Re: [PATCH 0/7] In grep, no adding submodule ODB as alternates

On Tue, Aug 10, 2021 at 11:28:38AM -0700, Jonathan Tan wrote:

This patch series removes the need to add submodule ODBs as alternates
in all codepaths covered by t7814. I believe that that is also all the
codepaths covered by "git grep", but if it isn't, the uncovered
codepaths will still work - they will just not benefit from the
performance improvements.

In doing this work of migrating away from adding submodule ODBs as
alternates, I'm mainly motivated by the possibility of adding partial
clone submodule support, but this has benefits even for those who do not
use partial clones, as described in the documentation in patch 1.

To reviewers: you can cherry-pick the last patch onto one of the earlier
ones to observe what happens when the code still accesses a submodule
object as if it were in the_repository.

One note - I liked this tip, I think that is a useful thing for
reviewers to see. Thanks.

 - Emily