Top Level Namespace

Extended by:
EnvActivation, GitRepositoryExtension, HomebrewArgvExtension

Defined Under Namespace

Modules: ArchitectureListExtension, Cachable, Commands, CompilerConstants, Debrew, Dependable, DiskUsageExtension, ELFShim, Emoji, EnvActivation, FileUtils, Formatter, FormulaCellarChecks, FormulaClassUnavailableErrorModule, FormulaUnreadableErrorModule, Formulary, Git, GitHub, GitRepositoryExtension, Hardware, HashValidator, Hbc, Homebrew, HomebrewArgvExtension, IRB, InstallRenamed, Language, MachOShim, Metafiles, OS, ObserverPathnameExtension, Patch, Predicable, Readall, RuboCop, SharedEnvExtension, Stdenv, StringInreplaceExtension, Superenv, Tty, Utils Classes: AbstractDownloadStrategy, AbstractFileDownloadStrategy, ArchRequirement, BazaarDownloadStrategy, Bottle, BottleDisableReason, BottleFormulaUnavailableError, BottleSpecification, Buffer, Build, BuildEnvironment, BuildError, BuildFlagsError, BuildOptions, BuildToolsError, CVSDownloadStrategy, CannotInstallFormulaError, CaskLock, Caveats, Checksum, ChecksumMismatchError, ChecksumMissingError, Cleaner, CompilerFailure, CompilerSelectionError, CompilerSelector, CoreTap, CurlApacheMirrorDownloadStrategy, CurlBottleDownloadStrategy, CurlDownloadStrategy, CurlDownloadStrategyError, CurlPostDownloadStrategy, CxxStdlib, DATAPatch, Dependencies, Dependency, DependencyCollector, DeprecatedOption, Descriptions, DevelopmentTools, DownloadError, DownloadStrategyDetector, DuplicateResourceError, EmbeddedPatch, ErrorDuringExecution, ExternalPatch, Formula, FormulaAmbiguousPythonError, FormulaAuditor, FormulaClassUnavailableError, FormulaConflict, FormulaConflictError, FormulaCreator, FormulaInstallationAlreadyAttemptedError, FormulaInstaller, FormulaLock, FormulaPin, FormulaSpecificationError, FormulaText, FormulaUnavailableError, FormulaUnreadableError, FormulaUnspecifiedError, FormulaValidationError, FormulaVersions, FossilDownloadStrategy, GitDownloadStrategy, GitHubGitDownloadStrategy, GitHubPrivateRepositoryDownloadStrategy, GitHubPrivateRepositoryReleaseDownloadStrategy, HeadSoftwareSpec, HeadVersion, IO, JavaRequirement, Keg, KegOnlyReason, KegUnspecifiedError, LD64Dependency, LegacyPatch, LinkageChecker, LinuxRequirement, LocalBottleDownloadStrategy, Locale, LockFile, MacOSRequirement, MaximumMacOSRequirement, MercurialDownloadStrategy, MethodDeprecatedError, Migrator, MissingApplyError, Module, MultipleVersionsInstalledError, NilClass, NoSuchKegError, NoUnzipCurlDownloadStrategy, NonBinaryOsxfuseRequirement, NotAKegError, OperationInProgressError, Option, Options, OsxfuseRequirement, PATH, Pathname, PkgVersion, PourBottleCheck, PrettyListing, Reporter, ReporterHub, Requirement, Requirements, Resource, ResourceAuditor, ResourceMissingError, ResourceStageContext, S3DownloadStrategy, Sandbox, SoftwareSpec, String, StringPatch, SubversionDownloadStrategy, Symbol, SystemConfig, Tab, Tap, TapAlreadyTappedError, TapAlreadyUnshallowError, TapConfig, TapDependency, TapFormulaAmbiguityError, TapFormulaClassUnavailableError, TapFormulaUnavailableError, TapFormulaUnreadableError, TapFormulaWithOldnameAmbiguityError, TapPinStatusError, TapRemoteMismatchError, TapUnavailableError, TuntapRequirement, UnsatisfiedRequirements, UnsignedKextRequirement, UsageError, VCSDownloadStrategy, Version, X11Requirement, XcodeRequirement

Constant Summary collapse

RUBY_VERSION_SPLIT =

check ruby version before requiring any modules.

RUBY_VERSION.split "."
RUBY_X = 
RUBY_VERSION_SPLIT[0].to_i
RUBY_Y = 
RUBY_VERSION_SPLIT[1].to_i
HOMEBREW_LIBRARY_PATH = 
Pathname.new(__FILE__).realpath.parent
TEST_TIMEOUT_SECONDS = 
5 * 60
HOMEBREW_BREW_FILE =

Path to `bin/brew` main executable in HOMEBREW_PREFIX

Pathname.new(ENV["HOMEBREW_BREW_FILE"])
HOMEBREW_PREFIX =

Where we link under

Pathname.new(ENV["HOMEBREW_PREFIX"])
HOMEBREW_REPOSITORY =

Where .git is found

Pathname.new(ENV["HOMEBREW_REPOSITORY"])
HOMEBREW_LIBRARY =

Where we store most of Homebrew, taps, and various metadata

Pathname.new(ENV["HOMEBREW_LIBRARY"])
HOMEBREW_SHIMS_PATH =

Where shim scripts for various build and SCM tools are stored

HOMEBREW_LIBRARY/"Homebrew/shims"
HOMEBREW_LINKED_KEGS =

Where we store symlinks to currently linked kegs

HOMEBREW_PREFIX/"var/homebrew/linked"
HOMEBREW_PINNED_KEGS =

Where we store symlinks to currently version-pinned kegs

HOMEBREW_PREFIX/"var/homebrew/pinned"
HOMEBREW_LOCK_DIR =

Where we store lock files

HOMEBREW_PREFIX/"var/homebrew/locks"
HOMEBREW_CELLAR =

Where we store built products

Pathname.new(ENV["HOMEBREW_CELLAR"])
HOMEBREW_CACHE =

Where downloads (bottles, source tarballs, etc.) are cached

Pathname.new(ENV["HOMEBREW_CACHE"])
HOMEBREW_CACHE_FORMULA =

Where brews installed via URL are cached

HOMEBREW_CACHE/"Formula"
HOMEBREW_LOGS =

Where build, postinstall, and test logs of formulae are written to

Pathname.new(ENV["HOMEBREW_LOGS"] || "~/Library/Logs/Homebrew/").expand_path
HOMEBREW_TEMP =

Must use /tmp instead of $TMPDIR because long paths break Unix domain sockets

Pathname.new(ENV.fetch("HOMEBREW_TEMP", "/tmp"))
HOMEBREW_LOAD_PATH =

Load path used by standalone scripts to access the Homebrew code base

HOMEBREW_LIBRARY_PATH
HOMEBREW_PRODUCT = 
ENV["HOMEBREW_PRODUCT"]
HOMEBREW_VERSION = 
ENV["HOMEBREW_VERSION"]
HOMEBREW_WWW = 
"https://brew.sh".freeze
RUBY_PATH = 
Pathname.new(RbConfig.ruby)
RUBY_BIN = 
RUBY_PATH.dirname
HOMEBREW_USER_AGENT_CURL = 
ENV["HOMEBREW_USER_AGENT_CURL"]
HOMEBREW_USER_AGENT_RUBY = 
"#{ENV["HOMEBREW_USER_AGENT"]} ruby/#{RUBY_VERSION}-p#{RUBY_PATCHLEVEL}".freeze
HOMEBREW_USER_AGENT_FAKE_SAFARI = 
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/602.4.8 (KHTML, like Gecko) Version/10.0.3 Safari/602.4.8".freeze
HOMEBREW_PULL_API_REGEX = 
%r{https://api\.github\.com/repos/([\w-]+)/([\w-]+)?/pulls/(\d+)}
HOMEBREW_PULL_OR_COMMIT_URL_REGEX = 
%r[https://github\.com/([\w-]+)/([\w-]+)?/(?:pull/(\d+)|commit/[0-9a-fA-F]{4,40})]
ORIGINAL_PATHS = 
PATH.new(ENV["HOMEBREW_PATH"]).map do |p|
  begin
    Pathname.new(p).expand_path
  rescue
    nil
  end
end.compact.freeze
HOMEBREW_INTERNAL_COMMAND_ALIASES = 
{
  "ls" => "list",
  "homepage" => "home",
  "-S" => "search",
  "up" => "update",
  "ln" => "link",
  "instal" => "install", # gem does the same
  "uninstal" => "uninstall",
  "rm" => "uninstall",
  "remove" => "uninstall",
  "configure" => "diy",
  "abv" => "info",
  "dr" => "doctor",
  "--repo" => "--repository",
  "environment" => "--env",
  "--config" => "config",
}.freeze
HOMEBREW_HELP = 
<<~EOS.freeze
  Example usage:
    brew search [TEXT|/REGEX/]
    brew (info|home|options) [FORMULA...]
    brew install FORMULA...
    brew update
    brew upgrade [FORMULA...]
    brew uninstall FORMULA...
    brew list [FORMULA...]

  Troubleshooting:
    brew config
    brew doctor
    brew install -vd FORMULA

  Developers:
    brew create [URL [--no-fetch]]
    brew edit [FORMULA...]
    https://docs.brew.sh/Formula-Cookbook.html

  Further help:
    man brew
    brew help [COMMAND]
    brew home
EOS
HOMEBREW_RUBOCOP_VERSION =

RuboCop version used for `brew style` and `brew cask style`

"0.52.1"
HOMEBREW_RUBOCOP_CASK_VERSION =

has to be updated when RuboCop version changes

"~> 0.16.0"
OFFICIAL_TAPS = 
%w[
  php
].freeze
OFFICIAL_CASK_TAPS = 
%w[
  cask
  versions
].freeze
OFFICIAL_CMD_TAPS = 
{
  "homebrew/bundle" => ["bundle"],
  "homebrew/test-bot" => ["test-bot"],
  "homebrew/services" => ["services"],
}.freeze
DEPRECATED_OFFICIAL_TAPS = 
%w[
  apache
  binary
  completions
  devel-only
  dupes
  emacs
  fuse
  games
  gui
  head-only
  nginx
  python
  science
  tex
  versions
  x11
].freeze
HOMEBREW_TAP_FORMULA_REGEX =

match taps' formulae, e.g. someuser/sometap/someformula

%r{^([\w-]+)/([\w-]+)/([\w+-.@]+)$}
HOMEBREW_TAP_CASK_REGEX =

match taps' casks, e.g. someuser/sometap/somecask

%r{^([\w-]+)/([\w-]+)/([a-z0-9\-]+)$}
HOMEBREW_TAP_DIR_REGEX =

match taps' directory paths, e.g. HOMEBREW_LIBRARY/Taps/someuser/sometap

%r{#{Regexp.escape(HOMEBREW_LIBRARY)}/Taps/(?<user>[\w-]+)/(?<repo>[\w-]+)}
HOMEBREW_TAP_PATH_REGEX =

match taps' formula paths, e.g. HOMEBREW_LIBRARY/Taps/someuser/sometap/someformula

Regexp.new(HOMEBREW_TAP_DIR_REGEX.source + %r{/(.*)}.source)
HOMEBREW_CASK_TAP_CASK_REGEX =

match the default and the versions brew-cask tap e.g. Caskroom/cask or Caskroom/versions

%r{^([Cc]askroom)/(cask|versions)/([\w+-.]+)$}
BOTTLE_ERB = 
"bottle do\n<% if !root_url.start_with?(BottleSpecification::DEFAULT_DOMAIN) %>\nroot_url \"<%= root_url %>\"\n<% end %>\n<% if prefix != BottleSpecification::DEFAULT_PREFIX %>\nprefix \"<%= prefix %>\"\n<% end %>\n<% if cellar.is_a? Symbol %>\ncellar :<%= cellar %>\n<% elsif cellar != BottleSpecification::DEFAULT_CELLAR %>\ncellar \"<%= cellar %>\"\n<% end %>\n<% if rebuild.positive? %>\nrebuild <%= rebuild %>\n<% end %>\n<% checksums.each do |checksum_type, checksum_values| %>\n<% checksum_values.each do |checksum_value| %>\n<% checksum, macos = checksum_value.shift %>\n<%= checksum_type %> \"<%= checksum %>\" => :<%= macos %>\n<% end %>\n<% end %>\nend\n".freeze
MAXIMUM_STRING_MATCHES = 
100
BUG_REPORTS_URL = 
"https://github.com/caskroom/homebrew-cask#reporting-bugs".freeze
PYTHON_VIRTUALENV_URL = 
"https://files.pythonhosted.org/packages/d4/0c/9840c08189e030873387a73b90ada981885010dd9aea134d6de30cd24cb8/virtualenv-15.1.0.tar.gz".freeze
PYTHON_VIRTUALENV_SHA256 = 
"02f8102c2436bb03b3ee6dede1919d1dac8a427541652e5ec95171ec8adbc93a".freeze

Instance Method Summary collapse

Methods included from EnvActivation

activate_extensions!, clear_sensitive_environment!, with_build_environment

Methods included from GitRepositoryExtension

git?, git_branch, git_head, git_last_commit, git_last_commit_date, git_origin, git_short_head

Methods included from HomebrewArgvExtension

bottle_arch, build_all_from_source?, build_bottle?, build_devel?, build_formula_from_source?, build_from_source?, build_head?, build_stable?, build_universal?, casks, cc, collect_build_flags, debug?, dry_run?, env, fetch_head?, flag?, flags_only, force?, force_bottle?, formula_install_option_names, formulae, git?, homebrew_developer?, ignore_deps?, include?, interactive?, json, keep_tmp?, kegs, named, next, no_sandbox?, one?, only_deps?, options_only, quieter?, resolved_formulae, sandbox?, switch?, value, values, verbose?

Instance Method Details

#archs_for_command(cmd) ⇒ Object

Returns array of architectures that the given command or library is built for.



383
384
385
386
 
# File 'Library/Homebrew/utils.rb', line 383

def archs_for_command(cmd)
  cmd = which(cmd) unless Pathname.new(cmd).absolute?
  Pathname.new(cmd).archs
end

#capture_stderr ⇒ Object 



397
398
399
400
401
402
403
404
 
# File 'Library/Homebrew/utils.rb', line 397

def capture_stderr
  old = $stderr
  $stderr = StringIO.new
  yield
  $stderr.string
ensure
  $stderr = old
end

#curl(*args) ⇒ Object 



39
40
41
42
43
44
45
 
# File 'Library/Homebrew/utils/curl.rb', line 39

def curl(*args)
  # SSL_CERT_FILE can be incorrectly set by users or portable-ruby and screw
  # with SSL downloads so unset it here.
  with_env SSL_CERT_FILE: nil do
    safe_system(*curl_args(*args))
  end
end

#curl_args(*extra_args, show_output: false, user_agent: :default) ⇒ Object 



14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
 
# File 'Library/Homebrew/utils/curl.rb', line 14

def curl_args(*extra_args, show_output: false, user_agent: :default)
  args = [
    curl_executable.to_s,
    "--show-error",
  ]

  args << "--user-agent" << case user_agent
  when :browser, :fake
    HOMEBREW_USER_AGENT_FAKE_SAFARI
  when :default
    HOMEBREW_USER_AGENT_CURL
  else
    user_agent
  end

  unless show_output
    args << "--fail"
    args << "--progress-bar" unless ARGV.verbose?
    args << "--verbose" if ENV["HOMEBREW_CURL_VERBOSE"]
    args << "--silent" if !$stdout.tty? || ENV["TRAVIS"]
  end

  args + extra_args
end

#curl_check_http_content(url, user_agents: [:default], check_content: false, strict: false, require_http: false) ⇒ Object 



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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
 
# File 'Library/Homebrew/utils/curl.rb', line 66

def curl_check_http_content(url, user_agents: [:default], check_content: false, strict: false, require_http: false)
  return unless url.start_with? "http"

  details = nil
  user_agent = nil
  hash_needed = url.start_with?("http:") && !require_http
  user_agents.each do |ua|
    details = curl_http_content_headers_and_checksum(url, hash_needed: hash_needed, user_agent: ua)
    user_agent = ua
    break if details[:status].to_s.start_with?("2")
  end

  unless details[:status]
    # Hack around https://github.com/Homebrew/brew/issues/3199
    return if MacOS.version == :el_capitan
    return "The URL #{url} is not reachable"
  end

  unless details[:status].start_with? "2"
    return "The URL #{url} is not reachable (HTTP status code #{details[:status]})"
  end

  return unless hash_needed

  secure_url = url.sub "http", "https"
  secure_details =
    curl_http_content_headers_and_checksum(secure_url, hash_needed: true, user_agent: user_agent)

  if !details[:status].to_s.start_with?("2") ||
     !secure_details[:status].to_s.start_with?("2")
    return
  end

  etag_match = details[:etag] &&
               details[:etag] == secure_details[:etag]
  content_length_match =
    details[:content_length] &&
    details[:content_length] == secure_details[:content_length]
  file_match = details[:file_hash] == secure_details[:file_hash]

  if etag_match || content_length_match || file_match
    return "The URL #{url} should use HTTPS rather than HTTP"
  end

  return unless check_content

  no_protocol_file_contents = %r{https?:\\?/\\?/}
  details[:file] = details[:file].gsub(no_protocol_file_contents, "/")
  secure_details[:file] = secure_details[:file].gsub(no_protocol_file_contents, "/")

  # Check for the same content after removing all protocols
  if details[:file] == secure_details[:file]
    return "The URL #{url} should use HTTPS rather than HTTP"
  end

  return unless strict

  # Same size, different content after normalization
  # (typical causes: Generated ID, Timestamp, Unix time)
  if details[:file].length == secure_details[:file].length
    return "The URL #{url} may be able to use HTTPS rather than HTTP. Please verify it in a browser."
  end

  lenratio = (100 * secure_details[:file].length / details[:file].length).to_i
  return unless (90..110).cover?(lenratio)
  "The URL #{url} may be able to use HTTPS rather than HTTP. Please verify it in a browser."
end

#curl_download(*args, to: nil, continue_at: "-", **options) ⇒ Object 



47
48
49
50
51
52
53
54
55
56
57
58
59
60
 
# File 'Library/Homebrew/utils/curl.rb', line 47

def curl_download(*args, to: nil, continue_at: "-", **options)
  had_incomplete_download ||= File.exist?(to)
  curl("--location", "--remote-time", "--continue-at", continue_at.to_s, "--output", to, *args, **options)
rescue ErrorDuringExecution
  # `curl` error 33: HTTP server doesn't seem to support byte ranges. Cannot resume.
  # HTTP status 416: Requested range not satisfiable
  if ($CHILD_STATUS.exitstatus == 33 || had_incomplete_download) && continue_at == "-"
    continue_at = 0
    had_incomplete_download = false
    retry
  end

  raise
end

#curl_executable ⇒ Object 



4
5
6
7
8
9
10
11
12
 
# File 'Library/Homebrew/utils/curl.rb', line 4

def curl_executable
  @curl ||= [
    ENV["HOMEBREW_CURL"],
    which("curl"),
    "/usr/bin/curl",
  ].map { |c| Pathname(c) }.find(&:executable?)
  raise "curl is not executable" unless @curl
  @curl
end

#curl_http_content_headers_and_checksum(url, hash_needed: false, user_agent: :default) ⇒ Object 



134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
 
# File 'Library/Homebrew/utils/curl.rb', line 134

def curl_http_content_headers_and_checksum(url, hash_needed: false, user_agent: :default)
  max_time = hash_needed ? "600" : "25"
  output, = curl_output(
    "--connect-timeout", "15", "--include", "--max-time", max_time, "--location", url,
    user_agent: user_agent
  )

  status_code = :unknown
  while status_code == :unknown || status_code.to_s.start_with?("3")
    headers, _, output = output.partition("\r\n\r\n")
    status_code = headers[%r{HTTP\/.* (\d+)}, 1]
  end

  output_hash = Digest::SHA256.digest(output) if hash_needed

  {
    status: status_code,
    etag: headers[%r{ETag: ([wW]\/)?"(([^"]|\\")*)"}, 2],
    content_length: headers[/Content-Length: (\d+)/, 1],
    file_hash: output_hash,
    file: output,
  }
end

#curl_output(*args, **options) ⇒ Object 



62
63
64
 
# File 'Library/Homebrew/utils/curl.rb', line 62

def curl_output(*args, **options)
  Open3.capture3(*curl_args(*args, show_output: true, **options))
end

#deep_merge_hashes(hash1, hash2) ⇒ Object 



1
2
3
4
5
6
7
8
9
10
 
# File 'Library/Homebrew/utils/hash.rb', line 1

def deep_merge_hashes(hash1, hash2)
  merger = proc do |_key, v1, v2|
    if v1.is_a?(Hash) && v2.is_a?(Hash)
      v1.merge v2, &merger
    else
      v2
    end
  end
  hash1.merge hash2, &merger
end

#disk_usage_readable(size_in_bytes) ⇒ Object 



431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
 
# File 'Library/Homebrew/utils.rb', line 431

def disk_usage_readable(size_in_bytes)
  if size_in_bytes >= 1_073_741_824
    size = size_in_bytes.to_f / 1_073_741_824
    unit = "GB"
  elsif size_in_bytes >= 1_048_576
    size = size_in_bytes.to_f / 1_048_576
    unit = "MB"
  elsif size_in_bytes >= 1_024
    size = size_in_bytes.to_f / 1_024
    unit = "KB"
  else
    size = size_in_bytes
    unit = "B"
  end

  # avoid trailing zero after decimal point
  if ((size * 10).to_i % 10).zero?
    "#{size.to_i}#{unit}"
  else
    "#{format("%.1f", size)}#{unit}"
  end
end

#exec_browser(*args) ⇒ Object 



361
362
363
364
365
366
 
# File 'Library/Homebrew/utils.rb', line 361

def exec_browser(*args)
  browser = ENV["HOMEBREW_BROWSER"]
  browser ||= OS::PATH_OPEN if defined?(OS::PATH_OPEN)
  return unless browser
  safe_exec(browser, *args)
end

#exec_editor(*args) ⇒ Object 



356
357
358
359
 
# File 'Library/Homebrew/utils.rb', line 356

def exec_editor(*args)
  puts "Editing #{args.join "\n"}"
  with_homebrew_path { safe_exec(which_editor, *args) }
end

#gzip(*paths) ⇒ Object

GZips the given paths, and returns the gzipped paths



375
376
377
378
379
380
 
# File 'Library/Homebrew/utils.rb', line 375

def gzip(*paths)
  paths.collect do |path|
    safe_system "gzip", path
    Pathname.new("#{path}.gz")
  end
end

#ignore_interrupts(opt = nil) ⇒ Object 



388
389
390
391
392
393
394
395
 
# File 'Library/Homebrew/utils.rb', line 388

def ignore_interrupts(opt = nil)
  std_trap = trap("INT") do
    puts "One sec, just cleaning up" unless opt == :quietly
  end
  yield
ensure
  trap("INT", std_trap)
end

#interactive_shell(f = nil) ⇒ Object 



159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
 
# File 'Library/Homebrew/utils.rb', line 159

def interactive_shell(f = nil)
  unless f.nil?
    ENV["HOMEBREW_DEBUG_PREFIX"] = f.prefix
    ENV["HOMEBREW_DEBUG_INSTALL"] = f.full_name
  end

  if ENV["SHELL"].include?("zsh") && ENV["HOME"].start_with?(HOMEBREW_TEMP.resolved_path.to_s)
    FileUtils.mkdir_p ENV["HOME"]
    FileUtils.touch "#{ENV["HOME"]}/.zshrc"
  end

  Process.wait fork { exec ENV["SHELL"] }

  return if $CHILD_STATUS.success?
  raise "Aborted due to non-zero exit status (#{$CHILD_STATUS.exitstatus})" if $CHILD_STATUS.exited?
  raise $CHILD_STATUS.inspect
end

#migrate_legacy_keg_symlinks_if_necessary ⇒ Object 



494
495
496
497
498
499
500
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
 
# File 'Library/Homebrew/utils.rb', line 494

def migrate_legacy_keg_symlinks_if_necessary
  legacy_linked_kegs = HOMEBREW_LIBRARY/"LinkedKegs"
  return unless legacy_linked_kegs.directory?

  HOMEBREW_LINKED_KEGS.mkpath unless legacy_linked_kegs.children.empty?
  legacy_linked_kegs.children.each do |link|
    name = link.basename.to_s
    src = begin
      link.realpath
    rescue Errno::ENOENT
      begin
        (HOMEBREW_PREFIX/"opt/#{name}").realpath
      rescue Errno::ENOENT
        begin
          Formulary.factory(name).installed_prefix
        rescue
          next
        end
      end
    end
    dst = HOMEBREW_LINKED_KEGS/name
    dst.unlink if dst.exist?
    FileUtils.ln_sf(src.relative_path_from(dst.parent), dst)
  end
  FileUtils.rm_rf legacy_linked_kegs

  legacy_pinned_kegs = HOMEBREW_LIBRARY/"PinnedKegs"
  return unless legacy_pinned_kegs.directory?

  HOMEBREW_PINNED_KEGS.mkpath unless legacy_pinned_kegs.children.empty?
  legacy_pinned_kegs.children.each do |link|
    name = link.basename.to_s
    src = link.realpath
    dst = HOMEBREW_PINNED_KEGS/name
    FileUtils.ln_sf(src.relative_path_from(dst.parent), dst)
  end
  FileUtils.rm_rf legacy_pinned_kegs
end

#nostdout ⇒ Object 



406
407
408
409
410
411
412
413
414
415
416
417
418
419
 
# File 'Library/Homebrew/utils.rb', line 406

def nostdout
  if ARGV.verbose?
    yield
  else
    begin
      out = $stdout.dup
      $stdout.reopen("/dev/null")
      yield
    ensure
      $stdout.reopen(out)
      out.close
    end
  end
end

#number_readable(number) ⇒ Object 



454
455
456
457
458
 
# File 'Library/Homebrew/utils.rb', line 454

def number_readable(number)
  numstr = number.to_i.to_s
  (numstr.size - 3).step(1, -3) { |i| numstr.insert(i, ",") }
  numstr
end

#odebug(title, *sput) ⇒ Object

global methods



20
21
22
23
24
 
# File 'Library/Homebrew/cask/lib/hbc/utils.rb', line 20

def odebug(title, *sput)
  return unless ARGV.debug?
  puts Formatter.headline(title, color: :magenta)
  puts sput unless sput.empty?
end

#odeprecated(method, replacement = nil, disable: false, disable_on: nil, caller: send(:caller)) ⇒ Object 



58
59
60
61
62
63
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
106
107
108
109
110
111
112
113
114
115
116
117
 
# File 'Library/Homebrew/utils.rb', line 58

def odeprecated(method, replacement = nil, disable: false, disable_on: nil, caller: send(:caller))
  replacement_message = if replacement
    "Use #{replacement} instead."
  else
    "There is no replacement."
  end

  unless disable_on.nil?
    if disable_on > Time.now
      will_be_disabled_message = " and will be disabled on #{disable_on.strftime("%Y-%m-%d")}"
    else
      disable = true
    end
  end

  verb = if disable
    "disabled"
  else
    "deprecated#{will_be_disabled_message}"
  end

  # Try to show the most relevant location in message, i.e. (if applicable):
  # - Location in a formula.
  # - Location outside of 'compat/'.
  # - Location of caller of deprecated method (if all else fails).
  backtrace = caller
  tap_message = nil

  # Don't throw deprecations at all for cached, .brew or .metadata files.
  return if backtrace.any? do |line|
    line.include?(HOMEBREW_CACHE) ||
    line.include?("/.brew/") ||
    line.include?("/.metadata/")
  end

  caller_message = backtrace.detect do |line|
    next unless line =~ %r{^#{Regexp.escape(HOMEBREW_LIBRARY)}/Taps/([^/]+/[^/]+)/}
    tap = Tap.fetch Regexp.last_match(1)
    tap_message = "\nPlease report this to the #{tap} tap!"
    true
  end
  caller_message ||= backtrace.detect do |line|
    !line.start_with?("#{HOMEBREW_LIBRARY_PATH}/compat/")
  end
  caller_message ||= backtrace[1]

  message = <<~EOS
    Calling #{method} is #{verb}!
    #{replacement_message}
    #{caller_message}#{tap_message}
  EOS

  if ARGV.homebrew_developer? || disable ||
     Homebrew.raise_deprecation_exceptions?
    developer_message = message + "Or, even better, submit a PR to fix it!"
    raise MethodDeprecatedError, developer_message
  elsif !Homebrew.auditing?
    opoo "#{message}\n"
  end
end

#odie(error) ⇒ Object 



53
54
55
56
 
# File 'Library/Homebrew/utils.rb', line 53

def odie(error)
  onoe error
  exit 1
end

#odisabled(method, replacement = nil, options = {}) ⇒ Object 



119
120
121
122
 
# File 'Library/Homebrew/utils.rb', line 119

def odisabled(method, replacement = nil, options = {})
  options = { disable: true, caller: caller }.merge(options)
  odeprecated(method, replacement, options)
end

#ofail(error) ⇒ Object 



48
49
50
51
 
# File 'Library/Homebrew/utils.rb', line 48

def ofail(error)
  onoe error
  Homebrew.failed = true
end

#oh1(title, options = {}) ⇒ Object 



32
33
34
35
36
37
 
# File 'Library/Homebrew/utils.rb', line 32

def oh1(title, options = {})
  if $stdout.tty? && !ARGV.verbose? && options.fetch(:truncate, :auto) == :auto
    title = Tty.truncate(title)
  end
  puts Formatter.headline(title, color: :green)
end

#ohai(title, *sput) ⇒ Object 



26
27
28
29
30
 
# File 'Library/Homebrew/utils.rb', line 26

def ohai(title, *sput)
  title = Tty.truncate(title) if $stdout.tty? && !ARGV.verbose?
  puts Formatter.headline(title, color: :blue)
  puts sput
end

#onoe(message) ⇒ Object 



44
45
46
 
# File 'Library/Homebrew/utils.rb', line 44

def onoe(message)
  $stderr.puts Formatter.error(message, label: "Error")
end

#opoo(message) ⇒ Object

Print a warning (do this rarely)



40
41
42
 
# File 'Library/Homebrew/utils.rb', line 40

def opoo(message)
  $stderr.puts Formatter.warning(message, label: "Warning")
end

#paths ⇒ Object 



421
422
423
424
425
426
427
428
429
 
# File 'Library/Homebrew/utils.rb', line 421

def paths
  @paths ||= PATH.new(ENV["HOMEBREW_PATH"]).collect do |p|
    begin
      File.expand_path(p).chomp("/")
    rescue ArgumentError
      onoe "The following PATH component is invalid: #{p}"
    end
  end.uniq.compact
end

#pretty_duration(s) ⇒ Object 



144
145
146
147
148
149
150
151
152
153
154
155
156
157
 
# File 'Library/Homebrew/utils.rb', line 144

def pretty_duration(s)
  s = s.to_i
  res = ""

  if s > 59
    m = s / 60
    s %= 60
    res = Formatter.pluralize(m, "minute")
    return res if s.zero?
    res << " "
  end

  res << Formatter.pluralize(s, "second")
end

#pretty_installed(f) ⇒ Object 



124
125
126
127
128
129
130
131
132
 
# File 'Library/Homebrew/utils.rb', line 124

def pretty_installed(f)
  if !$stdout.tty?
    f.to_s
  elsif Emoji.enabled?
    "#{Tty.bold}#{f} #{Formatter.success("✔")}#{Tty.reset}"
  else
    Formatter.success("#{Tty.bold}#{f} (installed)#{Tty.reset}")
  end
end

#pretty_uninstalled(f) ⇒ Object 



134
135
136
137
138
139
140
141
142
 
# File 'Library/Homebrew/utils.rb', line 134

def pretty_uninstalled(f)
  if !$stdout.tty?
    f.to_s
  elsif Emoji.enabled?
    "#{Tty.bold}#{f} #{Formatter.error("✘")}#{Tty.reset}"
  else
    Formatter.error("#{Tty.bold}#{f} (uninstalled)#{Tty.reset}")
  end
end

#quiet_system(cmd, *args) ⇒ Object

prints no output



298
299
300
301
302
303
304
305
 
# File 'Library/Homebrew/utils.rb', line 298

def quiet_system(cmd, *args)
  Homebrew._system(cmd, *args) do
    # Redirect output streams to `/dev/null` instead of closing as some programs
    # will fail to execute if they can't write to an open stream.
    $stdout.reopen("/dev/null")
    $stderr.reopen("/dev/null")
  end
end

#require?(path) ⇒ Boolean

Returns:

  • (Boolean) 


18
19
20
21
22
23
24
 
# File 'Library/Homebrew/utils.rb', line 18

def require?(path)
  return false if path.nil?
  require path
rescue LoadError => e
  # we should raise on syntax errors but not if the file doesn't exist.
  raise unless e.message.include?(path)
end

#run_as_not_developer ⇒ Object 



286
287
288
289
290
 
# File 'Library/Homebrew/utils.rb', line 286

def run_as_not_developer
  with_env(HOMEBREW_DEVELOPER: nil) do
    yield
  end
end

#safe_exec(cmd, *args) ⇒ Object 



368
369
370
371
372
 
# File 'Library/Homebrew/utils.rb', line 368

def safe_exec(cmd, *args)
  # This buys us proper argument quoting and evaluation
  # of environment variables in the cmd parameter.
  exec "/bin/sh", "-c", "#{cmd} \"$@\"", "--", *args
end

#safe_system(cmd, *args) ⇒ Object

Kernel.system but with exceptions



293
294
295
 
# File 'Library/Homebrew/utils.rb', line 293

def safe_system(cmd, *args)
  Homebrew.system(cmd, *args) || raise(ErrorDuringExecution.new(cmd, args))
end

#shell_profile ⇒ Object 



558
559
560
 
# File 'Library/Homebrew/utils.rb', line 558

def shell_profile
  Utils::Shell.profile
end

#superenv? ⇒ Boolean

Returns:

  • (Boolean) 


6
7
8
 
# File 'Library/Homebrew/extend/ENV.rb', line 6

def superenv?
  ARGV.env != "std" && Superenv.bin
end

#tap_and_name_comparison ⇒ Object 



562
563
564
565
566
567
568
569
570
571
572
 
# File 'Library/Homebrew/utils.rb', line 562

def tap_and_name_comparison
  proc do |a, b|
    if a.include?("/") && !b.include?("/")
      1
    elsif !a.include?("/") && b.include?("/")
      -1
    else
      a <=> b
    end
  end
end

#truncate_text_to_approximate_size(s, max_bytes, options = {}) ⇒ Object

Truncates a text string to fit within a byte size constraint, preserving character encoding validity. The returned string will be not much longer than the specified max_bytes, though the exact shortfall or overrun may vary.



464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
 
# File 'Library/Homebrew/utils.rb', line 464

def truncate_text_to_approximate_size(s, max_bytes, options = {})
  front_weight = options.fetch(:front_weight, 0.5)
  if front_weight < 0.0 || front_weight > 1.0
    raise "opts[:front_weight] must be between 0.0 and 1.0"
  end
  return s if s.bytesize <= max_bytes

  glue = "\n[...snip...]\n"
  max_bytes_in = [max_bytes - glue.bytesize, 1].max
  bytes = s.dup.force_encoding("BINARY")
  glue_bytes = glue.encode("BINARY")
  n_front_bytes = (max_bytes_in * front_weight).floor
  n_back_bytes = max_bytes_in - n_front_bytes
  if n_front_bytes.zero?
    front = bytes[1..0]
    back = bytes[-max_bytes_in..-1]
  elsif n_back_bytes.zero?
    front = bytes[0..(max_bytes_in - 1)]
    back = bytes[1..0]
  else
    front = bytes[0..(n_front_bytes - 1)]
    back = bytes[-n_back_bytes..-1]
  end
  out = front + glue_bytes + back
  out.force_encoding("UTF-8")
  out.encode!("UTF-16", invalid: :replace)
  out.encode!("UTF-8")
  out
end

#which(cmd, path = ENV["PATH"]) ⇒ Object 



307
308
309
310
311
312
313
314
315
316
317
318
319
 
# File 'Library/Homebrew/utils.rb', line 307

def which(cmd, path = ENV["PATH"])
  PATH.new(path).each do |p|
    begin
      pcmd = File.expand_path(cmd, p)
    rescue ArgumentError
      # File.expand_path will raise an ArgumentError if the path is malformed.
      # See https://github.com/Homebrew/legacy-homebrew/issues/32789
      next
    end
    return Pathname.new(pcmd) if File.file?(pcmd) && File.executable?(pcmd)
  end
  nil
end

#which_all(cmd, path = ENV["PATH"]) ⇒ Object 



321
322
323
324
325
326
327
328
329
330
331
332
 
# File 'Library/Homebrew/utils.rb', line 321

def which_all(cmd, path = ENV["PATH"])
  PATH.new(path).map do |p|
    begin
      pcmd = File.expand_path(cmd, p)
    rescue ArgumentError
      # File.expand_path will raise an ArgumentError if the path is malformed.
      # See https://github.com/Homebrew/legacy-homebrew/issues/32789
      next
    end
    Pathname.new(pcmd) if File.file?(pcmd) && File.executable?(pcmd)
  end.compact.uniq
end

#which_editor ⇒ Object 



334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
 
# File 'Library/Homebrew/utils.rb', line 334

def which_editor
  editor = ENV.values_at("HOMEBREW_EDITOR", "HOMEBREW_VISUAL")
              .compact
              .reject(&:empty?)
              .first
  return editor if editor

  # Find Atom, Sublime Text, Textmate, BBEdit / TextWrangler, or vim
  editor = %w[atom subl mate edit vim].find do |candidate|
    candidate if which(candidate, ENV["HOMEBREW_PATH"])
  end
  editor ||= "vim"

  opoo <<~EOS
    Using #{editor} because no editor was set in the environment.
    This may change in the future, so we recommend setting EDITOR,
    or HOMEBREW_EDITOR to your preferred text editor.
  EOS

  editor
end

#with_custom_locale(locale) ⇒ Object 



280
281
282
283
284
 
# File 'Library/Homebrew/utils.rb', line 280

def with_custom_locale(locale)
  with_env(LC_ALL: locale) do
    yield
  end
end

#with_env(hash) ⇒ Object

Calls the given block with the passed environment variables added to ENV, then restores ENV afterwards. Example: with_env(PATH: “/bin”) do

system "echo $PATH"

end

Note that this method is not thread-safe - other threads which happen to be scheduled during the block will also see these environment variables.



543
544
545
546
547
548
549
550
551
552
553
554
555
556
 
# File 'Library/Homebrew/utils.rb', line 543

def with_env(hash)
  old_values = {}
  begin
    hash.each do |key, value|
      key = key.to_s
      old_values[key] = ENV.delete(key)
      ENV[key] = value
    end

    yield if block_given?
  ensure
    ENV.update(old_values)
  end
end

#with_homebrew_path ⇒ Object 



274
275
276
277
278
 
# File 'Library/Homebrew/utils.rb', line 274

def with_homebrew_path
  with_env(PATH: PATH.new(ENV["HOMEBREW_PATH"])) do
    yield
  end
end