Class: Homebrew::Diagnostic::Checks Private

Inherits:
Object
  • Object
show all
Includes:
OS::Linux::Diagnostic::Checks, OS::Mac::Diagnostic::Checks, SystemCommand::Mixin, Utils::Output::Mixin
Defined in:
diagnostic.rb

Overview

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

Diagnostic checks.

HELPERS collapse

Instance Method Summary collapse

Methods included from Utils::Output::Mixin

#issue_reporting_message, #odebug, #odeprecated, #odie, #odisabled, #ofail, #oh1, #oh1_title, #ohai, #ohai_title, #onoe, #opoo, #opoo_outside_github_actions, #opoo_without_github_actions_annotation, #pretty_deprecated, #pretty_disabled, #pretty_duration, #pretty_install_status, #pretty_installed, #pretty_outdated, #pretty_uninstalled, #pretty_upgradable

Methods included from SystemCommand::Mixin

#system_command, #system_command!

Methods included from OS::Linux::Diagnostic::Checks

#check_for_symlinked_home, #check_gcc_dependent_linkage, #check_glibc_minimum_version, #check_glibc_next_version, #check_glibc_version, #check_kernel_minimum_version, #check_linux_sandbox, #check_linuxbrew_bottle_domain, #check_linuxbrew_core, #check_supported_architecture, #check_tmpdir_executable, #check_umask_not_zero

Methods included from OS::Mac::Diagnostic::Checks

#check_broken_sdks, #check_cask_quarantine_support, #check_clt_minimum_version, #check_clt_up_to_date, #check_filesystem_case_sensitive, #check_for_gettext, #check_for_iconv, #check_for_multiple_volumes, #check_for_non_prefixed_findutils, #check_for_opencore, #check_for_unsupported_macos, #check_if_supported_sdk_available, #check_if_xcode_needs_clt_installed, #check_pkgconf_macos_sdk_mismatch, #check_xcode_license_approved, #check_xcode_minimum_version, #check_xcode_prefix, #check_xcode_prefix_exists, #check_xcode_select_path, #check_xcode_up_to_date

Constructor Details

#initialize(verbose: true) ⇒ 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.

Parameters:

  • verbose (Boolean) (defaults to: true) 


48
49
50
51
52
53
54
55
 
# File 'diagnostic.rb', line 48

def initialize(verbose: true)
  @verbose = verbose
  @found = T.let([], T::Array[String])
  @seen_prefix_bin = T.let(false, T::Boolean)
  @seen_prefix_sbin = T.let(false, T::Boolean)
  @user_path_1_done = T.let(false, T::Boolean)
  @non_core_taps = T.let([], T.nilable(T::Array[Tap]))
end

Instance Method Details

#__check_linked_brew!(formula) ⇒ 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) 


757
758
759
760
761
762
763
764
765
766
767
768
 
# File 'diagnostic.rb', line 757

def __check_linked_brew!(formula)
  formula.installed_prefixes.each do |prefix|
    prefix.find do |src|
      next if src == prefix

      dst = HOMEBREW_PREFIX + src.relative_path_from(prefix)
      return true if dst.symlink? && src == dst.resolved_path
    end
  end

  false
end

#__check_stray_files(dir, pattern, allow_list, message) ⇒ 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:



214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
 
# File 'diagnostic.rb', line 214

def __check_stray_files(dir, pattern, allow_list, message)
  return unless File.directory?(dir)

  files = Dir.chdir(dir) do
    (Dir.glob(pattern) - Dir.glob(allow_list))
      .select { |f| File.file?(f) && !File.symlink?(f) }
      .map do |f|
        f.sub!(%r{/.*}, "/*") unless @verbose
        File.join(dir, f)
      end
      .sort.uniq
  end
  return if files.empty?

  inject_file_list(files, message)
end

#add_info(*args) ⇒ 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.

Parameters:

  • args (T.anything) 


90
91
92
 
# File 'diagnostic.rb', line 90

def add_info(*args)
  ohai(*args) if @verbose
end

#all ⇒ Array<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.

Returns:



1308
1309
1310
 
# File 'diagnostic.rb', line 1308

def all
  methods.map(&:to_s).grep(/^check_/).sort
end

#broken_tap(tap) ⇒ 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:



182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
 
# File 'diagnostic.rb', line 182

def broken_tap(tap)
  return unless Utils::Git.available?

  repo = GitRepository.new(HOMEBREW_REPOSITORY)
  return unless repo.git_repository?

  message = <<~EOS
    #{tap.full_name} was not tapped properly! Run:
      rm -rf "#{tap.path}"
      brew tap #{tap.name}
  EOS

  return message if tap.remote.blank?

  tap_head = tap.git_head
  return message if tap_head.blank?
  return if tap_head != repo.head_ref

  message
end

#build_error_checks ⇒ Array<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.

Returns:



132
133
134
 
# File 'diagnostic.rb', line 132

def build_error_checks
  supported_configuration_checks + build_from_source_checks
end

#build_from_source_checks ⇒ Array<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.

Returns:



120
121
122
 
# File 'diagnostic.rb', line 120

def build_from_source_checks
  [].freeze
end

#cask_checks ⇒ Array<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.

Returns:



1313
1314
1315
 
# File 'diagnostic.rb', line 1313

def cask_checks
  all.grep(/^check_cask_/)
end

#check_access_directories ⇒ 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.

Returns:



408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
 
# File 'diagnostic.rb', line 408

def check_access_directories
  not_writable_dirs =
    Keg.must_be_writable_directories.select(&:exist?)
       .reject(&:writable?)
  return if not_writable_dirs.empty?

  <<~EOS
    The following directories are not writable by your user:
    #{not_writable_dirs.join("\n")}

    You should change the ownership of these directories to your user.
      sudo chown -R #{current_user} #{not_writable_dirs.join(" ")}

    And make sure that your user has write permission.
      chmod u+w #{not_writable_dirs.join(" ")}
  EOS
end

#check_brew_git_origin ⇒ 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.

Returns:



601
602
603
604
 
# File 'diagnostic.rb', line 601

def check_brew_git_origin
  repo = GitRepository.new(HOMEBREW_REPOSITORY)
  examine_git_origin(repo, Homebrew::EnvConfig.brew_git_remote)
end

#check_cask_corrupt_dirs ⇒ 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.

Returns:



1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
 
# File 'diagnostic.rb', line 1140

def check_cask_corrupt_dirs
  corrupt = Cask::Caskroom.corrupt_cask_dirs
  return if corrupt.empty?

  <<~EOS
    Some directories in the Caskroom do not have valid metadata.
      #{corrupt.map { |token| "#{Cask::Caskroom.path}/#{token}" }.join("\n  ")}
    The following #{Utils.pluralize("cask", corrupt.count)} cannot be upgraded as-is.
    To fix this, run:
      #{corrupt.map { |token| "brew reinstall --cask --force #{token}" }.join("\n  ")}
  EOS
end

#check_cask_deprecated_disabled ⇒ 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.

Returns:



834
835
836
837
838
839
840
841
842
843
844
 
# File 'diagnostic.rb', line 834

def check_cask_deprecated_disabled
  deprecated_or_disabled = Cask::Caskroom.casks.select(&:deprecated?)
  deprecated_or_disabled += Cask::Caskroom.casks.select(&:disabled?)
  return if deprecated_or_disabled.empty?

  <<~EOS
    Some installed casks are deprecated or disabled.
    You should find replacements for the following casks:
      #{deprecated_or_disabled.sort_by(&:token).uniq * "\n  "}
  EOS
end

#check_cask_environment_variables ⇒ 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.

Returns:



1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
 
# File 'diagnostic.rb', line 1186

def check_cask_environment_variables
  environment_variables = %w[
    RUBYLIB
    RUBYOPT
    RUBYPATH
    RBENV_VERSION
    CHRUBY_VERSION
    GEM_HOME
    GEM_PATH
    BUNDLE_PATH
    PATH
    SHELL
    HOMEBREW_CASK_OPTS
  ]

  locale_variables = ENV.keys.grep(/^(?:LC_\S+|LANG|LANGUAGE)\Z/).sort

  cask_environment_variables = (locale_variables + environment_variables).sort.filter_map do |var|
    next unless ENV.key?(var)

    %Q(#{var}="#{Utils::Shell.sh_quote(ENV.fetch(var))}")
  end
  add_info "Cask Environment Variables:", cask_environment_variables

  nil
end

#check_cask_install_location ⇒ 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.

Returns:



1112
1113
1114
1115
1116
1117
1118
1119
 
# File 'diagnostic.rb', line 1112

def check_cask_install_location
  locations = Dir.glob(HOMEBREW_CELLAR.join("brew-cask", "*")).reverse
  return if locations.empty?

  locations.map do |l|
    "Legacy install at #{l}. Run `brew uninstall --force brew-cask`."
  end.join "\n"
end

#check_cask_load_path ⇒ 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.

Returns:



1177
1178
1179
1180
1181
1182
1183
 
# File 'diagnostic.rb', line 1177

def check_cask_load_path
  paths = $LOAD_PATH.map { user_tilde(it) }

  add_info "$LOAD_PATHS", paths.presence || none_string

  "$LOAD_PATH is empty" if paths.blank?
end

#check_cask_software_versions ⇒ 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.

Returns:



1105
1106
1107
1108
1109
 
# File 'diagnostic.rb', line 1105

def check_cask_software_versions
  add_info "Homebrew Version", HOMEBREW_VERSION

  nil
end

#check_cask_staging_location ⇒ 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.

Returns:



1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
 
# File 'diagnostic.rb', line 1122

def check_cask_staging_location
  # Skip this check when running CI since the staging path is not writable for security reasons
  return if GitHub::Actions.env_set?

  path = Cask::Caskroom.path

  add_info "Homebrew Cask Staging Location", user_tilde(path.to_s)

  return if !path.exist? || path.writable?

  <<~EOS
    The staging path #{user_tilde(path.to_s)} is not writable by the current user.
    To fix, run:
      sudo chown -R #{current_user} #{user_tilde(path.to_s)}
  EOS
end

#check_cask_taps ⇒ 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.

Returns:



1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
 
# File 'diagnostic.rb', line 1154

def check_cask_taps
  error_tap_paths = []

  taps = (Tap.to_a + [CoreCaskTap.instance]).uniq

  taps_info = taps.filter_map do |tap|
    cask_count = begin
      tap.cask_files.count
    rescue
      error_tap_paths << tap.path
      0
    end
    next if cask_count.zero?

    "#{tap.path} (#{Utils.pluralize("cask", cask_count, include_count: true)})"
  end
  add_info "Homebrew Cask Taps:", taps_info

  taps_string = Utils.pluralize("tap", error_tap_paths.count)
  "Unable to read from cask #{taps_string}: #{error_tap_paths.to_sentence}" if error_tap_paths.present?
end

#check_cask_xattr ⇒ 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.

Returns:



1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
 
# File 'diagnostic.rb', line 1214

def check_cask_xattr
  # If quarantine is not available, a warning is already shown by check_cask_quarantine_support so just return
  return unless Cask::Quarantine.available?
  return "Unable to find `xattr`." unless File.exist?("/usr/bin/xattr")

  result = system_command "/usr/bin/xattr", args: ["-h"]

  return if result.status.success?

  if result.stderr.include? "ImportError: No module named pkg_resources"
    result = Utils.popen_read "/usr/bin/python", "--version", err: :out

    if result.include? "Python 2.7"
      <<~EOS
        Your Python installation has a broken version of setuptools.
        To fix, reinstall macOS or run:
          sudo /usr/bin/python -m pip install -I setuptools
      EOS
    else
      <<~EOS
        The system Python version is wrong.
        To fix, run:
          defaults write com.apple.versioner.python Version 2.7
      EOS
    end
  elsif result.stderr.include? "pkg_resources.DistributionNotFound"
    "Your Python installation is unable to find `xattr`."
  else
    "unknown xattr error: #{result.stderr.split("\n").last}"
  end
end

#check_casktap_integrity ⇒ 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.

Returns:



634
635
636
637
638
639
 
# File 'diagnostic.rb', line 634

def check_casktap_integrity
  core_cask_tap = CoreCaskTap.instance
  return unless core_cask_tap.installed?

  broken_tap(core_cask_tap) || examine_git_origin(core_cask_tap.git_repository, T.must(core_cask_tap.remote))
end

#check_coretap_integrity ⇒ 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.

Returns:



622
623
624
625
626
627
628
629
630
631
 
# File 'diagnostic.rb', line 622

def check_coretap_integrity
  core_tap = CoreTap.instance
  unless core_tap.installed?
    return unless EnvConfig.no_install_from_api?

    core_tap.ensure_installed!
  end

  broken_tap(core_tap) || examine_git_origin(core_tap.git_repository, Homebrew::EnvConfig.core_git_remote)
end

#check_deleted_formula ⇒ 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.

Returns:



1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
 
# File 'diagnostic.rb', line 1024

def check_deleted_formula
  kegs = Keg.all

  deleted_formulae = kegs.filter_map do |keg|
    tap = keg.tab.tap
    tap_keg_name = tap ? "#{tap}/#{keg.name}" : keg.name

    loadable = [
      Formulary::FromAPILoader,
      Formulary::FromTapLoader,
      Formulary::FromNameLoader,
    ].any? do |loader_class|
      loader = begin
        loader_class.try_new(tap_keg_name, warn: false)
      rescue TapFormulaAmbiguityError => e
        e.loaders.first
      end

      loader.instance_of?(Formulary::FromTapLoader) ? loader.path.exist? : loader.present?
    end

    keg.name unless loadable
  end.uniq

  return if deleted_formulae.blank?

  <<~EOS
    Some installed kegs have no formulae!
    This means they were either deleted or installed manually.
    You should find replacements for the following formulae:
      #{deleted_formulae.join("\n  ")}
  EOS
end

#check_deprecated_cask_taps ⇒ 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.

Returns:



1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
 
# File 'diagnostic.rb', line 1091

def check_deprecated_cask_taps
  tapped_caskroom_taps = ::Tap.select { |t| t.user == "caskroom" || t.name == "phinze/cask" }
                              .map(&:name)
  return if tapped_caskroom_taps.empty?

  <<~EOS
    You have the following deprecated Cask taps installed:
      #{tapped_caskroom_taps.join("\n  ")}
    Please remove them with:
      brew untap #{tapped_caskroom_taps.join(" ")}
  EOS
end

#check_deprecated_disabled ⇒ 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.

Returns:



820
821
822
823
824
825
826
827
828
829
830
831
 
# File 'diagnostic.rb', line 820

def check_deprecated_disabled
  return unless HOMEBREW_CELLAR.exist?

  deprecated_or_disabled = Formula.installed.select { |f| f.deprecated? || f.disabled? }
  return if deprecated_or_disabled.empty?

  <<~EOS
    Some installed formulae are deprecated or disabled.
    You should find replacements for the following formulae:
      #{deprecated_or_disabled.sort_by(&:full_name).uniq * "\n  "}
  EOS
end

#check_deprecated_official_taps ⇒ 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.

Returns:



685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
 
# File 'diagnostic.rb', line 685

def check_deprecated_official_taps
  tapped_deprecated_taps =
    Tap.select(&:official?).map(&:repository) & DEPRECATED_OFFICIAL_TAPS

  # TODO: remove this once it's no longer in the default GitHub Actions image
  tapped_deprecated_taps -= ["bundle"] if GitHub::Actions.env_set?

  return if tapped_deprecated_taps.empty?

  <<~EOS
    You have the following deprecated, official taps tapped:
      Homebrew/homebrew-#{tapped_deprecated_taps.join("\n  Homebrew/homebrew-")}
    Untap them with `brew untap`.
  EOS
end

#check_exist_directories ⇒ 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.

Returns:



391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
 
# File 'diagnostic.rb', line 391

def check_exist_directories
  return if HOMEBREW_PREFIX.writable?

  not_exist_dirs = Keg.must_exist_directories.reject(&:exist?)
  return if not_exist_dirs.empty?

  <<~EOS
    The following directories do not exist:
    #{not_exist_dirs.join("\n")}

    You should create these directories and change their ownership to your user.
      sudo mkdir -p #{not_exist_dirs.join(" ")}
      sudo chown -R #{current_user} #{not_exist_dirs.join(" ")}
  EOS
end

#check_for_broken_symlinks ⇒ 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.

Returns:



361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
 
# File 'diagnostic.rb', line 361

def check_for_broken_symlinks
  broken_symlinks = []

  Keg.must_exist_subdirectories.each do |d|
    next unless d.directory?

    d.find do |path|
      broken_symlinks << path if path.symlink? && !path.resolved_path_exists?
    end
  end
  return if broken_symlinks.empty?

  inject_file_list broken_symlinks, <<~EOS
    Broken symlinks were found. Remove them with `brew cleanup`:
  EOS
end

#check_for_duplicate_casks ⇒ 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.

Returns:



1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
 
# File 'diagnostic.rb', line 1280

def check_for_duplicate_casks
  return if ENV["HOMEBREW_TEST_BOT"].present?

  core_cask_names = CoreCaskTap.instance.cask_tokens
  shadowed_cask_full_names = non_core_taps.flat_map do |tap|
    tap_cask_names = tap.cask_tokens.map { |s| s.delete_prefix("#{tap.name}/") }
    (core_cask_names & tap_cask_names).map { |f| "#{tap.name}/#{f}" }
  end.compact.sort
  return if shadowed_cask_full_names.empty?

  installed_cask_tap_names = Cask::Caskroom.casks.filter_map(&:tap).uniq.reject(&:official?).map(&:name)
  shadowed_cask_tap_names = shadowed_cask_full_names.filter_map { |s| Utils.tap_from_full_name(s) }.uniq
  unused_shadowed_cask_tap_names = (shadowed_cask_tap_names - installed_cask_tap_names).sort

  resolution = if unused_shadowed_cask_tap_names.empty?
    "Their taps are in use, so you must use these full names throughout Homebrew."
  else
    "Some of these can be resolved with:\n  brew untap #{unused_shadowed_cask_tap_names.join(" ")}"
  end

  <<~EOS
    The following casks have the same name as core casks:
      #{shadowed_cask_full_names.join("\n  ")}
    #{resolution}
  EOS
end

#check_for_duplicate_formulae ⇒ 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.

Returns:



1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
 
# File 'diagnostic.rb', line 1252

def check_for_duplicate_formulae
  return if ENV["HOMEBREW_TEST_BOT"].present?

  core_formula_names = CoreTap.instance.formula_names
  shadowed_formula_full_names = non_core_taps.flat_map do |tap|
    tap_formula_names = tap.formula_names.map { |s| s.delete_prefix("#{tap.name}/") }
    (core_formula_names & tap_formula_names).map { |f| "#{tap.name}/#{f}" }
  end.compact.sort
  return if shadowed_formula_full_names.empty?

  installed_formula_tap_names = Formula.installed.filter_map(&:tap).uniq.reject(&:official?).map(&:name)
  shadowed_formula_tap_names = shadowed_formula_full_names.filter_map { |s| Utils.tap_from_full_name(s) }.uniq
  unused_shadowed_formula_tap_names = (shadowed_formula_tap_names - installed_formula_tap_names).sort

  resolution = if unused_shadowed_formula_tap_names.empty?
    "Their taps are in use, so you must use these full names throughout Homebrew."
  else
    "Some of these can be resolved with:\n  brew untap #{unused_shadowed_formula_tap_names.join(" ")}"
  end

  <<~EOS
    The following formulae have the same name as core formulae:
      #{shadowed_formula_full_names.join("\n  ")}
    #{resolution}
  EOS
end

#check_for_external_cmd_name_conflict ⇒ 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.

Returns:



955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
 
# File 'diagnostic.rb', line 955

def check_for_external_cmd_name_conflict
  cmds = Commands.tap_cmd_directories.flat_map { |p| Dir["#{p}/brew-*"] }.uniq
  cmds = cmds.select { |cmd| File.file?(cmd) && File.executable?(cmd) }
  cmd_map = {}
  cmds.each do |cmd|
    cmd_name = File.basename(cmd, ".rb")
    cmd_map[cmd_name] ||= []
    cmd_map[cmd_name] << cmd
  end
  cmd_map.reject! { |_cmd_name, cmd_paths| cmd_paths.size == 1 }
  return if cmd_map.empty?

  if ENV["CI"].present? && cmd_map.keys.length == 1 &&
     cmd_map.keys.first == "brew-test-bot"
    return
  end

  message = "You have external commands with conflicting names.\n"
  cmd_map.each do |cmd_name, cmd_paths|
    message += inject_file_list cmd_paths, <<~EOS
      Found command `#{cmd_name}` in the following places:
    EOS
  end

  message
end

#check_for_git ⇒ 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.

Returns:



547
548
549
550
551
552
553
554
555
556
 
# File 'diagnostic.rb', line 547

def check_for_git
  return if Utils::Git.available?

  <<~EOS
    Git could not be found in your PATH.
    Homebrew uses Git for several internal functions and some formulae use Git
    checkouts instead of stable tarballs. You may want to install Git:
      brew install git
  EOS
end

#check_for_installed_developer_tools ⇒ 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.

Returns:



204
205
206
207
208
209
210
211
 
# File 'diagnostic.rb', line 204

def check_for_installed_developer_tools
  return if DevelopmentTools.installed?

  <<~EOS
    No developer tools installed.
    #{DevelopmentTools.installation_instructions}
  EOS
end

#check_for_nix_homebrew ⇒ 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.

Returns:



607
608
609
610
611
612
613
614
615
616
617
618
619
 
# File 'diagnostic.rb', line 607

def check_for_nix_homebrew
  return unless OS.nix_managed_homebrew?

  <<~EOS
    Your Homebrew installation is managed by Nix.
    Homebrew does not support Nix-managed installations.

    This is a Tier 3 configuration:
      #{Formatter.url("https://docs.brew.sh/Support-Tiers#tier-3")}
    #{Formatter.bold("Report issues to the upstream Nix project, not Homebrew/* repositories:")}
      #{Formatter.url(OS.nix_managed_homebrew_issues_url)}
  EOS
end

#check_for_non_prefixed_coreutils ⇒ 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.

Returns:



887
888
889
890
891
892
893
894
895
896
897
898
899
 
# File 'diagnostic.rb', line 887

def check_for_non_prefixed_coreutils
  coreutils = Formula["coreutils"]
  return unless coreutils.any_version_installed?

  gnubin = %W[#{coreutils.opt_libexec}/gnubin #{coreutils.libexec}/gnubin]
  return unless paths.intersect?(gnubin)

  <<~EOS
    Putting non-prefixed coreutils in your path can cause GMP builds to fail.
  EOS
rescue FormulaUnavailableError
  nil
end

#check_for_other_frameworks ⇒ 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.

Returns:



771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
 
# File 'diagnostic.rb', line 771

def check_for_other_frameworks
  # Other frameworks that are known to cause problems when present
  frameworks_to_check = %w[
    expat.framework
    libexpat.framework
    libcurl.framework
  ]
  frameworks_found = frameworks_to_check
                     .map { |framework| "/Library/Frameworks/#{framework}" }
                     .select { |framework| File.exist? framework }
  return if frameworks_found.empty?

  inject_file_list frameworks_found, <<~EOS
    Some frameworks can be picked up by CMake's build system and will likely
    cause the build to fail. To compile CMake, you may wish to move these
    out of the way:
  EOS
end

#check_for_pydistutils_cfg_in_home ⇒ 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.

Returns:



902
903
904
905
906
907
908
909
910
911
 
# File 'diagnostic.rb', line 902

def check_for_pydistutils_cfg_in_home
  return unless File.exist? "#{Dir.home}/.pydistutils.cfg"

  <<~EOS
    A '.pydistutils.cfg' file was found in $HOME, which may cause Python
    builds to fail. See:
      #{Formatter.url("https://bugs.python.org/issue6138")}
      #{Formatter.url("https://bugs.python.org/issue4655")}
  EOS
end

#check_for_stray_dylibs ⇒ 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.

Returns:



232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
 
# File 'diagnostic.rb', line 232

def check_for_stray_dylibs
  # Dylibs which are generally OK should be added to this list,
  # with a short description of the software they come with.
  allow_list = [
    "libfuse.2.dylib", # MacFuse
    "libfuse3.*.dylib", # MacFuse
    "libfuse_ino64.2.dylib", # MacFuse
    "libfuse-t*.dylib", # FUSE-T
    "libmacfuse_i32.2.dylib", # OSXFuse MacFuse compatibility layer
    "libmacfuse_i64.2.dylib", # OSXFuse MacFuse compatibility layer
    "libosxfuse_i32.2.dylib", # OSXFuse
    "libosxfuse_i64.2.dylib", # OSXFuse
    "libosxfuse.2.dylib", # OSXFuse
    "libTrAPI.dylib", # TrAPI/Endpoint Security VPN
    "libntfs-3g.*.dylib", # NTFS-3G
    "libntfs.*.dylib", # NTFS-3G
    "libublio.*.dylib", # NTFS-3G
    "libUFSDNTFS.dylib", # Paragon NTFS
    "libUFSDExtFS.dylib", # Paragon ExtFS
    "libecomlodr.dylib", # Symantec Endpoint Protection
    "libsymsea*.dylib", # Symantec Endpoint Protection
    "sentinel.dylib", # SentinelOne
    "sentinel-*.dylib", # SentinelOne
  ]

  __check_stray_files "/usr/local/lib", "*.dylib", allow_list, <<~EOS
    Unbrewed dylibs were found in /usr/local/lib.
    If you didn't put them there on purpose they could cause problems when
    building Homebrew formulae and may need to be deleted.

    Unexpected dylibs:
  EOS
end

#check_for_stray_headers ⇒ 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.

Returns:



340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
 
# File 'diagnostic.rb', line 340

def check_for_stray_headers
  allow_list = [
    "fuse.h", # MacFuse
    "fuse/**/*.h", # MacFuse
    "fuse3/**/*.h", # MacFuse
    "macfuse/**/*.h", # OSXFuse MacFuse compatibility layer
    "osxfuse/**/*.h", # OSXFuse
    "ntfs/**/*.h", # NTFS-3G
    "ntfs-3g/**/*.h", # NTFS-3G
  ]

  __check_stray_files "/usr/local/include", "**/*.h", allow_list, <<~EOS
    Unbrewed header files were found in /usr/local/include.
    If you didn't put them there on purpose they could cause problems when
    building Homebrew formulae and may need to be deleted.

    Unexpected header files:
  EOS
end

#check_for_stray_las ⇒ 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.

Returns:



318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
 
# File 'diagnostic.rb', line 318

def check_for_stray_las
  allow_list = [
    "libfuse.la", # MacFuse
    "libfuse_ino64.la", # MacFuse
    "libosxfuse_i32.la", # OSXFuse
    "libosxfuse_i64.la", # OSXFuse
    "libosxfuse.la", # OSXFuse
    "libntfs-3g.la", # NTFS-3G
    "libntfs.la", # NTFS-3G
    "libublio.la", # NTFS-3G
  ]

  __check_stray_files "/usr/local/lib", "*.la", allow_list, <<~EOS
    Unbrewed '.la' files were found in /usr/local/lib.
    If you didn't put them there on purpose they could cause problems when
    building Homebrew formulae and may need to be deleted.

    Unexpected '.la' files:
  EOS
end

#check_for_stray_pcs ⇒ 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.

Returns:



295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
 
# File 'diagnostic.rb', line 295

def check_for_stray_pcs
  # Package-config files which are generally OK should be added to this list,
  # with a short description of the software they come with.
  allow_list = [
    "fuse.pc", # OSXFuse/MacFuse
    "fuse3.pc", # OSXFuse/MacFuse
    "fuse-t.pc", # FUSE-T
    "macfuse.pc", # OSXFuse MacFuse compatibility layer
    "osxfuse.pc", # OSXFuse
    "libntfs-3g.pc", # NTFS-3G
    "libublio.pc", # NTFS-3G
  ]

  __check_stray_files "/usr/local/lib/pkgconfig", "*.pc", allow_list, <<~EOS
    Unbrewed '.pc' files were found in /usr/local/lib/pkgconfig.
    If you didn't put them there on purpose they could cause problems when
    building Homebrew formulae and may need to be deleted.

    Unexpected '.pc' files:
  EOS
end

#check_for_stray_static_libs ⇒ 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.

Returns:



267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
 
# File 'diagnostic.rb', line 267

def check_for_stray_static_libs
  # Static libs which are generally OK should be added to this list,
  # with a short description of the software they come with.
  allow_list = [
    "libfuse-t*.a", # FUSE-T
    "libfuse3.a", # FUSE-T
    "libntfs-3g.a", # NTFS-3G
    "libntfs.a", # NTFS-3G
    "libublio.a", # NTFS-3G
    "libappfirewall.a", # Symantec Endpoint Protection
    "libautoblock.a", # Symantec Endpoint Protection
    "libautosetup.a", # Symantec Endpoint Protection
    "libconnectionsclient.a", # Symantec Endpoint Protection
    "liblocationawareness.a", # Symantec Endpoint Protection
    "libpersonalfirewall.a", # Symantec Endpoint Protection
    "libtrustedcomponents.a", # Symantec Endpoint Protection
  ]

  __check_stray_files "/usr/local/lib", "*.a", allow_list, <<~EOS
    Unbrewed static libraries were found in /usr/local/lib.
    If you didn't put them there on purpose they could cause problems when
    building Homebrew formulae and may need to be deleted.

    Unexpected static libraries:
  EOS
end

#check_for_symlinked_cellar ⇒ 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.

Returns:



511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
 
# File 'diagnostic.rb', line 511

def check_for_symlinked_cellar
  return unless HOMEBREW_CELLAR.exist?
  return unless HOMEBREW_CELLAR.symlink?

  <<~EOS
    Symlinked Cellars can cause problems.
    Your Homebrew Cellar is a symlink: #{HOMEBREW_CELLAR}
                    which resolves to: #{HOMEBREW_CELLAR.realpath}

    The recommended Homebrew installations are either:
    (A) Have Cellar be a real directory inside of your `$HOMEBREW_PREFIX`
    (B) Symlink "bin/brew" into your prefix, but don't symlink "Cellar".

    Older installations of Homebrew may have created a symlinked Cellar, but this can
    cause problems when two formulae install to locations that are mapped on top of each
    other during the linking step.
  EOS
end

#check_for_tap_ruby_files_locations ⇒ 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.

Returns:



983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
 
# File 'diagnostic.rb', line 983

def check_for_tap_ruby_files_locations
  bad_tap_files = {}
  Tap.installed.each do |tap|
    unused_formula_dirs = tap.potential_formula_dirs - [tap.formula_dir]
    unused_formula_dirs.each do |dir|
      next unless dir.exist?

      dir.children.each do |path|
        next if path.extname != ".rb"

        bad_tap_files[tap] ||= []
        bad_tap_files[tap] << path
      end
    end
  end
  return if bad_tap_files.empty?

  bad_tap_files.keys.map do |tap|
    <<~EOS
      Found Ruby file outside #{tap} tap formula directory.
      (#{tap.formula_dir}):
        #{bad_tap_files[tap].join("\n  ")}
    EOS
  end.join("\n")
end

#check_for_unlinked_but_not_keg_only ⇒ 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.

Returns:



933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
 
# File 'diagnostic.rb', line 933

def check_for_unlinked_but_not_keg_only
  unlinked = Formula.racks.reject do |rack|
    next true if (HOMEBREW_LINKED_KEGS/rack.basename).directory?

    begin
      Formulary.from_rack(rack).keg_only?
    rescue Homebrew::UntrustedTapError
      true
    rescue FormulaUnavailableError, TapFormulaAmbiguityError
      false
    end
  end.map(&:basename)
  return if unlinked.empty?

  inject_file_list unlinked, <<~EOS
    You have unlinked kegs in your Cellar.
    Leaving kegs unlinked can lead to build-trouble and cause formulae that depend on
    those kegs to fail to run properly once built. Run `brew link` on these:
  EOS
end

#check_for_unnecessary_cask_tap ⇒ 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.

Returns:



1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
 
# File 'diagnostic.rb', line 1074

def check_for_unnecessary_cask_tap
  return if Homebrew::EnvConfig.developer?
  return if Homebrew::EnvConfig.no_install_from_api?
  return if Homebrew::EnvConfig.devcmdrun?

  cask_tap = CoreCaskTap.instance
  return unless cask_tap.installed?

  <<~EOS
    You have an unnecessary local Cask tap.
    This can cause problems installing up-to-date casks.
    Please remove it by running:
      brew untap #{cask_tap.name}
  EOS
end

#check_for_unnecessary_core_tap ⇒ 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.

Returns:



1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
 
# File 'diagnostic.rb', line 1059

def check_for_unnecessary_core_tap
  return if Homebrew::EnvConfig.developer?
  return if Homebrew::EnvConfig.no_install_from_api?
  return if Homebrew::EnvConfig.devcmdrun?
  return unless CoreTap.instance.installed?

  <<~EOS
    You have an unnecessary local Core tap!
    This can cause problems installing up-to-date formulae.
    Please remove it by running:
     brew untap #{CoreTap.instance.name}
  EOS
end

#check_for_unreadable_installed_formula ⇒ 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.

Returns:



914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
 
# File 'diagnostic.rb', line 914

def check_for_unreadable_installed_formula
  formula_unavailable_exceptions = []
  Formula.racks.each do |rack|
    Formulary.from_rack(rack)
  rescue FormulaUnreadableError, FormulaClassUnavailableError,
         TapFormulaUnreadableError, TapFormulaClassUnavailableError => e
    formula_unavailable_exceptions << e
  rescue Homebrew::UntrustedTapError, FormulaUnavailableError, TapFormulaAmbiguityError
    nil
  end
  return if formula_unavailable_exceptions.empty?

  <<~EOS
    Some installed formulae are not readable:
      #{formula_unavailable_exceptions.join("\n\n  ")}
  EOS
end

#check_git_newline_settings ⇒ 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.

Returns:



559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
 
# File 'diagnostic.rb', line 559

def check_git_newline_settings
  return unless Utils::Git.available?

  autocrlf = HOMEBREW_REPOSITORY.cd { `git config --get core.autocrlf`.chomp }
  return if autocrlf != "true"

  <<~EOS
    Suspicious Git newline settings found.

    The detected Git newline settings will cause checkout problems:
      core.autocrlf = #{autocrlf}

    If you are not routinely dealing with Windows-based projects,
    consider removing these by running:
      git config --global core.autocrlf input
  EOS
end

#check_git_status ⇒ 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.

Returns:



847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
 
# File 'diagnostic.rb', line 847

def check_git_status
  return unless Utils::Git.available?

  message = T.let(nil, T.nilable(String))

  repos = {
    "Homebrew/brew"          => HOMEBREW_REPOSITORY,
    "Homebrew/homebrew-core" => CoreTap.instance.path,
    "Homebrew/homebrew-cask" => CoreCaskTap.instance.path,
  }

  repos.each do |name, path|
    next unless path.exist?

    status = path.cd do
      `git status --untracked-files=all --porcelain 2>/dev/null`
    end
    next if status.blank?

    message ||= ""
    message += "\n" unless message.empty?
    message += <<~EOS
      You have uncommitted modifications to #{name}.
      If this is a surprise to you, then you should stash these modifications.
      Stashing returns Homebrew to a pristine state but can be undone
      should you later need to do so for some reason.
        git -C "#{path}" stash -u && git -C "#{path}" clean -d -f
    EOS

    modified = status.split("\n")
    message += inject_file_list modified, <<~EOS

      Uncommitted files:
    EOS
  end

  message
end

#check_git_version ⇒ 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.

Returns:



531
532
533
534
535
536
537
538
539
540
541
542
543
544
 
# File 'diagnostic.rb', line 531

def check_git_version
  minimum_version = ENV.fetch("HOMEBREW_MINIMUM_GIT_VERSION")
  return unless Utils::Git.available?
  return if Utils::Git.version >= Version.new(minimum_version)

  git = Formula["git"]
  git_upgrade_cmd = git.any_version_installed? ? "upgrade" : "install"
  <<~EOS
    An outdated version (#{Utils::Git.version}) of Git was detected in your PATH.
    Git #{minimum_version} or newer is required for Homebrew.
    Please upgrade:
      brew #{git_upgrade_cmd} git
  EOS
end

#check_homebrew_prefix ⇒ 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.

Returns:



1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
 
# File 'diagnostic.rb', line 1010

def check_homebrew_prefix
  return if Homebrew.default_prefix?

  <<~EOS
    Your Homebrew's prefix is not #{Homebrew::DEFAULT_PREFIX}.

    Most of Homebrew's bottles (binary packages) can only be used with the default prefix.
    Consider uninstalling Homebrew and reinstalling into the default prefix.

    #{support_tier_message(tier: 3)}
  EOS
end

#check_homebrew_repository_git_hooks ⇒ 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.

Returns:



578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
 
# File 'diagnostic.rb', line 578

def check_homebrew_repository_git_hooks
  found = T.let([], T::Array[Pathname])

  hooks_dir = HOMEBREW_REPOSITORY/".git/hooks"
  if hooks_dir.directory?
    found += hooks_dir.children.reject { |path| path.basename.to_s.end_with?(".sample") }.sort_by(&:to_s)
  end

  gitconfig = HOMEBREW_REPOSITORY/".gitconfig"
  found << gitconfig if gitconfig.exist?
  return if found.empty?

  inject_file_list found, <<~EOS
    Git hooks or a repository-local `.gitconfig` were found in your Homebrew repository.
    Homebrew does not use these, and they can break Homebrew operations.
    Remove them with:
      rm -rf "#{HOMEBREW_REPOSITORY}/.git/hooks" "#{HOMEBREW_REPOSITORY}/.gitconfig"

    Paths found:
  EOS
end

#check_missing_deps ⇒ 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.

Returns:



801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
 
# File 'diagnostic.rb', line 801

def check_missing_deps
  return if !HOMEBREW_CELLAR.exist? && !Cask::Caskroom.path.exist?

  missing = Set.new
  Homebrew::Missing.deps(Formula.installed, Cask::Caskroom.casks).each_value do |deps|
    missing.merge(deps)
  end
  return if missing.empty?

  <<~EOS
    Some installed formulae or casks are missing dependencies.
    You should `brew install` the missing dependencies:
      brew install #{missing.sort * " "}

    Run `brew missing` for more details.
  EOS
end

#check_multiple_cellars ⇒ 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.

Returns:



427
428
429
430
431
432
433
434
435
436
437
 
# File 'diagnostic.rb', line 427

def check_multiple_cellars
  return if HOMEBREW_PREFIX.to_s == HOMEBREW_REPOSITORY.to_s
  return unless (HOMEBREW_REPOSITORY/"Cellar").exist?
  return unless (HOMEBREW_PREFIX/"Cellar").exist?

  <<~EOS
    You have multiple Cellars.
    You should delete #{HOMEBREW_REPOSITORY}/Cellar:
      rm -rf #{HOMEBREW_REPOSITORY}/Cellar
  EOS
end

#check_tap_git_branch ⇒ 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.

Returns:



642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
 
# File 'diagnostic.rb', line 642

def check_tap_git_branch
  return if ENV["CI"]
  return unless Utils::Git.available?

  deprecated_master = []
  commands = []

  brew_repo = GitRepository.new(HOMEBREW_REPOSITORY)
  deprecated_master << "Homebrew/brew" if brew_repo.branch_name == "master"

  Tap.installed.each do |tap|
    if tap.git_repository.branch_name == "master" && tap.official?
      deprecated_master << tap.name
    elsif !tap.git_repository.default_origin_branch?
      commands << "git -C $(brew --repo #{tap.name}) checkout #{tap.git_repository.origin_branch_name}"
    end
  end

  message = +""

  if deprecated_master.any?
    message << <<~EOS
      The following repositories are on the deprecated "master" branch.
      The "master" branch sync will stop and this warning will become an error
      when Homebrew 5.2.0 is released (no earlier than 2026-06-10).
      Run `brew update` to migrate to "main":
        #{deprecated_master.join("\n  ")}
    EOS
  end

  if commands.any?
    message << "\n" if deprecated_master.any?
    message << <<~EOS
      Some taps are not on the default git origin branch and may not receive
      updates. If this is a surprise to you, check out the default branch with:
        #{commands.join("\n  ")}
    EOS
  end

  message.presence
end

#check_tmpdir ⇒ 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.

Returns:



791
792
793
794
795
796
797
798
 
# File 'diagnostic.rb', line 791

def check_tmpdir
  tmpdir = ENV.fetch("TMPDIR", nil)
  return if tmpdir.nil? || File.directory?(tmpdir)

  <<~EOS
    TMPDIR #{tmpdir.inspect} doesn't exist.
  EOS
end

#check_tmpdir_sticky_bit ⇒ 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.

Returns:



379
380
381
382
383
384
385
386
387
388
 
# File 'diagnostic.rb', line 379

def check_tmpdir_sticky_bit
  world_writable = HOMEBREW_TEMP.stat.mode & 0777 == 0777
  return if !world_writable || HOMEBREW_TEMP.sticky?

  <<~EOS
    #{HOMEBREW_TEMP} is world-writable but does not have the sticky bit set.
    To set it, run the following command:
      sudo chmod +t #{HOMEBREW_TEMP}
  EOS
end

#check_untrusted_taps ⇒ 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.

Returns:



702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
 
# File 'diagnostic.rb', line 702

def check_untrusted_taps
  return if Homebrew::EnvConfig.no_require_tap_trust?

  untrusted_taps = Homebrew::Trust.wholly_untrusted_taps
  return if untrusted_taps.empty?

  untrusted_tap_names = untrusted_taps.map(&:name)
  installed_formulae_by_tap = T.let({}, T::Hash[String, T::Array[String]])
  Formula.racks.each do |rack|
    next unless (keg = Keg.from_rack(rack))
    next unless (tap = keg.tab.tap)
    next unless untrusted_tap_names.include?(tap.name)

    installed_formulae_by_tap[tap.name] ||= []
    installed_formulae_by_tap.fetch(tap.name) << "#{tap.name}/#{rack.basename}"
  rescue
    nil
  end
  installed_formula_message = installed_formulae_by_tap.filter_map do |_tap_name, formulae|
    next if formulae.empty?

    "  brew trust --formula #{formulae.sort.join(" ")}"
  end.join("\n")
  trust_required_message = if Homebrew::EnvConfig.require_tap_trust?
    "Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required."
  else
    "Homebrew will ignore formulae, casks and commands from these taps when " \
      "`HOMEBREW_REQUIRE_TAP_TRUST` is set.\n" \
      "This will become the default in Homebrew 6.0.0 or 5.2.0, whichever comes first."
  end

  <<~EOS
    The following taps are not trusted:
      #{untrusted_tap_names.join("\n  ")}

    #{trust_required_message}
    Enable trust checks now with:
      export HOMEBREW_REQUIRE_TAP_TRUST=1
    Trust specific formulae, casks or commands with:
      brew trust --formula <user>/<tap>/<formula>
      brew trust --cask <user>/<tap>/<cask>
      brew trust --command <user>/<tap>/<command>
    #{"or trust installed formulae from these taps with:\n#{installed_formula_message}" if installed_formula_message.present?}
    You can trust all formulae, casks and commands from these taps with:
      brew trust #{untrusted_tap_names.join(" ")}
    Prefer trusting only the specific formulae, casks or commands you need.
    Untap them with:
      brew untap #{untrusted_tap_names.join(" ")}
    To keep allowing them by default during the transition:
      export HOMEBREW_NO_REQUIRE_TAP_TRUST=1
    This is not recommended and will be removed in a later release.
  EOS
end

#check_user_path_1 ⇒ 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.

Returns:



440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
 
# File 'diagnostic.rb', line 440

def check_user_path_1
  @seen_prefix_bin = false
  @seen_prefix_sbin = false

  message = ""

  paths.each do |p|
    case p
    when "/usr/bin"
      unless @seen_prefix_bin
        # only show the doctor message if there are any conflicts
        # rationale: a default install should not trigger any brew doctor messages
        conflicts = Dir["#{HOMEBREW_PREFIX}/bin/*"]
                    .map { |fn| File.basename fn }
                    .select { |bn| File.exist? "/usr/bin/#{bn}" }

        unless conflicts.empty?
          message = inject_file_list conflicts, <<~EOS
            /usr/bin occurs before #{HOMEBREW_PREFIX}/bin in your PATH.
            This means that system-provided programs will be used instead of those
            provided by Homebrew. Consider setting your PATH so that
            #{HOMEBREW_PREFIX}/bin occurs before /usr/bin. Here is a one-liner:
              #{Utils::Shell.prepend_path_in_profile("#{HOMEBREW_PREFIX}/bin")}

            The following tools exist at both paths:
          EOS
        end
      end
    when "#{HOMEBREW_PREFIX}/bin"
      @seen_prefix_bin = true
    when "#{HOMEBREW_PREFIX}/sbin"
      @seen_prefix_sbin = true
    end
  end

  @user_path_1_done = true
  message unless message.empty?
end

#check_user_path_2 ⇒ 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.

Returns:



480
481
482
483
484
485
486
487
488
489
 
# File 'diagnostic.rb', line 480

def check_user_path_2
  check_user_path_1 unless @user_path_1_done
  return if @seen_prefix_bin

  <<~EOS
    Homebrew's "bin" was not found in your PATH.
    Consider setting your PATH for example like so:
      #{Utils::Shell.prepend_path_in_profile("#{HOMEBREW_PREFIX}/bin")}
  EOS
end

#check_user_path_3 ⇒ 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.

Returns:



492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
 
# File 'diagnostic.rb', line 492

def check_user_path_3
  check_user_path_1 unless @user_path_1_done
  return if @seen_prefix_sbin

  # Don't complain about sbin not being in the path if it doesn't exist
  sbin = HOMEBREW_PREFIX/"sbin"
  return unless sbin.directory?
  return if sbin.children.empty?
  return if sbin.children.one? && sbin.children.first.basename.to_s == ".keepme"

  <<~EOS
    Homebrew's "sbin" was not found in your PATH but you have installed
    formulae that put executables in #{HOMEBREW_PREFIX}/sbin.
    Consider setting your PATH for example like so:
      #{Utils::Shell.prepend_path_in_profile("#{HOMEBREW_PREFIX}/sbin")}
  EOS
end

#current_user ⇒ 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.

Returns:



1318
1319
1320
 
# File 'diagnostic.rb', line 1318

def current_user
  ENV.fetch("USER", "$(whoami)")
end

#examine_git_origin(repository_path, desired_origin) ⇒ 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:



155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
 
# File 'diagnostic.rb', line 155

def examine_git_origin(repository_path, desired_origin)
  return if !Utils::Git.available? || !repository_path.git_repository?

  current_origin = repository_path.origin_url

  if current_origin.nil?
    <<~EOS
      Missing #{desired_origin} git origin remote.

      Without a correctly configured origin, Homebrew won't update
      properly. You can solve this by adding the remote:
        git -C "#{repository_path}" remote add origin #{Formatter.url(desired_origin)}
    EOS
  elsif !current_origin.match?(%r{#{desired_origin}(\.git|/)?$}i)
    <<~EOS
      Suspicious #{desired_origin} git origin remote found.
      The current git origin is:
        #{current_origin}

      With a non-standard origin, Homebrew won't update properly.
      You can solve this by setting the origin remote:
        git -C "#{repository_path}" remote set-url origin #{Formatter.url(desired_origin)}
    EOS
  end
end

#fatal_build_from_source_checks ⇒ Array<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.

Returns:



103
104
105
106
107
 
# File 'diagnostic.rb', line 103

def fatal_build_from_source_checks
  %w[
    check_for_installed_developer_tools
  ].freeze
end

#fatal_preinstall_checks ⇒ Array<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.

Returns:



96
97
98
99
100
 
# File 'diagnostic.rb', line 96

def fatal_preinstall_checks
  %w[
    check_access_directories
  ].freeze
end

#fatal_setup_build_environment_checks ⇒ Array<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.

Returns:



110
111
112
 
# File 'diagnostic.rb', line 110

def fatal_setup_build_environment_checks
  [].freeze
end

#find_relative_paths(*relative_paths) ⇒ 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.

Finds files in HOMEBREW_PREFIX and /usr/local. Specify paths relative to a prefix, e.g. "include/foo.h". Sets @found for your convenience.

Parameters:



62
63
64
65
66
 
# File 'diagnostic.rb', line 62

def find_relative_paths(*relative_paths)
  @found = [HOMEBREW_PREFIX, "/usr/local"].uniq.reduce([]) do |found, prefix|
    found + relative_paths.map { |f| File.join(prefix, f) }.select { |f| File.exist? f }
  end
end

#inject_file_list(list, 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:



69
70
71
72
 
# File 'diagnostic.rb', line 69

def inject_file_list(list, string)
  list.reduce(string.dup) { |acc, elem| acc << "  #{elem}\n" }
      .freeze
end

#non_core_taps ⇒ Array<Tap>

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:



1247
1248
1249
 
# File 'diagnostic.rb', line 1247

def non_core_taps
  @non_core_taps ||= Tap.installed.reject(&:core_tap?).reject(&:core_cask_tap?)
end

#none_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.

Returns:



85
86
87
 
# File 'diagnostic.rb', line 85

def none_string
  "<NONE>"
end

#preinstall_checks ⇒ Array<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.

Returns:



125
126
127
128
129
 
# File 'diagnostic.rb', line 125

def preinstall_checks
  %w[
    check_untrusted_taps
  ].freeze
end

#support_tier_message(tier:) ⇒ 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:



137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
 
# File 'diagnostic.rb', line 137

def support_tier_message(tier:)
  return if tier.to_s == "1"

  tier_title, tier_slug, tier_issues = if tier.to_s == "unsupported"
    ["Unsupported", "unsupported", "Do not report any issues"]
  else
    ["Tier #{tier}", "tier-#{tier.to_s.downcase}", "You can report issues with Tier #{tier} configurations"]
  end

  <<~EOS
    This is a #{tier_title} configuration:
      #{Formatter.url("https://docs.brew.sh/Support-Tiers##{tier_slug}")}
    #{Formatter.bold("#{tier_issues} to Homebrew/* repositories!")}
    Read the above document before opening any issues or PRs.
  EOS
end

#supported_configuration_checks ⇒ Array<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.

Returns:



115
116
117
 
# File 'diagnostic.rb', line 115

def supported_configuration_checks
  [].freeze
end

#user_tilde(path) ⇒ 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:



75
76
77
78
79
80
81
82
 
# File 'diagnostic.rb', line 75

def user_tilde(path)
  home = Dir.home
  if path == home
    "~"
  else
    path.gsub(%r{^#{home}/}, "~/")
  end
end