git-annex/Remote/Helper/Git.hs
Joey Hess 67e46229a5
change Remote.repo to Remote.getRepo
This is groundwork for letting a repo be instantiated the first time
it's actually used, instead of at startup.

The only behavior change is that some old special cases for xmpp remotes
were removed. Where before git-annex silently did nothing with those
no-longer supported remotes, it may now fail in some way.

The additional IO action should have no performance impact as long as
it's simply return.

This commit was sponsored by Boyd Stephen Smith Jr. on Patreon
2018-06-04 15:30:26 -04:00

49 lines
1.4 KiB
Haskell

{- Utilities for git remotes.
-
- Copyright 2011-2014 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Remote.Helper.Git where
import Annex.Common
import qualified Git
import Types.Availability
import qualified Types.Remote as Remote
import Data.Time.Clock.POSIX
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 :: Remote -> Annex [(String, String)]
gitRepoInfo r = do
d <- fromRepo Git.localGitDir
mtimes <- liftIO $ mapM (modificationTime <$$> getFileStatus)
=<< dirContentsRecursive (d </> "refs" </> "remotes" </> Remote.name r)
let lastsynctime = case mtimes of
[] -> "never"
_ -> show $ posixSecondsToUTCTime $ realToFrac $ maximum mtimes
repo <- Remote.getRepo r
return
[ ("repository location", Git.repoLocation repo)
, ("last synced", lastsynctime)
]