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|
-----------------------------------------------------------------------------
-- |
-- Module : Plugins.Monitors.CoreTemp
-- Copyright : (c) 2019 Felix Springer
-- License : BSD-style (see LICENSE)
--
-- Maintainer : Felix Springer <felixspringer149@gmail.com>
-- Stability : unstable
-- Portability : unportable
--
-- A core temperature monitor for Xmobar
--
-----------------------------------------------------------------------------
module Xmobar.Plugins.Monitors.CoreTemp (startCoreTemp) where
import Xmobar.Plugins.Monitors.Common
import Control.Monad (filterM)
import System.Console.GetOpt
import System.Directory ( doesDirectoryExist
, doesFileExist
)
-- | Declare Options.
data CTOpts = CTOpts { loadIconPattern :: Maybe IconPattern
, mintemp :: Float
, maxtemp :: Float
}
-- | Set default Options.
defaultOpts :: CTOpts
defaultOpts = CTOpts { loadIconPattern = Nothing
, mintemp = 0
, maxtemp = 100
}
-- | Apply configured Options.
options :: [OptDescr (CTOpts -> CTOpts)]
options = [ Option [] ["load-icon-pattern"]
(ReqArg
(\ arg opts -> opts { loadIconPattern = Just $ parseIconPattern arg })
"")
""
, Option [] ["mintemp"]
(ReqArg
(\ arg opts -> opts { mintemp = read arg })
"")
""
, Option [] ["maxtemp"]
(ReqArg
(\ arg opts -> opts { maxtemp = read arg })
"")
""
]
-- | Parse Arguments and apply them to Options.
parseOpts :: [String] -> IO CTOpts
parseOpts argv = case getOpt Permute options argv of
(opts , _ , [] ) -> return $ foldr id defaultOpts opts
(_ , _ , errs) -> ioError . userError $ concat errs
-- | Generate Config with a default template and options.
cTConfig :: IO MConfig
cTConfig = mkMConfig cTTemplate cTOptions
where cTTemplate = "Temp: <max>°C - <maxpc>%"
cTOptions = [ "max" , "maxpc" , "maxbar" , "maxvbar" , "maxipat"
, "avg" , "avgpc" , "avgbar" , "avgvbar" , "avgipat"
] ++ map (("core" ++) . show) [0 :: Int ..]
-- | Returns the first coretemp.N path found.
coretempPath :: IO String
coretempPath = do xs <- filterM doesDirectoryExist ps
let x = head xs
return x
where ps = [ "/sys/bus/platform/devices/coretemp." ++ show (x :: Int) ++ "/" | x <- [0..9] ]
-- | Returns the first hwmonN path found.
hwmonPath :: IO String
hwmonPath = do p <- coretempPath
xs <- filterM doesDirectoryExist [ p ++ "hwmon/hwmon" ++ show (x :: Int) ++ "/" | x <- [0..9] ]
let x = head xs
return x
-- | Checks Labels, if they refer to a core and returns Strings of core-
-- temperatures.
corePaths :: IO [String]
corePaths = do p <- hwmonPath
ls <- filterM doesFileExist [ p ++ "temp" ++ show (x :: Int) ++ "_label" | x <- [0..9] ]
cls <- filterM isLabelFromCore ls
return $ map labelToCore cls
-- | Checks if Label refers to a core.
isLabelFromCore :: FilePath -> IO Bool
isLabelFromCore p = do a <- readFile p
return $ take 4 a == "Core"
-- | Transform a path to Label to a path to core-temperature.
labelToCore :: FilePath -> FilePath
labelToCore = (++ "input") . reverse . drop 5 . reverse
-- | Reads core-temperatures as data from the system.
cTData :: IO [Float]
cTData = do fps <- corePaths
traverse readSingleFile fps
where readSingleFile :: FilePath -> IO Float
readSingleFile s = do a <- readFile s
return $ parseContent a
where parseContent :: String -> Float
parseContent = read . head . lines
-- | Transforms data of temperatures into temperatures of degree Celsius.
parseCT :: IO [Float]
parseCT = do rawCTs <- cTData
let normalizedCTs = map (/ 1000) rawCTs :: [Float]
return normalizedCTs
-- | Performs calculation for maximum and average.
-- Sets up Bars and Values to be printed.
formatCT :: CTOpts -> [Float] -> Monitor [String]
formatCT opts cTs = do let CTOpts { mintemp = minT
, maxtemp = maxT } = opts
domainT = maxT - minT
maxCT = maximum cTs
avgCT = sum cTs / fromIntegral (length cTs)
calcPc t = (t - minT) / domainT
maxCTPc = calcPc maxCT
avgCTPc = calcPc avgCT
cs <- traverse showTempWithColors cTs
m <- showTempWithColors maxCT
mp <- showWithColors' (show (round (100*maxCTPc) :: Int)) maxCT
mb <- showPercentBar maxCT maxCTPc
mv <- showVerticalBar maxCT maxCTPc
mi <- showIconPattern (loadIconPattern opts) maxCTPc
a <- showTempWithColors avgCT
ap <- showWithColors' (show (round (100*avgCTPc) :: Int)) avgCT
ab <- showPercentBar avgCT avgCTPc
av <- showVerticalBar avgCT avgCTPc
ai <- showIconPattern (loadIconPattern opts) avgCTPc
let ms = [ m , mp , mb , mv , mi ]
as = [ a , ap , ab , av , ai ]
return (ms ++ as ++ cs)
where showTempWithColors :: Float -> Monitor String
showTempWithColors = showWithColors (show . (round :: Float -> Int))
runCT :: [String] -> Monitor String
runCT argv = do cTs <- io parseCT
opts <- io $ parseOpts argv
l <- formatCT opts cTs
parseTemplate l
startCoreTemp :: [String] -> Int -> (String -> IO ()) -> IO ()
startCoreTemp a = runM a cTConfig runCT
|
