git-annex/Remote/Helper/Git.hs
Joey Hess 4f1ba9a23d fix checkPresent error handling for non-present local git repos
guardUsable r (error "foo") *returned* an error, rather than throwing it
2014-08-08 19:18:08 -04:00

32 lines
905 B
Haskell

{- Utilities for git remotes.
-
- Copyright 2011-2014 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Remote.Helper.Git where
import Common.Annex
import qualified Git
import Types.Availability
repoCheap :: Git.Repo -> Bool
repoCheap = not . Git.repoIsUrl
localpathCalc :: Git.Repo -> Maybe FilePath
localpathCalc r
| availabilityCalc r == GloballyAvailable = Nothing
| otherwise = Just $ Git.repoPath r
availabilityCalc :: Git.Repo -> Availability
availabilityCalc r
| (Git.repoIsLocal r || Git.repoIsLocalUnknown r) = LocallyAvailable
| otherwise = GloballyAvailable
{- Avoids performing an action on a local repository that's not usable.
- Does not check that the repository is still available on disk. -}
guardUsable :: Git.Repo -> Annex a -> Annex a -> Annex a
guardUsable r fallback a
| Git.repoIsLocalUnknown r = fallback
| otherwise = a