require 'package'

class Linuxheaders < Package
  description 'Linux headers for Chrome OS.'
  homepage 'https://kernel.org/'
  version CREW_KERNEL_VERSION
  license 'GPL-2'
  compatibility 'all'
  source_url 'https://chromium.googlesource.com/chromiumos/third_party/kernel.git'
  git_hashtag "chromeos-#{CREW_KERNEL_VERSION}"
  binary_compression 'tar.zst'

  case CREW_KERNEL_VERSION
  when '3.8'
    binary_sha256({
         i686: '362ab05c4f6903793560fffd33abf79e5194fb72d3d38ec1648a93c56ebf91e8'
    })
  when '3.10'
    binary_sha256({
      aarch64: 'c72bd617ad3b828daffb6715461e8fd9d40770c381a3acab1a9028d5efefb141',
       armv7l: 'c72bd617ad3b828daffb6715461e8fd9d40770c381a3acab1a9028d5efefb141'
    })
  when '3.14'
    binary_sha256({
      aarch64: 'ab9bcfc09e84da46955cec28c795f7aab8e92be85f5a05ca972285382ea6aac5',
       armv7l: 'ab9bcfc09e84da46955cec28c795f7aab8e92be85f5a05ca972285382ea6aac5'
    })
  when '4.14'
    binary_sha256({
      aarch64: 'b45bd05d2bfcdd2c0c18c02af9fdddd4008256cfd76a70681d4ae426cd2126f3',
       armv7l: 'b45bd05d2bfcdd2c0c18c02af9fdddd4008256cfd76a70681d4ae426cd2126f3',
       x86_64: 'faaa0bbe68f8052906537a2bc22d9ba957d2c51e39ce94ea50f1e37cae89a252'
    })
  when '4.19'
    binary_sha256({
      aarch64: 'cc9227b5b3af3abdaba4c1eb6b5df066af6c5f20629cee3a4e351b3e40521760',
       armv7l: 'cc9227b5b3af3abdaba4c1eb6b5df066af6c5f20629cee3a4e351b3e40521760',
       x86_64: 'ea112d55cb33823a473791d146d124ae5d2cce7fb72ebe0b047d5937957ee994'
    })
  when '5.4'
    binary_sha256({
      aarch64: 'b790edcfe5bcad8fc7e7b873a6ba8f9ad147b00849db2afead5f51e19f699df7',
       armv7l: 'b790edcfe5bcad8fc7e7b873a6ba8f9ad147b00849db2afead5f51e19f699df7',
       x86_64: 'e6ea539149f4333518787eb1e0fa436d0914990fd2899011c277ab418a9b78ba'
    })
  when '5.10'

    binary_sha256({
      aarch64: '23b6f70dad19663d42a1bb8707e66eb1b35c4934ef051577701397b4708e8cff',
       armv7l: '23b6f70dad19663d42a1bb8707e66eb1b35c4934ef051577701397b4708e8cff',
       x86_64: '797e7a8369f613b50b049b2352f82d5842a2c9ae766d6d5b1165b90a528ac139'
    })
  when '5.15'
    binary_sha256({
      aarch64: 'f777a2fa6f124a808f32dc3dea4d71d939bd6b1237d6eff6bd61e53a21d60707',
       armv7l: 'f777a2fa6f124a808f32dc3dea4d71d939bd6b1237d6eff6bd61e53a21d60707',
       x86_64: '5b0fa3daf6ac8f2cd1028bd326a6c64f0cac052ba225845ba314e06d12a3de76'
    })
  when '6.1'
    binary_sha256({
      aarch64: '424399cfc8e7f1372003e9766fde2006c4597a70253069a4a3c4a4254a94c7d8',
       armv7l: '424399cfc8e7f1372003e9766fde2006c4597a70253069a4a3c4a4254a94c7d8',
       x86_64: '9b3cd996703add46eaf40b8e18b0cfa8a11cf9387f106434d6bfd4e1958b85c0'
    })
  when '6.6'
    binary_sha256({
      aarch64: '57da5af2e1ce96222fcf0f574d5a3093c851754cccd2a7d06aa0d7cecd25a7f6',
       armv7l: '57da5af2e1ce96222fcf0f574d5a3093c851754cccd2a7d06aa0d7cecd25a7f6',
       x86_64: '4c2271b3415bf20c3f3de7ca2687ec06749d8586bd792b7b931ce49bf1451ce4'
    })
  when '6.12'
    binary_sha256({
      aarch64: '5c98953b23222a11d9a1a70624a95251053f24830a66fc68e7bcbdf115c1ca2f',
       armv7l: '5c98953b23222a11d9a1a70624a95251053f24830a66fc68e7bcbdf115c1ca2f',
       x86_64: '619f3c0156cca2f38cf8b999158f2619f1ed659908f0b0005b902f93ba2b6e6a'
    })
  end

  depends_on 'rsync' => :build

  no_env_options
  no_fhs

  def self.install
    # make fails if it detects gold linker.
    FileUtils.mkdir_p('crew_bin')
    @workdir = Dir.pwd
    FileUtils.ln_sf "#{CREW_PREFIX}/bin/ld.bfd", "#{@workdir}/crew_bin/ld"
    @kbuild_arch = case ARCH
                   when 'armv7l', 'aarch64'
                     'arm'
                   else
                     'x86'
                   end
    system "ARCH=#{@kbuild_arch} PATH=#{@workdir}/crew_bin:$PATH make defconfig"
    system "ARCH=#{@kbuild_arch} PATH=#{@workdir}/crew_bin:$PATH make headers_install INSTALL_HDR_PATH=#{CREW_DEST_PREFIX}"
    Dir.chdir("#{CREW_DEST_PREFIX}/include") do
      system "for file in $(find . -not -type d -name '.*'); do
                rm ${file};
              done"
    end
  end
end