git-annex/Command/DropKey.hs
Joey Hess d13194b230
--branch, stage 2
Show branch:file that is being operated on.

I had to make ActionItem a type and not a type class because
withKeyOptions' passed two different types of values when using the type
class, and I could not get the type checker to accept that.
2016-07-20 15:23:43 -04:00

59 lines
1.4 KiB
Haskell

{- git-annex command
-
- Copyright 2010,2016 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.DropKey where
import Command
import qualified Annex
import Logs.Location
import Annex.Content
cmd :: Command
cmd = noCommit $ withGlobalOptions [jsonOption] $
command "dropkey" SectionPlumbing
"drops annexed content for specified keys"
(paramRepeating paramKey)
(seek <$$> optParser)
data DropKeyOptions = DropKeyOptions
{ toDrop :: [String]
, batchOption :: BatchMode
}
optParser :: CmdParamsDesc -> Parser DropKeyOptions
optParser desc = DropKeyOptions
<$> cmdParams desc
<*> parseBatchOption
seek :: DropKeyOptions -> CommandSeek
seek o = do
unlessM (Annex.getState Annex.force) $
error "dropkey can cause data loss; use --force if you're sure you want to do this"
withKeys start (toDrop o)
case batchOption o of
Batch -> batchInput parsekey $ batchCommandAction . start
NoBatch -> noop
where
parsekey = maybe (Left "bad key") Right . file2key
start :: Key -> CommandStart
start key = do
showStart' "dropkey" key (mkActionItem key)
next $ perform key
perform :: Key -> CommandPerform
perform key = ifM (inAnnex key)
( lockContentForRemoval key $ \contentlock -> do
removeAnnex contentlock
next $ cleanup key
, next $ return True
)
cleanup :: Key -> CommandCleanup
cleanup key = do
logStatus key InfoMissing
return True