git-annex/Command/RmUrl.hs
Joey Hess 82d01f5619
rekey: Added --batch mode.
Would have liked to make the Parser parse the file and key pairs, but it
seems that optparse-applicative is unable to handle eg:

	many ((,) <$> argument <*> argument)

This commit was sponsored by Thomas Hochstein on Patreon.
2016-12-05 12:55:50 -04:00

53 lines
1.4 KiB
Haskell

{- git-annex command
-
- Copyright 2013-2016 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.RmUrl where
import Command
import Logs.Web
import qualified Remote
cmd :: Command
cmd = notBareRepo $
command "rmurl" SectionCommon
"record file is not available at url"
(paramRepeating (paramPair paramFile paramUrl))
(seek <$$> optParser)
data RmUrlOptions = RmUrlOptions
{ rmThese :: CmdParams
, batchOption :: BatchMode
}
optParser :: CmdParamsDesc -> Parser RmUrlOptions
optParser desc = RmUrlOptions
<$> cmdParams desc
<*> parseBatchOption
seek :: RmUrlOptions -> CommandSeek
seek o = case batchOption o of
Batch -> batchInput batchParser (batchCommandAction . start)
NoBatch -> withPairs start (rmThese o)
-- Split on the last space, since a FilePath can contain whitespace,
-- but a url should not.
batchParser :: String -> Either String (FilePath, URLString)
batchParser s = case separate (== ' ') (reverse s) of
(ru, rf)
| null ru || null rf -> Left "Expected: \"file url\""
| otherwise -> Right (reverse rf, reverse ru)
start :: (FilePath, URLString) -> CommandStart
start (file, url) = flip whenAnnexed file $ \_ key -> do
showStart "rmurl" file
next $ next $ cleanup url key
cleanup :: String -> Key -> CommandCleanup
cleanup url key = do
r <- Remote.claimingUrl url
setUrlMissing (Remote.uuid r) key (setDownloader' url r)
return True