contrib/statusd/legacy/statusd_apm2.lua

   1 -- Authors: Greg Steuck, Gerald Young <ion3script@gwy.org>
   2 -- License: Public domain
   3 -- Last Changed: Unknown
   4 --
   5 -- Public domain, written by Greg Steuck
   6 -- Edited and updated by Gerald Young -- ion3script@gwy.org
   7 -- This works on FreeBSD's apm (5.x) program added some color to indicate
   8 -- AC connection and status (Charging, low, critical)
   9 -- Allows displaying apm information in the statusbar.
  10 -- To install:
  11 --    save this file into ~/.ion3/statusd_apm.lua,
  12 --    copy the default cfg_statusbar.lua to ~/.ion3, edit it to include (~line 81):
  13 --    -- Battery meter
  14 --    --[[
  15 --    apm={},
  16 --    --]]
  17 --       add some of the following fields into your template in cfg_statusbar.lua:
  18 --       %apm_ac: A/C cable on-line (connected) off-line (disconnected)
  19 --       %apm_pct: percent of remaining battery
  20 --       %apm_estimate: time remaining based upon usage ... or whatever apm thinks.
  21 --       %apm_state: Status: charging/high/low/critical
  22 -- in cfg_statusbar.lua, about line 28, add the next line without the leading "--"
  23 -- template="[ %date || load:% %>load_1min || battery: %apm_pct AC: %apm_ac Status: %apm_state ]",
  24 -- If you've already customized your template= line, then simply add the field(s) where you want.
  25
  26 local unknown = "?", "?", "?", "?"
  27
  28 -- Runs apm utility and grabs relevant pieces from its output.
  29 -- Most likely will only work on OpenBSD due to reliance on its output pattern.
  30 function get_apm()
  31     local f=io.popen('/usr/sbin/apm', 'r')
  32     if not f then
  33         return unknown
  34     end
  35     local s=f:read('*all')
  36     f:close()
  37     local _, _, ac, state, pct, estimate =
  38         string.find(s,
  39                       "AC Line status: (.*)\n"..
  40                       "Battery Status: (.*)\n"..
  41                       "Remaining battery life: (.*)\n"..
  42                       "Remaining battery time: (.*)\n"
  43                        )
  44     if not state then
  45         return unknown
  46     end
  47     return state, pct, estimate, ac
  48 end
  49
  50 local function inform(key, value)
  51     statusd.inform("apm_"..key, value)
  52 end
  53
  54 local apm_timer = statusd.create_timer()
  55
  56 local function update_apm()
  57     local state, pct, estimate, ac = get_apm()
  58     local stateinf
  59     if state=="low" then
  60         stateinf = "important"
  61     end
  62     if state == "critical" then
  63         stateinf = "critical"
  64     end
  65     if state == "charging" then
  66         stateinf = "important"
  67     end
  68     inform("state", state)
  69     inform("state_hint", stateinf)
  70     inform("pct", pct)
  71     inform("estimate", estimate)
  72     if ac == "off-line" then
  73         stateinf="critical"
  74     end
  75     if ac == "on-line" then
  76         stateinf="important"
  77     end
  78     inform("ac", ac)
  79     inform("ac_hint", stateinf)
  80     apm_timer:set(60*1000, update_apm)
  81 end
  82
  83 update_apm()
  84