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incremental checksum on download from ssh or p2p

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Checksum as content is received from a remote git-annex repository, rather
than doing it in a second pass.

Not tested at all yet, but I imagine it will work!

Not implemented for any special remotes, and also not implemented for
copies from local remotes. It may be that, for local remotes, it will
suffice to use rsync, rely on its checksumming, and simply return Verified.
(It would still make a checksumming pass when cp is used for COW, I guess.)
This commit is contained in:
Joey Hess 2021-02-09 17:03:27 -04:00
parent ed684f651e
commit 62e152f210
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17 changed files with 118 additions and 52 deletions
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3
Remote/Helper/Chunked/Legacy.hs
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@ -11,6 +11,7 @@ import Annex.Common
import Remote.Helper.Chunked
import Utility.Metered
import qualified Data.ByteString as S
import qualified Data.ByteString.Lazy as L
{- This is an extension that's added to the usual file (or whatever)
@ -117,4 +118,4 @@ meteredWriteFileChunks :: MeterUpdate -> FilePath -> [v] -> (v -> IO L.ByteStrin
meteredWriteFileChunks meterupdate dest chunks feeder =
withBinaryFile dest WriteMode $ \h ->
forM_ chunks $
meteredWrite meterupdate h <=< feeder
meteredWrite meterupdate (S.hPut h) <=< feeder