Re: [PATCH v2] mergetool--lib: fix '--tool-help' to correctly show available tools

[Philippe Blain <levraiphilippeblain@gmail.com>]

Le 2021-01-06 à 18:06, Junio C Hamano a écrit :
> Philippe Blain <levraiphilippeblain@gmail.com> writes:
> 
>>> What was the symptom before the fix?  Is it just missing only some
>>> tools among 30?  Was there some pattern in names of missing one and
>>> the ones that still got output?  Or was it more like "we see nothing
>>> shown"?
>> ...
>> Note that 'vimdiff', 'nvimdiff3' (last variant for vimdiff),
>> 'bc' and 'bc4' (last variant for bc) are absent, and
>> all other tools that have no variants are absent as well.
> 
> Thanks, that is exactly the kind of "some pattern" I wanted to see
> us looking for, because I wonder if it is a more robust and cheaper
> (maintenance wise) approach to find one single tool that we support,
> which does not have, and which is unlikely to gain, any numbered
> variants.  If we can find such a tool, we can grep for its name in
> the output.
> 

Or, just choose a few tools, including some variants, and grep for those?
This way we are not relying on a single tool being shown for the test
to pas...