Re: [PATCH] ob-R output file with graphics parameter

[Jack Kamm <jackkamm@gmail.com>]

Hi Jeremie,

>> The requirement for a second file parameter was added in Org 9.3 to
>> support the use case in this thread:
>>
>> https://orgmode.org/list/3ac2f42a-8ff2-1464-fa36-451e2ef0eacd@pressure.to/
>>
>> But this syntax is annoyingly verbose for ob-R users, and also broke
>> lots of ob-R examples prior to Org 9.3.
>>
>> A simple fix might be to have the "graphics" flag implicitly add the
>> "file" flag as well. But we would need to first check that this doesn't
>> break other use cases.
>
> I do agree with this solution. If the current specification works, we
> could make it easy for ob-R user by implicitly adding a file flag. But
> as far as I understand, the change will have to be made in ob-core.el.

Hmm, I think you're right -- this would have to be done in ob-core.el.

I think it would still make sense though, and would be beneficial beyond
ob-R. According to [1], the "graphics" and "link" arguments don't do
anything unless used with "file", so it would make sense for them to
automatically add the "file" argument.

[1] https://orgmode.org/manual/Results-of-Evaluation.html#Results-of-Evaluation