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Re: What's cooking in git.git (Jul 2017, #01; Wed, 5)

Stefan Beller <sbeller@xxxxxxxxxx> writes:

> Speaking of submodules, It's not just features, but I also send bug fixes. ;)
> https://public-inbox.org/git/20170630003851.17288-1-sbeller@xxxxxxxxxx/
> (That patch is not related to this series, except for working in the submodule
> area, but I consider that patch more important than e.g. this series.)

I did not see the patch as fixing a bug, though.  

I do agree that overwriting the branch tips in the submodule
repositories, possibly rewinding and discarding user's work done on
the local branches, is indeed a problem.  It however is unclear why
detaching HEAD is a good solution to solve that problem.

After all, there must have been a reason why the user had checked
out a branch and had pointed it at a specific commit (presumably,
so that further work would be done while on the branch, to make it
easier and safer to eventually push the result back to the upstream
of the submodule's project).  So another solution that seems equally
viable, if not even more so, could be to fail the recursive checkout
saying why the checkout cannot be done, just like we fail a checkout
when a local change interferes with updating the contents in the
working tree and the index with an error message explaining which
paths are problematic.

I am *not* saying which one among the above two is better; I am not
even saying that there could be only these two possible solutions.
I just found the posted patch unsatisfactory because it did not make
it clear why the chosen solution is a good one.

Perhaps I misread the description; but that would mean the
description was prone to be misread and has room for improvement ;-)