git-annex/Command/InAnnex.hs
Joey Hess f97c783283 clean up check selection code
This new approach allows filtering out checks from the default set that are
not appropriate for a command, rather than having to list every check
that is appropriate. It also reduces some boilerplate.

Haskell does not define Eq for functions, so I had to go a long way around
with each check having a unique id. Meh.
2011-10-29 15:19:05 -04:00

26 lines
500 B
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.InAnnex where
import Common.Annex
import Command
import Annex.Content
def :: [Command]
def = [command "inannex" (paramRepeating paramKey) seek
"checks if keys are present in the annex"]
seek :: [CommandSeek]
seek = [withKeys start]
start :: Key -> CommandStart
start key = do
present <- inAnnex key
if present
then stop
else liftIO exitFailure