external special remotes mostly implemented (untested)
This has not been tested at all. It compiles! The only known missing things are support for encryption, and for get/set of special remote configuration, and of key state. (The latter needs separate work to add a new per-key log file to store that state.) Only thing I don't much like is that initremote needs to be passed both type=external and externaltype=foo. It would be better to have just type=foo Most of this is quite straightforward code, that largely wrote itself given the types. The only tricky parts were: * Need to lock the remote when using it to eg make a request, because in theory git-annex could have multiple threads that each try to use a remote at the same time. I don't think that git-annex ever does that currently, but better safe than sorry. * Rather than starting up every external special remote program when git-annex starts, they are started only on demand, when first used. This will avoid slowdown, especially when running fast git-annex query commands. Once started, they keep running until git-annex stops, currently, which may not be ideal, but it's hard to know a better time to stop them. * Bit of a chicken and egg problem with caching the cost of the remote, because setting annex-cost in the git config needs the remote to already be set up. Managed to finesse that. This commit was sponsored by Lukas Anzinger.
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@ -223,7 +223,7 @@ getRepositoriesReorderR = do
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rs <- catMaybes <$> mapM Remote.remoteFromUUID list
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forM_ (reorderCosts remote rs) $ \(r, newcost) ->
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when (Remote.cost r /= newcost) $
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setRemoteCost r newcost
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setRemoteCost (Remote.repo r) newcost
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void remoteListRefresh
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fromjs = toUUID . T.unpack
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