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From:   Junio C Hamano <gitster@pobox.com>
To:     Linus Torvalds <torvalds@linux-foundation.org>
Cc:     Git List Mailing <git@vger.kernel.org>
Subject: Re: RFC: Using '--no-output-indicator-old' to only show new state
References: <CAHk-=wgh8emJn-+FtxN=m_SCPiP6cGKHU-5ozzV9tWBMxn+xcA@mail.gmail.com>
Date:   Thu, 10 Mar 2022 12:13:44 -0800
In-Reply-To: <CAHk-=wgh8emJn-+FtxN=m_SCPiP6cGKHU-5ozzV9tWBMxn+xcA@mail.gmail.com>
        (Linus Torvalds's message of "Thu, 10 Mar 2022 11:40:50 -0800")
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Linus Torvalds <torvalds@linux-foundation.org> writes:

> So after another round of doing
>
>      git diff | grep -v '^-'
>
> to just show what the end result of a patch is, I decided that there
> has to be a better way.
>
> Of course, to normal people, that "better way" is probably some GUI
> tool that shows diffs as "before/after" in two different frames next
> to each other, but I'm a grumpy old man ("Get off my lawn") and I do
> everything but read my email in a standard text-only terminal.

Sounds like the "apply --no-add" in the opposite direction ;-) I
would find it handy myself, too, though I tend to read my patches
after applying to my tree so the postimage is usually an invocation
of "less" away for me.

I do not think it is a bad idea to have an option to give only the
postimage and another option to give only the preimage.  It would
also trivially allow people to show the side-by-side diff in GUI.