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comment and update todo

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Joey Hess 2023-06-23 12:25:08 -04:00
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doc/design/external_special_remote_protocol/export_and_import_appendix/comment_2_6bea5a316df43a8306fb1cb19192db3f._comment Normal file
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[[!comment format=mdwn
username="joey"
subject="""comment 2"""
date="2023-06-23T16:07:39Z"
content="""
@mih it's still only a draft. See
[[todo/add_import_tree_to_external_special_remote_protocol]]
What I would like to do is work on implementing it in concert with someone
making a special remote that uses it, so we can find the pain points and
iterate a bit and hopefully improve it.
"""]]

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doc/todo/add_import_tree_to_external_special_remote_protocol.mdwn
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The external special remote protocol supports export tree, but not yet
import tree. There is a draft protocol extension.
import tree. There is a draft protocol extension in
[[design/external_special_remote_protocol/export_and_import_appendix]].
My main concern about this is, will external special remotes pick good
ContentIdentifiers and will they manage the race conditions documented in
[[import_tree]]? Mistakes in these things can result in data loss, and it's
ContentIdentifiers and will they implement STOREEXPORTEXPECTED
in a way that avoids race conditions (at least as well as git does)?
See [the original import tree todo for discussion about the race conditions](http://source.git-annex.branchable.com/?p=source.git;a=blob;f=doc/todo/import_tree.mdwn;hb=a9db0a505592bf7ee1db24c45b19ebbc96066a55).
Mistakes in these things can result in data loss, and it's
rather subtle stuff. --[[Joey]]
> It may be better to implement [[importtree_only_remotes]] and make