diff options
Diffstat (limited to 'src/Utility/Path.hs')
| -rw-r--r-- | src/Utility/Path.hs | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/Utility/Path.hs b/src/Utility/Path.hs index 2383ad06..0779d167 100644 --- a/src/Utility/Path.hs +++ b/src/Utility/Path.hs @@ -27,6 +27,7 @@ import Utility.Exception import Utility.Monad import Utility.UserInfo import Utility.Directory +import Utility.Split {- Simplifies a path, removing any "." component, collapsing "dir/..", - and removing the trailing path separator. @@ -75,11 +76,13 @@ parentDir = takeDirectory . dropTrailingPathSeparator upFrom :: FilePath -> Maybe FilePath upFrom dir | length dirs < 2 = Nothing - | otherwise = Just $ joinDrive drive $ joinPath $ init dirs + | otherwise = Just $ joinDrive drive $ intercalate s $ init dirs where - -- on Unix, the drive will be "/" when the dir is absolute, otherwise "" + -- on Unix, the drive will be "/" when the dir is absolute, + -- otherwise "" (drive, path) = splitDrive dir - dirs = filter (not . null) $ splitPath path + s = [pathSeparator] + dirs = filter (not . null) $ split s path prop_upFrom_basics :: FilePath -> Bool prop_upFrom_basics dir @@ -136,8 +139,9 @@ relPathDirToFileAbs from to | takeDrive from /= takeDrive to = to | otherwise = joinPath $ dotdots ++ uncommon where - pfrom = splitPath from - pto = splitPath to + pfrom = sp from + pto = sp to + sp = map dropTrailingPathSeparator . splitPath common = map fst $ takeWhile same $ zip pfrom pto same (c,d) = c == d uncommon = drop numcommon pto |