git-annex/Command/Reinject.hs
Joey Hess 8ab27235ea
reinject: Added new mode which can reinject known files into the annex.
For example: git-annex reinject --known /mnt/backup/*
2016-04-22 13:49:32 -04:00

85 lines
2 KiB
Haskell

{- git-annex command
-
- Copyright 2011-2016 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Reinject where
import Command
import Logs.Location
import Annex.Content
import Backend
import Types.KeySource
cmd :: Command
cmd = command "reinject" SectionUtility
"inject content of file back into annex"
(paramRepeating (paramPair "SRC" "DEST")
`paramOr` "--known " ++ paramRepeating "SRC")
(seek <$$> optParser)
data ReinjectOptions = ReinjectOptions
{ params :: CmdParams
, knownOpt :: Bool
}
optParser :: CmdParamsDesc -> Parser ReinjectOptions
optParser desc = ReinjectOptions
<$> cmdParams desc
<*> switch
( long "known"
<> help "inject all known files"
<> hidden
)
seek :: ReinjectOptions -> CommandSeek
seek os
| knownOpt os = withStrings startKnown (params os)
| otherwise = withWords startSrcDest (params os)
startSrcDest :: [FilePath] -> CommandStart
startSrcDest (src:dest:[])
| src == dest = stop
| otherwise = notAnnexed src $ do
showStart "reinject" dest
next $ ifAnnexed dest
(perform src)
stop
startSrcDest _ = error "specify a src file and a dest file"
startKnown :: FilePath -> CommandStart
startKnown src = notAnnexed src $ do
showStart "reinject" src
mkb <- genKey (KeySource src src Nothing) Nothing
case mkb of
Nothing -> error "Failed to generate key"
Just (key, _) -> ifM (isKnownKey key)
( next $ perform src key
, do
warning "Not known content; skipping"
next $ next $ return True
)
notAnnexed :: FilePath -> CommandStart -> CommandStart
notAnnexed src = ifAnnexed src (error $ "cannot used annexed file as src: " ++ src)
perform :: FilePath -> Key -> CommandPerform
perform src key = ifM move
( next $ cleanup key
, error "failed"
)
where
move = checkDiskSpaceToGet key False $
ifM (verifyKeyContent DefaultVerify UnVerified key src)
( do
moveAnnex key src
return True
, return False
)
cleanup :: Key -> CommandCleanup
cleanup key = do
logStatus key InfoPresent
return True