Re: [PATCH 2/5] git-mergetool--lib.sh: use TOOL_MODE when erroring about unknown tool

[Philippe Blain <levraiphilippeblain@gmail.com>]

Le 2024-11-22 à 13:57, Philippe Blain a écrit :
> Hi Junio (sorry for a late response),
> 
> Le 2024-11-12 à 20:27, Junio C Hamano a écrit :
>> "Philippe Blain via GitGitGadget" <gitgitgadget@gmail.com> writes:
>>
>>> From: Philippe Blain <levraiphilippeblain@gmail.com>
>>>
>>> In git-mergetool--lib.sh::get_merge_tool_path, we check if the chosen
>>> tool is valid via valid_tool and exit with an error message if not. This
>>> error message mentions "Unknown merge tool", even if the command the
>>> user tried was 'git difftool --tool=unknown'. Use the global 'TOOL_MODE'
>>> variable for a more correct error message.
>>
>> Makes sense.  Is this something we can easily test to catch future
>> regression, or is it too trivial to matter?
>>
>> I wouldn't mind if the answer were "the latter" ;-)
> 
> With the changes in the next commit of the series,

correction: with the changes in 3/5 and 5/5,

> this particular error
> becomes hard to trigger, as setup_user_tool will return with an error
> before the error message change in this patch is reached. So I would way
> it is not worth to add a test for this particular code path since it seems like
> it becomes unreachable in the next commit (but I could be wrong). So mostly
> "the latter" is my answer.