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diff --git a/src/Plugins/Monitors/Mem.hs b/src/Plugins/Monitors/Mem.hs
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------------------------------------------------------------------------------
--- |
--- Module : Plugins.Monitors.Mem
--- Copyright : (c) Andrea Rossato
--- License : BSD-style (see LICENSE)
---
--- Maintainer : Jose A. Ortega Ruiz <jao@gnu.org>
--- Stability : unstable
--- Portability : unportable
---
--- A memory monitor for Xmobar
---
------------------------------------------------------------------------------
-
-module Plugins.Monitors.Mem (memConfig, runMem, totalMem, usedMem) where
-
-import Plugins.Monitors.Common
-import qualified Data.Map as M
-import System.Console.GetOpt
-
-data MemOpts = MemOpts
- { usedIconPattern :: Maybe IconPattern
- , freeIconPattern :: Maybe IconPattern
- , availableIconPattern :: Maybe IconPattern
- }
-
-defaultOpts :: MemOpts
-defaultOpts = MemOpts
- { usedIconPattern = Nothing
- , freeIconPattern = Nothing
- , availableIconPattern = Nothing
- }
-
-options :: [OptDescr (MemOpts -> MemOpts)]
-options =
- [ Option "" ["used-icon-pattern"] (ReqArg (\x o ->
- o { usedIconPattern = Just $ parseIconPattern x }) "") ""
- , Option "" ["free-icon-pattern"] (ReqArg (\x o ->
- o { freeIconPattern = Just $ parseIconPattern x }) "") ""
- , Option "" ["available-icon-pattern"] (ReqArg (\x o ->
- o { availableIconPattern = Just $ parseIconPattern x }) "") ""
- ]
-
-parseOpts :: [String] -> IO MemOpts
-parseOpts argv =
- case getOpt Permute options argv of
- (o, _, []) -> return $ foldr id defaultOpts o
- (_, _, errs) -> ioError . userError $ concat errs
-
-memConfig :: IO MConfig
-memConfig = mkMConfig
- "Mem: <usedratio>% (<cache>M)" -- template
- ["usedbar", "usedvbar", "usedipat", "freebar", "freevbar", "freeipat",
- "availablebar", "availablevbar", "availableipat",
- "usedratio", "freeratio", "availableratio",
- "total", "free", "buffer", "cache", "available", "used"] -- available replacements
-
-fileMEM :: IO String
-fileMEM = readFile "/proc/meminfo"
-
-parseMEM :: IO [Float]
-parseMEM =
- do file <- fileMEM
- let content = map words $ take 8 $ lines file
- info = M.fromList $ map (\line -> (head line, (read $ line !! 1 :: Float) / 1024)) content
- [total, free, buffer, cache] = map (info M.!) ["MemTotal:", "MemFree:", "Buffers:", "Cached:"]
- available = M.findWithDefault (free + buffer + cache) "MemAvailable:" info
- used = total - available
- usedratio = used / total
- freeratio = free / total
- availableratio = available / total
- return [usedratio, freeratio, availableratio, total, free, buffer, cache, available, used]
-
-totalMem :: IO Float
-totalMem = fmap ((*1024) . (!!1)) parseMEM
-
-usedMem :: IO Float
-usedMem = fmap ((*1024) . (!!6)) parseMEM
-
-formatMem :: MemOpts -> [Float] -> Monitor [String]
-formatMem opts (r:fr:ar:xs) =
- do let f = showDigits 0
- mon i x = [showPercentBar (100 * x) x, showVerticalBar (100 * x) x, showIconPattern i x]
- sequence $ mon (usedIconPattern opts) r
- ++ mon (freeIconPattern opts) fr
- ++ mon (availableIconPattern opts) ar
- ++ map showPercentWithColors [r, fr, ar]
- ++ map (showWithColors f) xs
-formatMem _ _ = replicate 10 `fmap` getConfigValue naString
-
-runMem :: [String] -> Monitor String
-runMem argv =
- do m <- io parseMEM
- opts <- io $ parseOpts argv
- l <- formatMem opts m
- parseTemplate l