clear_cache
  platform_cache.each do |type, cached_objects|
    next if type == :formulary_factory

    cached_objects.each_value do |klass|
      class_name = klass.name

      # Already removed from namespace.
      next if class_name.nil?

      namespace = Utils.deconstantize(class_name)
      next if Utils.deconstantize(namespace) != name

      remove_const(Utils.demodulize(namespace).to_sym)
    end
  end

  super
end

.core_path(name) ⇒ Pathname

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 1200

def self.core_path(name)
  find_formula_in_tap(name.to_s.downcase, CoreTap.instance)
end

.enable_factory_cache! ⇒ void

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Enable the factory cache.



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# File 'formulary.rb', line 33

def self.enable_factory_cache!
  @factory_cache_enabled = T.let(true, T.nilable(TrueClass))
  cache[platform_cache_tag] ||= {}
  cache[platform_cache_tag][:formulary_factory] ||= {}
end

.ensure_utf8_encoding(io) ⇒ IO

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 402

def self.ensure_utf8_encoding(io)
  io.set_encoding(Encoding::UTF_8)
end

.factory(ref, spec = :stable, alias_path: nil, from: nil, warn: false, force_bottle: false, flags: [], ignore_errors: false) ⇒ Formula

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Return a Formula instance for the given reference. ref is a string containing:

  • a formula name
  • a formula pathname
  • a formula URL
  • a local bottle reference

Parameters:

  • ref (Pathname, String)
  • spec (Symbol) (defaults to: :stable)
  • alias_path (Pathname, String, nil) (defaults to: nil)
  • from (Symbol, nil) (defaults to: nil)
  • warn (Boolean) (defaults to: false)
  • force_bottle (Boolean) (defaults to: false)
  • flags (Array<String>) (defaults to: [])
  • ignore_errors (Boolean) (defaults to: false)

Returns:



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# File 'formulary.rb', line 939

def self.factory(
  ref,
  spec = :stable,
  alias_path: nil,
  from: nil,
  warn: false,
  force_bottle: false,
  flags: [],
  ignore_errors: false
)
  cache_key = "#{ref}-#{spec}-#{alias_path}-#{from}"
  return factory_cache.fetch(cache_key) if factory_cached? && factory_cache.key?(cache_key)

  loader = loader_for(ref, from:, warn:)
  formula = loader.get_formula(spec, alias_path:, force_bottle:, flags:, ignore_errors:)

  factory_cache[cache_key] ||= formula if factory_cached?

  formula
end

.factory_cache ⇒ Hash{String => Formula}

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'formulary.rb', line 63

def self.factory_cache
  cache[platform_cache_tag] ||= {}
  cache[platform_cache_tag][:formulary_factory] ||= {}
end

.factory_cached? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'formulary.rb', line 40

def self.factory_cached?
  !!@factory_cache_enabled
end

.find_formula_in_tap(name, tap) ⇒ Pathname

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 1205

def self.find_formula_in_tap(name, tap)
  filename = if name.end_with?(".rb")
    name
  else
    "#{name}.rb"
  end

  tap.formula_files_by_name.fetch(name, tap.formula_dir/filename)
end

.formula_class_defined_from_api?(name) ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:

  • (Boolean) 


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# File 'formulary.rb', line 74

def self.formula_class_defined_from_api?(name)
  platform_cache.key?(:api) && platform_cache.fetch(:api).key?(name)
end

.formula_class_defined_from_path?(path) ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:

  • (Boolean) 


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# File 'formulary.rb', line 69

def self.formula_class_defined_from_path?(path)
  platform_cache.key?(:path) && platform_cache.fetch(:path).key?(path.to_s)
end

.formula_class_get_from_api(name) ⇒ T.class_of(Formula)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 84

def self.formula_class_get_from_api(name)
  platform_cache.fetch(:api).fetch(name)
end

.formula_class_get_from_path(path) ⇒ T.class_of(Formula)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 79

def self.formula_class_get_from_path(path)
  platform_cache.fetch(:path).fetch(path.to_s)
end

.from_contents(name, path, contents, spec = :stable, alias_path: nil, force_bottle: false, flags: [], ignore_errors: false) ⇒ Formula

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Return a Formula instance directly from contents.

Parameters:

  • name (String)
  • path (Pathname)
  • contents (String)
  • spec (Symbol) (defaults to: :stable)
  • alias_path (Pathname, nil) (defaults to: nil)
  • force_bottle (Boolean) (defaults to: false)
  • flags (Array<String>) (defaults to: [])
  • ignore_errors (Boolean) (defaults to: false)

Returns:



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# File 'formulary.rb', line 1060

def self.from_contents(
  name,
  path,
  contents,
  spec = :stable,
  alias_path: nil,
  force_bottle: false,
  flags: [],
  ignore_errors: false
)
  FormulaContentsLoader.new(name, path, contents)
                       .get_formula(spec, alias_path:, force_bottle:, flags:, ignore_errors:)
end

.from_json_contents(name, contents, spec = :stable, alias_path: nil, force_bottle: false, flags: [], ignore_errors: false) ⇒ Formula

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Return a Formula instance directly from JSON contents.

Parameters:

  • name (String)
  • contents (Hash{String => T.untyped})
  • spec (Symbol) (defaults to: :stable)
  • alias_path (Pathname, nil) (defaults to: nil)
  • force_bottle (Boolean) (defaults to: false)
  • flags (Array<String>) (defaults to: [])
  • ignore_errors (Boolean) (defaults to: false)

Returns:



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# File 'formulary.rb', line 1086

def self.from_json_contents(
  name,
  contents,
  spec = :stable,
  alias_path: nil,
  force_bottle: false,
  flags: [],
  ignore_errors: false
)
  FormulaJSONContentsLoader.new(name, contents)
                           .get_formula(spec, alias_path:, force_bottle:, flags:, ignore_errors:)
end

.from_keg(keg, spec = nil, alias_path: nil, force_bottle: false, flags: []) ⇒ Formula

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Return a Formula instance for the given keg.

Parameters:

  • keg (Keg)
  • spec (Symbol, nil) (defaults to: nil)
  • alias_path (Pathname, String, nil) (defaults to: nil)
  • force_bottle (Boolean) (defaults to: false)
  • flags (Array<String>) (defaults to: [])

Returns:



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# File 'formulary.rb', line 1010

def self.from_keg(
  keg,
  spec = nil,
  alias_path: nil,
  force_bottle: false,
  flags: []
)
  tab = keg.tab
  tap = tab.tap
  spec ||= tab.spec

  formula_name = keg.rack.basename.to_s

  options = {
    alias_path:,
    from:         :keg,
    warn:         false,
    force_bottle:,
    flags:,
  }.compact

  f = if tap.nil?
    factory(formula_name, spec, **options)
  else
    begin
      factory("#{tap}/#{formula_name}", spec, **options)
    rescue FormulaUnavailableError
      # formula may be migrated to different tap. Try to search in core and all taps.
      factory(formula_name, spec, **options)
    end
  end
  f.build = tab
  T.cast(f.build, Tab).used_options = Tab.remap_deprecated_options(f.deprecated_options, tab.used_options).as_flags
  f.version.update_commit(keg.version.version.commit) if f.head? && keg.version.head?
  f
end

.from_rack(rack, spec = nil, alias_path: nil, force_bottle: false, flags: [], keg: Keg.from_rack(rack)) ⇒ Formula

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Return a Formula instance for the given rack.

Parameters:

  • rack (Pathname)
  • spec (Symbol, nil) (defaults to: nil) —

    when nil, will auto resolve the formula's spec.

  • alias_path (Pathname, String, nil) (defaults to: nil) —

    will be used if the formula is found not to be installed and discarded if it is installed because the alias_path used to install the formula will be set instead.

  • force_bottle (Boolean) (defaults to: false)
  • flags (Array<String>) (defaults to: [])
  • keg (Keg, nil) (defaults to: Keg.from_rack(rack))

Returns:



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# File 'formulary.rb', line 977

def self.from_rack(rack, spec = nil, alias_path: nil, force_bottle: false, flags: [], keg: Keg.from_rack(rack))
  options = {
    alias_path:,
    force_bottle:,
    flags:,
  }.compact

  if keg
    from_keg(keg, *spec, **options)
  else
    factory(rack.basename.to_s, *spec, from: :rack, warn: false, **options)
  end
end

.keg_only?(rack) ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Return whether given rack is keg-only.

Parameters:

Returns:

  • (Boolean) 


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# File 'formulary.rb', line 993

def self.keg_only?(rack)
  Formulary.from_rack(rack).keg_only?
rescue FormulaUnavailableError, TapFormulaAmbiguityError
  false
end

.load_formula(name, path, contents, namespace, flags:, ignore_errors:) ⇒ T.class_of(Formula)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 119

def self.load_formula(name, path, contents, namespace, flags:, ignore_errors:)
  raise "Formula loading disabled by `$HOMEBREW_DISABLE_LOAD_FORMULA`!" if Homebrew::EnvConfig.disable_load_formula?

  require "formula"
  require "ignorable"
  require "stringio"

  # Capture stdout to prevent formulae from printing to stdout unexpectedly.
  old_stdout = $stdout
  $stdout = StringIO.new

  mod = Module.new
  namespace = namespace.to_sym
  remove_const(namespace) if const_defined?(namespace)
  const_set(namespace, mod)

  eval_formula = lambda do
    # Set `BUILD_FLAGS` in the formula's namespace so we can
    # access them from within the formula's class scope.
    mod.const_set(:BUILD_FLAGS, flags)
    mod.module_eval(contents, path.to_s)
  rescue NameError, ArgumentError, ScriptError, MethodDeprecatedError, MacOSVersion::Error => e
    if e.is_a?(Ignorable::ExceptionMixin)
      e.ignore
    else
      remove_const(namespace)
      raise FormulaUnreadableError.new(name, e)
    end
  end
  if ignore_errors
    Ignorable.hook_raise(&eval_formula)
  else
    eval_formula.call
  end

  class_name = class_s(name)

  begin
    mod.const_get(class_name)
  rescue NameError => e
    class_list = mod.constants
                    .map { |const_name| mod.const_get(const_name) }
                    .grep(Class)
    new_exception = FormulaClassUnavailableError.new(name, path, class_name, class_list)
    remove_const(namespace)
    raise new_exception, "", e.backtrace
  end
ensure
  # TODO: Make printing to stdout an error so that we can print a tap name.
  #       See discussion at https://github.com/Homebrew/brew/pull/20226#discussion_r2195886888
  if (printed_to_stdout = $stdout.string.strip.presence)
    opoo <<~WARNING
      Formula #{name} attempted to print the following while being loaded:
      #{printed_to_stdout}
    WARNING
  end
  $stdout = old_stdout
end

.load_formula_from_path(name, path, flags:, ignore_errors:) ⇒ T.class_of(Formula)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 196

def self.load_formula_from_path(name, path, flags:, ignore_errors:)
  contents = path.open("r") { |f| ensure_utf8_encoding(f).read }
  namespace = "FormulaNamespace#{namespace_key(path.to_s)}"
  klass = load_formula(name, path, contents, namespace, flags:, ignore_errors:)
  platform_cache[:path] ||= {}
  platform_cache.fetch(:path)[path.to_s] = klass
end

.load_formula_from_struct!(name, formula_struct, api_source:, tap_git_head:, flags:) ⇒ T.class_of(Formula)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 213

def self.load_formula_from_struct!(name, formula_struct, api_source:, tap_git_head:, flags:)
  namespace = :"FormulaNamespaceAPI#{namespace_key(api_source.to_json)}"

  mod = Module.new
  remove_const(namespace) if const_defined?(namespace)
  const_set(namespace, mod)

  mod.const_set(:BUILD_FLAGS, flags)

  class_name = class_s(name)
  ruby_source_path = "Formula/#{CoreTap.instance.new_formula_subdirectory(name)}/#{name.downcase}.rb"

  klass = Class.new(::Formula) do
    @loaded_from_api = T.let(true, T.nilable(T::Boolean))
    @api_source = T.let(api_source, T.nilable(T::Hash[String, T.untyped]))

    desc formula_struct.desc
    homepage formula_struct.homepage
    license formula_struct.license
    revision formula_struct.revision
    version_scheme formula_struct.version_scheme

    if formula_struct.stable?
      stable do
        url(*formula_struct.stable_url_args)
        version formula_struct.stable_version
        if (checksum = formula_struct.stable_checksum)
          sha256 checksum
        end

        formula_struct.stable_dependencies.each do |dep|
          depends_on dep
        end

        formula_struct.stable_uses_from_macos.each do |args|
          uses_from_macos(*args)
        end
      end
    end

    if formula_struct.head?
      head do
        url(*formula_struct.head_url_args)

        formula_struct.head_dependencies.each do |dep|
          depends_on dep
        end

        formula_struct.head_uses_from_macos.each do |args|
          uses_from_macos(*args)
        end
      end
    end

    no_autobump!(**formula_struct.no_autobump_args) if formula_struct.no_autobump?

    if formula_struct.bottle?
      bottle do
        if Homebrew::EnvConfig.bottle_domain == HOMEBREW_BOTTLE_DEFAULT_DOMAIN
          root_url HOMEBREW_BOTTLE_DEFAULT_DOMAIN
        else
          root_url Homebrew::EnvConfig.bottle_domain
        end
        rebuild formula_struct.bottle_rebuild
        formula_struct.bottle_checksums.each do |args|
          sha256(**args)
        end
      end
    end

    pour_bottle?(**formula_struct.pour_bottle_args) if formula_struct.pour_bottle?

    keg_only(*formula_struct.keg_only_args) if formula_struct.keg_only?

    deprecate!(**formula_struct.deprecate_args) if formula_struct.deprecate?
    disable!(**formula_struct.disable_args) if formula_struct.disable?

    formula_struct.conflicts.each do |name, args|
      conflicts_with(name, **args)
    end

    formula_struct.link_overwrite_paths.each do |path|
      link_overwrite path
    end

    define_method(:install) do
      raise NotImplementedError, "Cannot build from source from abstract formula."
    end

    @post_install_defined_boolean = T.let(formula_struct.post_install_defined, T.nilable(T::Boolean))
    define_method(:post_install_defined?) do
      self.class.instance_variable_get(:@post_install_defined_boolean)
    end

    if formula_struct.service?
      service do
        run(*formula_struct.service_run_args, **formula_struct.service_run_kwargs) if formula_struct.service_run?
        name(**formula_struct.service_name_args) if formula_struct.service_name?

        formula_struct.service_args.each do |key, arg|
          public_send(key, arg)
        end
      end
    end

    @caveats_string = T.let(formula_struct.caveats, T.nilable(String))
    define_method(:caveats) do
      self.class.instance_variable_get(:@caveats_string)
    end

    @tap_git_head_string = T.let(tap_git_head, T.nilable(String))
    define_method(:tap_git_head) do
      self.class.instance_variable_get(:@tap_git_head_string)
    end

    @oldnames_array = T.let(formula_struct.oldnames, T.nilable(T::Array[String]))
    define_method(:oldnames) do
      self.class.instance_variable_get(:@oldnames_array)
    end

    @aliases_array = T.let(formula_struct.aliases, T.nilable(T::Array[String]))
    define_method(:aliases) do
      self.class.instance_variable_get(:@aliases_array)
    end

    @versioned_formulae_array = T.let(formula_struct.versioned_formulae, T.nilable(T::Array[String]))
    define_method(:versioned_formulae_names) do
      self.class.instance_variable_get(:@versioned_formulae_array)
    end

    @ruby_source_path_string = T.let(ruby_source_path, T.nilable(String))
    define_method(:ruby_source_path) do
      self.class.instance_variable_get(:@ruby_source_path_string)
    end

    @ruby_source_checksum_string = T.let(formula_struct.ruby_source_checksum, T.nilable(String))
    define_method(:ruby_source_checksum) do
      checksum = self.class.instance_variable_get(:@ruby_source_checksum_string)
      Checksum.new(checksum) if checksum
    end
  end

  mod.const_set(class_name, klass)

  platform_cache[:api] ||= {}
  platform_cache.fetch(:api)[name] = klass
end

.loader_for(ref, from: nil, warn: true) ⇒ FormulaLoader

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 1179

def self.loader_for(ref, from: nil, warn: true)
  [
    FromBottleLoader,
    FromURILoader,
    FromAPILoader,
    FromTapLoader,
    FromPathLoader,
    FromNameLoader,
    FromKegLoader,
    FromCacheLoader,
  ].each do |loader_class|
    if (loader = loader_class.try_new(ref, from:, warn:))
      $stderr.puts "#{$PROGRAM_NAME} (#{loader_class}): loading #{ref}" if verbose? && debug?
      return loader
    end
  end

  NullLoader.new(ref)
end

.namespace_key(identifier) ⇒ String

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 179

def self.namespace_key(identifier)
  Digest::SHA2.hexdigest(
    "#{Homebrew::SimulateSystem.current_os}_#{Homebrew::SimulateSystem.current_arch}:#{identifier}",
  )
end

.path(ref) ⇒ Pathname

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 1123

def self.path(ref)
  loader_for(ref).path
end

.platform_cache ⇒ Hash

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'formulary.rb', line 58

def self.platform_cache
  cache[platform_cache_tag] ||= {}
end

.replace_placeholders(string) ⇒ String

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 186

def self.replace_placeholders(string)
  string.gsub(HOMEBREW_PREFIX_PLACEHOLDER, HOMEBREW_PREFIX)
        .gsub(HOMEBREW_CELLAR_PLACEHOLDER, HOMEBREW_CELLAR)
        .gsub(HOMEBREW_HOME_PLACEHOLDER, Dir.home)
end

.resolve(name, spec: nil, force_bottle: false, flags: []) ⇒ Formula

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

  • name (String)
  • spec (Symbol, nil) (defaults to: nil)
  • force_bottle (Boolean) (defaults to: false)
  • flags (Array<String>) (defaults to: [])

Returns:



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# File 'formulary.rb', line 364

def self.resolve(
  name,
  spec: nil,
  force_bottle: false,
  flags: []
)
  if name.include?("/") || File.exist?(name)
    f = factory(name, *spec, force_bottle:, flags:)
    if f.any_version_installed?
      tab = Tab.for_formula(f)
      resolved_spec = spec || tab.spec
      f.active_spec = resolved_spec if f.send(resolved_spec)
      f.build = tab
      if f.head? && tab.tabfile
        k = Keg.new(tab.tabfile.parent)
        f.version.update_commit(k.version.version.commit) if k.version.head?
      end
    end
  else
    rack = to_rack(name)
    alias_path = factory(name, force_bottle:, flags:).alias_path
    f = from_rack(rack, *spec, alias_path:, force_bottle:, flags:)
  end

  # If this formula was installed with an alias that has since changed,
  # then it was specified explicitly in ARGV. (Using the alias would
  # instead have found the new formula.)
  #
  # Because of this, the user is referring to this specific formula,
  # not any formula targeted by the same alias, so in this context
  # the formula shouldn't be considered outdated if the alias used to
  # install it has changed.
  f.follow_installed_alias = false

  f
end

.tap_formula_name_type(tapped_name, warn:) ⇒ Array<(String, Tap, [Symbol, nil])>?

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

  • tapped_name (String)
  • warn (Boolean)

Returns:



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# File 'formulary.rb', line 1128

def self.tap_formula_name_type(tapped_name, warn:)
  return unless (tap_with_name = Tap.with_formula_name(tapped_name))

  tap, name = tap_with_name

  type = nil

  # FIXME: Remove the need to do this here.
  alias_table_key = tap.core_tap? ? name : "#{tap}/#{name}"

  if (possible_alias = tap.alias_table[alias_table_key].presence)
    # FIXME: Remove the need to split the name and instead make
    #        the alias table only contain short names.
    name = possible_alias.split("/").fetch(-1)
    type = :alias
  elsif (new_name = tap.formula_renames[name].presence)
    old_name = tap.core_tap? ? name : tapped_name
    name = new_name
    new_name = tap.core_tap? ? name : "#{tap}/#{name}"
    type = :rename
  elsif (new_tap_name = tap.tap_migrations[name].presence)
    new_tap, new_name = Tap.with_formula_name(new_tap_name)
    unless new_tap
      if new_tap_name.include?("/")
        new_tap = Tap.fetch(new_tap_name)
        new_name = name
      else
        new_tap = tap
        new_name = new_tap_name
      end
    end
    new_tap.ensure_installed!
    new_tapped_name = "#{new_tap}/#{new_name}"

    if tapped_name != new_tapped_name
      old_name = tap.core_tap? ? name : tapped_name
      return unless (name_tap_type = tap_formula_name_type(new_tapped_name, warn: false))

      name, tap, = name_tap_type

      new_name = new_tap.core_tap? ? name : "#{tap}/#{name}"
      type = :migration
    end
  end

  opoo "Formula #{old_name} was renamed to #{new_name}." if warn && old_name && new_name

  [name, tap, type]
end

.to_rack(ref) ⇒ Pathname

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'formulary.rb', line 1100

def self.to_rack(ref)
  # If using a fully-scoped reference, check if the formula can be resolved.
  factory(ref) if ref.include? "/"

  # Check whether the rack with the given name exists.
  if (rack = HOMEBREW_CELLAR/File.basename(ref, ".rb")).directory?
    return rack.resolved_path
  end

  # Use canonical name to locate rack.
  (HOMEBREW_CELLAR/canonical_name(ref)).resolved_path
end