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Chef::DSL::RebootPending

Public Instance Methods

reboot_pending?() click to toggle source

Returns true if the system needs a reboot or is expected to reboot Raises UnsupportedPlatform if this functionality isn’t provided yet

# File lib/chef/dsl/reboot_pending.rb, line 31
def reboot_pending?

  if platform?("windows")
    # PendingFileRenameOperations contains pairs (REG_MULTI_SZ) of filenames that cannot be updated
    # due to a file being in use (usually a temporary file and a system file)
    # \??\c:\temp\test.sys!\??\c:\winnt\system32\test.sys
    # http://technet.microsoft.com/en-us/library/cc960241.aspx
    registry_value_exists?('HKLM\SYSTEM\CurrentControlSet\Control\Session Manager', { :name => 'PendingFileRenameOperations' }) ||

    # RebootRequired key contains Update IDs with a value of 1 if they require a reboot.
    # The existence of RebootRequired alone is sufficient on my Windows 8.1 workstation in Windows Update
    registry_key_exists?('HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired') ||

    # Vista + Server 2008 and newer may have reboots pending from CBS
    registry_key_exists?('HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\RebootRequired') ||

    # The mere existance of the UpdateExeVolatile key should indicate a pending restart for certain updates
    # http://support.microsoft.com/kb/832475
    (registry_key_exists?('HKLM\SOFTWARE\Microsoft\Updates\UpdateExeVolatile') &&
          !registry_get_values('HKLM\SOFTWARE\Microsoft\Updates\UpdateExeVolatile').select { |v| v[:name] == "Flags" }[0].nil? &&
          [1,2,3].include?(registry_get_values('HKLM\SOFTWARE\Microsoft\Updates\UpdateExeVolatile').select { |v| v[:name] == "Flags" }[0][:data]))
  elsif platform?("ubuntu")
    # This should work for Debian as well if update-notifier-common happens to be installed. We need an API for that.
    File.exists?('/var/run/reboot-required')
  else
    raise Chef::Exceptions::UnsupportedPlatform.new(node[:platform])
  end
end

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