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---------------------------------------------------
-- Licensed under the GNU General Public License v2
-- * (c) 2014, Adrian C. <anrxc@sysphere.org>
---------------------------------------------------
-- {{{ Grab environment
local tonumber = tonumber
local io = { popen = io.popen }
local setmetatable = setmetatable
local string = { match = string.match }
-- }}}
-- nvsmi: provides GPU information from nvidia SMI
-- vicious.contrib.nvsmi
local nvsmi = {}
-- {{{ GPU Information widget type
local function worker(format, warg)
-- Fallback to querying first device
if not warg then warg = "0" end
-- Get data from smi
-- * Todo: support more; MEMORY,UTILIZATION,ECC,POWER,CLOCK,COMPUTE,PIDS,PERFORMANCE
local f = io.popen("nvidia-smi -q -d TEMPERATURE -i " .. warg)
local smi = f:read("*all")
f:close()
-- Not installed
if smi == nil then return {0} end
-- Get temperature information
local _thermal = string.match(smi, "Gpu[%s]+:[%s]([%d]+)[%s]C")
-- Handle devices without data
if _thermal == nil then return {0} end
return {tonumber(_thermal)}
end
-- }}}
return setmetatable(nvsmi, { __call = function(_, ...) return worker(...) end })
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