Re: Difficulty with parsing colorized diff output

[Jeff King <peff@peff.net>]

On Tue, Dec 11, 2018 at 01:55:09PM -0500, George King wrote:

> I just noticed that while `wsErrorHighlight = none` fixes the problem
> of extra green codes for regular diff, it fails to have any effect
> during interactive `git add -p`.

This is due to the way add--interactive invokes diff. It uses the
plumbing commands (diff-tree, diff-files, etc), which do not respect
config which changes the output (since their purpose is to provide
stable machine-readable output).

But add--interactive does a slightly funny thing: it runs each diff
twice. Once to get the machine-readable version, and once to get a
colorized version which it shows to the user. When it does the latter,
it has to manually enable other options (e.g., passing --color as
appropriate, or passing along diff.algorithm).

So the matching behavior here would be for it to look as
wsErrorHighlight and pass it along as a command line option.

-Peff