78 lines
2.3 KiB
Haskell
78 lines
2.3 KiB
Haskell
{- Linux library copier and binary shimmer
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-
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- Copyright 2013-2020 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 (
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installLib,
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parseLdd,
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glibcLibs,
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gconvLibs,
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inTop,
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) 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 Utility.Path.AbsRel
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import Utility.Split
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import Utility.FileSystemEncoding
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import Data.Maybe
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import System.FilePath
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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 $ fromRawFilePath $ parentDir $ toRawFilePath 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
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(parentDir (toRawFilePath f))
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(toRawFilePath l)
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target <- relPathDirToFile (toRawFilePath (takeDirectory f)) absl
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installfile top (fromRawFilePath absl)
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removeWhenExistsWith removeLink (top ++ f)
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createSymbolicLink (fromRawFilePath target) (inTop top f)
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checksymlink (fromRawFilePath 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.
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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) | egrep '\\.so' | grep -v /gconv/ | grep -v ld.so.conf | grep -v sotruss-lib"]
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{- Get gblibc's gconv libs, which are handled specially.. -}
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gconvLibs :: IO [FilePath]
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gconvLibs = lines <$> readProcess "sh"
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["-c", "dpkg -L libc6:$(dpkg --print-architecture) | grep /gconv/"]
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