Class: AptControl::CLI::Watch

Inherits:
Object
  • Object
show all
Includes:
Common
Defined in:
lib/apt_control/cli/watch.rb

Instance Method Summary collapse

Methods included from Common

#apt_site, #build_archive, #control_file, #each_package_state, #logger, #notifier, #notify, #validate_config!

Instance Method Details

#daemonize! ⇒ Object 



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# File 'lib/apt_control/cli/watch.rb', line 32

def daemonize!
  pidfile = options[:pidfile]

  if pidfile && File.exists?(pidfile)
    $stderr.puts("pidfile exists, not starting")
    exit 1
  end

  if uid = options[:setuid]
    logger.info("setting uid to #{uid}")
    begin
      Process::Sys.setuid(uid)
    rescue Errno::EPERM => e
      raise Climate::ExitException, "Could not setuid with #{uid}"
    end
  end

  pid = fork
  exit 0 unless pid.nil?

  File.open(pidfile, 'w') {|f| f.write(Process.pid) } if pidfile

  at_exit { File.delete(pidfile) if File.exists?(pidfile) } if pidfile
end

#run ⇒ Object 



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# File 'lib/apt_control/cli/watch.rb', line 18

def run
  validate_config!

  # hit these before we daemonize so we don't just background and die
  apt_site
  control_file
  build_archive

  daemonize! if options[:daemonize]

  start_watching
end

#start_watching ⇒ Object 



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# File 'lib/apt_control/cli/watch.rb', line 57

def start_watching
  # update the all the rules if the control file changes
  Thread.new { control_file.watch { notify "Control file reloaded" } }

  notify("Watching for new packages in #{build_archive.dir}")
  build_archive.watch do |package, new_version|
    notify("new package: #{package.name} at #{new_version}")

    updated = control_file.distributions.map do |dist|
      rule = dist[package.name] or next
      included = apt_site.included_version(dist.name, package.name)

      if rule.upgradeable?(included, [new_version])
        if options[:noop]
          notify("package #{package.name} can be upgraded to #{new_version} on #{dist.name} (noop)")
        else
          # FIXME error handling here, please
          begin
            apt_site.include!(dist.name, build_archive.changes_fname(rule.package_name, new_version))
            notify("included package #{package.name}-#{new_version} in #{dist.name}")
          rescue => e
            notify("Failed to include package #{package.name}-#{new_version}, check log for more details")
            logger.error("failed to include package #{package.name}")
            logger.error(e)
          end
        end
        dist.name
      else
        nil
      end
    end.compact

    if updated.size == 0
      notify("package #{package.name} could not be updated on any distributions")
    end
  end
end