Module: Getch::Helpers::Void

Included in:
FileSystem::Ext4::Encrypt::Void, FileSystem::Lvm::Encrypt::Void
Defined in:
lib/getch/helpers.rb

Overview

Helpers specific to void

Instance Method Summary collapse

Instance Method Details

#chroot(cmd) ⇒ Object

Used only when need password



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# File 'lib/getch/helpers.rb', line 138

def chroot(cmd)
  return if system('chroot', Getch::MOUNTPOINT, '/bin/bash', '-c', cmd)

  raise "[-] Error with: #{cmd}"
end

#command_output(args) ⇒ Object 



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# File 'lib/getch/helpers.rb', line 125

def command_output(args)
  print " => Exec: #{args}..."
  cmd = "chroot #{Getch::MOUNTPOINT} /bin/bash -c \"#{args}\""
  Open3.popen2e(cmd) do |_, stdout_err, wait_thr|
    puts
    stdout_err.each { |l| puts l }

    exit_status = wait_thr.value
    raise("\n[-] Fail cmd #{args} - #{stdout_err}.") unless exit_status.success?
  end
end

#line_fstab(dev, rest) ⇒ Object 



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# File 'lib/getch/helpers.rb', line 152

def line_fstab(dev, rest)
  conf = "#{Getch::MOUNTPOINT}/etc/fstab"
  device = s_uuid(dev)
  raise "No partuuid for #{dev} #{device}" unless device
  raise "Bad partuuid for #{dev} #{device}" if device.is_a?(Array)

  add_line(conf, "PARTUUID=#{device} #{rest}")
end

#s_uuid(dev) ⇒ Object 



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# File 'lib/getch/helpers.rb', line 144

def s_uuid(dev)
  device = dev.delete_prefix('/dev/')
  Dir.glob('/dev/disk/by-partuuid/*').each do |f|
    link = File.readlink(f)
    return f.delete_prefix('/dev/disk/by-partuuid/') if link.match(/#{device}$/)
  end
end