git-annex/Command/PreCommit.hs
Joey Hess cbaebf538a rework git check-attr interface
Now gitattributes are looked up, efficiently, in only the places that
really need them, using the same approach used for cat-file.

The old CheckAttr code seemed very fragile, in the way it streamed files
through git check-attr.
I actually found that cad8824852
was still deadlocking with ghc 7.4, at the end of adding a lot of files.
This should fix that problem, and avoid future ones.

The best part is that this removes withAttrFilesInGit and withNumCopies,
which were complicated Seek methods, as well as simplfying the types
for several other Seek methods that had a Backend tupled in.
2012-02-13 23:52:21 -04:00

32 lines
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Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.PreCommit where
import Command
import qualified Command.Add
import qualified Command.Fix
def :: [Command]
def = [command "pre-commit" paramPaths seek "run by git pre-commit hook"]
{- The pre-commit hook needs to fix symlinks to all files being committed.
- And, it needs to inject unlocked files into the annex. -}
seek :: [CommandSeek]
seek =
[ withFilesToBeCommitted $ whenAnnexed Command.Fix.start
, withFilesUnlockedToBeCommitted start]
start :: FilePath -> CommandStart
start file = next $ perform file
perform :: FilePath -> CommandPerform
perform file = do
ok <- doCommand $ Command.Add.start file
if ok
then next $ return True
else error $ "failed to add " ++ file ++ "; canceling commit"