unify exception handling into Utility.Exception
Removed old extensible-exceptions, only needed for very old ghc. Made webdav use Utility.Exception, to work after some changes in DAV's exception handling. Removed Annex.Exception. Mostly this was trivial, but note that tryAnnex is replaced with tryNonAsync and catchAnnex replaced with catchNonAsync. In theory that could be a behavior change, since the former caught all exceptions, and the latter don't catch async exceptions. However, in practice, nothing in the Annex monad uses async exceptions. Grepping for throwTo and killThread only find stuff in the assistant, which does not seem related. Command.Add.undo is changed to accept a SomeException, and things that use it for rollback now catch non-async exceptions, rather than only IOExceptions.
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@ -42,13 +42,11 @@ import Remote.Helper.Chunked as X
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import Remote.Helper.Encryptable as X
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import Remote.Helper.Messages
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import Annex.Content
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import Annex.Exception
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import qualified Git
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import qualified Git.Command
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import qualified Git.Construct
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import qualified Data.ByteString.Lazy as L
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import Control.Exception (bracket)
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import qualified Data.Map as M
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{- Special remotes don't have a configured url, so Git.Repo does not
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@ -174,7 +172,7 @@ specialRemote' cfg c preparestorer prepareretriever prepareremover preparecheckp
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cip = cipherKey c
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gpgopts = getGpgEncParams encr
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safely a = catchNonAsyncAnnex a (\e -> warning (show e) >> return False)
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safely a = catchNonAsync a (\e -> warning (show e) >> return False)
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-- chunk, then encrypt, then feed to the storer
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storeKeyGen k p enc = safely $ preparestorer k $ safely . go
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