b9184f69a7
Only reverse adjust the changes in the commit, which means that adjustments do not need to be generally cleanly reversable. For example, an adjustment can unlock all locked files, but does not need to worry about files that were originally unlocked when reversing, because it will only ever be run on files that have been changed. So, it's ok if it locks all files when reversed, or even leaves all files as-is when reversed.
77 lines
2.1 KiB
Haskell
77 lines
2.1 KiB
Haskell
{- git FilePath library
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-
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- Different git commands use different types of FilePaths to refer to
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- files in the repository. Some commands use paths relative to the
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- top of the repository even when run in a subdirectory. Adding some
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- types helps keep that straight.
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-
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- Copyright 2012-2013 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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{-# LANGUAGE CPP #-}
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module Git.FilePath (
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TopFilePath,
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getTopFilePath,
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fromTopFilePath,
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toTopFilePath,
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asTopFilePath,
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InternalGitPath,
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toInternalGitPath,
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fromInternalGitPath,
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absoluteGitPath
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) where
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import Common
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import Git
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import qualified System.FilePath.Posix
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{- A FilePath, relative to the top of the git repository. -}
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newtype TopFilePath = TopFilePath { getTopFilePath :: FilePath }
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deriving (Show, Eq, Ord)
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{- Path to a TopFilePath, within the provided git repo. -}
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fromTopFilePath :: TopFilePath -> Git.Repo -> FilePath
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fromTopFilePath p repo = combine (repoPath repo) (getTopFilePath p)
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{- The input FilePath can be absolute, or relative to the CWD. -}
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toTopFilePath :: FilePath -> Git.Repo -> IO TopFilePath
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toTopFilePath file repo = TopFilePath <$> relPathDirToFile (repoPath repo) file
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{- The input FilePath must already be relative to the top of the git
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- repository -}
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asTopFilePath :: FilePath -> TopFilePath
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asTopFilePath file = TopFilePath file
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{- Git may use a different representation of a path when storing
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- it internally.
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-
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- On Windows, git uses '/' to separate paths stored in the repository,
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- despite Windows using '\'.
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-
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-}
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type InternalGitPath = String
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toInternalGitPath :: FilePath -> InternalGitPath
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#ifndef mingw32_HOST_OS
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toInternalGitPath = id
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#else
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toInternalGitPath = replace "\\" "/"
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#endif
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fromInternalGitPath :: InternalGitPath -> FilePath
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#ifndef mingw32_HOST_OS
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fromInternalGitPath = id
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#else
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fromInternalGitPath = replace "/" "\\"
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#endif
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{- isAbsolute on Windows does not think "/foo" or "\foo" is absolute,
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- so try posix paths.
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-}
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absoluteGitPath :: FilePath -> Bool
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absoluteGitPath p = isAbsolute p ||
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System.FilePath.Posix.isAbsolute (toInternalGitPath p)
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