66 lines
1.6 KiB
Haskell
66 lines
1.6 KiB
Haskell
{- git-annex command
|
|
-
|
|
- Copyright 2010 Joey Hess <id@joeyh.name>
|
|
-
|
|
- Licensed under the GNU GPL version 3 or higher.
|
|
-}
|
|
|
|
module Command.Unlock where
|
|
|
|
import Common.Annex
|
|
import Command
|
|
import Annex.Content
|
|
import Annex.CatFile
|
|
import Utility.CopyFile
|
|
|
|
cmd :: [Command]
|
|
cmd =
|
|
[ c "unlock" "unlock files for modification"
|
|
, c "edit" "same as unlock"
|
|
]
|
|
where
|
|
c n = notDirect . withOptions annexedMatchingOptions
|
|
. command n paramPaths seek SectionCommon
|
|
|
|
seek :: CommandSeek
|
|
seek = withFilesInGit $ whenAnnexed start
|
|
|
|
{- The unlock subcommand replaces the symlink with a copy of the file's
|
|
- content. -}
|
|
start :: FilePath -> Key -> CommandStart
|
|
start file key = do
|
|
showStart "unlock" file
|
|
ifM (inAnnex key)
|
|
( ifM (isJust <$> catKeyFileHEAD file)
|
|
( next $ perform file key
|
|
, do
|
|
warning "this has not yet been committed to git; cannot unlock it"
|
|
next $ next $ return False
|
|
)
|
|
, do
|
|
warning "content not present; cannot unlock"
|
|
next $ next $ return False
|
|
)
|
|
|
|
perform :: FilePath -> Key -> CommandPerform
|
|
perform dest key = ifM (checkDiskSpace Nothing key 0)
|
|
( do
|
|
src <- calcRepo $ gitAnnexLocation key
|
|
tmpdest <- fromRepo $ gitAnnexTmpObjectLocation key
|
|
liftIO $ createDirectoryIfMissing True (parentDir tmpdest)
|
|
showAction "copying"
|
|
ifM (liftIO $ copyFileExternal CopyAllMetaData src tmpdest)
|
|
( do
|
|
liftIO $ do
|
|
removeFile dest
|
|
moveFile tmpdest dest
|
|
thawContent dest
|
|
next $ return True
|
|
, do
|
|
warning "copy failed!"
|
|
next $ return False
|
|
)
|
|
, do
|
|
warning "not enough disk space to copy file"
|
|
next $ return False
|
|
)
|