Re: [PATCH] ci: fix Python dependency on Ubuntu 24.04

From: Junio C Hamano <gitster@pobox.com>
Date: May 6, 2024, 17:49 UTC
Message-ID: <xmqq7cg6zv7g.fsf@gitster.g>
In-Reply-To: <ZjjU_Gaum8iYLks8@tanuki>

Patrick Steinhardt <ps@pks.im> writes:

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> So ultimately, it does not matter which jobs use what. But what does
> matter is whether the image even supports Python 2. And as we nowadays
> do have a fair split of jobs using "ubuntu:20.04" and "ubuntu:latest",
> I'd just use that the the criterium to pick the Python version.
>
> Once we drop support for Ubuntu 20.04, we can then more forward and stop
> supporting Python 2 altogether. Or maybe even earlier than that -- I do
> not think it is reasonable to ask Git to maintain compatibility with a
> project that is end of life already.

Yup. If an distro sticks to Python 2 for whatever reason, they may want to donate and dedicate CI resources, but otherwise it is not really our job to keep compatibility on our side.

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>> With this change, "linux-gcc" jobs using ubuntu 20.04 will now use
>> Python 2. Is that what we want?
>
> Well, as explained above, the selection was arbitrary in the first
> place. Now it's less so as the choice is mandated by what is actually
> supported.

Yup, as long as there is one that supports Python 2 among the distros we happen to use for our CIs, we can pick that one. Otherwise we should drop.

Dropping Python 2 support does not have to wait for Git 3.0, I would say.

Thanks.