git-annex/Command/Version.hs
Joey Hess f97c783283 clean up check selection code
This new approach allows filtering out checks from the default set that are
not appropriate for a command, rather than having to list every check
that is appropriate. It also reduces some boilerplate.

Haskell does not define Eq for functions, so I had to go a long way around
with each check having a unique id. Meh.
2011-10-29 15:19:05 -04:00

32 lines
886 B
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Version where
import Common.Annex
import Command
import qualified Build.SysConfig as SysConfig
import Annex.Version
def :: [Command]
def = [dontCheck repoExists $
command "version" paramNothing seek "show version info"]
seek :: [CommandSeek]
seek = [withNothing start]
start :: CommandStart
start = do
liftIO $ putStrLn $ "git-annex version: " ++ SysConfig.packageversion
v <- getVersion
liftIO $ putStrLn $ "local repository version: " ++ fromMaybe "unknown" v
liftIO $ putStrLn $ "default repository version: " ++ defaultVersion
liftIO $ putStrLn $ "supported repository versions: " ++ vs supportedVersions
liftIO $ putStrLn $ "upgrade supported from repository versions: " ++ vs upgradableVersions
stop
where
vs = join " "