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{- Linux library copier and binary shimmer
-
- Copyright 2013 Joey Hess <id@joeyh.name>
-
- License: BSD-2-clause
-}
module Utility.LinuxMkLibs where
import System.IO
import System.Directory (doesFileExist)
import Data.Maybe
import System.FilePath
import Data.List.Utils
import System.Posix.Files
import Data.Char
import Control.Monad.IfElse
import Control.Applicative
import System.Process
import Prelude
{- Installs a library. If the library is a symlink to another file,
- install the file it links to, and update the symlink to be relative. -}
installLib :: (FilePath -> FilePath -> IO ()) -> FilePath -> FilePath -> IO (Maybe FilePath)
installLib installfile top lib = go =<< doesFileExist lib
where
go False = return Nothing
go True = do
installfile top lib
checksymlink lib
return $ Just $ takeDirectory lib
checksymlink f = whenM (isSymbolicLink <$> getSymbolicLinkStatus (inTop top f)) $ do
l <- readSymbolicLink (inTop top f)
let absl = takeDirectory f </> l
--target <- relPathDirToFile (takeDirectory f) absl
installfile top absl
--removeLink (top ++ f)
--createSymbolicLink target (inTop top f)
checksymlink absl
-- Note that f is not relative, so cannot use </>
inTop :: FilePath -> FilePath -> FilePath
inTop top f = top ++ f
{- Parse ldd output, getting all the libraries that the input files
- link to. Note that some of the libraries may not exist
- (eg, linux-vdso.so) -}
parseLdd :: String -> [FilePath]
parseLdd = concatMap (getlib . dropWhile isSpace) . lines
where
getlib = concatMap (take 1) . map words . take 1 . reverse . split " => "
{- Get all glibc libs and other support files, including gconv files
-
- XXX Debian specific. -}
glibcLibs :: IO [FilePath]
glibcLibs = lines <$> readProcess "sh"
["-c", "dpkg -L libc6:$(dpkg --print-architecture) libgcc1:$(dpkg --print-architecture) | egrep '\\.so|gconv'"]
mempty
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