Re: [PATCH 1/1] Introduce "precious" file concept

> On Thu, Feb 21, 2019 at 5:39 AM Junio C Hamano <gitster@pobox.com> wrote:
>> > So now you would need to
>> > add more or less the same set of ignore rules in .gitattributes to
>> > mark them trashable, and gitignore/gitattributes rules are not exactly
>> > compatible, you can't just blindly copy them over. Every time you add
>> > one more .gitignore rule, there's a good chance you need to add a
>> > similar rule for trashable attribute.
>>
>> I am not sure why you would even need to _duplicate_.
>>
>> Are you saying for each and every rule that specify "ignored and
>> expendable" in .gitignore there always will be "ignored but
>> precious" exception that match the pattern?  Given that we have been
>> OK for so long without even needing "precious", I find it somewhat
>> unrealistic to assume so.
>
> If all ignored files are now redefined as precious and we mark them
> expendable with trashable attribute, then we need to duplicate most of
> the rules. The "precious" attribute of course does not have this
> problem since precious-and-ignored files should be rare.