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SubjectRe: [ANNOUNCE] Git v2.22.0-rc1
On Tue, May 21, 2019 at 5:27 AM Ævar Arnfjörð Bjarmason
<> wrote:
> On Mon, May 20 2019, Bryan Turner wrote:
> > On Sun, May 19, 2019 at 10:00 AM Junio C Hamano <> wrote:
> >>
> >> * The diff machinery, one of the oldest parts of the system, which
> >> long predates the parse-options API, uses fairly long and complex
> >> handcrafted option parser. This is being rewritten to use the
> >> parse-options API.
> >
> > It looks like with these changes it's no longer possible to use "-U"
> > (or, I'd assume, "--unified") without adding an explicit number for
> > context lines.
> >
> > ...
> I don't know if argument-less -U was ever intended, but I think in light
> of what you're saying we should consider it a regression to fix before
> 2.22.0 is out. CC-ing Duy who wrote d473e2e0e8 ("diff.c: convert
> -U|--unified", 2019-01-27).

There should be no behavior change in this series. Period. I'm pretty
sure I misread the old opt_arg() code and this is the result.
--inter-hunk-context is also affected. I'm working on it.

> The bug there is that the old opt_arg() code would be torelant to empty
> values. I noticed a similar change the other day with the --abbrev
> option, but didn't think it was worth noting. Maybe it's a more general
> problem, in both cases we had a blindspot in our tests.

Hmm.. this one is different (at least it does not use opt_arg()). But
I'll double check.

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