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, FormulaStubLoader, 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_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 1381

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 585

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 104

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

.convert_to_string_or_symbol(string) ⇒ String, Symbol

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 594

def self.convert_to_string_or_symbol(string)
  return T.must(string[1..]).to_sym if string.start_with?(":")

  string
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 1467

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 37

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:

  • io (IO)

Returns:

  • (IO) 


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# File 'formulary.rb', line 580

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, prefer_stub: 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)
  • prefer_stub (Boolean) (defaults to: false)

Returns:



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# File 'formulary.rb', line 1152

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

  loader = FormulaStubLoader.try_new(ref, from:, warn:) if prefer_stub
  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 68

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 44

def self.factory_cached?
  !!@factory_cache_enabled
end

.factory_stub(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.

Note:

this method returns a stubbed formula which will include only:

A shortcut for calling factory with prefer_stub: true.

  • name
  • version
  • revision
  • version_scheme
  • bottle information (for the current OS's bottle, only)
  • aliases
  • oldnames
  • any other data that can be computed using only this information

Only use the output for operations that do not require full formula data.

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:

See Also:



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# File 'formulary.rb', line 1204

def self.factory_stub(
  ref,
  spec = :stable,
  alias_path: nil,
  from: nil,
  warn: false,
  force_bottle: false,
  flags: [],
  ignore_errors: false
)
  factory(ref, spec, alias_path:, from:, warn:, force_bottle:, flags:, ignore_errors:, prefer_stub: true)
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 1472

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 79

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 74

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

.formula_class_defined_from_stub?(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 84

def self.formula_class_defined_from_stub?(name)
  platform_cache.key?(:stub) && platform_cache.fetch(:stub).key?(name)
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 94

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 89

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

.formula_class_get_from_stub(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 99

def self.formula_class_get_from_stub(name)
  platform_cache.fetch(:stub).fetch(name)
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 1327

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 1353

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 1269

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 Homebrew::EnvConfig.use_internal_api? && (loader = FromKegLoader.try_new(keg.name, warn: false))
    begin
      loader.get_formula(spec, alias_path:, force_bottle:, flags:, ignore_errors: true)
    rescue FormulaUnreadableError
      nil
    end
  end

  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: []) ⇒ 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: [])

Returns:



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# File 'formulary.rb', line 1233

def self.from_rack(rack, spec = nil, alias_path: nil, force_bottle: false, flags: [])
  kegs = rack.directory? ? rack.subdirs.map { |d| Keg.new(d) } : []
  keg = kegs.find(&:linked?) || kegs.find(&:optlinked?) || kegs.max_by(&:scheme_and_version)

  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 1252

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 134

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_json!(name, json_formula_with_variations, 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 220

def self.load_formula_from_json!(name, json_formula_with_variations, flags:)
  namespace = :"FormulaNamespaceAPI#{namespace_key(json_formula_with_variations.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)
  json_formula = Homebrew::API.merge_variations(json_formula_with_variations)

  caveats_string = (replace_placeholders(json_formula["caveats"]) if json_formula["caveats"])

  uses_from_macos_names = json_formula.fetch("uses_from_macos", []).map do |dep|
    next dep unless dep.is_a? Hash

    dep.keys.first
  end

  requirements = {}
  json_formula["requirements"]&.map do |req|
    req_name = req["name"].to_sym
    next if API_SUPPORTED_REQUIREMENTS.exclude?(req_name)

    req_version = case req_name
    when :arch
      req["version"]&.to_sym
    when :macos, :maximum_macos
      MacOSVersion::SYMBOLS.key(req["version"])
    else
      req["version"]
    end

    req_tags = []
    req_tags << req_version if req_version.present?
    req_tags += req["contexts"]&.map do |tag|
      case tag
      when String
        tag.to_sym
      when Hash
        tag.deep_transform_keys(&:to_sym)
      else
        tag
      end
    end

    spec_hash = req_tags.empty? ? req_name : { req_name => req_tags }

    specs = req["specs"]
    specs ||= ["stable", "head"] # backwards compatibility
    specs.each do |spec|
      requirements[spec.to_sym] ||= []
      requirements[spec.to_sym] << spec_hash
    end
  end

  add_deps = lambda do |spec|
    T.bind(self, SoftwareSpec)

    dep_json = json_formula.fetch("#{spec}_dependencies", json_formula)

    dep_json["dependencies"]&.each do |dep|
      # Backwards compatibility check - uses_from_macos used to be a part of dependencies on Linux
      next if !json_formula.key?("uses_from_macos_bounds") && uses_from_macos_names.include?(dep) &&
              !Homebrew::SimulateSystem.simulating_or_running_on_macos?

      depends_on dep
    end

    [:build, :test, :recommended, :optional].each do |type|
      dep_json["#{type}_dependencies"]&.each do |dep|
        # Backwards compatibility check - uses_from_macos used to be a part of dependencies on Linux
        next if !json_formula.key?("uses_from_macos_bounds") && uses_from_macos_names.include?(dep) &&
                !Homebrew::SimulateSystem.simulating_or_running_on_macos?

        depends_on dep => type
      end
    end

    dep_json["uses_from_macos"]&.each_with_index do |dep, index|
      bounds = dep_json.fetch("uses_from_macos_bounds", [])[index].dup || {}
      bounds.deep_transform_keys!(&:to_sym)
      bounds.deep_transform_values!(&:to_sym)

      if dep.is_a?(Hash)
        uses_from_macos dep.deep_transform_values(&:to_sym).merge(bounds)
      else
        uses_from_macos dep, bounds
      end
    end
  end

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

    desc json_formula["desc"]
    homepage json_formula["homepage"]
    license SPDX.string_to_license_expression(json_formula["license"])
    revision json_formula.fetch("revision", 0)
    version_scheme json_formula.fetch("version_scheme", 0)

    if (urls_stable = json_formula["urls"]["stable"].presence)
      stable do
        url_spec = {
          tag:      urls_stable["tag"],
          revision: urls_stable["revision"],
          using:    urls_stable["using"]&.to_sym,
        }.compact
        url urls_stable["url"], **url_spec
        version json_formula["versions"]["stable"]
        sha256 urls_stable["checksum"] if urls_stable["checksum"].present?

        instance_exec(:stable, &add_deps)
        requirements[:stable]&.each do |req|
          depends_on req
        end
      end
    end

    if (urls_head = json_formula["urls"]["head"].presence)
      head do
        url_spec = {
          branch: urls_head["branch"],
          using:  urls_head["using"]&.to_sym,
        }.compact
        url urls_head["url"], **url_spec

        instance_exec(:head, &add_deps)
        requirements[:head]&.each do |req|
          depends_on req
        end
      end
    end

    if (because = json_formula["no_autobump_msg"])
      because = because.to_sym if NO_AUTOBUMP_REASONS_LIST.key?(because.to_sym)
      no_autobump!(because:)
    end

    bottles_stable = json_formula["bottle"]["stable"].presence

    if bottles_stable
      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 bottles_stable["rebuild"]
        bottles_stable["files"].each do |tag, bottle_spec|
          cellar = Formulary.convert_to_string_or_symbol bottle_spec["cellar"]
          sha256 cellar:, tag.to_sym => bottle_spec["sha256"]
        end
      end
    end

    if (pour_bottle_only_if = json_formula["pour_bottle_only_if"])
      pour_bottle? only_if: pour_bottle_only_if.to_sym
    end

    if (keg_only_reason = json_formula["keg_only_reason"].presence)
      reason = Formulary.convert_to_string_or_symbol keg_only_reason["reason"]
      keg_only reason, keg_only_reason["explanation"]
    end

    if (deprecation_date = json_formula["deprecation_date"].presence)
      reason = DeprecateDisable.to_reason_string_or_symbol json_formula["deprecation_reason"], type: :formula
      replacement_formula = json_formula["deprecation_replacement_formula"]
      replacement_cask = json_formula["deprecation_replacement_cask"]
      deprecate! date: deprecation_date, because: reason, replacement_formula:, replacement_cask:
    end

    if (disable_date = json_formula["disable_date"].presence)
      reason = DeprecateDisable.to_reason_string_or_symbol json_formula["disable_reason"], type: :formula
      replacement_formula = json_formula["disable_replacement_formula"]
      replacement_cask = json_formula["disable_replacement_cask"]
      disable! date: disable_date, because: reason, replacement_formula:, replacement_cask:
    end

    json_formula["conflicts_with"]&.each_with_index do |conflict, index|
      conflicts_with conflict, because: json_formula.dig("conflicts_with_reasons", index)
    end

    json_formula["link_overwrite"]&.each do |overwrite_path|
      link_overwrite overwrite_path
    end

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

    @post_install_defined_boolean = T.let(json_formula["post_install_defined"], T.nilable(T::Boolean))
    @post_install_defined_boolean = true if @post_install_defined_boolean.nil? # Backwards compatibility
    define_method(:post_install_defined?) do
      self.class.instance_variable_get(:@post_install_defined_boolean)
    end

    if (service_hash = json_formula["service"].presence)
      service_hash = Homebrew::Service.from_hash(service_hash)
      service do
        T.bind(self, Homebrew::Service)

        if (run_params = service_hash.delete(:run).presence)
          case run_params
          when Hash
            run(**run_params)
          when Array, String
            run run_params
          end
        end

        if (name_params = service_hash.delete(:name).presence)
          name(**name_params)
        end

        service_hash.each do |key, arg|
          public_send(key, arg)
        end
      end
    end

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

    @tap_git_head_string = T.let(json_formula["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(json_formula["oldnames"] || [json_formula["oldname"]].compact, T.nilable(T::Array[String]))
    define_method(:oldnames) do
      self.class.instance_variable_get(:@oldnames_array)
    end

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

    @versioned_formulae_array = T.let(json_formula.fetch("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(json_formula["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(json_formula.dig("ruby_source_checksum", "sha256"), T.nilable(String))
    @ruby_source_checksum_string ||= json_formula["ruby_source_sha256"]
    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

.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 211

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_stub!(name, formula_stub, 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 488

def self.load_formula_from_stub!(name, formula_stub, flags:)
  namespace = :"FormulaNamespaceStub#{namespace_key(formula_stub.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)

  klass = Class.new(::Formula) do
    @loaded_from_api = T.let(true, T.nilable(T::Boolean))
    @loaded_from_stub = T.let(true, T.nilable(T::Boolean))

    url "formula-stub://#{name}/#{formula_stub.pkg_version}"
    version formula_stub.version.to_s
    revision formula_stub.revision

    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_stub.rebuild
      sha256 Utils::Bottles.tag.to_sym => formula_stub.sha256
    end

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

    @aliases_array = formula_stub.aliases
    define_method(:aliases) do
      self.class.instance_variable_get(:@aliases_array)
    end

    @oldnames_array = formula_stub.oldnames
    define_method(:oldnames) do
      self.class.instance_variable_get(:@oldnames_array)
    end
  end

  mod.const_set(class_name, klass)

  platform_cache[:stub] ||= {}
  platform_cache.fetch(:stub)[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 1446

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 194

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 1390

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 63

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 201

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: [], prefer_stub: 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.

Parameters:

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

Returns:



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# File 'formulary.rb', line 541

def self.resolve(
  name,
  spec: nil,
  force_bottle: false,
  flags: [],
  prefer_stub: false
)
  if name.include?("/") || File.exist?(name)
    f = factory(name, *spec, force_bottle:, flags:, prefer_stub:)
    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_stub(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 1395

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 1367

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