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From: Shourya Shukla <shouryashukla.oo@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, christian.couder@gmail.com, liu.denton@gmail.com
Subject: Re: [PATCH v3] submodule: port subcommand 'set-url' from shell to C
Date: Mon, 4 May 2020 23:09:36 +0530	[thread overview]
Message-ID: <20200504173936.GA8919@konoha> (raw)
In-Reply-To: <xmqqd07jitjz.fsf@gitster.c.googlers.com>

On 04/05 08:55, Junio C Hamano wrote: 
> > +	argc = parse_options(argc, argv, prefix, set_url_options,
> > +			     usage, 0);
> > +
> > +	if (quiet)
> > +		quiet |= OPT_QUIET;
> 
> This is bogus.  "command --quiet --quiet" would count-up quiet twice
> and would make it 2, and you or OPT_QUIET==1 in to make it 3, but
> your intention is quite clear that you want to pass 1 to
> sync_submodule() in such a case.

This is a grave mistake from my side. Though I do not understand how
will `quiet` be counted twice. Let's say we pass `--quiet` option in the
command, then `quiet` is set to 1. And now if we do `quiet|= OPT_QUIET`,
this will make `quiet` 1 again right? Could you please tell me what am I
missing out here?

The fix you suggested (quiet ? OPT_QUIET : 0), we use this because we
want to ensure `quiet` goes into sync as either 1/0 right? Not any other
non-zero positive integer right?

  reply	other threads:[~2020-05-04 17:39 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-04  7:27 [PATCH v3] submodule: port subcommand 'set-url' from shell to C Shourya Shukla
2020-05-04 15:55 ` Junio C Hamano
2020-05-04 17:39   ` Shourya Shukla [this message]
2020-05-04 19:14     ` Junio C Hamano

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