git-annex/Command/DropKey.hs
Joey Hess c3d40b9ec3
plumb in LiveUpdate (WIP)
Each command that first checks preferred content (and/or required
content) and then does something that can change the sizes of
repositories needs to call prepareLiveUpdate, and plumb it through the
preferred content check and the location log update.

So far, only Command.Drop is done. Many other commands that don't need
to do this have been updated to keep working.

There may be some calls to NoLiveUpdate in places where that should be
done. All will need to be double checked.

Not currently in a compilable state.
2024-08-23 16:35:12 -04:00

59 lines
1.5 KiB
Haskell

{- git-annex command
-
- Copyright 2010,2016 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Command.DropKey where
import Command
import qualified Annex
import Logs.Location
import Annex.Content
cmd :: Command
cmd = noCommit $ withAnnexOptions [jsonOptions] $
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 False
seek :: DropKeyOptions -> CommandSeek
seek o = do
unlessM (Annex.getRead Annex.force) $
giveup "dropkey can cause data loss; use --force if you're sure you want to do this"
case batchOption o of
NoBatch -> withKeys (commandAction . start) (toDrop o)
Batch fmt -> batchOnly Nothing (toDrop o) $
batchInput fmt (pure . parsekey) $
batchCommandAction . start
where
parsekey = maybe (Left "bad key") Right . deserializeKey
start :: (SeekInput, Key) -> CommandStart
start (si, key) = starting "dropkey" (mkActionItem key) si $
perform key
perform :: Key -> CommandPerform
perform key = ifM (inAnnex key)
( lockContentForRemoval key (next $ cleanup key) $ \contentlock -> do
removeAnnex contentlock
next $ cleanup key
, next $ return True
)
cleanup :: Key -> CommandCleanup
cleanup key = do
logStatus NoLiveUpdate key InfoMissing
return True