60 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			60 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| require "os/mac/version"
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| 
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| module OS
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|   module Mac
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|     class SDK
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|       attr_reader :version, :path
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| 
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|       def initialize(version, path)
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|         @version = OS::Mac::Version.new version
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|         @path = Pathname.new(path)
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|       end
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|     end
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| 
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|     class SDKLocator
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|       class NoSDKError < StandardError; end
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| 
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|       def sdk_for(v)
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|         path = sdk_paths[v]
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|         raise NoSDKError if path.nil?
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| 
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|         SDK.new v, path
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|       end
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| 
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|       def latest_sdk
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|         return if sdk_paths.empty?
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| 
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|         v, path = sdk_paths.max {|a, b| OS::Mac::Version.new(a[0]) <=> OS::Mac::Version.new(b[0])}
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|         SDK.new v, path
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|       end
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| 
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|       private
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| 
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|       def sdk_paths
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|         @sdk_paths ||= begin
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|           # Xcode.prefix is pretty smart, so let's look inside to find the sdk
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|           sdk_prefix = "#{Xcode.prefix}/Platforms/MacOSX.platform/Developer/SDKs"
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|           # Xcode < 4.3 style
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|           sdk_prefix = "/Developer/SDKs" unless File.directory? sdk_prefix
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|           # Finally query Xcode itself (this is slow, so check it last)
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|           sdk_prefix = File.join(Utils.popen_read(DevelopmentTools.locate("xcrun"), "--show-sdk-platform-path").chomp, "Developer", "SDKs") unless File.directory? sdk_prefix
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| 
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|           # Bail out if there is no SDK prefix at all
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|           if !File.directory? sdk_prefix
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|             {}
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|           else
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|             paths = {}
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| 
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|             Dir[File.join(sdk_prefix, "MacOSX*.sdk")].each do |sdk_path|
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|               version = sdk_path[/MacOSX(\d+\.\d+)u?\.sdk$/, 1]
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|               paths[version] = sdk_path unless version.nil?
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|             end
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| 
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|             paths
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|           end
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|         end
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|       end
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|     end
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|   end
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| end
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