Class: IESD::Packages::BaseSystemBinaries

Inherits:
PKGUtil::PKG show all
Defined in:
lib/iesd/InstallESD/Packages/BaseSystemBinaries.pkg.rb

Overview

BaseSystemBinaries.pkg

Instance Attribute Summary

Attributes inherited from PKGUtil::PKG

#url

Instance Method Summary collapse

Methods inherited from PKGUtil::PKG

#edit, #initialize, #show, #update

Constructor Details

This class inherits a constructor from PKGUtil::PKG

Instance Method Details

#extract_mach_kernel(output) ⇒ Object

Extract the mach_kernel.

output - The String path to the output file.



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# File 'lib/iesd/InstallESD/Packages/BaseSystemBinaries.pkg.rb', line 12

def extract_mach_kernel output
  show { |pkg|
    payload = "#{pkg}/Payload"
    cpio = "#{payload}.cpio"
    ohai "Unarchiving #{payload}"
    case `/usr/bin/env file --brief --mime-type #{payload.shellescape}`.chomp
    when "application/x-bzip2"
      system("/usr/bin/env", "mv", payload, "#{cpio}.bz2")
      system("/usr/bin/env", "bunzip2", "#{cpio}.bz2")
    when "application/x-gzip"
      system("/usr/bin/env", "mv", payload, "#{cpio}.gz")
      system("/usr/bin/env", "gunzip", "#{cpio}.gz")
    end
    puts "Unarchived: #{cpio}"
    ohai "Extracting /mach_kernel"
    system("/usr/bin/env cpio -p -d -I #{cpio.shellescape} -- #{payload.shellescape} <<</mach_kernel >/dev/null 2>&1")
    system("/usr/bin/env", "mv", "#{payload}/mach_kernel", output)
    puts "Extracted: #{output}"
  }
end