dotfiles/.ion3/statusd_laptopstatus.lua
2011-02-05 18:53:19 +01:00

213 lines
8.5 KiB
Lua

-- statusd_laptopstatus.lua v0.0.2 (last modified 2005-06-13)
--
-- Copyright (C) 2005 Jari Eskelinen <jari.eskelinen@iki.fi>
-- modified by René van Bevern <rvb@pro-linux.de> for error handling
--
-- Permission to copy, redistirbute, modify etc. is granted under the terms
-- of GNU GENERAL PUBLIC LICENSE Version 2.
--
-- This is script for displaying some interesting information about your
-- laptops power saving in Ion's status monitor. Script is very Linux
-- specific (uses /proc interface) and needs ACPI -support new enough (don't
-- know exactly but 2.6.x kernels should be fine). Also if you have some
-- kind of exotic hardware (multiple processors, multiple batteries etc.)
-- this script probably will fail or show incorrect information.
--
-- Just throw this script under ~/.ion3 and add following keywords to your
-- cfg_statusbar.lua's template-line with your own taste:
--
-- %laptopstatus_cpuspeed
-- %laptopstatus_temperature
-- %laptopstatus_batterypercent
-- %laptopstatus_batterytimeleft
-- %laptopstatus_batterydrain
--
-- Template example: template="[ %date || load:% %>load || CPU: %laptopstatus_cpuspeed %laptopstatus_temperature || BATT: %laptopstatus_batterypercent %laptopstatus_batterytimeleft %laptopstatus_batterydrain ]"
--
-- You can also run this script with lua interpreter and see if you get
-- right values.
--
-- NOTICE: This is my first ion/lua-script, so probably this can be done better.
-- Feel free to improve this script.
--
-- TODO: * Is it stupid to use file:read("*all"), can this cause infinite
-- loops in some weird situations?
-- * Do not poll for information not defined in template to be used
-- * Auto-detect right acpi devices instead of hardcoded BATT0 etc.
--
-- SETTINGS
--
if not statusd_laptopstatus then
statusd_laptopstatus = {
interval = 10, -- Polling interval in seconds
temperature_important = 66, -- Temperature which will cause important hint
temperature_critical = 71, -- Temperature which will cause critical hint
batterypercent_important = 10, -- Battery percent which will cause important hint
batterypercent_critical = 5, -- Battery percent which will cause critical hint
batterytimeleft_important = 600, -- Battery time left (in secs) which will cause important hint
batterytimeleft_critical = 300, -- Battery time left (in secs) which will cause critical hint
ac_state = {"/proc/acpi/ac_adapter/AC/state",
"/proc/acpi/ac_adapter/ACAD/state",
"/proc/acpi/ac_adapter/ADP0/state",
"/proc/acpi/ac_adapter/ADP1/state"},
temp_info = {"/proc/acpi/thermal_zone/THRM/temperature",
"/proc/acpi/thermal_zone/THM/temperature",
"/proc/acpi/thermal_zone/THM0/temperature",
"/proc/acpi/thermal_zone/THM1/temperature"},
bat_info = {"/proc/acpi/battery/BAT0/info",
"/proc/acpi/battery/BAT1/info"},
bat_state = {"/proc/acpi/battery/BAT0/state",
"/proc/acpi/battery/BAT1/state"}
}
end
statusd_laptopstatus=table.join(statusd.get_config("laptopstatus"), statusd_laptopstatus)
--
-- CODE
--
local laptopstatus_timer
function try_open(files, mode)
for _, file in pairs(files) do
local fd = io.open(file, mode)
if fd then return fd, file end
end
end
local function get_cpu()
local mhz, hint
if pcall(function ()
local status
local file = io.open("/proc/cpuinfo", "r")
status, _, mhz = string.find(file:read("*all"),
"cpu MHz%s+: (%d+)")
if not status then error("could not get MHz") end
file:close()
end)
then return {speed=string.format("%4dMHz", math.ceil(mhz/5)*5),
hint=hint}
else return {speed="n/a", hint=hint} end
end
local function get_ac()
local file = try_open(statusd_laptopstatus.ac_state, "r")
if not string.find(file:read("*all"), "state:%s+on.line") then return 0
else return 1 end
file:close()
end
local function get_thermal()
local temp, hint = nil, "normal"
if pcall(function ()
local status
local file=try_open(statusd_laptopstatus.temp_info, "r")
status, _, temp = string.find(file:read("*all"),
"temperature:%s+(%d+).*")
if not status then error("could not get temperature") end
temp = tonumber(temp)
file:close();
end)
then if temp >= statusd_laptopstatus.temperature_important then
hint = "important" end
if temp >= statusd_laptopstatus.temperature_critical then
hint = "critical" end
return {temperature=string.format("%02dC", temp), hint=hint}
else return {temperature="n/a", hint = "hint"} end
end
local function get_battery()
local percenthint = "normal"
local timelefthint = "normal"
local lastfull, rate, rateunit, remaining
if pcall(function ()
local status
local file=try_open(statusd_laptopstatus.bat_info, "r")
local infocontents = file:read("*all")
file:close();
local file=try_open(statusd_laptopstatus.bat_state, "r")
local statecontents = file:read("*all")
file:close();
status, _, lastfull = string.find(infocontents, "last full capacity:%s+(%d+).*")
if not status then error("could not get full battery capacity") end
lastfull = tonumber(lastfull)
if string.find(statecontents, "present rate:%s+unknown.*") then
rate = -1
else
status, _, rate, rateunit = string.find(statecontents, "present rate:%s+(%d+)(.*)")
if not status then error("could not get battery draining-rate") end
rate = tonumber(rate)
end
status, _, remaining = string.find(statecontents, "remaining capacity:%s+(%d+).*")
if not status then error("could not get remaining capacity") end
remaining = tonumber(remaining)
end) then
local percent = math.floor(remaining / lastfull * 100 + 5/10)
local timeleft
local hours, secs, mins
if get_ac() == 1 then
timeleft = " *AC*"
elseif rate <= 0 then
timeleft = "n/a"
else
secs = 3600 * (remaining / rate)
mins = secs / 60
hours = math.floor(mins / 60)
mins = math.floor(mins - (hours * 60))
timeleft = string.format("%02d:%02d", hours, mins)
end
if secs ~= nil and secs <= statusd_laptopstatus.batterytimeleft_important then timelefthint = "important" end
if secs ~= nil and secs <= statusd_laptopstatus.batterytimeleft_critical then timelefthint = "critical" end
if percent <= statusd_laptopstatus.batterypercent_important then percenthint = "important" end
if percent <= statusd_laptopstatus.batterypercent_critical then percenthint = "critical" end
return { percent=string.format("%02d%%", percent), timeleft=timeleft, drain=tostring(rate)..rateunit, percenthint=percenthint, timelefthint=timelefthint}
else return { percent="n/a", timeleft="n/a", drain="n/a", percenthint=percenthint, timelefthint=timelefthint} end
end
local last_timeleft = nil
local function update_laptopstatus ()
cpu = get_cpu()
thermal = get_thermal()
battery = get_battery()
-- Informing statusd OR printing to stdout if statusd not present
if statusd ~= nil then
statusd.inform("laptopstatus_cpuspeed", cpu.speed)
statusd.inform("laptopstatus_cpuspeed_template", "xxxxMHz")
statusd.inform("laptopstatus_cpuspeed_hint", cpu.hint)
statusd.inform("laptopstatus_temperature", thermal.temperature)
statusd.inform("laptopstatus_temperature_template", "xxxC")
statusd.inform("laptopstatus_temperature_hint", thermal.hint)
statusd.inform("laptopstatus_batterypercent", battery.percent)
statusd.inform("laptopstatus_batterypercent_template", "xxx%")
statusd.inform("laptopstatus_batterypercent_hint", battery.percenthint)
if battery.timeleft ~= "n/a" or last_timeleft == " *AC*" then
statusd.inform("laptopstatus_batterytimeleft", battery.timeleft)
last_timeleft = battery.timeleft
end
statusd.inform("laptopstatus_batterytimeleft_template", "hh:mm")
statusd.inform("laptopstatus_batterytimeleft_hint", battery.timelefthint)
statusd.inform("laptopstatus_batterydrain", battery.drain)
laptopstatus_timer:set(statusd_laptopstatus.interval*1000, update_laptopstatus)
else
io.stdout:write("CPU: "..cpu.speed.." "..thermal.temperature.." || BATT: "..battery.percent.." "..battery.timeleft.."\n")
end
end
if statusd ~= nil then
laptopstatus_timer = statusd.create_timer()
end
update_laptopstatus()