Migrate LinkTarget to PosixPath

Author: Bodigrim

Codec/Archive/Tar/LongNames.hs

@@ -75,10 +75,10 @@ encodeLinkPath
 encodeLinkPath lnk = case toTarPath' lnk of
   FileNameEmpty -> (Nothing, LinkTarget mempty)
   FileNameOK (TarPath name prefix)
-    | PS.null prefix -> (Nothing, LinkTarget $ posixToByteString name)
-    | otherwise -> (Just $ longSymLinkEntry lnk, LinkTarget $ posixToByteString name)
+    | PS.null prefix -> (Nothing, LinkTarget name)
+    | otherwise -> (Just $ longSymLinkEntry lnk, LinkTarget name)
   FileNameTooLong (TarPath name _) ->
-    (Just $ longSymLinkEntry lnk, LinkTarget $ posixToByteString name)
+    (Just $ longSymLinkEntry lnk, LinkTarget name)
 
 -- | Translate low-level entries (usually freshly deserialized) into
 -- high-level entries with POSIX 'FilePath's for files and symlinks

Codec/Archive/Tar/Read.hs

@@ -133,8 +133,8 @@ getEntryStreaming getN getAll = do
             entryContent     = case typecode of
                  '\0' -> NormalFile      content size
                  '0'  -> NormalFile      content size
-                 '1'  -> HardLink        (LinkTarget linkname)
-                 '2'  -> SymbolicLink    (LinkTarget linkname)
+                 '1'  -> HardLink        (LinkTarget $ byteToPosixString linkname)
+                 '2'  -> SymbolicLink    (LinkTarget $ byteToPosixString linkname)
                  _ | format == V7Format
                       -> OtherEntryType  typecode content size
                  '3'  -> CharacterDevice devmajor devminor

Codec/Archive/Tar/Types.hs

@@ -495,7 +495,7 @@ splitLongPath path = case reverse (FilePath.Posix.splitPath path) of
 -- | The tar format allows just 100 ASCII characters for the 'SymbolicLink' and
 -- 'HardLink' entry types.
 --
-newtype LinkTarget = LinkTarget BS.ByteString
+newtype LinkTarget = LinkTarget PosixString
   deriving (Eq, Ord, Show)
 
 instance NFData LinkTarget where
@@ -508,7 +508,7 @@ toLinkTarget :: FilePath -> Maybe LinkTarget
 toLinkTarget path
   | length path <= 100 = do
     target <- toLinkTarget' path
-    Just $! LinkTarget (packAscii target)
+    Just $! LinkTarget (toPosixString target)
   | otherwise = Nothing
 
 data LinkTargetException = IsAbsolute FilePath
@@ -532,16 +532,16 @@ toLinkTarget' path
 
 -- | Convert a tar 'LinkTarget' to a native 'FilePath'.
 fromLinkTarget :: LinkTarget -> FilePath
-fromLinkTarget (LinkTarget pathbs) = fromFilePathToNative $ BS.Char8.unpack pathbs
+fromLinkTarget (LinkTarget pathbs) = fromFilePathToNative $ fromPosixString pathbs
 
 -- | Convert a tar 'LinkTarget' to a Unix\/POSIX 'FilePath' (@\'/\'@ path separators).
 fromLinkTargetToPosixPath :: LinkTarget -> FilePath
-fromLinkTargetToPosixPath (LinkTarget pathbs) = BS.Char8.unpack pathbs
+fromLinkTargetToPosixPath (LinkTarget pathbs) = fromPosixString pathbs
 
 -- | Convert a tar 'LinkTarget' to a Windows 'FilePath' (@\'\\\\\'@ path separators).
 fromLinkTargetToWindowsPath :: LinkTarget -> FilePath
 fromLinkTargetToWindowsPath (LinkTarget pathbs) =
-  fromFilePathToWindowsPath $ BS.Char8.unpack pathbs
+  fromFilePathToWindowsPath $ fromPosixString pathbs
 
 -- | Convert a unix FilePath to a native 'FilePath'.
 fromFilePathToNative :: FilePath -> FilePath

Codec/Archive/Tar/Write.hs

@@ -87,7 +87,7 @@ putHeaderNoChkSum Entry {
     , putOct      12 modTime
     , replicate    8 ' ' -- dummy checksum
     , putChar8       typeCode
-    , putBString 100 linkTarget
+    , putPosixString 100 linkTarget
     ] ++
   case format of
   V7Format    ->