expose Control.Monad.join

I think I've been looking for that function for some time.
Ie, I remember wanting to collapse Just Nothing to Nothing.
This commit is contained in:
Joey Hess 2013-04-22 20:24:53 -04:00
parent 2a84deb271
commit 8a2d1988d3
19 changed files with 30 additions and 32 deletions

View file

@ -27,12 +27,10 @@ start = do
showPackageVersion
putStrLn $ "local repository version: " ++ fromMaybe "unknown" v
putStrLn $ "default repository version: " ++ defaultVersion
putStrLn $ "supported repository versions: " ++ vs supportedVersions
putStrLn $ "upgrade supported from repository versions: " ++ vs upgradableVersions
putStrLn $ "supported repository versions: " ++ unwords supportedVersions
putStrLn $ "upgrade supported from repository versions: " ++ unwords upgradableVersions
putStrLn $ "build flags: " ++ unwords buildFlags
stop
where
vs = join " "
showPackageVersion :: IO ()
showPackageVersion = putStrLn $ "git-annex version: " ++ SysConfig.packageversion