maintenance: use 'incremental' strategy by default

The 'git maintenance (register|start)' subcommands add the current repository to the global Git config so maintenance will operate on that repository. It does not specify what maintenance should occur or how often. To make it simple for users to start background maintenance with a recommended schedlue, update the 'maintenance.strategy' config option in both the 'register' and 'start' subcommands. This allows users to customize beyond the defaults using individual 'maintenance.<task>.schedule' options, but also the user can opt-out of this strategy using 'maintenance.strategy=none'. Helped-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Derrick Stolee committed Oct 15, 2020 at 17:22 UTC 61f7a383d3b9a7306f1fd44a8dfa070deacc0752
3 files changed +43 -4
Documentation/git-maintenance.txt
+17
@@ -37,6 +37,23 @@ register::
37 `maintenance.<task>.schedule`. The tasks that are enabled are safe
38 for running in the background without disrupting foreground
39 processes.
40 ++
41 +The `register` subcomand will also set the `maintenance.strategy` config
42 +value to `incremental`, if this value is not previously set. The
43 +`incremental` strategy uses the following schedule for each maintenance
44 +task:
45 ++
46 +--
47 +* `gc`: disabled.
48 +* `commit-graph`: hourly.
49 +* `prefetch`: hourly.
50 +* `loose-objects`: daily.
51 +* `incremental-repack`: daily.
52 +--
53 ++
54 +`git maintenance register` will also disable foreground maintenance by
55 +setting `maintenance.auto = false` in the current repository. This config
56 +setting will remain after a `git maintenance unregister` command.
57
58 run::
59 Run one or more maintenance tasks. If one or more `--task` options
builtin/gc.c
+10
@@ -1434,6 +1434,7 @@ static int maintenance_run(int argc, const char **argv, const char *prefix)
1434
1435 static int maintenance_register(void)
1436 {
1437 + char *config_value;
1438 struct child_process config_set = CHILD_PROCESS_INIT;
1439 struct child_process config_get = CHILD_PROCESS_INIT;
1440
@@ -1441,6 +1442,15 @@ static int maintenance_register(void)
1442 if (!the_repository || !the_repository->gitdir)
1443 return 0;
1444
1445 + /* Disable foreground maintenance */
1446 + git_config_set("maintenance.auto", "false");
1447 +
1448 + /* Set maintenance strategy, if unset */
1449 + if (!git_config_get_string("maintenance.strategy", &config_value))
1450 + free(config_value);
1451 + else
1452 + git_config_set("maintenance.strategy", "incremental");
1453 +
1454 config_get.git_cmd = 1;
1455 strvec_pushl(&config_get.args, "config", "--global", "--get", "maintenance.repo",
1456 the_repository->worktree ? the_repository->worktree
t/t7900-maintenance.sh
+16 -4
@@ -354,11 +354,14 @@ test_expect_success 'register and unregister' '
354 git config --global --add maintenance.repo /existing1 &&
355 git config --global --add maintenance.repo /existing2 &&
356 git config --global --get-all maintenance.repo >before &&
357 +
358 git maintenance register &&
358 - git config --global --get-all maintenance.repo >actual &&
359 - cp before after &&
360 - pwd >>after &&
361 - test_cmp after actual &&
359 + test_cmp_config false maintenance.auto &&
360 + git config --global --get-all maintenance.repo >between &&
361 + cp before expect &&
362 + pwd >>expect &&
363 + test_cmp expect between &&
364 +
365 git maintenance unregister &&
366 git config --global --get-all maintenance.repo >actual &&
367 test_cmp before actual
@@ -392,4 +395,13 @@ test_expect_success 'start preserves existing schedule' '
395 grep "Important information!" cron.txt
396 '
397
398 +test_expect_success 'register preserves existing strategy' '
399 + git config maintenance.strategy none &&
400 + git maintenance register &&
401 + test_config maintenance.strategy none &&
402 + git config --unset maintenance.strategy &&
403 + git maintenance register &&
404 + test_config maintenance.strategy incremental
405 +'
406 +
407 test_done