brew/Library/Homebrew/development_tools.rb
2017-05-31 19:53:41 +02:00

128 lines
3.4 KiB
Ruby

# @private
class DevelopmentTools
class << self
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 ||= {}).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
def installed?
which("clang") || which("gcc")
end
def installation_instructions
"Install Clang or brew install gcc"
end
alias custom_installation_instructions installation_instructions
def default_cc
cc = DevelopmentTools.locate "cc"
begin
cc.realpath.basename.to_s
rescue
nil
end
end
def default_compiler
:clang
end
def gcc_4_0_build_version
@gcc_4_0_build_version ||= begin
if (path = locate("gcc-4.0")) &&
build_version = `#{path} --version 2>/dev/null`[/build (\d{4,})/, 1]
Version.new build_version
else
Version::NULL
end
end
end
def gcc_4_2_build_version
@gcc_4_2_build_version ||= begin
gcc = locate("gcc-4.2") || HOMEBREW_PREFIX.join("opt/apple-gcc42/bin/gcc-4.2")
if gcc.exist? && !gcc.realpath.basename.to_s.start_with?("llvm") &&
build_version = `#{gcc} --version 2>/dev/null`[/build (\d{4,})/, 1]
Version.new build_version
else
Version::NULL
end
end
end
def clang_version
@clang_version ||= begin
if (path = locate("clang")) &&
build_version = `#{path} --version`[/(?:clang|LLVM) version (\d\.\d)/, 1]
Version.new build_version
else
Version::NULL
end
end
end
def clang_build_version
@clang_build_version ||= begin
if (path = locate("clang")) &&
build_version = `#{path} --version`[/clang-(\d{2,})/, 1]
Version.new build_version
else
Version::NULL
end
end
end
def llvm_clang_build_version
@llvm_clang_build_version ||= 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
end
def non_apple_gcc_version(cc)
(@non_apple_gcc_version ||= {}).fetch(cc) do
path = HOMEBREW_PREFIX.join("opt", "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
@non_apple_gcc_version[cc] = version
end
end
def clear_version_cache
@gcc_4_0_build_version = @gcc_4_2_build_version = nil
@clang_version = @clang_build_version = nil
@non_apple_gcc_version = {}
end
def curl_handles_most_https_homepages?
true
end
def subversion_handles_most_https_certificates?
true
end
end
end
require "extend/os/development_tools"