git-annex/Annex/SpecialRemote.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

114 lines
3.6 KiB
Haskell

{- git-annex special remote configuration
-
- Copyright 2011-2021 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
{-# LANGUAGE OverloadedStrings #-}
module Annex.SpecialRemote (
module Annex.SpecialRemote,
module Annex.SpecialRemote.Config
) where
import Annex.Common
import Annex.SpecialRemote.Config
import Types.Remote (RemoteConfig, SetupStage(..), typename, setup)
import Types.GitConfig
import Types.ProposedAccepted
import Config
import Remote.List
import Logs.Remote
import Logs.Trust
import qualified Types.Remote as Remote
import Git.Types (RemoteName)
import qualified Data.Map as M
{- See if there's an existing special remote with this name.
-
- Remotes that are not dead come first in the list
- when a name appears multiple times. -}
findExisting :: RemoteName -> Annex [(UUID, RemoteConfig, Maybe (ConfigFrom UUID))]
findExisting name = do
(a, b) <- findExisting' name
return (a++b)
{- Dead remotes with the name are in the second list, all others in the
- first list. -}
findExisting' :: RemoteName -> Annex ([(UUID, RemoteConfig, Maybe (ConfigFrom UUID))], [(UUID, RemoteConfig, Maybe (ConfigFrom UUID))])
findExisting' name = do
t <- trustMap
partition (\(u, _, _) -> M.lookup u t /= Just DeadTrusted)
. findByRemoteConfig (\c -> lookupName c == Just name)
<$> Logs.Remote.remoteConfigMap
newConfig
:: RemoteName
-> Maybe (Sameas UUID)
-> RemoteConfig
-- ^ configuration provided by the user
-> M.Map UUID RemoteConfig
-- ^ configuration of other special remotes, to inherit from
-- when sameas is used
-> RemoteConfig
newConfig name sameas fromuser m = case sameas of
Nothing -> M.insert nameField (Proposed name) fromuser
Just (Sameas u) -> addSameasInherited m $ M.fromList
[ (sameasNameField, Proposed name)
, (sameasUUIDField, Proposed (fromUUID u))
] `M.union` fromuser
specialRemoteMap :: Annex (M.Map UUID RemoteName)
specialRemoteMap = do
m <- Logs.Remote.remoteConfigMap
return $ M.fromList $ mapMaybe go (M.toList m)
where
go (u, c) = case lookupName c of
Nothing -> Nothing
Just n -> Just (u, n)
{- find the remote type -}
findType :: RemoteConfig -> Either String RemoteType
findType config = maybe unspecified (specified . fromProposedAccepted) $
M.lookup typeField config
where
unspecified = Left "Specify the type of remote with type="
specified s = case filter (findtype s) remoteTypes of
[] -> Left $ "Unknown remote type " ++ s
++ " (pick from: "
++ intercalate " " (map typename remoteTypes)
++ ")"
(t:_) -> Right t
findtype s i = typename i == s
autoEnable :: Annex ()
autoEnable = do
remotemap <- M.filter configured <$> remoteConfigMap
enabled <- getenabledremotes
forM_ (M.toList remotemap) $ \(cu, c) -> unless (cu `M.member` enabled) $ do
let u = case findSameasUUID c of
Just (Sameas u') -> u'
Nothing -> cu
case (lookupName c, findType c) of
(Just name, Right t) -> whenM (canenable u) $ do
showSideAction $ "Auto enabling special remote " ++ name
dummycfg <- liftIO dummyRemoteGitConfig
tryNonAsync (setup t (AutoEnable c) (Just u) Nothing c dummycfg) >>= \case
Left e -> warning (show e)
Right (_c, _u) ->
when (cu /= u) $
setConfig (remoteAnnexConfig c "config-uuid") (fromUUID cu)
_ -> return ()
where
configured rc = fromMaybe False $
trueFalseParser' . fromProposedAccepted
=<< M.lookup autoEnableField rc
canenable u = (/= DeadTrusted) <$> lookupTrust u
getenabledremotes = M.fromList
. map (\r -> (getcu r, r))
<$> remoteList
getcu r = fromMaybe
(Remote.uuid r)
(remoteAnnexConfigUUID (Remote.gitconfig r))