git-annex/Command/Unlock.hs
Joey Hess b4a5e39ee6 Support git's core.sharedRepository configuration
This is incomplete, it does not honor it yet for hash directories
and other annex bookkeeping files. Some of that is not needed for a bare
repo; some of it may be.
2012-04-21 15:36:52 -04:00

51 lines
1.2 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Unlock where
import Common.Annex
import Command
import Annex.Content
import Utility.CopyFile
import Utility.FileMode
def :: [Command]
def =
[ c "unlock" "unlock files for modification"
, c "edit" "same as unlock"
]
where
c n = command n paramPaths seek
seek :: [CommandSeek]
seek = [withFilesInGit $ whenAnnexed start]
{- The unlock subcommand replaces the symlink with a copy of the file's
- content. -}
start :: FilePath -> (Key, Backend) -> CommandStart
start file (key, _) = do
showStart "unlock" file
next $ perform file key
perform :: FilePath -> Key -> CommandPerform
perform dest key = do
unlessM (inAnnex key) $ error "content not present"
unlessM (checkDiskSpace Nothing key 0) $ error "cannot unlock"
src <- inRepo $ gitAnnexLocation key
tmpdest <- fromRepo $ gitAnnexTmpLocation key
liftIO $ createDirectoryIfMissing True (parentDir tmpdest)
showAction "copying"
ok <- liftIO $ copyFileExternal src tmpdest
if ok
then do
liftIO $ do
removeFile dest
moveFile tmpdest dest
thawContent dest
next $ return True
else error "copy failed!"