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Joey Hess 2021-08-16 17:29:39 -04:00
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doc/todo/OPT__58_____34__bundle__34___get_+_check___40__of_checksum__41___in_a_single_operation/comment_16_fbbcf1d8b35078274cfe322cea6de21c._comment
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@ -5,11 +5,24 @@
content="""
The concurrency problem is fixed now.
As well as the web special remote, these do not do incremental hashing
still: gitlfs, webdav, S3. Problem is, these open the file
for write. This prevents tailVerify re-opening it for read, because the
haskell RTS actually does not allowing opening a file for read that it has
open for write. This problem has already been fixed for directory.
Directory and webdav now also do incremental hashing.
The ones that do are: external, adb, gcrypt, hook, rsync, directory
There seems to have been a reversion in annex.verify handling;
I'm seeing directory do incremental hashing even when annex.verify is
false. Noticed while benchmarking it to see how much incremental hashing
sped it up. Seems that in Remote.Helper.Special, it uses
RemoteVerify baser, but when shouldVerify checks that value, it
sees that Types.Remote.isExportSupported is true. Despite the remote
not actually being an export remote. Because adjustExportImport gets
run after that point, I think..
As well as the web special remote, these do not do incremental hashing
still: gitlfs, S3. Problem is, these open the file
for write. That prevents tailVerify re-opening it for read, because the
haskell RTS actually does not allowing opening a file for read that it has
open for write. The new `fileRetriever\`` can be used instead to fix these,
but will take some more work.
Also, retrieval from export/import special remotes does not do incremental
hashing.
"""]]