git-annex/Command/EnableRemote.hs
Joey Hess 28e2cad849
implement exporttree=yes configuration
* Only export to remotes that were initialized to support it.
* Prevent storing key/value on export remotes.
* Prevent enabling exporttree=yes and encryption in the same remote.

SetupStage Enable was changed to take the old RemoteConfig.
This allowed only setting exporttree when initially setting up a
remote, and not configuring it later after stuff might already be stored
in the remote.

Went with =yes rather than =true for consistency with other parts of
git-annex. Changed docs accordingly.

This commit was supported by the NSF-funded DataLad project.
2017-09-04 13:09:38 -04:00

118 lines
3.9 KiB
Haskell

{- git-annex command
-
- Copyright 2013-2016 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.EnableRemote where
import Command
import qualified Annex
import qualified Logs.Remote
import qualified Types.Remote as R
import qualified Git
import qualified Git.Types as Git
import qualified Annex.SpecialRemote
import qualified Remote
import qualified Types.Remote as Remote
import qualified Remote.Git
import Logs.UUID
import Annex.UUID
import Config
import Config.DynamicConfig
import Types.GitConfig
import qualified Data.Map as M
cmd :: Command
cmd = command "enableremote" SectionSetup
"enables git-annex to use a remote"
(paramPair paramName $ paramOptional $ paramRepeating paramKeyValue)
(withParams seek)
seek :: CmdParams -> CommandSeek
seek = withWords start
start :: [String] -> CommandStart
start [] = unknownNameError "Specify the remote to enable."
start (name:rest) = go =<< filter matchingname <$> Annex.fromRepo Git.remotes
where
matchingname r = Git.remoteName r == Just name
go [] = startSpecialRemote name (Logs.Remote.keyValToConfig rest)
=<< Annex.SpecialRemote.findExisting name
go (r:_) = do
-- This could be either a normal git remote or a special
-- remote that has an url (eg gcrypt).
rs <- Remote.remoteList
case filter (\rmt -> Remote.name rmt == name) rs of
(rmt:_) | Remote.remotetype rmt == Remote.Git.remote ->
startNormalRemote name rest r
_ -> go []
-- Normal git remotes are special-cased; enableremote retries probing
-- the remote uuid.
startNormalRemote :: Git.RemoteName -> [String] -> Git.Repo -> CommandStart
startNormalRemote name restparams r
| null restparams = do
showStart "enableremote" name
next $ next $ do
setRemoteIgnore r False
r' <- Remote.Git.configRead False r
u <- getRepoUUID r'
return $ u /= NoUUID
| otherwise = giveup $
"That is a normal git remote; passing these parameters does not make sense: " ++ unwords restparams
startSpecialRemote :: Git.RemoteName -> Remote.RemoteConfig -> Maybe (UUID, Remote.RemoteConfig) -> CommandStart
startSpecialRemote name config Nothing = do
m <- Annex.SpecialRemote.specialRemoteMap
confm <- Logs.Remote.readRemoteLog
v <- Remote.nameToUUID' name
case v of
Right u | u `M.member` m ->
startSpecialRemote name config $
Just (u, fromMaybe M.empty (M.lookup u confm))
_ -> unknownNameError "Unknown remote name."
startSpecialRemote name config (Just (u, c)) = do
let fullconfig = config `M.union` c
t <- either giveup return (Annex.SpecialRemote.findType fullconfig)
showStart "enableremote" name
gc <- maybe (liftIO dummyRemoteGitConfig)
(return . Remote.gitconfig)
=<< Remote.byUUID u
next $ performSpecialRemote t u c fullconfig gc
performSpecialRemote :: RemoteType -> UUID -> R.RemoteConfig -> R.RemoteConfig -> RemoteGitConfig -> CommandPerform
performSpecialRemote t u oldc c gc = do
(c', u') <- R.setup t (R.Enable oldc) (Just u) Nothing c gc
next $ cleanupSpecialRemote u' c'
cleanupSpecialRemote :: UUID -> R.RemoteConfig -> CommandCleanup
cleanupSpecialRemote u c = do
Logs.Remote.configSet u c
mr <- Remote.byUUID u
case mr of
Nothing -> noop
Just r -> setRemoteIgnore (R.repo r) False
return True
unknownNameError :: String -> Annex a
unknownNameError prefix = do
m <- Annex.SpecialRemote.specialRemoteMap
descm <- M.unionWith Remote.addName <$> uuidMap <*> pure m
specialmsg <- if M.null m
then pure "(No special remotes are currently known; perhaps use initremote instead?)"
else Remote.prettyPrintUUIDsDescs
"known special remotes"
descm (M.keys m)
disabledremotes <- filterM isdisabled =<< Annex.fromRepo Git.remotes
let remotesmsg = unlines $ map ("\t" ++) $
mapMaybe Git.remoteName disabledremotes
giveup $ concat $ filter (not . null) [prefix ++ "\n", remotesmsg, specialmsg]
where
isdisabled r = anyM id
[ (==) NoUUID <$> getRepoUUID r
, liftIO . getDynamicConfig . remoteAnnexIgnore
=<< Annex.getRemoteGitConfig r
]