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From:   Erik Cervin Edin <erik@cervined.in>
Date:   Thu, 3 Nov 2022 14:02:28 +0100
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Subject: Re: Consist timestamps within a checkout/clone
To:     =?UTF-8?B?w4Z2YXIgQXJuZmrDtnLDsCBCamFybWFzb24=?= <avarab@gmail.com>
Cc:     Mark Hills <mark@xwax.org>, git@vger.kernel.org
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On Tue, Nov 1, 2022 at 4:53 PM Ævar Arnfjörð Bjarmason <avarab@gmail.com> wrote:
>
> I believe you might be trying to re-invent "make -B" :)

True, in the simple case, but if you
  git diff HEAD --name-only --diff-filter=AM | xargs touch
that should consolidate the modified times on disk of the files of that commit

It needs a bit more work, something like
  pre_checkout=$(git rev-parse HEAD)
  git checkout XYX &&
  git diff pre_checkout...XYZ --name-only --diff-filter=AM | xargs touch
but something like that can work around the inconsistent ordered
modified times after a checkout