git-annex/Command/Unannex.hs
Joey Hess f1b0a4b404 Use lower case hash directories for storing files on crippled filesystems, same as is already done for bare repositories.
* since this is a crippled filesystem anyway, git-annex doesn't use
  symlinks on it
* so there's no reason to use the mixed case hash directories that we're
  stuck using to avoid breaking everyone's symlinks to the content
* so we can do what is already done for all bare repos, and make non-bare
  repos on crippled filesystems use the all-lower case hash directories
* which are, happily, all 3 letters long, so they cannot conflict with
  mixed case hash directories
* so I was able to 100% fix this and even resuming `git annex add` in the
  test case will recover and it will all just work.
2013-04-04 15:46:33 -04:00

71 lines
1.8 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
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
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
)
go = do
fromAnnex key file
logStatus key InfoMissing