ec267aa1ea
The explict import Prelude after import Control.Applicative is a trick to avoid a warning.
63 lines
1.9 KiB
Haskell
63 lines
1.9 KiB
Haskell
{- Linux library copier and binary shimmer
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-
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- Copyright 2013 Joey Hess <id@joeyh.name>
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-
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- License: BSD-2-clause
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-}
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module Utility.LinuxMkLibs where
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import Utility.PartialPrelude
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import Utility.Directory
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import Utility.Process
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import Utility.Monad
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import Utility.Path
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import Data.Maybe
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import System.Directory
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import System.FilePath
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import Data.List.Utils
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import System.Posix.Files
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import Data.Char
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import Control.Monad.IfElse
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import Control.Applicative
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import Prelude
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{- Installs a library. If the library is a symlink to another file,
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- install the file it links to, and update the symlink to be relative. -}
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installLib :: (FilePath -> FilePath -> IO ()) -> FilePath -> FilePath -> IO (Maybe FilePath)
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installLib installfile top lib = ifM (doesFileExist lib)
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( do
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installfile top lib
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checksymlink lib
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return $ Just $ parentDir lib
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, return Nothing
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)
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where
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checksymlink f = whenM (isSymbolicLink <$> getSymbolicLinkStatus (inTop top f)) $ do
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l <- readSymbolicLink (inTop top f)
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let absl = absPathFrom (parentDir f) l
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target <- relPathDirToFile (takeDirectory f) absl
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installfile top absl
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nukeFile (top ++ f)
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createSymbolicLink target (inTop top f)
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checksymlink absl
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-- Note that f is not relative, so cannot use </>
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inTop :: FilePath -> FilePath -> FilePath
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inTop top f = top ++ f
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{- Parse ldd output, getting all the libraries that the input files
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- link to. Note that some of the libraries may not exist
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- (eg, linux-vdso.so) -}
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parseLdd :: String -> [FilePath]
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parseLdd = mapMaybe (getlib . dropWhile isSpace) . lines
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where
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getlib l = headMaybe . words =<< lastMaybe (split " => " l)
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{- Get all glibc libs and other support files, including gconv files
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-
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- XXX Debian specific. -}
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glibcLibs :: IO [FilePath]
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glibcLibs = lines <$> readProcess "sh"
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["-c", "dpkg -L libc6:$(dpkg --print-architecture) libgcc1:$(dpkg --print-architecture) | egrep '\\.so|gconv'"]
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