Simplify android logcat.

logcat

#!/usr/bin/env ruby

# 
# adb logcat をもっと見やすく.
# 

require 'optparse'

#
# global option.
#

options = {
  :loglevels  => ['D'],
  :tags       => [],

  :command    => 'adb logcat -v tag',

  :format     => '[$tag]\n  $msg',
  :format_tag => "$tag",
  :format_msg => "$msg",
  :format_level => "$level",

  :coloring   => true,
  :level_colors => {
    'D' => 'blue',
    'I' => 'cyan',
    'W' => 'yellow',
    'E' => 'red',
  },

  :system_tags  => [
    'AbsListView',
    'ActivityManager',
    'AlarmManagerService',
    'AndroidRuntime',
    'ApplicationPolicy',
    'AudioHardwareALSA',
    'AudioStreamOutALSA',
    'AwesomePlayer',
    'AlarmItem',
    'AlarmWidget',
    'AlarmReceiver',
    'accuweather',
    'alsa_ucm',
    'ALSAModule',
    'ANDROID_DRM_TEST',
    'AlarmProvider',
    'AudioPolicyManagerBase',
    'AudioService',
    'AccountTypeManager',
    'AllShareClient',
    'AllShareContext',
    'AllShareSource',
    'AvrcpProxy',
    'AvrcpStubService',
    "ApplicationUsage",
    "AudioFlinger",
    "AudioPlayer",
    "AlarmManager",
    "AudioTrack",
    "AvrcpService",
    'ACRA',

    'BatteryService',
    'BackupManagerService',
    'BluetoothPolicyService',
    'BluetoothUtils',
    "BtOppRfcommListener",

    'CircleLockScreen',
    'CircleMissedEventWidget',
    'CircleShortcutWidget',
    'CircleUnlockRipple',
    'CircleUnlockRippleRenderer',
    'ClockWidget',
    'ConnectivityService',
    'comsamsunglog',
    'comsamsungapp',
    'CLIPBOARD',
    'CapabilityManagerService',
    'ContactProvider',
    "ClipboardServiceEx",
    "CpuGovernorService",
    "chromium",

    "DBG_WSS_DM",
    "DownloadManager",
    "DrmEventService",
    'DEFERED_APP_VISIBILITY',
    'DrmPVPlugIn',
    'dalvikvm',
    'DivXPlugin',
    "DigestUtils",
    'DEEPAK',

    "EventLogService",
    'EmojiDrawable',
    'EMOJI_SL',

    'FastDormancy',
    'FirewallPolicy',
    'Finsky',

    'GpsLocationProvider',
    "GlobalActions",
    'Gmail',
    'GLWebViewState',

    'InputReader',
    "InputDispatcher",
    "installd",
    "InputManagerService",

    'jniAvrcpService',

    'KeyguardViewManager',
    'KeyguardUpdateMonitor',
    'KeyguardViewMediator',

    'LibQmg_native',
    'LockPatternKeyguardView',
    'LocationManagerService',
    'lights',
    'libEGL',

    'MtpService',
    'MTPJNIInterface',
    'memalloc',
    'MSC_Accu_Daemon',
    'MobileDataStateTracker',
    'MonitorSver',
    "MotionRecognitionManager",

    'NetworkConnectivityReceiver',
    'NetworkManagementService',
    "NetworkManagementSocketTagger",

    'OMXCodec',
    'OpenGLRenderer',

    'PhoneStatusBar',
    'PhoneNumberUtils',
    'PointerInterceptView',
    'PopupuiReceiver',
    'PVPlayReadyReceiver',
    'PowerManagerService',
    'PackageManager',
    "PCWCLIENTTRACE_LOG",
    "PCWCLIENTTRACE_SPPReceiver",
    "PictController",
    "ProcessStats",
    "paletteui",

    'QMI_FW',
    'jdwp',

    "ResourceType",
    'RestrictionPolicy',
    "rmt_storage",

    'Sensors',
    'SurfaceFlinger',
    'SystemClock',
    'SensorManager',
    'StatusChecker',
    'SignalStrength',
    'SMD',
    "syncContacts",
    "SamplingRateChangeProcessor",
    "SqliteDatabaseCpp",
    "SimpleChannelHandler",
    "SurfaceView",

    'ThermistorObserver',
    'Tethering',
    
    'UsbDeviceManager',
    'UsbDetectingManager',
    'UsbDeviceManager',

    'VolumePanel',
    'VoIPInterfaceManager',
    "Vibrator",
    "ViewRootImpl",
    'VoldCmdListener',
    'Volley',
    'vclib',

    'WallpaperWidget',
    'WindowManager',
    'WifiService',
    'WifiP2pStateTracker',
    'WML_SISO',
    'webviewglue',
    'webclipboard',
    'webkit',
  ],
}

color_pallet = {
  "black"   => 30,
  "red"     => 31,
  "yellow"  => 33,
  "blue"    => 34,
  "magenta" => 35,
  "cyan"    => 36,
  "white"   => 37,
}

#
# option parse
#

opt = OptionParser.new

opt.on('-l LEVELS',
       "log level which is separated by comma. it should be V or D or I or W or E") do |v|
  options[:loglevels] = v.upcase.split(',')
end

opt.on('-t TAGS', 'filtering tag') do |v|
  options[:tags] = v.split(',')
end

opt.on('-f format', 'set specified format') do |v|
  options[:format] = v
end

opt.on('--[no-]color', 'set coloring') do |v|
  options[:coloring] = v
end

opt.parse!(ARGV)

#
# main
#

IO.popen(options[:command], 'r+') do |io|
  io.each do |line|
    line.chomp!
    line.encode!("UTF-8", "UTF-8",
               invalid: :replace,
               undef: :replace,
               replace: '.')
    if %r{^(V|D|I|W|E)/(\w+)\s*:\s*(.+)} =~ line
      level = $1
      tag   = $2
      msg   = $3

      next if !options[:loglevels].include?(level)
      next if !options[:tags].empty? && !options[:tags].include?(tag)
      next if options[:system_tags].include?(tag)

      # coloring
      if options[:coloring] && options[:level_colors][level] != nil then
        color_format = "\033[%dm%s\033[0m"
        color = color_pallet[options[:level_colors][level]]

        level = color_format % [color, level]
        tag   = color_format % [color, tag]
        msg   = color_format % [color, msg]
      end

      # formating

      outstr = options[:format]
        .gsub(options[:format_level], level)
        .gsub(options[:format_tag], tag)
        .gsub(options[:format_msg], msg)
        .gsub('\n', "\n")
        .gsub('\t', "\t")
      puts outstr
    end
  end
end

__END__

TODO

• write message tracking.
• syntax test
• add time format.
• view html viewer mode.