git-annex/Command/Dead.hs
Joey Hess 3a05d53761
add SeekInput (not yet used)
No behavior changes (hopefully), just adding SeekInput and plumbing it
through to the JSON display code for later use.

Over the course of 2 grueling days.

withFilesNotInGit reimplemented in terms of seekHelper
should be the only possible behavior change. It seems to test as
behaving the same.

Note that seekHelper dummies up the SeekInput in the case where
segmentPaths' gives up on sorting the expanded paths because there are
too many input paths. When SeekInput later gets exposed as a json field,
that will result in it being a little bit wrong in the case where
100 or more paths are passed to a git-annex command. I think this is a
subtle enough problem to not matter. If it does turn out to be a
problem, fixing it would require splitting up the input
parameters into groups of < 100, which would make git ls-files run
perhaps more than is necessary. May want to revisit this, because that
fix seems fairly low-impact.
2020-09-15 15:41:13 -04:00

43 lines
1.2 KiB
Haskell

{- git-annex command
-
- Copyright 2011, 2015 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Command.Dead where
import Command
import Types.TrustLevel
import Command.Trust (trustCommand)
import Logs.Location
import Remote (keyLocations)
import Git.Types
cmd :: Command
cmd = command "dead" SectionSetup "hide a lost repository or key"
(paramRepeating paramRemote) (seek <$$> optParser)
data DeadOptions = DeadRemotes [RemoteName] | DeadKeys [Key]
optParser :: CmdParamsDesc -> Parser DeadOptions
optParser desc = (DeadRemotes <$> cmdParams desc)
<|> (DeadKeys <$> many (option (str >>= parseKey)
( long "key" <> metavar paramKey
<> help "keys whose content has been irretrievably lost"
)))
seek :: DeadOptions -> CommandSeek
seek (DeadRemotes rs) = trustCommand "dead" DeadTrusted rs
seek (DeadKeys ks) = commandActions $ map startKey ks
startKey :: Key -> CommandStart
startKey key = starting "dead" (mkActionItem key) (SeekInput []) $
keyLocations key >>= \case
[] -> performKey key
_ -> giveup "This key is still known to be present in some locations; not marking as dead."
performKey :: Key -> CommandPerform
performKey key = do
setDead key
next $ return True