Rename MacOS to OS::Mac

1 files changed, 275 insertions, 0 deletions

diff --git a/Library/Homebrew/os/mac.rb b/Library/Homebrew/os/mac.rb
new file mode 100644
index 000000000..d4e8e722b
--- /dev/null
+++ b/Library/Homebrew/os/mac.rb
@@ -0,0 +1,275 @@
+require 'hardware'
+require 'os/mac/version'
+
+module OS
+  module Mac
+    extend self
+
+    ::MacOS = self # compatibility
+
+    # This can be compared to numerics, strings, or symbols
+    # using the standard Ruby Comparable methods.
+    def version
+      @version ||= Version.new(MACOS_VERSION)
+    end
+
+    def cat
+      version.to_sym
+    end
+
+    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.to_s) 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
+        # This also needs to be queried if xcrun won't work, e.g. CLT-only
+        elsif File.executable?(path = "#{HOMEBREW_PREFIX}/bin/#{tool}")
+          Pathname.new path
+        else
+          # If the tool isn't in /usr/bin or from Homebrew,
+          # then we first try to use xcrun to find it.
+          # If it's not there, or xcode-select is misconfigured, we have to
+          # look in dev_tools_path, and finally in xctoolchain_path, because the
+          # tools were split over two locations beginning with Xcode 4.3+.
+          xcrun_path = unless Xcode.bad_xcode_select_path?
+            path = `/usr/bin/xcrun -find #{tool} 2>/dev/null`.chomp
+            # If xcrun finds a superenv tool then discard the result.
+            path unless path.include?("Library/ENV")
+          end
+
+          paths = %W[#{xcrun_path}
+                    #{dev_tools_path}/#{tool}
+                    #{xctoolchain_path}/usr/bin/#{tool}]
+          paths.map { |p| Pathname.new(p) }.find { |p| p.executable? }
+        end
+      end
+    end
+
+    def dev_tools_path
+      @dev_tools_path ||= if tools_in_prefix? CLT::STANDALONE_PKG_PATH
+        # In 10.9 the CLT moved from /usr into /Library/Developer/CommandLineTools.
+        Pathname.new "#{CLT::STANDALONE_PKG_PATH}/usr/bin"
+      elsif tools_in_prefix? "/"
+        # probably a safe enough assumption (the unix way)
+        Pathname.new "/usr/bin"
+      elsif not Xcode.bad_xcode_select_path? and not `/usr/bin/xcrun -find make 2>/dev/null`.empty?
+        # Note that the exit status of system "xcrun foo" isn't always accurate
+        # Wherever "make" is there are the dev tools.
+        Pathname.new(`/usr/bin/xcrun -find make`.chomp).dirname
+      elsif File.exist? "#{Xcode.prefix}/usr/bin/make"
+        # cc stopped existing with Xcode 4.3, there are c89 and c99 options though
+        Pathname.new "#{Xcode.prefix}/usr/bin"
+      end
+    end
+
+    def tools_in_prefix?(prefix)
+      %w{cc make}.all? { |tool| File.executable? "#{prefix}/usr/bin/#{tool}" }
+    end
+
+    def xctoolchain_path
+      # As of Xcode 4.3, some tools are located in the "xctoolchain" directory
+      @xctoolchain_path ||= begin
+        path = Pathname.new("#{Xcode.prefix}/Toolchains/XcodeDefault.xctoolchain")
+        # If only the CLT are installed, all tools will be under dev_tools_path,
+        # this path won't exist, and xctoolchain_path will be nil.
+        path if path.exist?
+      end
+    end
+
+    def sdk_path(v = version)
+      (@sdk_path ||= {}).fetch(v.to_s) do |key|
+        opts = []
+        # First query Xcode itself
+        opts << `#{locate('xcodebuild')} -version -sdk macosx#{v} Path 2>/dev/null`.chomp unless Xcode.bad_xcode_select_path?
+        # Xcode.prefix is pretty smart, so lets look inside to find the sdk
+        opts << "#{Xcode.prefix}/Platforms/MacOSX.platform/Developer/SDKs/MacOSX#{v}.sdk"
+        # Xcode < 4.3 style
+        opts << "/Developer/SDKs/MacOSX#{v}.sdk"
+        @sdk_path[key] = opts.map { |a| Pathname.new(a) }.detect(&:directory?)
+      end
+    end
+
+    def default_cc
+      cc = locate 'cc'
+      Pathname.new(cc).realpath.basename.to_s rescue nil
+    end
+
+    def default_compiler
+      case default_cc
+        when /^gcc/ then :gcc
+        when /^llvm/ then :llvm
+        when "clang" then :clang
+        else
+          # guess :(
+          if Xcode.version >= "4.3"
+            :clang
+          elsif Xcode.version >= "4.2"
+            :llvm
+          else
+            :gcc
+          end
+      end
+    end
+
+    def default_cxx_stdlib
+      version >= :mavericks ? :libcxx : :libstdcxx
+    end
+
+    def gcc_40_build_version
+      @gcc_40_build_version ||=
+        if (path = locate("gcc-4.0"))
+          %x{#{path} --version}[/build (\d{4,})/, 1].to_i
+        end
+    end
+    alias_method :gcc_4_0_build_version, :gcc_40_build_version
+
+    def gcc_42_build_version
+      @gcc_42_build_version ||=
+        if (path = locate("gcc-4.2")) && path.realpath.basename.to_s !~ /^llvm/
+          %x{#{path} --version}[/build (\d{4,})/, 1].to_i
+        end
+    end
+    alias_method :gcc_build_version, :gcc_42_build_version
+
+    def llvm_build_version
+      # for Xcode 3 on OS X 10.5 this will not exist
+      # NOTE may not be true anymore but we can't test
+      @llvm_build_version ||=
+        if (path = locate("llvm-gcc")) && path.realpath.basename.to_s !~ /^clang/
+          %x{#{path} --version}[/LLVM build (\d{4,})/, 1].to_i
+        end
+    end
+
+    def clang_version
+      @clang_version ||=
+        if (path = locate("clang"))
+          %x{#{path} --version}[/(?:clang|LLVM) version (\d\.\d)/, 1]
+        end
+    end
+
+    def clang_build_version
+      @clang_build_version ||=
+        if (path = locate("clang"))
+          %x{#{path} --version}[%r[clang-(\d{2,})], 1].to_i
+        end
+    end
+
+    def non_apple_gcc_version(cc)
+      return unless path = locate(cc)
+
+      ivar = "@#{cc.gsub(/(-|\.)/, '')}_version"
+      return instance_variable_get(ivar) if instance_variable_defined?(ivar)
+
+      `#{path} --version` =~ /gcc-\d.\d \(GCC\) (\d\.\d\.\d)/
+      instance_variable_set(ivar, $1)
+    end
+
+    # See these issues for some history:
+    # http://github.com/mxcl/homebrew/issues/#issue/13
+    # http://github.com/mxcl/homebrew/issues/#issue/41
+    # http://github.com/mxcl/homebrew/issues/#issue/48
+    def macports_or_fink
+      paths = []
+
+      # First look in the path because MacPorts is relocatable and Fink
+      # may become relocatable in the future.
+      %w{port fink}.each do |ponk|
+        path = which(ponk)
+        paths << path unless path.nil?
+      end
+
+      # Look in the standard locations, because even if port or fink are
+      # not in the path they can still break builds if the build scripts
+      # have these paths baked in.
+      %w{/sw/bin/fink /opt/local/bin/port}.each do |ponk|
+        path = Pathname.new(ponk)
+        paths << path if path.exist?
+      end
+
+      # Finally, some users make their MacPorts or Fink directorie
+      # read-only in order to try out Homebrew, but this doens't work as
+      # some build scripts error out when trying to read from these now
+      # unreadable paths.
+      %w{/sw /opt/local}.map { |p| Pathname.new(p) }.each do |path|
+        paths << path if path.exist? && !path.readable?
+      end
+
+      paths.uniq
+    end
+
+    def prefer_64_bit?
+      Hardware::CPU.is_64_bit? and version != :leopard
+    end
+
+    def preferred_arch
+      @preferred_arch ||= if prefer_64_bit?
+        Hardware::CPU.arch_64_bit
+      else
+        Hardware::CPU.arch_32_bit
+      end
+    end
+
+    STANDARD_COMPILERS = {
+      "3.1.4" => { :gcc_40_build => 5493, :gcc_42_build => 5577 },
+      "3.2.6" => { :gcc_40_build => 5494, :gcc_42_build => 5666, :llvm_build => 2335, :clang => "1.7", :clang_build => 77 },
+      "4.0"   => { :gcc_40_build => 5494, :gcc_42_build => 5666, :llvm_build => 2335, :clang => "2.0", :clang_build => 137 },
+      "4.0.1" => { :gcc_40_build => 5494, :gcc_42_build => 5666, :llvm_build => 2335, :clang => "2.0", :clang_build => 137 },
+      "4.0.2" => { :gcc_40_build => 5494, :gcc_42_build => 5666, :llvm_build => 2335, :clang => "2.0", :clang_build => 137 },
+      "4.2"   => { :llvm_build => 2336, :clang => "3.0", :clang_build => 211 },
+      "4.3"   => { :llvm_build => 2336, :clang => "3.1", :clang_build => 318 },
+      "4.3.1" => { :llvm_build => 2336, :clang => "3.1", :clang_build => 318 },
+      "4.3.2" => { :llvm_build => 2336, :clang => "3.1", :clang_build => 318 },
+      "4.3.3" => { :llvm_build => 2336, :clang => "3.1", :clang_build => 318 },
+      "4.4"   => { :llvm_build => 2336, :clang => "4.0", :clang_build => 421 },
+      "4.4.1" => { :llvm_build => 2336, :clang => "4.0", :clang_build => 421 },
+      "4.5"   => { :llvm_build => 2336, :clang => "4.1", :clang_build => 421 },
+      "4.5.1" => { :llvm_build => 2336, :clang => "4.1", :clang_build => 421 },
+      "4.5.2" => { :llvm_build => 2336, :clang => "4.1", :clang_build => 421 },
+      "4.6"   => { :llvm_build => 2336, :clang => "4.2", :clang_build => 425 },
+      "4.6.1" => { :llvm_build => 2336, :clang => "4.2", :clang_build => 425 },
+      "4.6.2" => { :llvm_build => 2336, :clang => "4.2", :clang_build => 425 },
+      "4.6.3" => { :llvm_build => 2336, :clang => "4.2", :clang_build => 425 },
+      "5.0"   => { :clang => "5.0", :clang_build => 500 },
+      "5.0.1" => { :clang => "5.0", :clang_build => 500 },
+    }
+
+    def compilers_standard?
+      STANDARD_COMPILERS.fetch(Xcode.version.to_s).all? do |method, build|
+        send(:"#{method}_version") == build
+      end
+    rescue IndexError
+      onoe <<-EOS.undent
+        Homebrew doesn't know what compiler versions ship with your version
+        of Xcode (#{Xcode.version}). Please `brew update` and if that doesn't help, file
+        an issue with the output of `brew --config`:
+          https://github.com/mxcl/homebrew/issues
+
+        Thanks!
+      EOS
+    end
+
+    def app_with_bundle_id id
+      path = mdfind(id).first
+      Pathname.new(path) unless path.nil? or path.empty?
+    end
+
+    def mdfind id
+      return [] unless OS.mac?
+      (@mdfind ||= {}).fetch(id.to_s) do |key|
+        @mdfind[key] = `/usr/bin/mdfind "kMDItemCFBundleIdentifier == '#{key}'"`.split("\n")
+      end
+    end
+
+    def pkgutil_info id
+      (@pkginfo ||= {}).fetch(id.to_s) do |key|
+        @pkginfo[key] = `/usr/sbin/pkgutil --pkg-info "#{key}" 2>/dev/null`.strip
+      end
+    end
+  end
+end
+
+require 'os/mac/xcode'
+require 'os/mac/xquartz'