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{- 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

gitRepoInfo :: Git.Repo -> [(String, String)]
gitRepoInfo r =
	[ ("repository location", Git.repoLocation r)
	]