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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
command :: [Command]
command = [repoCommand "initremote"
(paramPair paramName $
paramOptional $ paramRepeating paramKeyValue) seek
"sets up a special (non-git) remote"]
seek :: [CommandSeek]
seek = [withWords start]
start :: [String] -> CommandStart
start ws = do
when (null ws) needname
(u, c) <- findByName name
let fullconfig = config `M.union` c
t <- findType fullconfig
showStart "initremote" name
next $ perform t u $ M.union config c
where
name = head ws
config = Logs.Remote.keyValToConfig $ tail ws
needname = do
let err s = error $ "Specify a name for the remote. " ++ s
names <- remoteNames
if null names
then err ""
else err $ "Either a new name, or one of these existing special remotes: " ++ join " " names
perform :: R.RemoteType Annex -> UUID -> R.RemoteConfig -> CommandPerform
perform t u c = do
c' <- R.setup t u c
next $ cleanup u c'
cleanup :: UUID -> R.RemoteConfig -> CommandCleanup
cleanup u c = do
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 m = if null matches then Nothing else Just $ head matches
where
matches = filter (matching . snd) $ M.toList m
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 (R.RemoteType Annex)
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"
|
