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From: Junio C Hamano <gitster@pobox.com>
To: Jeff King <peff@peff.net>
Cc: Michael Haggerty <mhagger@alum.mit.edu>,
	David Turner <novalis@novalis.org>,
	git@vger.kernel.org, David Turner <dturner@twosigma.com>
Subject: Re: thoughts on error passing, was Re: [PATCH 2/2] fsck: handle bad trees like other errors
Date: Wed, 28 Sep 2016 11:02:27 -0700	[thread overview]
Message-ID: <xmqqh98zkimk.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <20160928085841.aoisson3fnuke47q@sigill.intra.peff.net> (Jeff King's message of "Wed, 28 Sep 2016 04:58:41 -0400")

Jeff King <peff@peff.net> writes:

>  	if (!dont_change_ref) {
>  		struct ref_transaction *transaction;
> -		struct strbuf err = STRBUF_INIT;
> -
> -		transaction = ref_transaction_begin(&err);
> -		if (!transaction ||
> -		    ref_transaction_update(transaction, ref.buf,
> -					   sha1, forcing ? NULL : null_sha1,
> -					   0, msg, &err) ||
> -		    ref_transaction_commit(transaction, &err))
> -			die("%s", err.buf);
> +
> +		transaction = ref_transaction_begin(&error_die);
> +		ref_transaction_update(transaction, ref.buf,
> +				       sha1, forcing ? NULL : null_sha1,
> +				       0, msg, &error_die);
> +		ref_transaction_commit(transaction, &error_die);
>  		ref_transaction_free(transaction);
> -		strbuf_release(&err);
>  	}
>  
>  	if (real_ref && track)
>
> which is much shorter and to the point (it does rely on the called
> functions always calling report_error() and never just returning NULL or
> "-1", but that should be the already. If it isn't, we'd be printing
> "fatal: " with no message).

Yes but... grepping for die() got a lot harder, which may not be a
good thing.

I do like the flexibility such a mechanism offers, but
wrapping/hiding die in it is probably an example that the
flexibility went a bit too far.

  reply	other threads:[~2016-09-28 18:02 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-26 19:32 [PATCH 0/2] tree-walk improvements David Turner
2016-09-26 19:32 ` [PATCH 1/2] tree-walk: be more specific about corrupt tree errors David Turner
2016-09-27  5:14   ` Jeff King
2016-09-27  5:35     ` Junio C Hamano
2016-09-27 15:21     ` David Turner
2016-09-26 19:32 ` [PATCH 2/2] fsck: handle bad trees like other errors David Turner
2016-09-26 19:51   ` Junio C Hamano
2016-09-26 20:08   ` Junio C Hamano
2016-09-26 20:11     ` Junio C Hamano
2016-09-27  5:27   ` Jeff King
2016-09-27 15:19     ` David Turner
2016-09-27 19:19       ` thoughts on error passing, was " Jeff King
2016-09-27 22:57         ` David Turner
2016-09-28  6:54           ` Jeff King
2016-09-28  5:01         ` Michael Haggerty
2016-09-28  8:58           ` Jeff King
2016-09-28 18:02             ` Junio C Hamano [this message]
2016-09-26 19:39 ` [PATCH 0/2] tree-walk improvements Stefan Beller
2016-09-26 19:43 ` Junio C Hamano
2016-09-26 20:22   ` David Turner
2016-09-27  0:35     ` Junio C Hamano
2016-09-26 21:04 ` Junio C Hamano

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