103 lines
2.8 KiB
Haskell
103 lines
2.8 KiB
Haskell
{- git-annex command
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-
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- Copyright 2011,2013 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Command.InitRemote where
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import qualified Data.Map as M
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import Common.Annex
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import Command
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import qualified Remote
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import qualified Logs.Remote
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import qualified Types.Remote as R
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import Logs.UUID
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import Logs.Trust
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import Data.Ord
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cmd :: Command
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cmd = command "initremote" SectionSetup
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"creates a special (non-git) remote"
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(paramPair paramName $ paramOptional $ paramRepeating paramKeyValue)
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(withParams seek)
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seek :: CmdParams -> CommandSeek
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seek = withWords start
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start :: [String] -> CommandStart
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start [] = error "Specify a name for the remote."
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start (name:ws) = ifM (isJust <$> findExisting name)
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( error $ "There is already a special remote named \"" ++ name ++
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"\". (Use enableremote to enable an existing special remote.)"
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, do
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ifM (isJust <$> Remote.byNameOnly name)
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( error $ "There is already a remote named \"" ++ name ++ "\""
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, do
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let c = newConfig name
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t <- findType config
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showStart "initremote" name
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next $ perform t name $ M.union config c
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)
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)
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where
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config = Logs.Remote.keyValToConfig ws
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perform :: RemoteType -> String -> R.RemoteConfig -> CommandPerform
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perform t name c = do
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(c', u) <- R.setup t Nothing Nothing c
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next $ cleanup u name c'
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cleanup :: UUID -> String -> R.RemoteConfig -> CommandCleanup
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cleanup u name c = do
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describeUUID u name
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Logs.Remote.configSet u c
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return True
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{- See if there's an existing special remote with this name. -}
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findExisting :: String -> Annex (Maybe (UUID, R.RemoteConfig))
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findExisting name = do
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t <- trustMap
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matches <- sortBy (comparing $ \(u, _c) -> M.lookup u t )
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. findByName name
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<$> Logs.Remote.readRemoteLog
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return $ headMaybe matches
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newConfig :: String -> R.RemoteConfig
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newConfig = M.singleton nameKey
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findByName :: String -> M.Map UUID R.RemoteConfig -> [(UUID, R.RemoteConfig)]
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findByName n = filter (matching . snd) . M.toList
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where
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matching c = case M.lookup nameKey c of
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Nothing -> False
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Just n'
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| n' == n -> True
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| otherwise -> False
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remoteNames :: Annex [String]
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remoteNames = do
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m <- Logs.Remote.readRemoteLog
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return $ mapMaybe (M.lookup nameKey . snd) $ M.toList m
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{- find the specified remote type -}
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findType :: R.RemoteConfig -> Annex RemoteType
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findType config = maybe unspecified specified $ M.lookup typeKey config
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where
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unspecified = error "Specify the type of remote with type="
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specified s = case filter (findtype s) Remote.remoteTypes of
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[] -> error $ "Unknown remote type " ++ s
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(t:_) -> return t
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findtype s i = R.typename i == s
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{- The name of a configured remote is stored in its config using this key. -}
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nameKey :: String
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nameKey = "name"
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{- The type of a remote is stored in its config using this key. -}
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typeKey :: String
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typeKey = "type"
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