Class: DevelopmentTools

Inherits:
Object show all
Defined in:
development_tools.rb

Overview

Helper class for gathering information about development tools.

Class Method Summary collapse

Class Method Details

.build_system_info ⇒ Hash{String => String, nil}

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

Returns:



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# File 'development_tools.rb', line 178

def build_system_info
  {
    "os"         => HOMEBREW_SYSTEM,
    "os_version" => OS_VERSION,
    "cpu_family" => Hardware::CPU.family.to_s,
  }
end

.ca_file_handles_most_https_certificates? ⇒ Boolean

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

Returns:

  • (Boolean) 


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# File 'development_tools.rb', line 150

def ca_file_handles_most_https_certificates?
  # The system CA file is too old for some modern HTTPS certificates on
  # older OS versions.
  ENV["HOMEBREW_SYSTEM_CA_CERTIFICATES_TOO_OLD"].nil?
end

.ca_file_substitution_required? ⇒ Boolean

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

Returns:

  • (Boolean) 


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# File 'development_tools.rb', line 162

def ca_file_substitution_required?
  (!ca_file_handles_most_https_certificates? || ENV["HOMEBREW_FORCE_BREWED_CA_CERTIFICATES"].present?) &&
    !(HOMEBREW_PREFIX/"etc/ca-certificates/cert.pem").exist?
end

.clang_build_version ⇒ Version

Get the Clang build version.

Returns:



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# File 'development_tools.rb', line 79

def clang_build_version
  @clang_build_version ||= T.let(
    if (path = locate("clang")) &&
      (build_version = `#{path} --version`[%r{clang(-| version [^ ]+ \(tags/RELEASE_)(\d{2,})}, 2])
      Version.new(build_version)
    else
      Version::NULL
    end, T.nilable(Version)
  )
end

.clang_version ⇒ Version

Get the Clang version.

Returns:



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# File 'development_tools.rb', line 64

def clang_version
  @clang_version ||= T.let(
    if (path = locate("clang")) &&
       (build_version = `#{path} --version`[/(?:clang|LLVM) version (\d+\.\d(?:\.\d)?)/, 1])
      Version.new(build_version)
    else
      Version::NULL
    end, T.nilable(Version)
  )
end

.clear_version_cache ⇒ void

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

This method returns an undefined value.



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# File 'development_tools.rb', line 129

def clear_version_cache
  @clang_version = @clang_build_version = T.let(nil, T.nilable(Version))
  @gcc_version = T.let({}, T.nilable(T::Hash[String, Version]))
end

.curl_handles_most_https_certificates? ⇒ Boolean

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

Returns:

  • (Boolean) 


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# File 'development_tools.rb', line 157

def curl_handles_most_https_certificates?
  true
end

.curl_substitution_required? ⇒ Boolean

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

Returns:

  • (Boolean) 


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# File 'development_tools.rb', line 168

def curl_substitution_required?
  !curl_handles_most_https_certificates? && !HOMEBREW_BREWED_CURL_PATH.exist?
end

.custom_installation_instructions ⇒ 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:



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# File 'development_tools.rb', line 40

def custom_installation_instructions
  installation_instructions
end

.default_compiler ⇒ Symbol

Get the default C compiler.

Returns:



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# File 'development_tools.rb', line 56

def default_compiler
  :clang
end

.gcc_version(cc) ⇒ Version

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Get the GCC version.

Parameters:

Returns:



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# File 'development_tools.rb', line 114

def gcc_version(cc)
  (@gcc_version ||= T.let({}, T.nilable(T::Hash[String, Version]))).fetch(cc) do
    path = HOMEBREW_PREFIX/"opt/#{CompilerSelector.preferred_gcc}/bin"/cc
    path = locate(cc) unless path.exist?
    version = if path &&
                 (build_version = `#{path} --version`[/gcc(?:(?:-\d+(?:\.\d)?)? \(.+\))? (\d+\.\d\.\d)/, 1])
      Version.new(build_version)
    else
      Version::NULL
    end
    @gcc_version[cc] = version
  end
end

.host_gcc_path ⇒ Pathname

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

Returns:



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# File 'development_tools.rb', line 106

def host_gcc_path
  Pathname.new("/usr/bin/gcc")
end

.insecure_download_warning(resource) ⇒ String

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

Parameters:

Returns:



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# File 'development_tools.rb', line 45

def insecure_download_warning(resource)
  package = curl_handles_most_https_certificates? ? "ca-certificates" : "curl"
  "Using `--insecure` with curl to download #{resource} because we need it to run " \
    "`brew install #{package}` in order to download securely from now on. " \
    "Checksums will still be verified."
end

.installation_instructions ⇒ 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:



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# File 'development_tools.rb', line 35

def installation_instructions
  "Install Clang or run `brew install gcc`."
end

.installed? ⇒ Boolean

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

Returns:

  • (Boolean) 


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# File 'development_tools.rb', line 30

def installed?
  locate("clang").present? || locate("gcc").present?
end

.llvm_clang_build_version ⇒ Version

Get the LLVM Clang build version.

Returns:



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# File 'development_tools.rb', line 94

def llvm_clang_build_version
  @llvm_clang_build_version ||= T.let(begin
    path = Formulary.factory("llvm").opt_prefix/"bin/clang"
    if path.executable? && (build_version = `#{path} --version`[/clang version (\d+\.\d\.\d)/, 1])
      Version.new(build_version)
    else
      Version::NULL
    end
  end, T.nilable(Version))
end

.locate(tool) ⇒ Pathname?

Locate a development tool.

Parameters:

Returns:



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# File 'development_tools.rb', line 15

def locate(tool)
  # Don't call tools (cc, make, strip, etc.) directly!
  # Give the name of the binary you look for as a string to this method
  # in order to get the full path back as a Pathname.
  (@locate ||= T.let({}, T.nilable(T::Hash[T.any(String, Symbol), T.untyped]))).fetch(tool) do |key|
    @locate[key] = if File.executable?((path = "/usr/bin/#{tool}"))
      Pathname.new path
    # Homebrew GCCs most frequently; much faster to check this before xcrun
    elsif (path = HOMEBREW_PREFIX/"bin/#{tool}").executable?
      path
    end
  end
end

.needs_build_formulae? ⇒ Boolean

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

Returns:

  • (Boolean) 


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# File 'development_tools.rb', line 135

def needs_build_formulae?
  needs_libc_formula? || needs_compiler_formula?
end

.needs_compiler_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.

Returns:

  • (Boolean) 


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# File 'development_tools.rb', line 145

def needs_compiler_formula?
  false
end

.needs_libc_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.

Returns:

  • (Boolean) 


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# File 'development_tools.rb', line 140

def needs_libc_formula?
  false
end

.subversion_handles_most_https_certificates? ⇒ Boolean

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

Returns:

  • (Boolean) 


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# File 'development_tools.rb', line 173

def subversion_handles_most_https_certificates?
  true
end