Module: KextCache

Defined in:
lib/iesd/utility/kextcache.rb

Constant Summary collapse

KEXTCACHE_DEFAULT_OPTIONS = 
%w{ -v 0 -no-authentication }
EXTENSIONS = 
%w{ System Library Extensions }
EXTRA_EXTENSIONS = 
%w{ Library Extensions }
KERNELCACHE = 
%w{ System Library Caches com.apple.kext.caches Startup kernelcache }
MKEXT = 
%w{ System Library Caches com.apple.kext.caches Startup Extensions.mkext }
MKEXT_PPC = 
%w{ System Library Extensions.mkext }

Class Method Summary collapse

Class Method Details

.update_volume(volume_root) ⇒ Object 



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# File 'lib/iesd/utility/kextcache.rb', line 12

def self.update_volume volume_root
  oh1 "Updating Kextcache"
  if File.exist? (mach_kernel = File.join(volume_root, "mach_kernel"))
    extensions_path = [File.join(volume_root, *EXTENSIONS)]
    extensions_path.push(File.join(volume_root, *EXTRA_EXTENSIONS)) if File.exist? File.join(volume_root, *EXTRA_EXTENSIONS)
    case
    when (File.exist? (url = File.join(volume_root, *KERNELCACHE)))
      system("/usr/bin/env", "kextcache", *KEXTCACHE_DEFAULT_OPTIONS, "-prelinked-kernel", url, "-kernel", mach_kernel, "-volume-root", volume_root, "--", *extensions_path)
    when (File.exist? (url = File.join(volume_root, *MKEXT)))
      system("/usr/bin/env", "kextcache", *KEXTCACHE_DEFAULT_OPTIONS, *%w{ -a i386 -a x86_64 }, "-mkext", url, "-kernel", mach_kernel, "-volume-root", volume_root, "--", *extensions_path)
      if File.exist? (mkext_ppc = File.join(volume_root, *MKEXT_PPC))
        system("/usr/bin/env", "ditto", url, mkext_ppc)
      end
    when (File.exist? (url = File.join(volume_root, *MKEXT_PPC)))
      system("/usr/bin/env", "ditto", *KEXTCACHE_DEFAULT_OPTIONS, *%w{ -a ppc -a i386 }, "-mkext", url, "-kernel", mach_kernel, "-volume-root", volume_root, "--", *extensions_path)
    else
      puts "kextcache aborted: unknown kernel cache type"
      return
    end
    puts "Updated: #{url}"
  else
    opoo "kextcache aborted: mach_kernel not found"
  end
end