Re: [PATCH v2 0/7] making log --first-parent imply -m

[Jeff King <peff@peff.net>]

On Mon, Aug 03, 2020 at 11:25:05PM +0300, Sergey Organov wrote:

> I mean, why introduce --[no-]diff-merges in the first place, if we do
> agree --xxx=(none|...) is where we'd like to end up? I thought the
> answer was "it's too late", but in fact it was an answer to changing
> semantics of -m that I don't think I suggest.

Spelling out the between the lines of my answer a bit more, it was
really: I am happy enough with the topic as-is and do not want to rework
it again. But if _you_ want to do so, I have no problem with it. :)

> As a side-note, my secret hope is for pure "git log -p" to give me diff
> against first parent for all the commits, no matter how many parents
> they happen to have. This desire still sounds like a job for
> configuration option though, rather than, or in addition to,
> --diff-merges or --diff-parents? We well can later introduce a
> config to assume --diff-merges=<config> when no explicit
> --diff-merges=<value> is specified, right?

Yes, I think a config there would be reasonable as long as:

  - we have the command-line options to counteract it when necessary
    (i.e., --diff-parents or your advanced --diff-merges exists, too)

  - it only impacts porcelain "git log", and not plumbing like
    diff-tree.

-Peff