diff options
author | 2013-04-04 15:46:33 -0400 | |
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committer | 2013-04-04 15:46:33 -0400 | |
commit | a7cc06b30d3ae8a9801a68729db23dd66f8dadf6 (patch) | |
tree | b500f785b37815cf82d82da299881e07931ab27c /Locations.hs | |
parent | 307212395c912ab268109521ceae1bf192f728d8 (diff) |
Use lower case hash directories for storing files on crippled filesystems, same as is already done for bare repositories.
* since this is a crippled filesystem anyway, git-annex doesn't use
symlinks on it
* so there's no reason to use the mixed case hash directories that we're
stuck using to avoid breaking everyone's symlinks to the content
* so we can do what is already done for all bare repos, and make non-bare
repos on crippled filesystems use the all-lower case hash directories
* which are, happily, all 3 letters long, so they cannot conflict with
mixed case hash directories
* so I was able to 100% fix this and even resuming `git annex add` in the
test case will recover and it will all just work.
Diffstat (limited to 'Locations.hs')
-rw-r--r-- | Locations.hs | 50 |
1 files changed, 33 insertions, 17 deletions
diff --git a/Locations.hs b/Locations.hs index 1415adbca..cb98b840c 100644 --- a/Locations.hs +++ b/Locations.hs @@ -11,6 +11,7 @@ module Locations ( keyPaths, keyPath, gitAnnexLocation, + gitAnnexLink, gitAnnexMapping, gitAnnexInodeCache, gitAnnexInodeSentinal, @@ -88,7 +89,7 @@ annexLocations key = map (annexLocation key) annexHashes annexLocation :: Key -> Hasher -> FilePath annexLocation key hasher = objectDir </> keyPath key hasher -{- Annexed file's absolute location in a repository. +{- Annexed object's absolute location in a repository. - - When there are multiple possible locations, returns the one where the - file is actually present. @@ -99,35 +100,50 @@ annexLocation key hasher = objectDir </> keyPath key hasher - This does not take direct mode into account, so in direct mode it is not - the actual location of the file's content. -} -gitAnnexLocation :: Key -> Git.Repo -> IO FilePath -gitAnnexLocation key r - | Git.repoIsLocalBare r = - {- Bare repositories default to hashDirLower for new - - content, as it's more portable. -} +gitAnnexLocation :: Key -> Git.Repo -> GitConfig -> IO FilePath +gitAnnexLocation key r config = gitAnnexLocation' key r (annexCrippledFileSystem config) +gitAnnexLocation' :: Key -> Git.Repo -> Bool -> IO FilePath +gitAnnexLocation' key r crippled + {- Bare repositories default to hashDirLower for new + - content, as it's more portable. + - + - Repositories on filesystems that are crippled also use + - hashDirLower, since they do not use symlinks and it's + - more portable. -} + | Git.repoIsLocalBare r || crippled = check $ map inrepo $ annexLocations key - | otherwise = - {- Non-bare repositories only use hashDirMixed, so - - don't need to do any work to check if the file is - - present. -} - return $ inrepo $ annexLocation key hashDirMixed + {- Non-bare repositories only use hashDirMixed, so + - don't need to do any work to check if the file is + - present. -} + | otherwise = return $ inrepo $ annexLocation key hashDirMixed where inrepo d = Git.localGitDir r </> d check locs@(l:_) = fromMaybe l <$> firstM doesFileExist locs check [] = error "internal" +{- Calculates a symlink to link a file to an annexed object. -} +gitAnnexLink :: FilePath -> Key -> Git.Repo -> IO FilePath +gitAnnexLink file key r = do + cwd <- getCurrentDirectory + let absfile = fromMaybe whoops $ absNormPath cwd file + loc <- gitAnnexLocation' key r False + return $ relPathDirToFile (parentDir absfile) loc + where + whoops = error $ "unable to normalize " ++ file + {- File that maps from a key to the file(s) in the git repository. - Used in direct mode. -} -gitAnnexMapping :: Key -> Git.Repo -> IO FilePath -gitAnnexMapping key r = do - loc <- gitAnnexLocation key r +gitAnnexMapping :: Key -> Git.Repo -> GitConfig -> IO FilePath +gitAnnexMapping key r config = do + loc <- gitAnnexLocation key r config return $ loc ++ ".map" {- File that caches information about a key's content, used to determine - if a file has changed. - Used in direct mode. -} -gitAnnexInodeCache :: Key -> Git.Repo -> IO FilePath -gitAnnexInodeCache key r = do - loc <- gitAnnexLocation key r +gitAnnexInodeCache :: Key -> Git.Repo -> GitConfig -> IO FilePath +gitAnnexInodeCache key r config = do + loc <- gitAnnexLocation key r config return $ loc ++ ".cache" gitAnnexInodeSentinal :: Git.Repo -> FilePath |