bin/khatus

   1 #! /bin/bash
   2
   3 set -e
   4
   5 consume() {
   6     pipe="$1"
   7     debug="$2"
   8     dir_bin="$3"
   9     prefixes_of_net_interfaces_to_show="$4"
  10     tail -f "$pipe" \
  11     | stdbuf -o L "$dir_bin"/khatus_controller \
  12         -v opt_debug="$debug" \
  13         -v opt_mpd_song_max_chars=10 \
  14         -v opt_prefixes_of_net_interfaces_to_show="$prefixes_of_net_interfaces_to_show"
  15 }
  16
  17 spawn() {
  18     pipe="$1"
  19     dir_bin="$2"
  20     cmd="$3"
  21     msg_head="$4"
  22     interval="$5"
  23     while true; do
  24         "$dir_bin"/$cmd | while read line; do
  25             echo "${msg_head} $line" > "$pipe"
  26         done
  27         sleep "$interval"
  28     done &
  29 }
  30
  31 main() {
  32     # Defaults
  33     debug=0
  34     dir_bin="$HOME/bin"
  35     dir_data=$(mktemp -d)
  36     weather_station_id='KJFK'
  37     screen_brightness_device_name='acpi_video0'
  38     prefixes_of_net_interfaces_to_show='w'  # comma-separated
  39     disk_space_device='/'
  40     disk_io_device='sda'
  41     thermal_zone=0
  42     fan_path='/proc/acpi/ibm/fan'
  43
  44     interval_inp_datetime=1
  45     interval_inp_brightness=1
  46     interval_inp_weather=$(( 30 * 60))  # 30 minutes
  47     interval_inp_mpd_state=1
  48     interval_inp_mpd_song=1
  49     interval_inp_volume=1
  50     interval_inp_bluetooth=5
  51     interval_inp_net_wifi=5
  52     interval_inp_net_io=1
  53     interval_inp_disk_space=5
  54     interval_inp_disk_io=1
  55     interval_inp_loadavg=1
  56     interval_inp_temp=1
  57     interval_inp_fan=1
  58     interval_inp_mem=1
  59     interval_inp_energy=1
  60
  61     # User-overrides
  62     long_options=''
  63     long_options+='debug'
  64     long_options+=',bin_dir:'
  65     long_options+=',data_dir:'
  66     long_options+=',weather_station:'
  67     long_options+=',screen_device:'
  68     long_options+=',prefixes_of_net_interfaces_to_show:'
  69     long_options+=',disk_space_device:'
  70     long_options+=',disk_io_device:'
  71     long_options+=',thermal_zone:'
  72     long_options+=',fan_path:'
  73     long_options+=',interval_inp_datetime:'
  74     long_options+=',interval_inp_brightness:'
  75     long_options+=',interval_inp_weather:'
  76     long_options+=',interval_inp_mpd_state:'
  77     long_options+=',interval_inp_mpd_song:'
  78     long_options+=',interval_inp_volume:'
  79     long_options+=',interval_inp_bluetooth:'
  80     long_options+=',interval_inp_net_wifi:'
  81     long_options+=',interval_inp_net_io:'
  82     long_options+=',interval_inp_disk_space:'
  83     long_options+=',interval_inp_disk_io:'
  84     long_options+=',interval_inp_loadavg:'
  85     long_options+=',interval_inp_temp:'
  86     long_options+=',interval_inp_fan:'
  87     long_options+=',interval_inp_mem:'
  88     long_options+=',interval_inp_energy:'
  89     OPTS=$(
  90         getopt \
  91             -o 'd' \
  92             -l $long_options \
  93             -- "$@"
  94     )
  95     eval set -- "$OPTS"
  96     while true
  97     do
  98         case "$1" in
  99             -d|--debug)
 100                 debug=1
 101                 shift
 102                 ;;
 103             --bin_dir)
 104                 dir_bin="$2"
 105                 shift 2
 106                 ;;
 107             --data_dir)
 108                 dir_data="$2"
 109                 shift 2
 110                 ;;
 111             --weather_station)
 112                 weather_station_id="$2"
 113                 shift 2
 114                 ;;
 115             --screen_device)
 116                 screen_brightness_device_name="$2"
 117                 shift 2
 118                 ;;
 119             --prefixes_of_net_interfaces_to_show)
 120                 prefixes_of_net_interfaces_to_show="$2"
 121                 shift 2
 122                 ;;
 123             --disk_space_device)
 124                 disk_space_device="$2"
 125                 shift 2
 126                 ;;
 127             --disk_io_device)
 128                 disk_io_device="$2"
 129                 shift 2
 130                 ;;
 131             --thermal_zone)
 132                 thermal_zone="$2"
 133                 shift 2
 134                 ;;
 135             --fan_path)
 136                 fan_path="$2"
 137                 shift 2
 138                 ;;
 139             --interval_inp_datetime)
 140                 interval_inp_datetime="$2"
 141                 shift 2
 142                 ;;
 143             --interval_inp_brightness)
 144                 interval_inp_brightness="$2"
 145                 shift 2
 146                 ;;
 147             --interval_inp_weather)
 148                 interval_inp_weather="$2"
 149                 shift 2
 150                 ;;
 151             --interval_inp_mpd_state)
 152                 interval_inp_mpd_state="$2"
 153                 shift 2
 154                 ;;
 155             --interval_inp_mpd_song)
 156                 interval_inp_mpd_song="$2"
 157                 shift 2
 158                 ;;
 159             --interval_inp_volume)
 160                 interval_inp_volume="$2"
 161                 shift 2
 162                 ;;
 163             --interval_inp_bluetooth)
 164                 interval_inp_bluetooth="$2"
 165                 shift 2
 166                 ;;
 167             --interval_inp_net_wifi)
 168                 interval_inp_net_wifi="$2"
 169                 shift 2
 170                 ;;
 171             --interval_inp_net_io)
 172                 interval_inp_net_io="$2"
 173                 shift 2
 174                 ;;
 175             --interval_inp_disk_space)
 176                 interval_inp_disk_space="$2"
 177                 shift 2
 178                 ;;
 179             --interval_inp_disk_io)
 180                 interval_inp_disk_io="$2"
 181                 shift 2
 182                 ;;
 183             --interval_inp_loadavg)
 184                 interval_inp_loadavg="$2"
 185                 shift 2
 186                 ;;
 187             --interval_inp_temp)
 188                 interval_inp_temp="$2"
 189                 shift 2
 190                 ;;
 191             --interval_inp_fan)
 192                 interval_inp_fan="$2"
 193                 shift 2
 194                 ;;
 195             --interval_inp_mem)
 196                 interval_inp_mem="$2"
 197                 shift 2
 198                 ;;
 199             --interval_inp_energy)
 200                 interval_inp_energy="$2"
 201                 shift 2
 202                 ;;
 203             --)
 204                 shift
 205                 break
 206                 ;;
 207         esac
 208     done
 209
 210     pipe="$dir_data/khatus_data_pipe"
 211     screen_brightness_device_path='/sys/class/backlight'
 212     screen_brightness_device_path+="/$screen_brightness_device_name"
 213
 214     ( echo "Khatus starting with the following parameters:"
 215       ( echo "    debug|= $debug"
 216         echo "    dir_bin|= $dir_bin"
 217         echo "    dir_data|= $dir_data"
 218         echo "    pipe|= $pipe"
 219         echo "    screen_brightness_device_name|= $screen_brightness_device_name"
 220         echo "    screen_brightness_device_path|= $screen_brightness_device_path"
 221         echo "    weather_station_id|= $weather_station_id"
 222         echo "    prefixes_of_net_interfaces_to_show|= $prefixes_of_net_interfaces_to_show"
 223         echo "    disk_space_device|= $disk_space_device"
 224         echo "    disk_io_device|= $disk_io_device"
 225         echo "    thermal_zone|= $thermal_zone"
 226         echo "    fan_path|= $fan_path"
 227       ) | column -ts\|
 228       echo ''
 229     ) >&2
 230
 231     mkdir -p "$dir_data"
 232     rm -f "$pipe"
 233     mkfifo "$pipe"
 234
 235     cmd_sens_screen_brightness='khatus_sensor_screen_brightness'
 236     cmd_sens_screen_brightness+=" $screen_brightness_device_path"
 237
 238     cmd_sens_weather="khatus_sensor_weather $weather_station_id"
 239
 240     cmd_sens_disk_space="khatus_sensor_disk_space $disk_space_device"
 241
 242     cmd_sens_disk_io="khatus_sensor_disk_io $disk_io_device"
 243
 244     cmd_sens_temperature="khatus_sensor_temperature $thermal_zone"
 245
 246     cmd_sens_fan="khatus_sensor_fan $fan_path"
 247
 248     # TODO: Redirect each worker's stderr to a dedicated log file
 249     spawn "$pipe" "$dir_bin" khatus_sensor_datetime        'in:DATE_TIME'         $interval_inp_datetime
 250     spawn "$pipe" "$dir_bin" "$cmd_sens_screen_brightness" 'in:SCREEN_BRIGHTNESS' $interval_inp_brightness
 251     spawn "$pipe" "$dir_bin" "$cmd_sens_weather"           'in:WEATHER'           $interval_inp_weather
 252     spawn "$pipe" "$dir_bin" khatus_sensor_mpd_state       'in:MPD_STATE'         $interval_inp_mpd_state
 253     spawn "$pipe" "$dir_bin" khatus_sensor_mpd_song        'in:MPD_SONG'          $interval_inp_mpd_song
 254     spawn "$pipe" "$dir_bin" khatus_sensor_volume          'in:VOLUME'            $interval_inp_volume
 255     spawn "$pipe" "$dir_bin" khatus_sensor_bluetooth_power 'in:BLUETOOTH_POWER'   $interval_inp_bluetooth
 256     spawn "$pipe" "$dir_bin" khatus_sensor_net_wifi_status 'in:NET_WIFI_STATUS'   $interval_inp_net_wifi
 257     spawn "$pipe" "$dir_bin" khatus_sensor_net_addr_io     'in:NET_ADDR_IO'       $interval_inp_net_io
 258     spawn "$pipe" "$dir_bin" "$cmd_sens_disk_space"        'in:DISK_SPACE'        $interval_inp_disk_space
 259     spawn "$pipe" "$dir_bin" "$cmd_sens_disk_io"           'in:DISK_IO'           $interval_inp_disk_io
 260     spawn "$pipe" "$dir_bin" khatus_sensor_loadavg         'in:LOAD_AVG'          $interval_inp_loadavg
 261     spawn "$pipe" "$dir_bin" "$cmd_sens_temperature"       'in:TEMPERATURE'       $interval_inp_temp
 262     spawn "$pipe" "$dir_bin" "$cmd_sens_fan"               'in:FAN'               $interval_inp_fan
 263     spawn "$pipe" "$dir_bin" khatus_sensor_memory          'in:MEMORY'            $interval_inp_mem
 264     spawn "$pipe" "$dir_bin" khatus_sensor_energy          'in:ENERGY'            $interval_inp_energy
 265
 266     consume \
 267       "$pipe" \
 268       "$debug" \
 269       "$dir_bin" \
 270       "$prefixes_of_net_interfaces_to_show"
 271 }
 272
 273 main $@