darcs-graph (empty) → 0.1
raw patch · 4 files changed
+664/−0 lines, 4 filesdep +basedep +fpsbuild-type:Customsetup-changed
Dependencies added: base, fps
Files
- Graph.hs +307/−0
- LICENSE +342/−0
- Setup.hs +3/−0
- darcs-graph.cabal +12/−0
+ Graph.hs view
@@ -0,0 +1,307 @@+--+-- Copyright (c) 2006 Don Stewart - http://www.cse.unsw.edu.au/~dons+-- GPL version 2 or later (see http://www.gnu.org/copyleft/gpl.html)+--++--+-- darcs-graph:+-- generate .png graphs of commit activity of a darcs repository, +-- including a 7 day sliding average+--+-- requires gnuplot+--++import Data.List+import Data.Maybe+import qualified Data.IntMap as I++import Data.ByteString.Char8 (ByteString,append,pack,unpack)+import qualified Data.ByteString.Char8 as C++import Control.Exception (bracket,handle)+import Control.Monad (when)++import Foreign.C.Error+import Foreign.Storable (peek)+import Foreign.Ptr (Ptr, nullPtr)+import Foreign.Marshal (alloca)++import System.Console.GetOpt+import System.Environment (getArgs)+import System.Posix.Internals+import System.IO.Error (modifyIOError, ioeSetFileName)+import System.IO+import System.IO.Unsafe+import System.Time+import System.Directory+import System.Process++tmp :: FilePath+tmp = unsafePerformIO $ getTemporaryDirectory++data Flag = DateFlag String | YFlag Int | Help+ deriving (Show,Eq)++options :: [OptDescr Flag]+options = [+ Option ['f'] ["filter"] (ReqArg (\s -> DateFlag s) "DATE")+ "Don't display patches before date. Date is in format \"yyymmdd\"",+ Option ['y'] ["y"] (ReqArg (\s -> YFlag (read s)) "INT")+ "Vertical scale of graphs. Integer.",+ Option ['h'] ["help"] (NoArg Help)+ "Display this help"+ ]++usage :: String+usage = usageInfo "usage: darcs-graph [options] repo\n" options++readOptions :: (Monad m) => [String] -> m ([Flag], [String])+readOptions args =+ case getOpt Permute options args of+ (o, n, []) -> return (o, n)+ (_, _, errs) -> fail $ unlines errs++getFilter :: [Flag] -> Maybe ByteString+getFilter l =+ let l' = [s | (DateFlag s) <- l]+ in if null l' then Nothing else Just . pack . head $ l'++getYFlag :: [Flag] -> Maybe Int+getYFlag l =+ let l' = [i | (YFlag i) <- l]+ in if null l' then Nothing else Just . head $ l'++data Range = Small | Big | Normal+ deriving Eq++-- let's go+main :: IO ()+main = do+ args <- getArgs+ (flags, remaining) <- readOptions args+ when (null remaining || length remaining > 1 || Help `elem` flags) $ error usage+ let path = pack . head $ remaining+ mfilter = getFilter flags+ mymax = getYFlag flags++ -- aquire some temp files, make sure to clean them up afterwards+ bracket+ (do x <- openTempFile tmp "darcs-graph.data"+ y <- openTempFile tmp "darcs-graph-average.data"+ return (x,y))+ (\((f,_),(g,_)) -> removeFile f >> removeFile g) $ \((f,h),(g,i)) -> do++ -- read patches dir, count patch dates, and write to temp file+ ps <- readDir (path `append` pack "/_darcs/patches/")++ let stats' = uniq . sort . map (C.take 8) . filter ignore $ ps++ -- filter out stats earlier than 'yyyymmdd'+ let stats | (Just date) <- mfilter = filter (\(x,_) -> x > date) stats'+ | otherwise = stats'++ when (null stats) $ error $ "no patches found in: "++unpack path+ (C.hPutStr h . C.unlines . map fmt) stats >> hClose h++ -- now work out the sliding average, and write it out too+ let days = enumDates (toClock . fst . head $ stats) (toClock . fst . last $ stats)+ avrg = sliding (map readFst stats) (map toInt days)+ (C.hPutStr i . C.unlines . map fmt') avrg >> hClose i++ -- now run gnuplot on the result+ let proj = (unpack . basename $ path)+ script = gnuplotScript f -- handle small repos + -- can't generate average with less than 7 points,+ -- and the sliding line needs 3 points to plot csplines+ (if length days >= window && length avrg >= 3+ then Just g+ else Nothing)++ (if length days < 120+ then Small+ else if length days > 2500+ then Big+ else Normal) -- only print days or months if range is ok+ proj+ mymax++ (ih,_,eh,pid) <- handle+ (\e -> error $ "Couldn't fork gnuplot: " ++ show e)+ (do mgnu <- findExecutable "gnuplot"+ case mgnu of+ Nothing -> error "Cannot find gnuplot"+ Just gnuplot -> runInteractiveCommand gnuplot)++ hPutStrLn ih script >> hClose ih -- write into gnuplot+ hGetContents eh >>= putStr -- dump any error output it produces+ waitForProcess pid++ putStrLn $ "Output written to: " ++ tmp </> proj ++ "-commits.png"++ where+ readFst (a,b) = ((fst . fromJust . C.readInt) a, b)+ uniq = map (\n -> (head n, length $ n)) . group++ fmt (s,n) = C.joinWithChar ' ' s (pack . show $ n)+ fmt' (n,d) = C.joinWithChar ' ' (pack.show $ n) (pack.show $ d)++ ignore f = f /= pack "pending"+ && f /= pack "unrevert"+ && not (pack "." `C.isPrefixOf` f)++------------------------------------------------------------------------+-- Dealing with clock times++--+-- enumerate all the days, as ClockTimes, between the two dates+--+enumDates :: ClockTime -> ClockTime -> [ClockTime]+enumDates d0 dn = map (\d -> addToClockTime (TimeDiff 0 0 d 0 0 0 0) d0) [0 .. days]+ where+ t = diffClockTimes dn d0+ days = floor (((fromIntegral $ tdSec t) / 60 / 60 / 24) :: Double)++--+-- convert a date packed in a bytestring to a ClockTime+-- yyyymmdd format.+--+toClock :: ByteString -> ClockTime+toClock x = toClockTime $ CalendarTime {+ ctYear = y,+ ctMonth = toEnum (m-1) :: Month,+ ctDay = d,+ ctHour = 0, ctMin = 0, ctSec = 0, ctPicosec = 0,+ ctWDay = undefined, ctYDay = undefined,+ ctTZName = "GMT", ctTZ = 0 , ctIsDST = False+ }+ where (y,m,d) = split x++ -- read the bytestring as a triple of yyyymmdd+ split s = let a = fst . fromJust . C.readInt . C.take 4 $ s+ b = fst . fromJust . C.readInt . C.drop 4 . C.take 6 $ s+ c = fst . fromJust . C.readInt . C.drop 6 . C.take 8 $ s+ in (a,b,c)++--+-- convert a ClockTime back to an Int in yyyymmdd format+--+toInt :: ClockTime -> Int+toInt ct = read $ show yyyy ++ show0 mm ++ show0 dd+ where yyyy = ctYear cl+ mm = fromEnum (ctMonth cl) + 1+ dd = ctDay cl++ cl = unsafePerformIO (toCalendarTime ct)+ show0 n | n < 10 && n >= 0 = '0' : show n+ | otherwise = show n++-- sliding average window+window :: Int+window = 7++--+-- compute the 7-day sliding average, starting with a sparse sequence+--+sliding :: [(Int,Int)] -> [Int] -> [(Int,Double)]+sliding [] _ = []+sliding xs days = [ (i,slidingAv i) | i <- days' ]+ where+ m = window `div` 2 -- 1/2 n ++ days' = drop m . take (max 0 (length days - window+m+1)) $ days+ table = I.fromList xs :: I.IntMap Int -- to handle missing elems easily++ slidingAv :: Int -> Double+ slidingAv i = fromIntegral (sum seqN) / fromIntegral window+ where seqN = map (\j -> I.findWithDefault 0 j table) [i-m..i+(window-m-1)]++--+-- generate the gnuplot script. only generate the avergage line, if+-- there repo day range is larger than a window+--+gnuplotScript :: FilePath -> Maybe FilePath -> Range -> String -> Maybe Int -> String+gnuplotScript f mg range p mymax = header ++ case mg of+ Nothing -> "plot \""++f++"\" using 1:2 with points pointsize 0.5 pointtype 2\n"+ Just g -> "plot \"" +++ f++"\" using 1:2 with points pointsize 0.5 pointtype 2, \"" +++ g++"\" using 1:2 smooth csplines 2\n"++ where header = unlines+ ["set xdata time"+ ,"set timefmt \"%Y%m%d\""+ ,case range of+ Small -> "set format x\"%y%m%d\""+ Normal -> "set format x\"%y%m\""+ Big -> "set format x\"%y\""+ ,"set size 1,0.4"+ ,"set mxtics 0"+ ,"set xtics nomirror"+ ,"set ytics nomirror"+ ,"set border 3"+ ,"set yrange [0:" ++ (if isNothing mymax then "*" else show . fromJust $ mymax) ++ "]"+ ,"set title \""++p++" commits per day and 7-day sliding average\""+ ,"unset key"+ ,"set ylabel \"commits per day\""++-- To use a TTF font, set the GDFONTPATH=/home/dons/TTF, and uncomment+-- this line:+-- ,"set terminal png font Vera 9 xffffff x000000 x404040 xd0d0d0 x0000ff"++ ,"set terminal png small xffffff x000000 x404040 xd0d0d0 x0000ff"+ ,"set output \"" ++ tmp </> p ++"-commits.png\""]++-- +-- ByteString utilities+--++-- | Packed string version of basename+basename :: ByteString -> ByteString+basename fps = case C.elemIndexEnd '/' s of+ Nothing -> fps+ Just i -> C.drop (i+1) s+ where s = C.reverse . C.dropWhile (=='/') . C.reverse $ fps++--+-- | Packed version of get directory contents. super fast+--+readDir :: ByteString -> IO [ByteString]+readDir path = do+ modifyIOError (`ioeSetFileName` (unpack path)) $+ alloca $ \ ptr_dEnt ->+ bracket+ (C.useAsCString path $ \s ->+ throwErrnoIfNullRetry desc (c_opendir s))+ (\p -> throwErrnoIfMinus1_ desc (c_closedir p))+ (\p -> loop ptr_dEnt p)+ where+ desc = "readDir"++ loop :: Ptr (Ptr CDirent) -> Ptr CDir -> IO [ByteString]+ loop ptr_dEnt dir = do+ resetErrno+ r <- readdir dir ptr_dEnt+ if (r == 0)+ then do dEnt <- peek ptr_dEnt+ if (dEnt == nullPtr)+ then return []+ else do -- copy entry out before we free:+ entry <- C.copyCString =<< d_name dEnt+ C.length entry `seq` return () -- strictify+ freeDirEnt dEnt+ entries <- loop ptr_dEnt dir+ return $! (entry:entries)++ else do errno <- getErrno+ if (errno == eINTR)+ then loop ptr_dEnt dir+ else do let (Errno eo) = errno+ if (eo == end_of_dir)+ then return []+ else throwErrno desc++-- useful+infixr 6 </>++(</>) :: FilePath -> FilePath -> FilePath+[] </> b = b+a </> b = a ++ "/" ++ b
+ LICENSE view
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+ Setup.hs view
@@ -0,0 +1,3 @@+#!/usr/bin/env runhaskell+import Distribution.Simple+main = defaultMainWithHooks defaultUserHooks
+ darcs-graph.cabal view
@@ -0,0 +1,12 @@+Name: darcs-graph+Version: 0.1+License: GPL+License-file: LICENSE+Author: Don Stewart+Maintainer: dons@cse.unsw.edu.au+Build-Depends: base, fps>=0.7++Executable: darcs-graph+Main-is: Graph.hs+ghc-options: -fglasgow-exts -Wall -Werror -O -funbox-strict-fields -optl-Wl,-s+