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|
{- git-annex command
-
- Copyright 2010-2013 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 Config
import qualified Annex
import Logs.Location
import Annex.Content
import Annex.Content.Direct
import qualified Git.Command
import qualified Git.LsFiles as LsFiles
def :: [Command]
def = [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 $ ifM isDirect
( performDirect file key
, performIndirect file key)
performIndirect :: FilePath -> Key -> CommandPerform
performIndirect file key = do
liftIO $ removeFile file
-- git rm deletes empty directory without --cached
inRepo $ Git.Command.run [Params "rm --cached --force --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, to thinking that the
-- file has been unlocked and needs to be re-annexed.
(s, reap) <- inRepo $ LsFiles.staged [file]
when (not $ null s) $
inRepo $ Git.Command.run
[ Param "commit"
, Param "-q"
, Param "--no-verify"
, Param "-m", Param "content removed from git annex"
, Param "--", File file
]
void $ liftIO reap
next $ cleanupIndirect file key
cleanupIndirect :: FilePath -> Key -> CommandCleanup
cleanupIndirect file key = do
ifM (Annex.getState Annex.fast)
( goFast
, go
)
return True
where
#ifdef mingw32_HOST_OS
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
performDirect :: FilePath -> Key -> CommandPerform
performDirect file key = do
-- --force is needed when the file is not committed
inRepo $ Git.Command.run [Params "rm --cached --force --quiet --", File file]
next $ cleanupDirect file key
{- The direct mode file is not touched during unannex, so the content
- is already where it needs to be, so this does not need to do anything
- except remove it from the associated file map (which also updates
- the location log if this was the last copy), and, if this was the last
- associated file, remove the inode cache. -}
cleanupDirect :: FilePath -> Key -> CommandCleanup
cleanupDirect file key = do
fs <- removeAssociatedFile key file
when (null fs) $
removeInodeCache key
return True
|
