From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: "Michał Kępień" <michal@isc.org>
Cc: git@vger.kernel.org
Subject: Re: [PATCH v2 2/3] diff: add -I<regex> that ignores matching changes
Date: Tue, 13 Oct 2020 14:02:05 +0200 (CEST) [thread overview]
Message-ID: <nycvar.QRO.7.76.6.2010131401110.50@tvgsbejvaqbjf.bet> (raw)
In-Reply-To: <20201013063646.GB3278@larwa.hq.kempniu.pl>
[-- Attachment #1: Type: text/plain, Size: 1599 bytes --]
Hi Michał,
On Tue, 13 Oct 2020, Michał Kępień wrote:
> Hi Johannes,
>
> > > @@ -5491,6 +5511,9 @@ static void prep_parse_options(struct diff_options *options)
> > > OPT_BIT_F(0, "ignore-blank-lines", &options->xdl_opts,
> > > N_("ignore changes whose lines are all blank"),
> > > XDF_IGNORE_BLANK_LINES, PARSE_OPT_NONEG),
> > > + OPT_CALLBACK_F('I', NULL, options, N_("<regex>"),
> > > + N_("ignore changes whose all lines match <regex>"),
> > > + 0, diff_opt_ignore_regex),
> > > OPT_BIT(0, "indent-heuristic", &options->xdl_opts,
> > > N_("heuristic to shift diff hunk boundaries for easy reading"),
> > > XDF_INDENT_HEURISTIC),
> >
> > Are we releasing the `ignore_regex` anywhere?
>
> Oops, I tried to mimic what is done for 'anchors', and I failed to
> notice that apparently the elements of the options->anchors array are
> only free()'d when --patience is also used and the array pointer itself
> is never free()'d at all. Given this, I believe I need to fix
> diff_opt_ignore_regex() in patch 2 and also make sure that the memory
> allocated in diff_opt_anchored() gets properly released - in another
> preliminary clean-up patch?
>
> At first glance, diff_flush() - specifically the part below the
> 'free_queue' label - looks like a sane place to free() things. Am I
> mistaken?
Oh wow, from a cursory look it seems as if the diff machinery was not
exactly careful with releasing memory. I might be mistaken, but if I am
not, then this would deserve a separate patch series, methinks.
Ciao,
Dscho
next prev parent reply other threads:[~2020-10-13 14:10 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-01 12:06 [PATCH 0/2] diff: add -I<regex> that ignores matching changes Michał Kępień
2020-10-01 12:06 ` [PATCH 1/2] " Michał Kępień
2020-10-01 18:21 ` Junio C Hamano
2020-10-07 19:48 ` Michał Kępień
2020-10-07 20:08 ` Junio C Hamano
2020-10-01 12:06 ` [PATCH 2/2] t: add -I<regex> tests Michał Kępień
2020-10-01 17:02 ` [PATCH 0/2] diff: add -I<regex> that ignores matching changes Junio C Hamano
2020-10-12 9:17 ` [PATCH v2 0/3] " Michał Kępień
2020-10-12 9:17 ` [PATCH v2 1/3] merge-base, xdiff: zero out xpparam_t structures Michał Kępień
2020-10-12 11:14 ` Johannes Schindelin
2020-10-12 17:09 ` Junio C Hamano
2020-10-12 19:52 ` Junio C Hamano
2020-10-13 6:35 ` Michał Kępień
2020-10-12 9:17 ` [PATCH v2 2/3] diff: add -I<regex> that ignores matching changes Michał Kępień
2020-10-12 11:20 ` Johannes Schindelin
2020-10-12 20:00 ` Junio C Hamano
2020-10-12 20:39 ` Johannes Schindelin
2020-10-12 21:43 ` Junio C Hamano
2020-10-13 6:37 ` Michał Kępień
2020-10-13 15:49 ` Junio C Hamano
2020-10-13 6:36 ` Michał Kępień
2020-10-13 12:02 ` Johannes Schindelin [this message]
2020-10-13 15:53 ` Junio C Hamano
2020-10-13 18:45 ` Michał Kępień
2020-10-12 18:01 ` Junio C Hamano
2020-10-13 6:38 ` Michał Kępień
2020-10-12 20:04 ` Junio C Hamano
2020-10-13 6:38 ` Michał Kępień
2020-10-12 9:17 ` [PATCH v2 3/3] t: add -I<regex> tests Michał Kępień
2020-10-12 11:49 ` Johannes Schindelin
2020-10-13 6:38 ` Michał Kępień
2020-10-13 12:00 ` Johannes Schindelin
2020-10-13 16:00 ` Junio C Hamano
2020-10-13 19:01 ` Michał Kępień
2020-10-15 11:45 ` Johannes Schindelin
2020-10-15 7:24 ` [PATCH v3 0/2] diff: add -I<regex> that ignores matching changes Michał Kępień
2020-10-15 7:24 ` [PATCH v3 1/2] merge-base, xdiff: zero out xpparam_t structures Michał Kępień
2020-10-15 7:24 ` [PATCH v3 2/2] diff: add -I<regex> that ignores matching changes Michał Kępień
2020-10-16 15:32 ` Phillip Wood
2020-10-16 18:04 ` Junio C Hamano
2020-10-19 9:48 ` Michał Kępień
2020-10-16 18:16 ` Junio C Hamano
2020-10-19 9:55 ` Michał Kępień
2020-10-19 17:29 ` Junio C Hamano
2020-10-16 10:00 ` [PATCH v3 0/2] " Johannes Schindelin
2020-10-20 6:48 ` [PATCH v4 " Michał Kępień
2020-10-20 6:48 ` [PATCH v4 1/2] merge-base, xdiff: zero out xpparam_t structures Michał Kępień
2020-10-20 6:48 ` [PATCH v4 2/2] diff: add -I<regex> that ignores matching changes Michał Kępień
2021-02-05 14:13 ` [PATCH 1/2] diff: add an API for deferred freeing Ævar Arnfjörð Bjarmason
2021-02-10 16:00 ` Johannes Schindelin
2021-02-11 3:00 ` Ævar Arnfjörð Bjarmason
2021-02-11 9:40 ` Johannes Schindelin
2021-02-11 10:21 ` Jeff King
2021-02-11 10:45 ` [PATCH v2 0/2] " Ævar Arnfjörð Bjarmason
2021-02-11 10:45 ` [PATCH v2 1/2] " Ævar Arnfjörð Bjarmason
2021-02-11 10:45 ` [PATCH v2 2/2] diff: plug memory leak from regcomp() on {log,diff} -I Ævar Arnfjörð Bjarmason
2021-02-05 14:13 ` [PATCH " Ævar Arnfjörð Bjarmason
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