From: "Martin Ågren" <martin.agren@gmail.com> To: Derrick Stolee via GitGitGadget <gitgitgadget@gmail.com> Cc: "Git Mailing List" <git@vger.kernel.org>, "Jonathan Nieder" <jrnieder@gmail.com>, "Jonathan Tan" <jonathantanmy@google.com>, sluongng@gmail.com, "Đoàn Trần Công Danh" <congdanhqx@gmail.com>, "SZEDER Gábor" <szeder.dev@gmail.com>, "Derrick Stolee" <stolee@gmail.com>, "Derrick Stolee" <derrickstolee@github.com>, "Derrick Stolee" <dstolee@microsoft.com> Subject: Re: [PATCH v2 6/7] maintenance: recommended schedule in register/start Date: Tue, 29 Sep 2020 21:48:54 +0200 [thread overview] Message-ID: <CAN0heSqkJoqXKP5ccaGMA1_ppd0bcQ7G0ozUH+H7tBMonhcrjQ@mail.gmail.com> (raw) In-Reply-To: <f609c1bde27558db2a9601ac34f8a51ce86f0e2c.1599846561.git.gitgitgadget@gmail.com> Hi Stolee, On Fri, 11 Sep 2020 at 19:53, Derrick Stolee via GitGitGadget <gitgitgadget@gmail.com> wrote: > If a user sets any 'maintenance.<task>.schedule' config value, then > they have chosen a specific schedule for themselves and Git should > respect that. > > However, in an effort to recommend a good schedule for repositories of > all sizes, set new config values for recommended tasks that are safe to > run in the background while users run foreground Git commands. These > commands are generally everything but the 'gc' task. If there aren't any "schedule" configurations, we'll go ahead and sprinkle in quite a few of them. I suppose that another approach would be that later, much later, when we go look for these configuration items, we could go "there is not a single one set, let's act as if *these* were configured". The advantage there would be that we can tweak those defaults over time. Whereas with the approach of this patch, v2.29.0 will give the user a snapshot of 2020's best practices. If they want to catch up, they will need to drop all their "schedule" config and re-"register", or use a future `git maintenance reregister`. ;-) Anyway, this is a convenience thing. There's a chance that "convenience" interferes with "perfect" and "optimal". I guess that's to be expected. > +If your repository has no 'maintenance.<task>.schedule' configuration Thank you for going above and beyond with marking config items et cetera for rendering in `monospace`. I just noticed that this is slightly mis-marked-upped. If you end up rerolling this patch series for some reason, you might want to switch from 'single quotes' to `backticks` in this particular instance. While I'm commenting anyway... > +static int has_schedule_config(void) > +{ > + int i, found = 0; > + struct strbuf config_name = STRBUF_INIT; > + size_t prefix; > + > + strbuf_addstr(&config_name, "maintenance."); > + prefix = config_name.len; > + > + for (i = 0; !found && i < TASK__COUNT; i++) { > + char *value; > + > + strbuf_setlen(&config_name, prefix); > + strbuf_addf(&config_name, "%s.schedule", tasks[i].name); > + > + if (!git_config_get_string(config_name.buf, &value)) { > + found = 1; > + FREE_AND_NULL(value); > + } > + } > + > + strbuf_release(&config_name); > + return found; > +} That `FREE_AND_NULL()` caught me off-guard. The pointer is on the stack. I suppose it doesn't *hurt*, but being careful to set it to NULL made me go "huh". I suppose you could drop the `!found` check in favour of `break`-ing precisely when you get a hit. And I do wonder how much the reuse of the "maintenance." part of the buffer helps performance. In the end, you could use something like the following (not compiled): static int has_schedule_config(void) { int i, found = 0; struct strbuf config_name = STRBUF_INIT; for (i = 0; i < TASK__COUNT; i++) { const char *value; strbuf_reset(&config_name); strbuf_addf(&config_name, "maintenance.%s.schedule", tasks[i].name); if (!git_config_get_value(config_name.buf, &value)) { found = 1; break; } } strbuf_release(&config_name); return found; } Anyway, that's just microniting, obviously, but maybe in the sum it has some value. Martin
next prev parent reply other threads:[~2020-09-29 19:49 UTC|newest] Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-04 15:41 [PATCH 0/7] Maintenance III: Background maintenance Derrick Stolee via GitGitGadget 2020-09-04 15:42 ` [PATCH 1/7] maintenance: optionally skip --auto process Derrick Stolee via GitGitGadget 2020-09-04 15:42 ` [PATCH 2/7] maintenance: add --schedule option and config Derrick Stolee via GitGitGadget 2020-09-08 13:07 ` Đoàn Trần Công Danh 2020-09-09 12:14 ` Derrick Stolee 2020-09-04 15:42 ` [PATCH 3/7] for-each-repo: run subcommands on configured repos Derrick Stolee via GitGitGadget 2020-09-04 15:42 ` [PATCH 4/7] maintenance: add [un]register subcommands Derrick Stolee via GitGitGadget 2020-09-04 15:42 ` [PATCH 5/7] maintenance: add start/stop subcommands Derrick Stolee via GitGitGadget 2020-09-08 6:29 ` SZEDER Gábor 2020-09-08 12:43 ` Derrick Stolee 2020-09-08 19:31 ` Junio C Hamano 2020-09-04 15:42 ` [PATCH 6/7] maintenance: recommended schedule in register/start Derrick Stolee via GitGitGadget 2020-09-04 15:42 ` [PATCH 7/7] maintenance: add troubleshooting guide to docs Derrick Stolee via GitGitGadget 2020-09-11 17:49 ` [PATCH v2 0/7] Maintenance III: Background maintenance Derrick Stolee via GitGitGadget 2020-09-11 17:49 ` [PATCH v2 1/7] maintenance: optionally skip --auto process Derrick Stolee via GitGitGadget 2020-09-11 17:49 ` [PATCH v2 2/7] maintenance: add --schedule option and config Derrick Stolee via GitGitGadget 2020-09-11 17:49 ` [PATCH v2 3/7] for-each-repo: run subcommands on configured repos Derrick Stolee via GitGitGadget 2020-09-11 17:49 ` [PATCH v2 4/7] maintenance: add [un]register subcommands Derrick Stolee via GitGitGadget 2020-09-17 14:05 ` Đoàn Trần Công Danh 2020-09-11 17:49 ` [PATCH v2 5/7] maintenance: add start/stop subcommands Derrick Stolee via GitGitGadget 2020-09-11 17:49 ` [PATCH v2 6/7] maintenance: recommended schedule in register/start Derrick Stolee via GitGitGadget 2020-09-29 19:48 ` Martin Ågren [this message] 2020-09-30 20:11 ` Derrick Stolee 2020-10-01 20:38 ` Derrick Stolee 2020-10-02 0:38 ` Đoàn Trần Công Danh 2020-10-02 1:55 ` Derrick Stolee 2020-10-05 13:16 ` Đoàn Trần Công Danh 2020-10-05 18:17 ` Derrick Stolee 2020-09-11 17:49 ` [PATCH v2 7/7] maintenance: add troubleshooting guide to docs Derrick Stolee via GitGitGadget 2020-10-05 12:57 ` [PATCH v3 0/7] Maintenance III: Background maintenance Derrick Stolee via GitGitGadget 2020-10-05 12:57 ` [PATCH v3 1/7] maintenance: optionally skip --auto process Derrick Stolee via GitGitGadget 2020-10-05 12:57 ` [PATCH v3 2/7] maintenance: add --schedule option and config Derrick Stolee via GitGitGadget 2020-10-05 12:57 ` [PATCH v3 3/7] for-each-repo: run subcommands on configured repos Derrick Stolee via GitGitGadget 2020-10-05 12:57 ` [PATCH v3 4/7] maintenance: add [un]register subcommands Derrick Stolee via GitGitGadget 2020-10-05 12:57 ` [PATCH v3 5/7] maintenance: add start/stop subcommands Derrick Stolee via GitGitGadget 2020-10-05 12:57 ` [PATCH v3 6/7] maintenance: use default schedule if not configured Derrick Stolee via GitGitGadget 2020-10-05 19:57 ` Martin Ågren 2020-10-08 13:32 ` Derrick Stolee 2020-10-05 12:57 ` [PATCH v3 7/7] maintenance: add troubleshooting guide to docs Derrick Stolee via GitGitGadget 2020-10-15 17:21 ` [PATCH v4 0/8] Maintenance III: Background maintenance Derrick Stolee via GitGitGadget 2020-10-15 17:21 ` [PATCH v4 1/8] maintenance: optionally skip --auto process Derrick Stolee via GitGitGadget 2020-10-15 17:21 ` [PATCH v4 2/8] maintenance: add --schedule option and config Derrick Stolee via GitGitGadget 2021-02-09 14:06 ` Ævar Arnfjörð Bjarmason 2021-02-09 16:54 ` Derrick Stolee 2021-05-10 12:16 ` Ævar Arnfjörð Bjarmason 2021-05-10 18:42 ` Junio C Hamano 2020-10-15 17:21 ` [PATCH v4 3/8] for-each-repo: run subcommands on configured repos Derrick Stolee via GitGitGadget 2021-05-03 16:10 ` Andrzej Hunt 2021-05-03 17:01 ` Eric Sunshine 2021-05-03 19:26 ` Eric Sunshine 2021-05-03 19:43 ` Derrick Stolee 2020-10-15 17:22 ` [PATCH v4 4/8] maintenance: add [un]register subcommands Derrick Stolee via GitGitGadget 2020-10-15 17:22 ` [PATCH v4 5/8] maintenance: add start/stop subcommands Derrick Stolee via GitGitGadget 2020-12-09 18:51 ` Josh Steadmon 2020-12-09 19:16 ` Josh Steadmon 2020-12-09 21:59 ` Derrick Stolee 2020-12-10 0:13 ` Junio C Hamano 2020-12-10 1:52 ` Derrick Stolee 2020-12-10 6:54 ` Junio C Hamano 2020-10-15 17:22 ` [PATCH v4 6/8] maintenance: create maintenance.strategy config Derrick Stolee via GitGitGadget 2020-10-15 17:22 ` [PATCH v4 7/8] maintenance: use 'incremental' strategy by default Derrick Stolee via GitGitGadget 2020-10-15 17:22 ` [PATCH v4 8/8] maintenance: add troubleshooting guide to docs Derrick Stolee via GitGitGadget
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