Re: [PATCH 1/2] trace2: rename environment variables to GIT_TRACE2*

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

Jeff Hostetler <git@jeffhostetler.com> writes:

> On 5/28/2019 7:02 PM, Ævar Arnfjörð Bjarmason wrote:
>>
>> On Sun, May 19 2019, SZEDER Gábor wrote:
>> ...
>>> So let's rename all GIT_TR2* environment variables to GIT_TRACE2*,
>>> before they make their way into a stable release.
>>
>> Good to see this land in 2.22.0. I wonder if we shouldn't take this
>> further and rename trace2.* config to trace.*, and just re-use
>> GIT_TRACE=1 instead of having GIT_TRACE2 as well, and have a
>> GIT_TRACE_VERSION to switch between them.
>>
>> Then we could just switch in a future version. We've never promised what
>> the trace format was going to look like, and the existing one isn't
>> configurable (and we won't be making the v1 one...), so starting from
>> the outset with "2" in config is unfortunate.
>>
>> We'd still have special snowflakes like e.g. GIT_TRACE_PACKET.
>>
>> OTOH we can just do this after the release if it's deemed a good idea,
>> and just support trace2.* as aliases for trace.* for some amount of
>> time, same for the env vars.
>
> I'm open to considering such a change while we're at it.

I'm a bit against "while we're at it" part.  Let's take the
s/TR2/TRACE2/ change and stop at it for the upcoming release,
without spending too much time on over-engineering the stuff that
are primarily for developers.

Thanks.