contrib/statusd/statusd_drives.lua

   1 -- Authors: Voker57 <voker57@gmail.com>
   2 -- License: Public domain
   3 -- Last Changed: Unknown
   4 --
   5 -- Disk drives monitor
   6
   7 -- %drives - list of currently connected drives
   8
   9 -- by Voker57 <voker57@gmail.com>
  10 -- Public domain
  11
  12 local defaults={
  13     update_interval=500
  14 }
  15
  16 local settings=table.join(statusd.get_config("drives"), defaults)
  17
  18 local drives_timer
  19
  20 local function get_drives()
  21         local lsres = io.popen("ls /dev/sd* | sort")
  22         return lsres:lines()
  23 end
  24
  25 local function update_drives()
  26         local drives_list = get_drives()
  27         local drive_table = {}
  28         for drive in drives_list do
  29                 if drive:match("/([^/]+)$") then
  30                         local drive_name = drive:match("/([^/]+)$")
  31                         local drive_base = drive_name:sub(1,3)
  32                         local drive_partition = drive_name:sub(4,-1)
  33                         if drive_table[drive_base] then
  34                                 table.insert(drive_table[drive_base], drive_partition)
  35                         else
  36                                 drive_table[drive_base] = {drive_partition}
  37                         end
  38                 end
  39         end
  40         local result_table = {}
  41         for drive, partitions in pairs(drive_table) do
  42                 local result = drive
  43                 local parts = ""
  44                 for k,i in pairs(partitions) do
  45                         if i ~= "" then
  46                                 parts = parts..i.." "
  47                         end
  48                 end
  49                 if parts ~= "" then
  50                         result = result.."["..parts:sub(1,-2).."]"
  51                 end
  52                 table.insert(result_table, result)
  53         end
  54         table.sort(result_table)
  55         statusd.inform("drives", table.concat(result_table, " "))
  56         drives_timer:set(settings.update_interval, update_drives)
  57 end
  58
  59 -- Init
  60 drives_timer=statusd.create_timer()
  61 update_drives()