Re: [PATCH] ci: run `make sparse` as a GitHub workflow

[Junio C Hamano <gitster@pobox.com>]

Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:

> Hi Junio,
>
> On Wed, 14 Jul 2021, Junio C Hamano wrote:
>
>> Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:
>>
>> > Which means that the likelihood of a run to fail increases with the number
>> > of jobs in said run (even innocuous problems such as transient failures to
>> > download an Ubuntu package), and it also makes it much more painful to
>> > re-run the entire thing because you may well end up wasting a grand total
>> > of ~370 minutes even if only a 30-second-job would need to be re-run.
>> >
>> > Having said that, I think you're right and the upside of keeping things
>> > together may outweigh that downside.
>>
>> I wasn't make a request or a demand to change or not to change
>> anything, so in this particular exchange there was no point where I
>> was right (or wrong, for that matter ;-).  I was asking if there was
>> a solid reasoning behind the split, and if there is, I am perfectly
>> happy to see it done as a separate workflow with the log message
>> that explains why it is separate.  I am also perfectly fine with
>> this rolled into the primary one, with clear reasoning behind the
>> choice recorded in the log message.
>
> I do not think that it would be an improvement to defend the default
> choice (i.e. to add this new job to `.github/workflows/main.yml`) in the
> commit message. It is the default for new CI stuff to go, after all, and
> we do not need to clutter the message by stating the obvious.

It wasn't quite obvious why we justify spending 370 minutes one more
time only to rerun 30-second job, though.