git-annex/Command/RenameRemote.hs
Joey Hess e416635021
renameremote: Better handling of case where there are multiple special remotes with a name
Instead of renaming one at random, error out and ask that a uuid be
specified.

Sponsored-by: Brett Eisenberg on Patreon
2022-01-05 15:24:02 -04:00

58 lines
2 KiB
Haskell

{- git-annex command
-
- Copyright 2019-2021 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Command.RenameRemote where
import Command
import qualified Annex.SpecialRemote
import Annex.SpecialRemote.Config (nameField, sameasNameField)
import qualified Logs.Remote
import qualified Types.Remote as R
import qualified Remote
import Types.ProposedAccepted
import qualified Data.Map as M
cmd :: Command
cmd = command "renameremote" SectionSetup
"changes name of special remote"
(paramPair paramName paramName)
(withParams seek)
seek :: CmdParams -> CommandSeek
seek = withWords (commandAction . start)
start :: [String] -> CommandStart
start ps@(oldname:newname:[]) = Annex.SpecialRemote.findExisting oldname >>= \case
((u, cfg, mcu):[]) -> Annex.SpecialRemote.findExisting newname >>= \case
[] -> go u cfg mcu
_ -> giveup $ "The name " ++ newname ++ " is already used by a special remote."
-- Support lookup by uuid or description as well as remote name,
-- as a fallback when there is nothing with the name in the
-- special remote log.
[] -> Remote.nameToUUID' oldname >>= \case
Left e -> giveup e
Right u -> do
m <- Logs.Remote.remoteConfigMap
case M.lookup u m of
Nothing -> giveup "That is not a special remote."
Just cfg -> go u cfg Nothing
_ -> giveup $ "There are multiple special remotes named " ++ oldname ++ ". Provide instead the uuid or description of the remote to rename."
where
ai = ActionItemOther Nothing
si = SeekInput ps
go u cfg mcu = starting "rename" ai si $ perform u cfg mcu newname
start _ = giveup "Specify an old name (or uuid or description) and a new name."
perform :: UUID -> R.RemoteConfig -> Maybe (Annex.SpecialRemote.ConfigFrom UUID) -> String -> CommandPerform
perform u cfg mcu newname = do
let (namefield, cu) = case mcu of
Nothing -> (nameField, u)
Just (Annex.SpecialRemote.ConfigFrom u') -> (sameasNameField, u')
Logs.Remote.configSet cu (M.insert namefield (Proposed newname) cfg)
next $ return True