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|
{- git-annex command
-
- Copyright 2011 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.InitRemote where
import qualified Data.Map as M
import Common.Annex
import Command
import qualified Remote
import qualified Logs.Remote
import qualified Types.Remote as R
import Annex.UUID
import Logs.UUID
def :: [Command]
def = [command "initremote"
(paramPair paramName $ paramOptional $ paramRepeating paramKeyValue)
seek "sets up a special (non-git) remote"]
seek :: [CommandSeek]
seek = [withWords start]
start :: [String] -> CommandStart
start [] = do
names <- remoteNames
error $ "Specify a name for the remote. " ++
if null names
then ""
else "Either a new name, or one of these existing special remotes: " ++ join " " names
start (name:ws) = do
(u, c) <- findByName name
let fullconfig = config `M.union` c
t <- findType fullconfig
showStart "initremote" name
next $ perform t u name $ M.union config c
where
config = Logs.Remote.keyValToConfig ws
perform :: RemoteType -> UUID -> String -> R.RemoteConfig -> CommandPerform
perform t u name c = do
c' <- R.setup t u c
next $ cleanup u name c'
cleanup :: UUID -> String -> R.RemoteConfig -> CommandCleanup
cleanup u name c = do
describeUUID u name
Logs.Remote.configSet u c
return True
{- Look up existing remote's UUID and config by name, or generate a new one -}
findByName :: String -> Annex (UUID, R.RemoteConfig)
findByName name = do
m <- Logs.Remote.readRemoteLog
maybe generate return $ findByName' name m
where
generate = do
uuid <- liftIO genUUID
return (uuid, M.insert nameKey name M.empty)
findByName' :: String -> M.Map UUID R.RemoteConfig -> Maybe (UUID, R.RemoteConfig)
findByName' n = headMaybe . filter (matching . snd) . M.toList
where
matching c = case M.lookup nameKey c of
Nothing -> False
Just n'
| n' == n -> True
| otherwise -> False
remoteNames :: Annex [String]
remoteNames = do
m <- Logs.Remote.readRemoteLog
return $ mapMaybe (M.lookup nameKey . snd) $ M.toList m
{- find the specified remote type -}
findType :: R.RemoteConfig -> Annex RemoteType
findType config = maybe unspecified specified $ M.lookup typeKey config
where
unspecified = error "Specify the type of remote with type="
specified s = case filter (findtype s) Remote.remoteTypes of
[] -> error $ "Unknown remote type " ++ s
(t:_) -> return t
findtype s i = R.typename i == s
{- The name of a configured remote is stored in its config using this key. -}
nameKey :: String
nameKey = "name"
{- The type of a remote is stored in its config using this key. -}
typeKey :: String
typeKey = "type"
|
