Class: PerfMonger::Command::FingerprintCommand

Inherits:
BaseCommand
  • Object
show all
Defined in:
lib/perfmonger/command/fingerprint.rb

Instance Method Summary collapse

Methods inherited from BaseCommand

register_alias, register_command

Constructor Details

#initialize ⇒ FingerprintCommand

Returns a new instance of FingerprintCommand.



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# File 'lib/perfmonger/command/fingerprint.rb', line 14

def initialize
  @parser = OptionParser.new
  @parser.banner = "Usage: perfmonger fingerprint [options] OUTPUT_TARBALL\n\nOptions:\n"

  hostname = `hostname`.strip
  @output_tarball = "./fingerprint.#{hostname}.tar.gz"
end

Instance Method Details

#parse_args(argv) ⇒ Object 



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# File 'lib/perfmonger/command/fingerprint.rb', line 26

def parse_args(argv)
  @parser.parse!(argv)

  if argv.size == 0
    puts("ERROR: output directory is required.")
    puts(@parser.help)
    exit(false)
  end

  @output_tarball = argv.shift

  if ! @output_tarball =~ /\.(tar\.gz|tgz)$/
    @output_tarball += ".tar.gz"
  end
end

#run(argv) ⇒ Object 



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# File 'lib/perfmonger/command/fingerprint.rb', line 42

def run(argv)
  parse_args(argv)

  ENV['LANG'] = 'C'

  $stderr.puts("System information is gathered into #{@output_tarball}")

  Dir.mktmpdir do |tmpdir|
    output_basename = File.basename(@output_tarball.gsub(/\.(tar\.gz|tgz)$/, ''))

    @output_dir = File.join(tmpdir, output_basename)
    FileUtils.mkdir(@output_dir)

    ## Collect generic info.
    do_with_message("Saving /proc info") do
      save_proc_info()
    end

    do_with_message("Saving IRQ info") do
      save_irq_info()
    end

    do_with_message("Saving block device info") do
      save_device_info()
    end

    do_with_message("Saving /dev/disk info") do
      save_disk_info()
    end

    do_with_message("Saving PCI/PCIe info") do
      save_pci_info()
    end

    do_with_message("Saving kernel module info") do
      save_module_info()
    end

    do_with_message("Saving distro info") do
      save_distro_info()
    end

    do_with_message("Saving sysctl info") do
      save_sysctl_info()
    end

    do_with_message("Saving dmidecode info") do
      save_dmidecode_info()
    end


    ## Collect vendor specific info

    # LSI MegaRAID
    megacli_bin = "/opt/MegaRAID/MegaCli/MegaCli64"
    if File.executable?(megacli_bin) && Process::UID.rid == 0
      do_with_message("Saving MegaRAID settings") do
        save_megaraid_info(megacli_bin)
      end
    end

    tmptar_path = Tempfile.new("fingerprint").path

    Dir.chdir(tmpdir) do
      if ! system("tar czf '#{tmptar_path}' #{output_basename}")
        raise RuntimeError.new("Failed to execute tar(1)")
      end
    end

    FileUtils.mv(tmptar_path, @output_tarball)
  end
end