checkpresentkey: New plumbing command to check if a key can be verified to be present on a remote.

This commit is contained in:
Joey Hess 2015-03-20 11:44:46 -04:00
parent 50ef4105e3
commit e6158130c6
4 changed files with 49 additions and 0 deletions

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{- git-annex command
-
- Copyright 2015 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.CheckPresentKey where
import Common.Annex
import Command
import Types.Key
import qualified Remote
import Annex
import Types.Messages
cmd :: [Command]
cmd = [noCommit $ command "checkpresentkey" (paramPair paramKey paramRemote) seek
SectionPlumbing "check if key is present in remote"]
seek :: CommandSeek
seek = withWords start
start :: [String] -> CommandStart
start (ks:rn:[]) = do
setOutput QuietOutput
maybe (error "Unknown remote") (go <=< flip Remote.hasKey k)
=<< Remote.byNameWithUUID (Just rn)
where
k = fromMaybe (error "bad key") (file2key ks)
go (Right True) = liftIO exitSuccess
go (Right False) = liftIO exitFailure
go (Left e) = liftIO $ do
hPutStrLn stderr e
exitWith $ ExitFailure 100
start _ = error "Wrong number of parameters"