63 lines
1.5 KiB
Haskell
63 lines
1.5 KiB
Haskell
{- git-annex command
|
|
-
|
|
- Copyright 2011 Joey Hess <joey@kitenet.net>
|
|
-
|
|
- Licensed under the GNU GPL version 3 or higher.
|
|
-}
|
|
|
|
module Command.Reinject where
|
|
|
|
import Common.Annex
|
|
import Command
|
|
import Logs.Location
|
|
import Annex.Content
|
|
import qualified Command.Fsck
|
|
import qualified Backend
|
|
|
|
cmd :: [Command]
|
|
cmd = [command "reinject" (paramPair "SRC" "DEST") seek
|
|
SectionUtility "sets content of annexed file"]
|
|
|
|
seek :: CommandSeek
|
|
seek = withWords start
|
|
|
|
start :: [FilePath] -> CommandStart
|
|
start (src:dest:[])
|
|
| src == dest = stop
|
|
| otherwise =
|
|
ifAnnexed src
|
|
(error $ "cannot used annexed file as src: " ++ src)
|
|
go
|
|
where
|
|
go = do
|
|
showStart "reinject" dest
|
|
next $ whenAnnexed (perform src) dest
|
|
start _ = error "specify a src file and a dest file"
|
|
|
|
perform :: FilePath -> FilePath -> Key -> CommandPerform
|
|
perform src dest key = do
|
|
{- Check the content before accepting it. -}
|
|
v <- Backend.getBackend dest key
|
|
case v of
|
|
Nothing -> stop
|
|
Just backend ->
|
|
ifM (Command.Fsck.checkKeySizeOr reject key src
|
|
<&&> Command.Fsck.checkBackendOr reject backend key src)
|
|
( do
|
|
unlessM move $ error "mv failed!"
|
|
next $ cleanup key
|
|
, error "not reinjecting"
|
|
)
|
|
where
|
|
-- the file might be on a different filesystem,
|
|
-- so mv is used rather than simply calling
|
|
-- moveToObjectDir; disk space is also
|
|
-- checked this way.
|
|
move = getViaTmp key $ \tmp ->
|
|
liftIO $ boolSystem "mv" [File src, File tmp]
|
|
reject = const $ return "wrong file?"
|
|
|
|
cleanup :: Key -> CommandCleanup
|
|
cleanup key = do
|
|
logStatus key InfoPresent
|
|
return True
|