Module: Formulary Private

Extended by:
Cachable, T::Sig
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: AliasLoader, BottleLoader, FormulaContentsLoader, FormulaLoader, FromPathLoader, FromUrlLoader, NullLoader, TapLoader

Constant Summary collapse

URL_START_REGEX =

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

%r{(https?|ftp|file)://}.freeze

Class Method Summary collapse

Methods included from Cachable

cache, clear_cache

Class Method Details

.canonical_name(ref) ⇒ Object

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. 



489
490
491
492
493
494
495
 
# File 'formulary.rb', line 489

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) ⇒ Object

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. 



150
151
152
153
154
155
156
 
# File 'formulary.rb', line 150

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

.clear_cache ⇒ Object

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. 



37
38
39
40
41
42
43
44
45
46
47
48
 
# File 'formulary.rb', line 37

def self.clear_cache
  cache.each do |key, klass|
    next if key == :formulary_factory

    namespace = klass.name.deconstantize
    next if namespace.deconstantize != name

    remove_const(namespace.demodulize)
  end

  super
end

.core_path(name) ⇒ Object

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. 



555
556
557
 
# File 'formulary.rb', line 555

def self.core_path(name)
  CoreTap.instance.formula_dir/"#{name.to_s.downcase}.rb"
end

.enable_factory_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.



21
22
23
 
# File 'formulary.rb', line 21

def self.enable_factory_cache!
  @factory_cache = true
end

.ensure_utf8_encoding(io) ⇒ Object

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. 



146
147
148
 
# File 'formulary.rb', line 146

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

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

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 reference. ref is a string containing:

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

Raises:

  • (ArgumentError) 


392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
 
# File 'formulary.rb', line 392

def self.factory(
  ref, spec = :stable, alias_path: nil, from: nil,
  force_bottle: false, flags: [], ignore_errors: false
)
  raise ArgumentError, "Formulae must have a ref!" unless ref

  cache_key = "#{ref}-#{spec}-#{alias_path}-#{from}"
  if factory_cached? && cache[:formulary_factory] &&
     cache[:formulary_factory][cache_key]
    return cache[:formulary_factory][cache_key]
  end

  formula = loader_for(ref, from: from).get_formula(spec, alias_path: alias_path,
                                                    force_bottle: force_bottle, flags: flags,
                                                    ignore_errors: ignore_errors)
  if factory_cached?
    cache[:formulary_factory] ||= {}
    cache[:formulary_factory][cache_key] ||= formula
  end
  formula
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) 


25
26
27
 
# File 'formulary.rb', line 25

def self.factory_cached?
  !@factory_cache.nil?
end

.formula_class_defined?(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.

Returns:

  • (Boolean) 


29
30
31
 
# File 'formulary.rb', line 29

def self.formula_class_defined?(path)
  cache.key?(path)
end

.formula_class_get(path) ⇒ Object

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. 



33
34
35
 
# File 'formulary.rb', line 33

def self.formula_class_get(path)
  cache.fetch(path)
end

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

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.



467
468
469
470
471
472
473
474
 
# File 'formulary.rb', line 467

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: alias_path, force_bottle: force_bottle,
                                    flags: flags, ignore_errors: ignore_errors)
end

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

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:

  • spec (defaults to: nil) —

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



442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
 
# File 'formulary.rb', line 442

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

  f = if tap.nil?
    factory(keg.rack.basename.to_s, spec, alias_path: alias_path, from: :keg,
            force_bottle: force_bottle, flags: flags)
  else
    begin
      factory("#{tap}/#{keg.rack.basename}", spec, alias_path: alias_path, from: :keg,
              force_bottle: force_bottle, flags: flags)
    rescue FormulaUnavailableError
      # formula may be migrated to different tap. Try to search in core and all taps.
      factory(keg.rack.basename.to_s, spec, alias_path: alias_path, from: :keg,
              force_bottle: force_bottle, flags: flags)
    end
  end
  f.build = tab
  f.build.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: []) ⇒ Object

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:

  • spec (defaults to: nil) —

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

  • :alias_path —

    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.



420
421
422
423
424
425
426
427
428
429
430
 
# File 'formulary.rb', line 420

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(&:version)

  if keg
    from_keg(keg, spec, alias_path: alias_path)
  else
    factory(rack.basename.to_s, spec || :stable, alias_path: alias_path, from: :rack,
            force_bottle: force_bottle, flags: flags)
  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.

Returns:

  • (Boolean) 


433
434
435
436
437
 
# File 'formulary.rb', line 433

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

.load_formula(name, path, contents, namespace, flags:, ignore_errors:) ⇒ Object

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. 



64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
 
# File 'formulary.rb', line 64

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"

  mod = Module.new
  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)
  rescue NameError, ArgumentError, ScriptError, MethodDeprecatedError, MacOSVersionError => 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) }
                    .select { |const| const.is_a?(Class) }
    new_exception = FormulaClassUnavailableError.new(name, path, class_name, class_list)
    remove_const(namespace)
    raise new_exception, "", e.backtrace
  end
end

.load_formula_from_path(name, path, flags:, ignore_errors:) ⇒ Object

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. 



107
108
109
110
111
112
 
# File 'formulary.rb', line 107

def self.load_formula_from_path(name, path, flags:, ignore_errors:)
  contents = path.open("r") { |f| ensure_utf8_encoding(f).read }
  namespace = "FormulaNamespace#{Digest::MD5.hexdigest(path.to_s)}"
  klass = load_formula(name, path, contents, namespace, flags: flags, ignore_errors: ignore_errors)
  cache[path] = klass
end

.loader_for(ref, from: nil) ⇒ Object

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.

Raises:



501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
 
# File 'formulary.rb', line 501

def self.loader_for(ref, from: nil)
  case ref
  when HOMEBREW_BOTTLES_EXTNAME_REGEX
    return BottleLoader.new(ref)
  when URL_START_REGEX
    return FromUrlLoader.new(ref)
  when HOMEBREW_TAP_FORMULA_REGEX
    return TapLoader.new(ref, from: from)
  end

  return FromPathLoader.new(ref) if File.extname(ref) == ".rb" && Pathname.new(ref).expand_path.exist?

  formula_with_that_name = core_path(ref)
  return FormulaLoader.new(ref, formula_with_that_name) if formula_with_that_name.file?

  possible_alias = CoreTap.instance.alias_dir/ref
  return AliasLoader.new(possible_alias) if possible_alias.file?

  possible_tap_formulae = tap_paths(ref)
  raise TapFormulaAmbiguityError.new(ref, possible_tap_formulae) if possible_tap_formulae.size > 1

  if possible_tap_formulae.size == 1
    path = possible_tap_formulae.first.resolved_path
    name = path.basename(".rb").to_s
    return FormulaLoader.new(name, path)
  end

  if (newref = CoreTap.instance.formula_renames[ref])
    formula_with_that_oldname = core_path(newref)
    return FormulaLoader.new(newref, formula_with_that_oldname) if formula_with_that_oldname.file?
  end

  possible_tap_newname_formulae = []
  Tap.each do |tap|
    if (newref = tap.formula_renames[ref])
      possible_tap_newname_formulae << "#{tap.name}/#{newref}"
    end
  end

  if possible_tap_newname_formulae.size > 1
    raise TapFormulaWithOldnameAmbiguityError.new(ref, possible_tap_newname_formulae)
  end

  return TapLoader.new(possible_tap_newname_formulae.first, from: from) unless possible_tap_newname_formulae.empty?

  possible_keg_formula = Pathname.new("#{HOMEBREW_PREFIX}/opt/#{ref}/.brew/#{ref}.rb")
  return FormulaLoader.new(ref, possible_keg_formula) if possible_keg_formula.file?

  possible_cached_formula = Pathname.new("#{HOMEBREW_CACHE_FORMULA}/#{ref}.rb")
  return FormulaLoader.new(ref, possible_cached_formula) if possible_cached_formula.file?

  NullLoader.new(ref)
end

.path(ref) ⇒ Object

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. 



497
498
499
 
# File 'formulary.rb', line 497

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

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

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. 



114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
 
# File 'formulary.rb', line 114

def self.resolve(name, spec: nil, force_bottle: false, flags: [])
  if name.include?("/") || File.exist?(name)
    f = factory(name, *spec, force_bottle: force_bottle, flags: 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: force_bottle, flags: flags).alias_path
    f = from_rack(rack, *spec, alias_path: alias_path, force_bottle: force_bottle, flags: 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_paths(name, taps = Dir[HOMEBREW_LIBRARY/"Taps/*/*/"]) ⇒ Object

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. 



559
560
561
562
563
564
565
566
567
568
569
 
# File 'formulary.rb', line 559

def self.tap_paths(name, taps = Dir[HOMEBREW_LIBRARY/"Taps/*/*/"])
  name = name.to_s.downcase
  taps.map do |tap|
    Pathname.glob([
      "#{tap}Formula/#{name}.rb",
      "#{tap}HomebrewFormula/#{name}.rb",
      "#{tap}#{name}.rb",
      "#{tap}Aliases/#{name}",
    ]).find(&:file?)
  end.compact
end

.to_rack(ref) ⇒ Object

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. 



476
477
478
479
480
481
482
483
484
485
486
487
 
# File 'formulary.rb', line 476

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