| 1 | #! /bin/bash |
| 2 | |
| 3 | set -e |
| 4 | |
| 5 | consume() { |
| 6 | pipe="$1" |
| 7 | debug="$2" |
| 8 | bin="$3" |
| 9 | prefixes_of_net_interfaces_to_show="$4" |
| 10 | tail -f "$pipe" \ |
| 11 | | stdbuf -o L "$bin"/khatus_controller \ |
| 12 | -v opt_debug="$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 | run_producer() { |
| 18 | pipe="$1" |
| 19 | bin="$2" |
| 20 | cmd="$3" |
| 21 | msg_head="$4" |
| 22 | "$bin"/$cmd \ |
| 23 | 2> >( |
| 24 | while read line |
| 25 | do |
| 26 | echo "ERROR ${msg_head} $line" > "$pipe" |
| 27 | done \ |
| 28 | ) \ |
| 29 | | while read line |
| 30 | do |
| 31 | echo "OK ${msg_head} $line" > "$pipe" |
| 32 | done |
| 33 | } |
| 34 | |
| 35 | fork_watcher() { |
| 36 | run_producer "$@" & |
| 37 | } |
| 38 | |
| 39 | fork_poller() { |
| 40 | interval="$1" |
| 41 | shift |
| 42 | while : |
| 43 | do |
| 44 | run_producer "$@" |
| 45 | sleep "$interval" |
| 46 | done & |
| 47 | } |
| 48 | |
| 49 | main() { |
| 50 | declare -A opts=( |
| 51 | ["--debug"]=0 |
| 52 | ["--dir_bin"]="$HOME/bin" |
| 53 | ["--file_pipe"]=$(mktemp) |
| 54 | ["--weather_station_id"]='KJFK' |
| 55 | ["--screen_brightness_device_name"]='acpi_video0' |
| 56 | ["--prefixes_of_net_interfaces_to_show"]='w' # comma-separated |
| 57 | ["--wifi_interface"]='' |
| 58 | ["--disk_space_device"]='/' |
| 59 | ["--disk_io_device"]='sda' |
| 60 | ["--thermal_zone"]=0 |
| 61 | ["--fan_path"]='/proc/acpi/ibm/fan' |
| 62 | ["--interval_inp_datetime"]=1 |
| 63 | ["--interval_inp_brightness"]=1 |
| 64 | ["--interval_inp_weather"]=$(( 30 * 60)) # 30 minutes |
| 65 | ["--interval_inp_mpd_state"]=1 |
| 66 | ["--interval_inp_mpd_song"]=1 |
| 67 | ["--interval_inp_volume"]=1 |
| 68 | ["--interval_inp_bluetooth"]=5 |
| 69 | ["--interval_inp_net_wifi"]=5 |
| 70 | ["--interval_inp_net_io"]=1 |
| 71 | ["--interval_inp_disk_space"]=5 |
| 72 | ["--interval_inp_disk_io"]=1 |
| 73 | ["--interval_inp_loadavg"]=1 |
| 74 | ["--interval_inp_temp"]=1 |
| 75 | ["--interval_inp_fan"]=1 |
| 76 | ["--interval_inp_mem"]=1 |
| 77 | ) |
| 78 | while : |
| 79 | do |
| 80 | key="$1" |
| 81 | val="$2" |
| 82 | case "$key" in |
| 83 | '') |
| 84 | break |
| 85 | ;; |
| 86 | * ) |
| 87 | if [ -v opts["$key"] ] |
| 88 | then |
| 89 | if [ "$key" == "--debug" ] |
| 90 | then |
| 91 | opts["$key"]=1 |
| 92 | shift |
| 93 | elif [ "$val" != "" ] |
| 94 | then |
| 95 | opts["$key"]="$val" |
| 96 | shift |
| 97 | shift |
| 98 | else |
| 99 | echo "Option $key requires an argument" >&2 |
| 100 | exit 1 |
| 101 | fi |
| 102 | else |
| 103 | echo "Unknown option: $key" >&2 |
| 104 | exit 1 |
| 105 | fi |
| 106 | esac |
| 107 | done |
| 108 | |
| 109 | if [ "${opts['--wifi_interface']}" = '' ] |
| 110 | then |
| 111 | echo 'Please provide the required parameter: --wifi_interface' >&2 |
| 112 | exit 1 |
| 113 | fi |
| 114 | |
| 115 | ( |
| 116 | echo '==============================================' |
| 117 | echo "Khatus starting with the following parameters:" |
| 118 | echo '==============================================' |
| 119 | for param in ${!opts[@]} |
| 120 | do |
| 121 | echo "$param := ${opts[$param]}" |
| 122 | done \ |
| 123 | | column -ts: \ |
| 124 | | sort |
| 125 | echo '----------------------------------------------' |
| 126 | ) >&2 |
| 127 | |
| 128 | screen_brightness_device_path='/sys/class/backlight' |
| 129 | screen_brightness_device_path+="/${opts['--screen_brightness_device_name']}" |
| 130 | |
| 131 | # Just shorthand |
| 132 | pipe="${opts['--file_pipe']}" |
| 133 | bin="${opts['--dir_bin']}" |
| 134 | |
| 135 | rm -f "$pipe" |
| 136 | mkfifo "$pipe" |
| 137 | |
| 138 | cmd_sens_screen_brightness='khatus_sensor_screen_brightness' |
| 139 | cmd_sens_screen_brightness+=" $screen_brightness_device_path" |
| 140 | |
| 141 | cmd_sens_weather="khatus_sensor_weather $bin ${opts['--weather_station_id']}" |
| 142 | cmd_sens_disk_space="khatus_sensor_disk_space ${opts['--disk_space_device']}" |
| 143 | cmd_sens_disk_io="khatus_sensor_disk_io ${opts['--disk_io_device']}" |
| 144 | cmd_sens_temperature="khatus_sensor_temperature ${opts['--thermal_zone']}" |
| 145 | cmd_sens_fan="khatus_sensor_fan ${opts['--fan_path']}" |
| 146 | cmd_sens_bluetooth="khatus_sensor_bluetooth_power $bin" |
| 147 | cmd_sens_mpd_state="khatus_sensor_mpd_state $bin" |
| 148 | cmd_sens_net_addr_io="khatus_sensor_net_addr_io $bin" |
| 149 | cmd_sens_volume="khatus_sensor_volume $bin" |
| 150 | cmd_sens_wifi="khatus_sensor_net_wifi_status $bin ${opts['--wifi_interface']}" |
| 151 | |
| 152 | fork_watcher "$pipe" "$bin" "khatus_sensor_energy $bin" 'in:ENERGY' |
| 153 | fork_poller "${opts['--interval_inp_datetime']}" "$pipe" "$bin" khatus_sensor_datetime 'in:DATE_TIME' |
| 154 | fork_poller "${opts['--interval_inp_brightness']}" "$pipe" "$bin" "$cmd_sens_screen_brightness" 'in:SCREEN_BRIGHTNESS' |
| 155 | fork_poller "${opts['--interval_inp_weather']}" "$pipe" "$bin" "$cmd_sens_weather" 'in:WEATHER' |
| 156 | fork_poller "${opts['--interval_inp_mpd_state']}" "$pipe" "$bin" "$cmd_sens_mpd_state" 'in:MPD_STATE' |
| 157 | fork_poller "${opts['--interval_inp_mpd_song']}" "$pipe" "$bin" khatus_sensor_mpd_song 'in:MPD_SONG' |
| 158 | fork_poller "${opts['--interval_inp_volume']}" "$pipe" "$bin" "$cmd_sens_volume" 'in:VOLUME' |
| 159 | fork_poller "${opts['--interval_inp_bluetooth']}" "$pipe" "$bin" "$cmd_sens_bluetooth" 'in:BLUETOOTH_POWER' |
| 160 | fork_poller "${opts['--interval_inp_net_wifi']}" "$pipe" "$bin" "$cmd_sens_wifi" 'in:NET_WIFI_STATUS' |
| 161 | fork_poller "${opts['--interval_inp_net_io']}" "$pipe" "$bin" "$cmd_sens_net_addr_io" 'in:NET_ADDR_IO' |
| 162 | fork_poller "${opts['--interval_inp_disk_space']}" "$pipe" "$bin" "$cmd_sens_disk_space" 'in:DISK_SPACE' |
| 163 | fork_poller "${opts['--interval_inp_disk_io']}" "$pipe" "$bin" "$cmd_sens_disk_io" 'in:DISK_IO' |
| 164 | fork_poller "${opts['--interval_inp_loadavg']}" "$pipe" "$bin" khatus_sensor_loadavg 'in:LOAD_AVG' |
| 165 | fork_poller "${opts['--interval_inp_temp']}" "$pipe" "$bin" "$cmd_sens_temperature" 'in:TEMPERATURE' |
| 166 | fork_poller "${opts['--interval_inp_fan']}" "$pipe" "$bin" "$cmd_sens_fan" 'in:FAN' |
| 167 | fork_poller "${opts['--interval_inp_mem']}" "$pipe" "$bin" khatus_sensor_memory 'in:MEMORY' |
| 168 | |
| 169 | consume \ |
| 170 | "$pipe" \ |
| 171 | "${opts['--debug']}" \ |
| 172 | "$bin" \ |
| 173 | "${opts['--prefixes_of_net_interfaces_to_show']}" |
| 174 | } |
| 175 | |
| 176 | main $@ |