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#!/usr/bin/env runhaskell
\begin{code}
{-# LANGUAGE CPP #-}
import System.Environment
import System.FilePath
import System.Directory
import Data.List
import Control.Applicative
import Control.Monad
baseDir :: FilePath
baseDir = takeDirectory __FILE__
main :: IO ()
main = do
contents <- filter (not . ignore) <$> getDirectoryContents (baseDir </> "out")
args <- getArgs
mapM_ copyDir $ if not (null args)
then filter ((`elem` args) . takeBaseName) contents
else contents
where
ignore =
foldr (liftA2 (||)) (const False) [
(== ".")
, (== "..")
, isPrefixOf "index"
, isPrefixOf "doc-index"
]
-- | Copy a directory to ref, one level deep.
copyDir :: FilePath -> IO ()
copyDir dir = do
let old = baseDir </> "out" </> dir
new = baseDir </> "ref" </> dir
alreadyExists <- doesDirectoryExist new
unless alreadyExists $ do
putStrLn (old ++ " -> " ++ new)
createDirectoryIfMissing True new
files <- getDirectoryContents old >>= filterM (liftM not . doesDirectoryExist)
let files' = filter (\x -> x /= "." && x /= "..") files
mapM_ (\f -> copyFile' (old </> f) (new </> f)) files'
where
copyFile' o n = do
putStrLn $ o ++ " -> " ++ n
copyFile o n
\end{code}
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