git-annex/Command/Init.hs
Joey Hess 9f87133bf5
snap --version= to auto-upgrade
This makes --version=6 still work, despite v6 not being in
supportedVersions. Which is useful for scripts that use it.

I didn't document it on the man page, because it's indistinguishable
from an automatic upgrade after initting as v6.
2018-10-26 11:44:05 -04:00

59 lines
1.5 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Init where
import Command
import Annex.Init
import Annex.Version
import Types.RepoVersion
import qualified Annex.SpecialRemote
import qualified Data.Map as M
cmd :: Command
cmd = dontCheck repoExists $
command "init" SectionSetup "initialize git-annex"
paramDesc (seek <$$> optParser)
data InitOptions = InitOptions
{ initDesc :: String
, initVersion :: Maybe RepoVersion
}
optParser :: CmdParamsDesc -> Parser InitOptions
optParser desc = InitOptions
<$> (unwords <$> cmdParams desc)
<*> optional (option (str >>= parseRepoVersion)
( long "version" <> metavar paramValue
<> help "Override default annex.version"
))
parseRepoVersion :: Monad m => String -> m RepoVersion
parseRepoVersion s = case RepoVersion <$> readish s of
Nothing -> fail $ "version parse error"
Just v
| v `elem` supportedVersions -> return v
| otherwise -> case M.lookup v autoUpgradeableVersions of
Just v' -> return v'
Nothing -> fail $ s ++ " is not a currently supported repository version"
seek :: InitOptions -> CommandSeek
seek = commandAction . start
start :: InitOptions -> CommandStart
start os = do
showStart' "init" (Just $ initDesc os)
next $ perform os
perform :: InitOptions -> CommandPerform
perform os = do
initialize (AutoInit False)
(if null (initDesc os) then Nothing else Just (initDesc os))
(initVersion os)
Annex.SpecialRemote.autoEnable
next $ return True