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{-
Copyright (C) 2022 Yuchen Pei.
This file is part of f2md.
f2md is free software: you can redistribute it and/or modify it under
the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
f2md is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General
Public License for more details.
You should have received a copy of the GNU Affero General Public
License along with f2md. If not, see <https://www.gnu.org/licenses/>.
-}
module F2Md.Utils (expandPath) where
import System.Directory
import System.Posix.User
expandPath :: FilePath -> IO FilePath
expandPath path =
let (pre, post) = break (=='/') path in
case pre of
"~" -> (++ post) <$> getHomeDirectory
'~' : user -> (++ post) <$> homeDirectory <$> getUserEntryForName user
_ -> return path
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