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Merge pull request #20152 from Homebrew/extend-os-class-methods

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Fix handling of class methods in `extend/os`
This commit is contained in:
Rylan Polster 2025-06-22 02:20:18 +00:00 committed by GitHub
commit 44dcb58f9e
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GPG Key ID: B5690EEEBB952194
17 changed files with 305 additions and 248 deletions
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5
Library/Homebrew/development_tools.rb
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@ -57,6 +57,11 @@ class DevelopmentTools
:clang
end
sig { returns(Version) }
def ld64_version
Version::NULL
end
# Get the Clang version.
#
# @api public

16
Library/Homebrew/extend/os/linux/cask/quarantine.rb
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@ -5,18 +5,20 @@ module OS
module Linux
module Cask
module Quarantine
extend T::Helpers
module ClassMethods
extend T::Helpers
requires_ancestor { ::Cask::Quarantine }
requires_ancestor { ::Cask::Quarantine }
sig { returns(Symbol) }
def self.check_quarantine_support = :linux
sig { returns(Symbol) }
def check_quarantine_support = :linux
sig { returns(T::Boolean) }
def self.available? = false
sig { returns(T::Boolean) }
def available? = false
end
end
end
end
end
Cask::Quarantine.prepend(OS::Linux::Cask::Quarantine)
Cask::Quarantine.singleton_class.prepend(OS::Linux::Cask::Quarantine::ClassMethods)

20
Library/Homebrew/extend/os/linux/compilers.rb
View File

@ -1,9 +1,21 @@
# typed: strict
# frozen_string_literal: true
class CompilerSelector
sig { returns(String) }
def self.preferred_gcc
OS::LINUX_PREFERRED_GCC_COMPILER_FORMULA
module OS
module Linux
module CompilerSelector
module ClassMethods
extend T::Helpers
requires_ancestor { T.class_of(::CompilerSelector) }
sig { returns(String) }
def preferred_gcc
OS::LINUX_PREFERRED_GCC_COMPILER_FORMULA
end
end
end
end
end
CompilerSelector.singleton_class.prepend(OS::Linux::CompilerSelector::ClassMethods)

106
Library/Homebrew/extend/os/linux/development_tools.rb
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@ -4,69 +4,71 @@
module OS
module Linux
module DevelopmentTools
extend T::Helpers
module ClassMethods
extend T::Helpers
requires_ancestor { ::DevelopmentTools }
requires_ancestor { ::DevelopmentTools }
sig { params(tool: T.any(String, Symbol)).returns(T.nilable(Pathname)) }
def locate(tool)
@locate ||= T.let({}, T.nilable(T::Hash[T.any(String, Symbol), Pathname]))
@locate.fetch(tool) do |key|
@locate[key] = if ::DevelopmentTools.needs_build_formulae? &&
(binutils_path = HOMEBREW_PREFIX/"opt/binutils/bin/#{tool}").executable?
binutils_path
elsif ::DevelopmentTools.needs_build_formulae? &&
(glibc_path = HOMEBREW_PREFIX/"opt/glibc/bin/#{tool}").executable?
glibc_path
elsif (homebrew_path = HOMEBREW_PREFIX/"bin/#{tool}").executable?
homebrew_path
elsif File.executable?(system_path = "/usr/bin/#{tool}")
Pathname.new system_path
sig { params(tool: T.any(String, Symbol)).returns(T.nilable(Pathname)) }
def locate(tool)
@locate ||= T.let({}, T.nilable(T::Hash[T.any(String, Symbol), Pathname]))
@locate.fetch(tool) do |key|
@locate[key] = if ::DevelopmentTools.needs_build_formulae? &&
(binutils_path = HOMEBREW_PREFIX/"opt/binutils/bin/#{tool}").executable?
binutils_path
elsif ::DevelopmentTools.needs_build_formulae? &&
(glibc_path = HOMEBREW_PREFIX/"opt/glibc/bin/#{tool}").executable?
glibc_path
elsif (homebrew_path = HOMEBREW_PREFIX/"bin/#{tool}").executable?
homebrew_path
elsif File.executable?(system_path = "/usr/bin/#{tool}")
Pathname.new system_path
end
end
end
end
sig { returns(Symbol) }
def default_compiler = :gcc
sig { returns(Symbol) }
def default_compiler = :gcc
sig { returns(T::Boolean) }
def needs_libc_formula?
return @needs_libc_formula unless @needs_libc_formula.nil?
sig { returns(T::Boolean) }
def needs_libc_formula?
return @needs_libc_formula unless @needs_libc_formula.nil?
@needs_libc_formula = T.let(OS::Linux::Glibc.below_ci_version?, T.nilable(T::Boolean))
@needs_libc_formula = !!@needs_libc_formula
end
# Keep this method around for now to make it easier to add this functionality later.
# rubocop:disable Lint/UselessMethodDefinition
sig { returns(Pathname) }
def host_gcc_path
# TODO: override this if/when we to pick the GCC based on e.g. the Ubuntu version.
super
end
# rubocop:enable Lint/UselessMethodDefinition
sig { returns(T::Boolean) }
def needs_compiler_formula?
return @needs_compiler_formula unless @needs_compiler_formula.nil?
@needs_compiler_formula = T.let(nil, T.nilable(T::Boolean))
@needs_compiler_formula = if host_gcc_path.exist?
::DevelopmentTools.gcc_version(host_gcc_path.to_s) < OS::LINUX_GCC_CI_VERSION
else
true
@needs_libc_formula = T.let(OS::Linux::Glibc.below_ci_version?, T.nilable(T::Boolean))
@needs_libc_formula = !!@needs_libc_formula
end
end
sig { returns(T::Hash[String, T.nilable(String)]) }
def build_system_info
super.merge({
"glibc_version" => OS::Linux::Glibc.version.to_s.presence,
"oldest_cpu_family" => ::Hardware.oldest_cpu.to_s,
})
# Keep this method around for now to make it easier to add this functionality later.
# rubocop:disable Lint/UselessMethodDefinition
sig { returns(Pathname) }
def host_gcc_path
# TODO: override this if/when we to pick the GCC based on e.g. the Ubuntu version.
super
end
# rubocop:enable Lint/UselessMethodDefinition
sig { returns(T::Boolean) }
def needs_compiler_formula?
return @needs_compiler_formula unless @needs_compiler_formula.nil?
@needs_compiler_formula = T.let(nil, T.nilable(T::Boolean))
@needs_compiler_formula = if host_gcc_path.exist?
::DevelopmentTools.gcc_version(host_gcc_path.to_s) < OS::LINUX_GCC_CI_VERSION
else
true
end
end
sig { returns(T::Hash[String, T.nilable(String)]) }
def build_system_info
super.merge({
"glibc_version" => OS::Linux::Glibc.version.to_s.presence,
"oldest_cpu_family" => ::Hardware.oldest_cpu.to_s,
})
end
end
end
end
end
DevelopmentTools.singleton_class.prepend(OS::Linux::DevelopmentTools)
DevelopmentTools.singleton_class.prepend(OS::Linux::DevelopmentTools::ClassMethods)

30
Library/Homebrew/extend/os/linux/simulate_system.rb
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@ -4,25 +4,27 @@
module OS
module Linux
module SimulateSystem
sig { returns(T.nilable(Symbol)) }
def os
@os ||= T.let(nil, T.nilable(Symbol))
return :macos if @os.blank? && Homebrew::EnvConfig.simulate_macos_on_linux?
module ClassMethods
sig { returns(T.nilable(Symbol)) }
def os
@os ||= T.let(nil, T.nilable(Symbol))
return :macos if @os.blank? && Homebrew::EnvConfig.simulate_macos_on_linux?
@os
end
@os
end
sig { returns(T::Boolean) }
def simulating_or_running_on_linux?
os.blank? || os == :linux
end
sig { returns(T::Boolean) }
def simulating_or_running_on_linux?
os.blank? || os == :linux
end
sig { returns(Symbol) }
def current_os
os || :linux
sig { returns(Symbol) }
def current_os
os || :linux
end
end
end
end
end
Homebrew::SimulateSystem.singleton_class.prepend(OS::Linux::SimulateSystem)
Homebrew::SimulateSystem.singleton_class.prepend(OS::Linux::SimulateSystem::ClassMethods)

2
Library/Homebrew/extend/os/linux/system_config.rb
View File

@ -51,7 +51,7 @@ module OS
out.puts "Host glibc: #{host_glibc_version}"
out.puts "#{::DevelopmentTools.host_gcc_path}: #{host_gcc_version}"
out.puts "/usr/bin/ruby: #{host_ruby_version}" if RUBY_PATH != HOST_RUBY_PATH
["glibc", CompilerSelector.preferred_gcc, OS::LINUX_PREFERRED_GCC_RUNTIME_FORMULA, "xorg"].each do |f|
["glibc", ::CompilerSelector.preferred_gcc, OS::LINUX_PREFERRED_GCC_RUNTIME_FORMULA, "xorg"].each do |f|
out.puts "#{f}: #{formula_linked_version(f)}"
end
end

134
Library/Homebrew/extend/os/mac/development_tools.rb
View File

@ -6,86 +6,88 @@ require "os/mac/xcode"
module OS
module Mac
module DevelopmentTools
extend T::Helpers
module ClassMethods
extend T::Helpers
requires_ancestor { ::DevelopmentTools }
requires_ancestor { ::DevelopmentTools }
sig { params(tool: T.any(String, Symbol)).returns(T.nilable(Pathname)) }
def locate(tool)
@locate ||= T.let({}, T.nilable(T::Hash[T.any(String, Symbol), Pathname]))
@locate.fetch(tool) do |key|
@locate[key] = if (located_tool = super(tool))
located_tool
else
path = Utils.popen_read("/usr/bin/xcrun", "-no-cache", "-find", tool, err: :close).chomp
Pathname.new(path) if File.executable?(path)
sig { params(tool: T.any(String, Symbol)).returns(T.nilable(Pathname)) }
def locate(tool)
@locate ||= T.let({}, T.nilable(T::Hash[T.any(String, Symbol), Pathname]))
@locate.fetch(tool) do |key|
@locate[key] = if (located_tool = super(tool))
located_tool
else
path = Utils.popen_read("/usr/bin/xcrun", "-no-cache", "-find", tool, err: :close).chomp
Pathname.new(path) if File.executable?(path)
end
end
end
end
# Checks if the user has any developer tools installed, either via Xcode
# or the CLT. Convenient for guarding against formula builds when building
# is impossible.
sig { returns(T::Boolean) }
def installed?
MacOS::Xcode.installed? || MacOS::CLT.installed?
end
# Checks if the user has any developer tools installed, either via Xcode
# or the CLT. Convenient for guarding against formula builds when building
# is impossible.
sig { returns(T::Boolean) }
def installed?
MacOS::Xcode.installed? || MacOS::CLT.installed?
end
sig { returns(Symbol) }
def default_compiler
:clang
end
sig { returns(Symbol) }
def default_compiler
:clang
end
sig { returns(Version) }
def self.ld64_version
@ld64_version ||= T.let(begin
json = Utils.popen_read("/usr/bin/ld", "-version_details")
if $CHILD_STATUS.success?
Version.parse(JSON.parse(json)["version"])
else
Version::NULL
end
end, T.nilable(Version))
end
sig { returns(Version) }
def ld64_version
@ld64_version ||= T.let(begin
json = Utils.popen_read("/usr/bin/ld", "-version_details")
if $CHILD_STATUS.success?
Version.parse(JSON.parse(json)["version"])
else
Version::NULL
end
end, T.nilable(Version))
end
sig { returns(T::Boolean) }
def curl_handles_most_https_certificates?
# The system Curl is too old for some modern HTTPS certificates on
# older macOS versions.
ENV["HOMEBREW_SYSTEM_CURL_TOO_OLD"].nil?
end
sig { returns(T::Boolean) }
def curl_handles_most_https_certificates?
# The system Curl is too old for some modern HTTPS certificates on
# older macOS versions.
ENV["HOMEBREW_SYSTEM_CURL_TOO_OLD"].nil?
end
sig { returns(T::Boolean) }
def subversion_handles_most_https_certificates?
# The system Subversion is too old for some HTTPS certificates on
# older macOS versions.
MacOS.version >= :sierra
end
sig { returns(T::Boolean) }
def subversion_handles_most_https_certificates?
# The system Subversion is too old for some HTTPS certificates on
# older macOS versions.
MacOS.version >= :sierra
end
sig { returns(String) }
def installation_instructions
MacOS::CLT.installation_instructions
end
sig { returns(String) }
def installation_instructions
MacOS::CLT.installation_instructions
end
sig { returns(String) }
def custom_installation_instructions
<<~EOS
Install GNU's GCC:
brew install gcc
EOS
end
sig { returns(String) }
def custom_installation_instructions
<<~EOS
Install GNU's GCC:
brew install gcc
EOS
end
sig { returns(T::Hash[String, T.nilable(String)]) }
def build_system_info
build_info = {
"xcode" => MacOS::Xcode.version.to_s.presence,
"clt" => MacOS::CLT.version.to_s.presence,
"preferred_perl" => MacOS.preferred_perl_version,
}
super.merge build_info
sig { returns(T::Hash[String, T.nilable(String)]) }
def build_system_info
build_info = {
"xcode" => MacOS::Xcode.version.to_s.presence,
"clt" => MacOS::CLT.version.to_s.presence,
"preferred_perl" => MacOS.preferred_perl_version,
}
super.merge build_info
end
end
end
end
end
DevelopmentTools.singleton_class.prepend(OS::Mac::DevelopmentTools)
DevelopmentTools.singleton_class.prepend(OS::Mac::DevelopmentTools::ClassMethods)

2
Library/Homebrew/extend/os/mac/diagnostic.rb
View File

@ -145,7 +145,7 @@ module OS
return
end
oclp_support_tier = Hardware::CPU.features.include?(:pclmulqdq) ? 2 : 3
oclp_support_tier = ::Hardware::CPU.features.include?(:pclmulqdq) ? 2 : 3
<<~EOS
You have booted macOS using OpenCore Legacy Patcher.

2
Library/Homebrew/extend/os/mac/extend/ENV/shared.rb
View File

@ -41,7 +41,7 @@ module OS
# This is supported starting Xcode 13, which ships ld64-711.
# https://developer.apple.com/documentation/xcode-release-notes/xcode-13-release-notes
# https://en.wikipedia.org/wiki/Xcode#Xcode_11.0_-_14.x_(since_SwiftUI_framework)_2
OS::Mac::DevelopmentTools.ld64_version >= 711
::DevelopmentTools.ld64_version >= 711
end
end
end

4
Library/Homebrew/extend/os/mac/extend/ENV/super.rb
View File

@ -149,11 +149,11 @@ module OS
no_fixup_chains
# Strip build prefixes from linker where supported, for deterministic builds.
append_to_cccfg "o" if OS::Mac::DevelopmentTools.ld64_version >= 512
append_to_cccfg "o" if ::DevelopmentTools.ld64_version >= 512
# Pass `-ld_classic` whenever the linker is invoked with `-dead_strip_dylibs`
# on `ld` versions that don't properly handle that option.
return unless OS::Mac::DevelopmentTools.ld64_version.between?("1015.7", "1022.1")
return unless ::DevelopmentTools.ld64_version.between?("1015.7", "1022.1")
append_to_cccfg "c"
end

76
Library/Homebrew/extend/os/mac/hardware/cpu.rb
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@ -7,56 +7,58 @@ module OS
module Mac
module Hardware
module CPU
extend T::Helpers
module ClassMethods
extend T::Helpers
# These methods use info spewed out by sysctl.
# Look in <mach/machine.h> for decoding info.
def type
case ::Hardware::CPU.sysctl_int("hw.cputype")
when MachO::Headers::CPU_TYPE_I386
:intel
when MachO::Headers::CPU_TYPE_ARM64
:arm
else
:dunno
# These methods use info spewed out by sysctl.
# Look in <mach/machine.h> for decoding info.
def type
case ::Hardware::CPU.sysctl_int("hw.cputype")
when MachO::Headers::CPU_TYPE_I386
:intel
when MachO::Headers::CPU_TYPE_ARM64
:arm
else
:dunno
end
end
end
def family
if ::Hardware::CPU.arm?
::Hardware::CPU.arm_family
elsif ::Hardware::CPU.intel?
::Hardware::CPU.intel_family
else
:dunno
def family
if ::Hardware::CPU.arm?
::Hardware::CPU.arm_family
elsif ::Hardware::CPU.intel?
::Hardware::CPU.intel_family
else
:dunno
end
end
end
# True when running under an Intel-based shell via Rosetta 2 on an
# Apple Silicon Mac. This can be detected via seeing if there's a
# conflict between what `uname` reports and the underlying `sysctl` flags,
# since the `sysctl` flags don't change behaviour under Rosetta 2.
def in_rosetta2?
::Hardware::CPU.sysctl_bool("sysctl.proc_translated")
end
# True when running under an Intel-based shell via Rosetta 2 on an
# Apple Silicon Mac. This can be detected via seeing if there's a
# conflict between what `uname` reports and the underlying `sysctl` flags,
# since the `sysctl` flags don't change behaviour under Rosetta 2.
def in_rosetta2?
::Hardware::CPU.sysctl_bool("sysctl.proc_translated")
end
def self.features
@features ||= ::Hardware::CPU.sysctl_n(
"machdep.cpu.features",
"machdep.cpu.extfeatures",
"machdep.cpu.leaf7_features",
).split.map { |s| s.downcase.to_sym }
end
def features
@features ||= ::Hardware::CPU.sysctl_n(
"machdep.cpu.features",
"machdep.cpu.extfeatures",
"machdep.cpu.leaf7_features",
).split.map { |s| s.downcase.to_sym }
end
def sse4?
::Hardware::CPU.sysctl_bool("hw.optional.sse4_1")
def sse4?
::Hardware::CPU.sysctl_bool("hw.optional.sse4_1")
end
end
end
end
end
end
Hardware::CPU.singleton_class.prepend(OS::Mac::Hardware::CPU)
Hardware::CPU.singleton_class.prepend(OS::Mac::Hardware::CPU::ClassMethods)
module Hardware
class CPU

25
Library/Homebrew/extend/os/mac/language/java.rb
View File

@ -1,13 +1,26 @@
# typed: strict
# frozen_string_literal: true
module Language
module Java
def self.java_home(version = nil)
openjdk = find_openjdk_formula(version)
return unless openjdk
module OS
module Mac
module Language
module Java
module ClassMethods
extend T::Helpers
openjdk.opt_libexec/"openjdk.jdk/Contents/Home"
requires_ancestor { T.class_of(::Language::Java) }
sig { params(version: T.nilable(String)).returns(T.nilable(Pathname)) }
def java_home(version = nil)
openjdk = find_openjdk_formula(version)
return unless openjdk
openjdk.opt_libexec/"openjdk.jdk/Contents/Home"
end
end
end
end
end
end
Language::Java.singleton_class.prepend(OS::Mac::Language::Java::ClassMethods)

62
Library/Homebrew/extend/os/mac/readall.rb
View File

@ -4,44 +4,46 @@
module OS
module Mac
module Readall
extend T::Helpers
module ClassMethods
extend T::Helpers
requires_ancestor { Kernel }
requires_ancestor { Kernel }
sig { params(tap: ::Tap, os_name: T.nilable(Symbol), arch: T.nilable(Symbol)).returns(T::Boolean) }
def valid_casks?(tap, os_name: nil, arch: ::Hardware::CPU.type)
return true if os_name == :linux
sig { params(tap: ::Tap, os_name: T.nilable(Symbol), arch: T.nilable(Symbol)).returns(T::Boolean) }
def valid_casks?(tap, os_name: nil, arch: ::Hardware::CPU.type)
return true if os_name == :linux
current_macos_version = if os_name.is_a?(Symbol)
MacOSVersion.from_symbol(os_name)
else
MacOS.version
end
success = T.let(true, T::Boolean)
tap.cask_files.each do |file|
cask = ::Cask::CaskLoader.load(file)
# Fine to have missing URLs for unsupported macOS
macos_req = cask.depends_on.macos
next if macos_req&.version && Array(macos_req.version).none? do |macos_version|
current_macos_version.compare(macos_req.comparator, macos_version)
current_macos_version = if os_name.is_a?(Symbol)
MacOSVersion.from_symbol(os_name)
else
MacOS.version
end
raise "Missing URL" if cask.url.nil?
rescue Interrupt
raise
# Handle all possible exceptions reading Casks.
rescue Exception => e # rubocop:disable Lint/RescueException
os_and_arch = "macOS #{current_macos_version} on #{arch}"
onoe "Invalid cask (#{os_and_arch}): #{file}"
$stderr.puts e
success = false
success = T.let(true, T::Boolean)
tap.cask_files.each do |file|
cask = ::Cask::CaskLoader.load(file)
# Fine to have missing URLs for unsupported macOS
macos_req = cask.depends_on.macos
next if macos_req&.version && Array(macos_req.version).none? do |macos_version|
current_macos_version.compare(macos_req.comparator, macos_version)
end
raise "Missing URL" if cask.url.nil?
rescue Interrupt
raise
# Handle all possible exceptions reading Casks.
rescue Exception => e # rubocop:disable Lint/RescueException
os_and_arch = "macOS #{current_macos_version} on #{arch}"
onoe "Invalid cask (#{os_and_arch}): #{file}"
$stderr.puts e
success = false
end
success
end
success
end
end
end
end
Readall.singleton_class.prepend(OS::Mac::Readall)
Readall.singleton_class.prepend(OS::Mac::Readall::ClassMethods)

20
Library/Homebrew/extend/os/mac/sandbox.rb
View File

@ -1,9 +1,21 @@
# typed: strict
# frozen_string_literal: true
class Sandbox
sig { returns(T::Boolean) }
def self.available?
File.executable?(SANDBOX_EXEC)
module OS
module Mac
module Sandbox
module ClassMethods
extend T::Helpers
requires_ancestor { T.class_of(::Sandbox) }
sig { returns(T::Boolean) }
def available?
File.executable?(::Sandbox::SANDBOX_EXEC)
end
end
end
end
end
Sandbox.singleton_class.prepend(OS::Mac::Sandbox::ClassMethods)

20
Library/Homebrew/extend/os/mac/simulate_system.rb
View File

@ -4,19 +4,21 @@
module OS
module Mac
module SimulateSystem
sig { returns(T::Boolean) }
def simulating_or_running_on_macos?
return true if Homebrew::SimulateSystem.os.blank?
module ClassMethods
sig { returns(T::Boolean) }
def simulating_or_running_on_macos?
return true if Homebrew::SimulateSystem.os.blank?
[:macos, *MacOSVersion::SYMBOLS.keys].include?(Homebrew::SimulateSystem.os)
end
[:macos, *MacOSVersion::SYMBOLS.keys].include?(Homebrew::SimulateSystem.os)
end
sig { returns(Symbol) }
def current_os
::Homebrew::SimulateSystem.os || MacOS.version.to_sym
sig { returns(Symbol) }
def current_os
::Homebrew::SimulateSystem.os || MacOS.version.to_sym
end
end
end
end
end
Homebrew::SimulateSystem.singleton_class.prepend(OS::Mac::SimulateSystem)
Homebrew::SimulateSystem.singleton_class.prepend(OS::Mac::SimulateSystem::ClassMethods)

28
Library/Homebrew/extend/os/mac/utils/socket.rb
View File

@ -7,24 +7,26 @@ module OS
module Mac
# Wrapper around UNIXSocket to allow > 104 characters on macOS.
module UNIXSocketExt
extend T::Helpers
module ClassMethods
extend T::Helpers
requires_ancestor { Kernel }
requires_ancestor { Kernel }
sig { params(path: String).returns(String) }
def sockaddr_un(path)
if path.bytesize > 252 # largest size that can fit into a single-byte length
raise ArgumentError, "too long unix socket path (#{path.bytesize} bytes given but 252 bytes max)"
sig { params(path: String).returns(String) }
def sockaddr_un(path)
if path.bytesize > 252 # largest size that can fit into a single-byte length
raise ArgumentError, "too long unix socket path (#{path.bytesize} bytes given but 252 bytes max)"
end
[
path.bytesize + 3, # = length (1 byte) + family (1 byte) + path (variable) + null terminator (1 byte)
1, # AF_UNIX
path,
].pack("CCZ*")
end
[
path.bytesize + 3, # = length (1 byte) + family (1 byte) + path (variable) + null terminator (1 byte)
1, # AF_UNIX
path,
].pack("CCZ*")
end
end
end
end
Utils::UNIXSocketExt.singleton_class.prepend(OS::Mac::UNIXSocketExt)
Utils::UNIXSocketExt.singleton_class.prepend(OS::Mac::UNIXSocketExt::ClassMethods)

1
Library/Homebrew/sandbox.rb
View File

@ -10,7 +10,6 @@ require "utils/fork"
# Helper class for running a sub-process inside of a sandboxed environment.
class Sandbox
SANDBOX_EXEC = "/usr/bin/sandbox-exec"
private_constant :SANDBOX_EXEC
# This is defined in the macOS SDK but Ruby unfortunately does not expose it.
# This value can be found by compiling a C program that prints TIOCSCTTY.