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Re: [PATCH 2/2] add--interactive: detect bogus diffFilter output




On Mon, Mar 5, 2018 at 11:09 PM, Junio C Hamano <gitster@xxxxxxxxx> wrote:
> Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> writes:
>
>> On Sat, Mar 03 2018, Jeff King jotted:
>>
>>> +    if (@colored && @colored != @diff) {
>>
>> nit: should just be:
>>
>>     if (@colored != @diff) {
>>
>> It's not possible for @arrays in scalar context to be undefined.
>
> It is true that @array can not be undef, but your rewrite I think is
> wrong.
>
> The first "do the comparison only @colored is true" is not about
> definedness.  It is "@colored can be an empty array when the user is
> not using separate 'show these colored lines to the end user, feed
> these noncolored lines to git-apply command' feature, so @colored==0
> and @diff > 0 is perfectly fine".

Yes, sorry for the noise. I misread the intent of the code.