+++ /dev/null
-#! /usr/bin/awk -f
-
-/^OK/ { debug("OK line", $0) }
-
-/^ERROR in:MPD.*NON_ZERO_EXIT_CODE/ {
- for (mpd_key in db) {
- if (mpd_key ~ "^mpd_") {
- delete db[mpd_key]
- }
- }
- next
-}
-
-/^ERROR/ {
- debug("ERROR line", $0)
- shift()
- msg_head = $1
- shift()
- msg_body = $0
- alert_trigger_hi(msg_head, "KhatusSensorError", msg_body)
-}
-
-/^OK in:ENERGY battery/\
-{
- debug("ENERGY battery", $0)
- sub("%$", "", $5)
- db["energy_state_prev"] = db["energy_state_curr"]
- db["energy_state_curr"] = $4
- db["energy_percentage"] = ensure_numeric($5)
- alert_check_energy_battery()
-}
-
-/^OK in:ENERGY line_power/\
-{
- debug("ENERGY line_power", $0)
- db["energy_line_power_prev"] = db["energy_line_power_curr"]
- db["energy_line_power_curr"] = $4
- alert_check_energy_line_power()
-}
-
-/^OK in:MEMORY/\
-{
- shift()
- shift()
- db["memory_total"] = $1
- db["memory_used"] = $2
-}
-
-/^OK in:FAN +status:/\
-{
- shift()
- shift()
- db["fan_status"] = $2
-}
-
-/^OK in:FAN +speed:/\
-{
- shift()
- shift()
- db["fan_speed"] = $2
-}
-
-/^OK in:FAN +level:/\
-{
- shift()
- shift()
- db["fan_level"] = $2
-}
-
-/^OK in:TEMPERATURE/\
-{
- shift()
- shift()
- db["temperature"] = $1
-}
-
-/^OK in:LOAD_AVG/\
-{
- shift()
- shift()
- set_load_avg()
-}
-
-/^OK in:DISK_IO/\
-{
- shift()
- shift()
- set_disk_io()
-}
-
-/^OK in:DISK_SPACE/\
-{
- shift()
- shift()
- db["disk_space_used"] = $0
-}
-
-/^OK in:NET_ADDR_IO/\
-{
- shift()
- shift()
- set_net_addr_io()
-}
-
-/^OK in:NET_WIFI_STATUS/\
-{
- shift()
- shift()
- set_net_wifi_status()
-}
-
-/^OK in:BLUETOOTH_POWER/\
-{
- shift()
- shift()
- db["bluetooth_power"] = $0
-}
-
-/^OK in:SCREEN_BRIGHTNESS/\
-{
- shift()
- shift()
- set_screen_brightness()
-}
-
-/^OK in:VOLUME/\
-{
- shift()
- set_volume()
-}
-
-/^OK in:MPD_SONG OK +MPD/ { delete db_mpd_song; next }
-/^OK in:MPD_SONG OK$/ { set_mpd_playing() ; next }
-/^OK in:MPD_SONG / { set_mpd_song() ; next }
-
-/^OK in:MPD_STATE /\
-{
- shift()
- shift()
- db["mpd_status_state"] = $1
- db["mpd_status_time"] = $2
- db["mpd_status_percent"] = $3
-}
-
-/^OK in:WEATHER temperature/\
-{
- shift()
- shift()
- shift()
- db["weather_temperature"] = $0
-}
-
-/^OK in:WEATHER phenomenon/\
-{
- shift()
- shift()
- shift()
- alert_trigger_low("weather_phenomenon", "WeatherPhenomenon", $0)
-}
-
-/^OK in:DATE_TIME/\
-{
- shift()
- shift()
- db["datetime"] = $0
- output_msg_status_bar(make_status_bar())
-}
-
-function set_volume( mute, left, right) {
- # 0 RUNNING no 75% 75%
- #msg_head = $1
- #sink = $2
- #state = $3
- mute = $4
- left = $5
- right = $6
-
- if (mute == "no") {
- db["volume"] = sprintf("%s %s", left, right)
- } else if (mute == "yes") {
- db["volume"] = "X"
- } else {
- error("set_volume", "Unexpected value for 'mute' field: " mute)
- }
-}
-
-function set_mpd_song( key, val) {
- shift()
- key = $2
- shift()
- shift()
- val = $0
- db_mpd_song[key] = val
- debug("set_mpd_song", "", db_mpd_song)
-}
-
-function set_mpd_playing( \
- currently_playing, name, title, file, last, parts\
-) {
- debug("set_mpd_playing", "", db_mpd_song)
- name = db_mpd_song["Name:"]
- title = db_mpd_song["Title:"]
- file = db_mpd_song["file:"]
-
- if (name) {
- currently_playing = name
- } else if (title) {
- currently_playing = title
- } else if (file) {
- last = split(file, parts, "/")
- currently_playing = parts[last]
- } else {
- currently_playing = ""
- }
- db["mpd_playing_prev"] = db["mpd_playing_curr"]
- db["mpd_playing_curr"] = currently_playing
-
- alert_check_mpd()
-}
-
-function alert_check_mpd( curr, prev, name, body) {
- prev = db["mpd_playing_prev"]
- curr = db["mpd_playing_curr"]
- if (curr && curr != prev) {
- name = db_mpd_song["Name:"]
- if (name) {
- body = name
- } else {
- body = \
- db_mpd_song["Artist:"] \
- " - " db_mpd_song["Album:"] \
- " - " db_mpd_song["Title:"]
- }
- alert_trigger_low("alert_check_mpd", "MpdNowPlaying", body)
- }
-}
-
-# TODO: Generalize alert spec lang
-# - trigger threshold
-# - above/bellow/equal to threshold value
-# - priority
-# - snooze time (if already alerted, when to re-alert?)
-# - text: subject/body
-function alert_check_energy_battery( \
- from, dbg, state_curr, state_prev, remaining, subj, body\
-) {
- from = "alert_check_energy_battery"
-
- state_curr = db["energy_state_curr"]
- state_prev = db["energy_state_prev"]
- remaining = db["energy_percentage"]
-
- dbg["state_curr"] = state_curr
- dbg["remaining"] = remaining
- debug(from, "", dbg)
-
- if (state_curr == "discharging") {
- if (remaining < 5) {
- subj = "Energy_CRITICALLY_Low"
- body = sprintf("%d%% CHARGE NOW!!! GO GO GO!!!", remaining)
- alert_trigger_hi(from, subj, body)
- } else if (remaining < 10) {
- subj = "Energy_Very_Low"
- body = sprintf("%d%% Plug it in ASAP.", remaining)
- alert_trigger_hi(from, subj, body)
- } else if (remaining < 15) {
- subj = "Energy_Low"
- body = sprintf("%d%% Get the charger.", remaining)
- alert_trigger_hi(from, subj, body)
- } else if (remaining < 20) {
- subj = "Energy_Low"
- body = sprintf("%d%% Get the charger.", remaining)
- alert_trigger_med(from, subj, body)
- } else if (remaining < 50) {
- if (!state__alerts__energy__notified_bellow_half) {
- state__alerts__energy__notified_bellow_half = 1
- subj = "Energy_Bellow_Half"
- body = sprintf("%d%% Where is the charger?", remaining)
- alert_trigger_med(from, subj, body)
- }
- }
- } else {
- # TODO: Reconsider the competing global-state organizing-conventions
- state__alerts__energy__notified_bellow_half = 0
- }
-}
-
-function alert_check_energy_line_power( \
- from, dbg, line_power_curr, line_power_prev, subj, body \
-) {
- from = "alert_check_energy_line_power"
-
- dbg["energy_line_power_prev"] = db["energy_line_power_prev"]
- dbg["energy_line_power_curr"] = db["energy_line_power_curr"]
- debug(from, "", dbg)
-
- line_power_curr = db["energy_line_power_curr"]
- line_power_prev = db["energy_line_power_prev"]
-
- if (line_power_curr == "no" && line_power_prev != "no") {
- alert_trigger_low(from, "PowerUnplugged", "")
- }
-}
-
-function alert_trigger_low(from, subject, body) {
- alert_trigger("low", from, subject, body)
-}
-
-function alert_trigger_med(from, subject, body) {
- alert_trigger("med", from, subject, body)
-}
-
-function alert_trigger_hi(from, subject, body) {
- alert_trigger("hi", from, subject, body)
-}
-
-function alert_trigger(priority, from, subject, body, msg) {
- # priority : "low" | "med" | "hi"
- # subject : no spaces
- # body : anything
- msg = sprintf("khatus_%s %s %s %s", from, priority, subject, body)
- output_msg_alert(msg)
-}
-
-function output_msg_alert(msg) {
- # TODO: Should alerts go into a dedicated channel?
- output_msg("ALERT", msg, "/dev/stdout")
-}
-
-function output_msg_status_bar(msg) {
- output_msg("STATUS_BAR", msg, "/dev/stdout")
-}
-
-function output_msg(type, content, channel) {
- print(type, content) > channel
-}
-
-function set_load_avg( sched) {
- split($4, sched, "/")
- db["load_avg_1min"] = $1
- db["load_avg_5min"] = $2
- db["load_avg_15min"] = $3
- db["kern_sched_queue_runnable"] = sched[1]
- db["kern_sched_queue_total"] = sched[2]
- db["kern_sched_latest_pid"] = $5
-}
-
-function set_disk_io( curr_w, curr_r, prev_w, prev_r) {
- curr_w = $1
- curr_r = $2
- prev_w = db["disk_io_curr_w"]
- prev_r = db["disk_io_curr_r"]
- db["disk_io_curr_w"] = curr_w
- db["disk_io_curr_r"] = curr_r
- db["disk_io_diff_w"] = curr_w - prev_w
- db["disk_io_diff_r"] = curr_r - prev_r
-}
-
-function set_net_wifi_status( interface) {
- interface = $1
- shift()
- db["net_wifi_status", interface] = $0
-}
-
-function set_net_addr_io( \
- interface, address, io_curr_w, io_curr_r, io_prev_w, io_prev_r\
-) {
- interface = $1
- address = $2
- io_curr_w = $3
- io_curr_r = $4
- if (interface) {
- if (address && io_curr_w && io_curr_r) {
- # recalculate
- io_prev_w = net_io_curr_w[interface]
- io_prev_r = net_io_curr_r[interface]
-
- net_addr[interface] = address
- net_io_curr_w[interface] = io_curr_w
- net_io_curr_r[interface] = io_curr_r
- net_io_diff_w[interface] = io_curr_w - io_prev_w
- net_io_diff_r[interface] = io_curr_r - io_prev_r
- } else {
- # clear
- net_addr[interface] = ""
- net_io_curr_w[interface] = 0
- net_io_curr_r[interface] = 0
- net_io_diff_w[interface] = 0
- net_io_diff_r[interface] = 0
- }
- }
-}
-
-function set_screen_brightness( max, cur) {
- max = $1
- cur = $2
- db["screen_brightness"] = (cur / max) * 100
-}
-
-# TODO: Revise overuse of shift() where it is not really needed
-function shift() {
- sub("^" $1 " +", "")
-}
-
-function make_status_bar( position, bar, sep, i, j) {
- position[++i] = make_status_energy()
- position[++i] = make_status_mem()
- position[++i] = make_status_cpu()
- position[++i] = make_status_disk()
- position[++i] = make_status_net()
- position[++i] = sprintf("B=%s", db["bluetooth_power"])
- position[++i] = sprintf("*%d%%", db["screen_brightness"])
- position[++i] = sprintf("(%s)", db["volume"])
- position[++i] = make_status_mpd()
- position[++i] = db["weather_temperature"]
- position[++i] = db["datetime"]
- bar = ""
- sep = ""
- for (j = 1; j <= i; j++) {
- bar = bar sep position[j]
- sep = " "
- }
- return bar
-}
-
-function make_status_energy( state, direction_of_change) {
- state = db["energy_state_curr"]
- if (state == "discharging") {
- direction_of_change = "<"
- } else if (state == "charging") {
- direction_of_change = ">"
- } else {
- direction_of_change = "="
- };
- return sprintf("E%s%d%%", direction_of_change, db["energy_percentage"])
-}
-
-function make_status_mem( total, used, percent, status) {
- total = db["memory_total"]
- used = db["memory_used"]
- # To avoid division by zero when data is missing
- if (total && used) {
- percent = round((used / total) * 100)
- status = sprintf("%d%%", percent)
- } else {
- status = "__"
- }
- return sprintf("M=%s", status)
-}
-
-function make_status_cpu( load, temp, fan) {
- load = db["load_avg_1min"]
- temp = db["temperature"] / 1000
- fan = db["fan_speed"]
- return sprintf("C=[%4.2f %d°C %4drpm]", load, temp, fan)
-}
-
-function make_status_disk( bytes_per_sector, bytes_per_mb, w, r) {
- bytes_per_sector = 512
- bytes_per_mb = 1024 * 1024
- w = (db["disk_io_diff_w"] * bytes_per_sector) / bytes_per_mb
- r = (db["disk_io_diff_r"] * bytes_per_sector) / bytes_per_mb
- return \
- sprintf("D=[%s %0.3f▲ %0.3f▼]", db["disk_space_used"], w, r)
-}
-
-function make_status_net( \
- out,
- number_of_interfaces_to_show,
- n,
- array_of_prefixes_of_interfaces_to_show,
- prefix,
- interface,
- label,
- count_printed,
- sep,
- io_stat,
- dw, dr,
- bytes_per_unit\
-) {
- out = ""
- number_of_interfaces_to_show = \
- split(\
- opt_prefixes_of_net_interfaces_to_show,\
- array_of_prefixes_of_interfaces_to_show,\
- ","\
- )
- for (n = 1; n <= number_of_interfaces_to_show; n++) {
- prefix = array_of_prefixes_of_interfaces_to_show[n]
- for (interface in net_addr) {
- if (interface ~ ("^" prefix)) {
- label = substr(interface, 1, 1)
- if (net_addr[interface]) {
- bytes_per_mb = 1024 * 1024 # TODO: option
- dw = net_io_diff_w[interface] / bytes_per_mb
- dr = net_io_diff_r[interface] / bytes_per_mb
- io_stat = sprintf("%0.3f▲ %0.3f▼", dw, dr)
- } else {
- io_stat = "--"
- }
- if (interface ~ "^w") {
- label = label ":" db["net_wifi_status", interface]
- }
- if (++count_printed > 1) {
- sep = " "
- } else {
- sep = ""
- }
- out = out sep label ":" io_stat
- }
- }
- }
- return sprintf("N[%s]", out)
-}
-
-function make_status_mpd( state, status) {
- state = db["mpd_status_state"]
-
- if (state == "play") {
- status = make_status_mpd_state_known("▶")
- } else if (state == "pause") {
- status = make_status_mpd_state_known("❚❚")
- } else if (state == "stop") {
- status = make_status_mpd_state_known("⬛")
- } else {
- status = make_status_mpd_state_unknown("--")
- }
-
- return sprintf("[%s]", status)
-}
-
-function make_status_mpd_state_known(symbol) {
- return sprintf(\
- "%s %s %s %s",
- symbol,
- db["mpd_status_time"],
- db["mpd_status_percent"],
- substr(db["mpd_playing_curr"], 1, opt_mpd_song_max_chars)\
- )
-}
-
-function make_status_mpd_state_unknown(symbol) {
- return sprintf("%s", symbol)
-}
-
-function round(n) {
- return int(n + 0.5)
-}
-
-function debug(location, msg, values, sep, vals, key, payload) {
- if (opt_debug) {
- sep = ""
- vals = ""
- for (key in values) {
- vals = sprintf("%s%s%s: %s", vals, sep, key, values[key])
- sep = ", "
- }
- payload = \
- sprintf("LOCATION[%s] MSG[%s] DATA[%s]", location, msg, vals)
- output_msg("DEBUG", payload, "/dev/stderr")
- }
-}
-
-function error(location, msg) {
- # TODO: Reconsider classifying internal errors as alerts
- # Maybe better to keep the error class distinct and provide a
- # an optional transformation from error to alert
- alert_trigger_hi(location, "KhatusControllerError", msg)
-}
-
-function ensure_numeric(n) {
- return n + 0
-}
-#-------------------------------
-# Why do we need ensure_numeric?
-#-------------------------------
-# awk appears to be guessing the type of an inputted scalar based on usage, so
-# if we read-in a number, but did not use it in any numeric operations, but did
-# use as a string (even in just a format string!) - it will be treated as a
-# string and can lead to REALLY SURPRISING behavior in conditional statements,
-# where smaller number may compare as greater than the bigger ones, such as.
-#
-# Demo:
-#
-# $ awk 'BEGIN {x = "75"; y = "100"; sprintf("x: %d, y: %d\n", x, y); if (x > y) {print "75 > 100"} else if (x < y) {print "75 < 100"}}'
-# 75 < 100
-# $ awk 'BEGIN {x = "75"; y = "100"; sprintf("x: %s, y: %d\n", x, y); if (x > y) {print "75 > 100"} else if (x < y) {print "75 < 100"}}'
-# 75 > 100
-
-# However, once used as a number, seems to stay that way even after being
-# used as string:
-#
-# $ awk 'BEGIN {x = "75"; y = "100"; x + y; sprintf("x: %s, y: %d\n", x, y); if (x > y) {print "75 > 100"} else if (x < y) {print "75 < 100"}}'
-# 75 < 100
-#
-# $ awk 'BEGIN {x = "75"; y = "100"; x + y; sprintf("x: %s, y: %d\n", x, y); z = x y; if (x > y) {print "75 > 100"} else if (x < y) {print "75 < 100"}}'
-# 75 < 100
-#
-# $ awk 'BEGIN {x = "75"; y = "100"; x + y; z = x y; if (x > y) {print "75 > 100"} else if (x < y) {print "75 < 100"}}'
-# 75 < 100
-# $ awk 'BEGIN {x = "75"; y = "100"; z = x y; if (x > y) {print "75 > 100"} else if (x < y) {print "75 < 100"}}'
-# 75 > 100
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