awesome_configs/widgets/raid_linux.lua
2021-07-04 00:06:52 +02:00

68 lines
2.0 KiB
Lua

-- widget type providing RAID array information on GNU/Linux
-- Copyright (C) 2010 Hagen Schink <troja84@googlemail.com>
-- Copyright (C) 2017 mutlusun <mutlusun@github.com>
--
-- This file is part of Vicious.
--
-- Vicious is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as
-- published by the Free Software Foundation, either version 2 of the
-- License, or (at your option) any later version.
--
-- Vicious is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
-- {{{ Grab environment
local io = { open = io.open }
local string = {
len = string.len,
sub = string.sub,
match = string.match,
gmatch = string.gmatch
}
local helpers = require"vicious.helpers"
-- }}}
-- Initialize function tables
local mddev = {}
-- {{{ RAID widget type
return helpers.setcall(function (format, warg)
if not warg then return end
mddev[warg] = {
["found"] = false,
["active"] = 0,
["assigned"] = 0
}
-- Linux manual page: md(4)
local f = io.open("/proc/mdstat")
for line in f:lines() do
if mddev[warg]["found"] then
local updev = string.match(line, "%[[_U]+%]")
for _ in string.gmatch(updev, "U") do
mddev[warg]["active"] = mddev[warg]["active"] + 1
end
break
elseif string.sub(line, 1, string.len(warg)) == warg then
mddev[warg]["found"] = true
for _ in string.gmatch(line, "%[[%d]%]") do
mddev[warg]["assigned"] = mddev[warg]["assigned"] + 1
end
end
end
f:close()
return {mddev[warg]["assigned"], mddev[warg]["active"]}
end)
-- }}}