git-annex/Command/SetKey.hs
Joey Hess 8ef2095fa0 factor out common imports
no code changes
2011-10-03 23:29:48 -04:00

47 lines
1 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.SetKey where
import AnnexCommon
import Command
import LocationLog
import Content
command :: [Command]
command = [repoCommand "setkey" paramPath seek
"sets annexed content for a key using a temp file"]
seek :: [CommandSeek]
seek = [withStrings start]
{- Sets cached content for a key. -}
start :: FilePath -> CommandStart
start file = do
showStart "setkey" file
next $ perform file
perform :: FilePath -> CommandPerform
perform file = do
key <- cmdlineKey
-- the file might be on a different filesystem, so mv is used
-- rather than simply calling moveToObjectDir; disk space is also
-- checked this way.
ok <- getViaTmp key $ \dest ->
if dest /= file
then liftIO $
boolSystem "mv" [File file, File dest]
else return True
if ok
then next cleanup
else error "mv failed!"
cleanup :: CommandCleanup
cleanup = do
key <- cmdlineKey
logStatus key InfoPresent
return True