Re: [PATCH] gc --auto: release pack files before auto packing

[Duy Nguyen <pclouds@gmail.com>]

On Mon, Jul 9, 2018 at 11:10 PM Junio C Hamano <gitster@pobox.com> wrote:
>
> Duy Nguyen <pclouds@gmail.com> writes:
>
> > On Sun, Jul 8, 2018 at 1:16 AM Kim Gybels <kgybels@infogroep.be> wrote:
> >> Should I post a v3 that goes back to the original fix, but uses
> >> test_i18ngrep instead of grep?
> >
> > Yes please. In my comment I did write we didn't need the repo anymore
> > (or something along that line) which turns out to be wrong.
> >
> >> In addition to not breaking any tests, close_all_packs is already used
> >> in a similar way in am and fetch just before running "gc --auto".
> >>
> >> -Kim
>
> Sound good.
>
> I recall that "clear repo should treat the_repository special" was
> discussed when we saw the patch that became 74373b5f ("repository:
> fix free problem with repo_clear(the_repository)", 2018-05-10),
> instead of treating only the index portion specially.  Perhaps it
> was a more correct approach after all?

I think it's good that we have a way to "shut down the repo" when we
run an external command. But what we lack is "reinitialize the repo"
after the external command is done. We could treat the_repository
special in this case so shutting down does not require
reinitialization. Then repo_clear() should work well here. We could
also add a flag in repo_clear() to say "release all the resources you
are holding, but keep the repo settings/location..., we're not done
with this repo yet" then we don't need to re-initialize the repo
afterwards and still don't make the_repository so special.
-- 
Duy