57 lines
2.0 KiB
Haskell
57 lines
2.0 KiB
Haskell
{-# LANGUAGE ScopedTypeVariables #-}
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module Main where
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import Language.Haskell.Exts
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import Data.List
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import System.Directory
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import System.FilePath
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import System.Posix.Files
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import Control.Monad
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import Control.Applicative ((<$>))
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import Control.Exception
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main = do
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modules <- findAllModules
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mapM_ qa modules
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where qa file = do
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putStrLn ("==== " ++ file)
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content <- readFile file
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let mexts = readExtensions content
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case mexts of
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Nothing -> printError "[ERR] failed to parsed extension"
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Just (_, exts) -> putStrLn ("extensions : " ++ (intercalate ", " $ map show exts))
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printError = putStrLn
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findAllModules :: IO [FilePath]
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findAllModules = dirTraverse "Crypto" fileCallback dirCallback []
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where
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fileCallback a m = return (if isSuffixOf ".hs" m then (m:a) else a)
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dirCallback a d
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| isSuffixOf "/.git" d = return (False, a)
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| otherwise = return (True, a)
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-- | Traverse directories and files starting from the @rootDir
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dirTraverse :: FilePath
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-> (a -> FilePath -> IO a)
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-> (a -> FilePath -> IO (Bool, a))
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-> a
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-> IO a
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dirTraverse rootDir fFile fDir a = loop a rootDir
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where loop a dir = do
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content <- try $ getDir dir
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case content of
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Left (exn :: SomeException) -> return a
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Right l -> foldM (processEnt dir) a l
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processEnt dir a ent = do
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let fp = dir </> ent
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stat <- getSymbolicLinkStatus fp
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case (isDirectory stat, isRegularFile stat) of
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(True,_) -> do (process,a') <- fDir a fp
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if process
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then loop a' fp
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else return a'
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(False,True) -> fFile a fp
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(False,False) -> return a
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getDir dir = filter (not . flip elem [".",".."]) <$> getDirectoryContents dir
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