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{- git FilePath library
-
- Different git commands use different types of FilePaths to refer to
- files in the repository. Some commands use paths relative to the
- top of the repository even when run in a subdirectory. Adding some
- types helps keep that straight.
-
- Copyright 2012-2013 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
module Git.FilePath (
TopFilePath,
fromTopFilePath,
getTopFilePath,
toTopFilePath,
asTopFilePath,
InternalGitPath,
toInternalGitPath,
fromInternalGitPath
) where
import Common
import Git
{- A FilePath, relative to the top of the git repository. -}
newtype TopFilePath = TopFilePath { getTopFilePath :: FilePath }
deriving (Show)
{- Returns an absolute FilePath. -}
fromTopFilePath :: TopFilePath -> Git.Repo -> FilePath
fromTopFilePath p repo = absPathFrom (repoPath repo) (getTopFilePath p)
{- The input FilePath can be absolute, or relative to the CWD. -}
toTopFilePath :: FilePath -> Git.Repo -> IO TopFilePath
toTopFilePath file repo = TopFilePath <$>
relPathDirToFile (repoPath repo) <$> absPath file
{- The input FilePath must already be relative to the top of the git
- repository -}
asTopFilePath :: FilePath -> TopFilePath
asTopFilePath file = TopFilePath file
{- Git may use a different representation of a path when storing
- it internally. For example, on Windows, git uses '/' to separate paths
- stored in the repository, despite Windows using '\' -}
type InternalGitPath = String
toInternalGitPath :: FilePath -> InternalGitPath
#ifndef mingw32_HOST_OS
toInternalGitPath = id
#else
toInternalGitPath = replace "\\" "/"
#endif
fromInternalGitPath :: InternalGitPath -> FilePath
#ifndef mingw32_HOST_OS
fromInternalGitPath = id
#else
fromInternalGitPath = replace "/" "\\"
#endif
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