git-annex/Command/DropKey.hs
Joey Hess b223988e22
remove --backend from global options
--backend is no longer a global option, and is only accepted by commands
that actually need it.

Three commands that used to support backend but don't any longer are
watch, webapp, and assistant. It would be possible to make them support it,
but I doubt anyone used the option with these. And in the case of webapp
and assistant, the option was handled inconsistently, only taking affect
when the command is run with an existing git-annex repo, not when it
creates a new one.

Also, renamed GlobalOption etc to AnnexOption. Because there are many
options of this type that are not actually global (any more) and get
added to commands that need them.

Sponsored-by: Kevin Mueller on Patreon
2022-06-29 13:33:25 -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 key InfoMissing
return True