git-annex/Command/Unannex.hs
2013-05-11 23:54:25 -04:00

77 lines
1.9 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
module Command.Unannex where
import Common.Annex
import Command
import qualified Annex
import Logs.Location
import Annex.Content
import qualified Git.Command
import qualified Git.LsFiles as LsFiles
def :: [Command]
def = [notDirect $
command "unannex" paramPaths seek SectionUtility
"undo accidential add command"]
seek :: [CommandSeek]
seek = [withFilesInGit $ whenAnnexed start]
start :: FilePath -> (Key, Backend) -> CommandStart
start file (key, _) = stopUnless (inAnnex key) $ do
showStart "unannex" file
next $ perform file key
perform :: FilePath -> Key -> CommandPerform
perform file key = next $ cleanup file key
cleanup :: FilePath -> Key -> CommandCleanup
cleanup file key = do
liftIO $ removeFile file
-- git rm deletes empty directory without --cached
inRepo $ Git.Command.run [Params "rm --cached --quiet --", File file]
-- If the file was already committed, it is now staged for removal.
-- Commit that removal now, to avoid later confusing the
-- pre-commit hook if this file is later added back to
-- git as a normal, non-annexed file.
(s, clean) <- inRepo $ LsFiles.staged [file]
when (not $ null s) $ do
inRepo $ Git.Command.run
[ Param "commit"
, Param "-q"
, Param "-m", Param "content removed from git annex"
, Param "--", File file
]
void $ liftIO clean
ifM (Annex.getState Annex.fast)
( goFast
, go
)
return True
where
#ifdef __WINDOWS__
goFast = go
#else
goFast = do
-- fast mode: hard link to content in annex
src <- calcRepo $ gitAnnexLocation key
-- creating a hard link could fall; fall back to non fast mode
ifM (liftIO $ catchBoolIO $ createLink src file >> return True)
( thawContent file
, go
)
#endif
go = do
fromAnnex key file
logStatus key InfoMissing