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authorGravatar Joey Hess <joeyh@joeyh.name>2015-01-06 15:31:24 -0400
committerGravatar Joey Hess <joeyh@joeyh.name>2015-01-06 16:19:41 -0400
commitc9f1281cdd937e9facd26741b3e42d60a9c5cf28 (patch)
treed93784c4a23a160d98fbfc40e69818c38ac06525 /Locations.hs
parent57c62d73082b6293a243f026003c697eda02b401 (diff)
Switch to using relative paths to the git repository.
This allows the git repository to be moved while git-annex is running in it, with fewer problems. On Windows, this avoids some of the problems with the absurdly small MAX_PATH of 260 bytes. In particular, git-annex repositories should work in deeper/longer directory structures than before. See http://git-annex.branchable.com/bugs/__34__git-annex:_direct:_1_failed__34___on_Windows/ There are several possible ways this change could break git-annex: 1. If it changes its working directory while it's running, that would be Bad News. Good news everyone! git-annex never does so. It would also break thread safety, so all such things were stomped out long ago. 2. parentDir "." -> "" which is not a valid path. I had to fix one instace of this, and I should probably wipe all calls to parentDir out of the git-annex code base; it was never a good idea. 3. Things like relPathDirToFile require absolute input paths, and code assumes that the git repo path is absolute and passes it to it as-is. In the case of relPathDirToFile, I converted it to not make this assumption. Currently, the test suite has 16 failures.
Diffstat (limited to 'Locations.hs')
-rw-r--r--Locations.hs8
1 files changed, 4 insertions, 4 deletions
diff --git a/Locations.hs b/Locations.hs
index bcf793bda..614cbdde3 100644
--- a/Locations.hs
+++ b/Locations.hs
@@ -87,8 +87,8 @@ import qualified Git
- Everything else should not end in a trailing path sepatator.
-
- Only functions (with names starting with "git") that build a path
- - based on a git repository should return an absolute path.
- - Everything else should use relative paths.
+ - based on a git repository should return full path relative to the git
+ - repository. Everything else returns path segments.
-}
{- The directory git annex uses for local state, relative to the .git
@@ -108,7 +108,7 @@ annexLocations key = map (annexLocation key) annexHashes
annexLocation :: Key -> Hasher -> FilePath
annexLocation key hasher = objectDir </> keyPath key hasher
-{- Annexed object's absolute location in a repository.
+{- Annexed object's location in a repository.
-
- When there are multiple possible locations, returns the one where the
- file is actually present.
@@ -146,7 +146,7 @@ gitAnnexLink file key r = do
currdir <- getCurrentDirectory
let absfile = fromMaybe whoops $ absNormPathUnix currdir file
loc <- gitAnnexLocation' key r False
- return $ relPathDirToFile (parentDir absfile) loc
+ relPathDirToFile (parentDir absfile) loc
where
whoops = error $ "unable to normalize " ++ file