git-annex/Command/SetKey.hs
2019-01-14 13:17:47 -04:00

49 lines
1.2 KiB
Haskell

{- git-annex command
-
- Copyright 2010, 2015 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.SetKey where
import Command
import Logs.Location
import Annex.Content
cmd :: Command
cmd = command "setkey" SectionPlumbing "sets annexed content for a key"
(paramPair paramKey paramPath)
(withParams seek)
seek :: CmdParams -> CommandSeek
seek = withWords (commandAction . start)
start :: [String] -> CommandStart
start (keyname:file:[]) = do
showStart "setkey" file
next $ perform file (mkKey keyname)
start _ = giveup "specify a key and a content file"
mkKey :: String -> Key
mkKey = fromMaybe (giveup "bad key") . deserializeKey
perform :: FilePath -> Key -> CommandPerform
perform file key = do
-- the file might be on a different filesystem, so moveFile is used
-- rather than simply calling moveAnnex; disk space is also
-- checked this way.
ok <- getViaTmp RetrievalAllKeysSecure DefaultVerify key $ \dest -> unVerified $
if dest /= file
then liftIO $ catchBoolIO $ do
moveFile file dest
return True
else return True
if ok
then next $ cleanup key
else error "mv failed!"
cleanup :: Key -> CommandCleanup
cleanup key = do
logStatus key InfoPresent
return True