Re: git diff --submodule=diff and --stat/--dirstat/--name-only

[Philippe Blain <levraiphilippeblain@gmail.com>]

Hi Marc,

> Le 14 oct. 2020 à 06:14, Marc Sune <marcdevel@gmail.com> a écrit :
> 
> Hello all,
> 
> First, thank you to the community for the great work. Worth saying it
> from time to time, I think.
> 
> I am dealing with a couple of big repositories that use git
> submodules. They have nested submodules, and some of them are pretty
> huge. I came across:
> 
> git diff --submodule=diff
> 
> Which is very handy for creating some tooling, but it's obviously slow
> - in the order of tens of minutes in my case - for big diffs. I was
> only interested in the list files that changed, in this particular
> case, but:
> 
> git diff --stat --submodule=diff
> 
> doesn't seem to honour `--submodule=diff` and it doesn't go into the
> submodule(s) nor recurses, of course. Other options like `--dirstat`
> or `--name-only` seem to behave the same way.
> 
> I've tried this v2.20.1 and the HEAD of master (d4a392452e) with the
> same results. Is this a missing feature, a bug or is it just the
> intended behaviour?
> 
> Regards
> marc

This would indeed be useful. It's a missing feature, and so intended behaviour
for the moment, I would say. It was discussed recently on the list [1] :


[1] https://lore.kernel.org/git/20200924063829.GA1851751@coredump.intra.peff.net/t/#u

Cheers,

Philippe.