partially complete gcrypt remote (local send done; rest not)
This is a git-remote-gcrypt encrypted special remote. Only sending files in to the remote works, and only for local repositories. Most of the work so far has involved making initremote work. A particular problem is that remote setup in this case needs to generate its own uuid, derivied from the gcrypt-id. That required some larger changes in the code to support. For ssh remotes, this will probably just reuse Remote.Rsync's code, so should be easy enough. And for downloading from a web remote, I will need to factor out the part of Remote.Git that does that. One particular thing that will need work is supporting hot-swapping a local gcrypt remote. I think it needs to store the gcrypt-id in the git config of the local remote, so that it can check it every time, and compare with the cached annex-uuid for the remote. If there is a mismatch, it can change both the cached annex-uuid and the gcrypt-id. That should work, and I laid some groundwork for it by already reading the remote's config when it's local. (Also needed for other reasons.) This commit was sponsored by Daniel Callahan.
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Remote/Helper/Git.hs
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Remote/Helper/Git.hs
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{- Utilities for git remotes.
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-
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- Copyright 2011-2012 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Remote.Helper.Git where
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import Common.Annex
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import qualified Git
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repoCheap :: Git.Repo -> Bool
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repoCheap = not . Git.repoIsUrl
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localpathCalc :: Git.Repo -> Maybe FilePath
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localpathCalc r = if globallyAvailableCalc r
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then Nothing
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else Just $ Git.repoPath r
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globallyAvailableCalc :: Git.Repo -> Bool
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globallyAvailableCalc r = not $
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Git.repoIsLocal r || Git.repoIsLocalUnknown r
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{- Avoids performing an action on a local repository that's not usable.
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- Does not check that the repository is still available on disk. -}
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guardUsable :: Git.Repo -> a -> Annex a -> Annex a
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guardUsable r onerr a
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| Git.repoIsLocalUnknown r = return onerr
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| otherwise = a
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