git-annex/Command/ReadPresentKey.hs

30 lines
694 B
Haskell

{- git-annex command
-
- Copyright 2015 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.ReadPresentKey where
import Common.Annex
import Command
import Logs.Location
import Types.Key
cmd :: [Command]
cmd = [noCommit $ command "readpresentkey" (paramPair paramKey paramUUID) seek
SectionPlumbing "read records of where key is present"]
seek :: CommandSeek
seek = withWords start
start :: [String] -> CommandStart
start (ks:us:[]) = do
ls <- loggedLocations k
if toUUID us `elem` ls
then liftIO exitSuccess
else liftIO exitFailure
where
k = fromMaybe (error "bad key") (file2key ks)
start _ = error "Wrong number of parameters"