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From: "Lénaïc Huard" <lenaic@lhuard.fr>
To: git@vger.kernel.org
Cc: "Junio C Hamano" <gitster@pobox.com>,
	"Derrick Stolee" <dstolee@microsoft.com>,
	"Eric Sunshine" <sunshine@sunshineco.com>,
	"Đoàn Trần Công Danh" <congdanhqx@gmail.com>,
	"Felipe Contreras" <felipe.contreras@gmail.com>,
	"Phillip Wood" <phillip.wood123@gmail.com>,
	"Martin Ågren" <martin.agren@gmail.com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	"Bagas Sanjaya" <bagasdotme@gmail.com>,
	"brian m . carlson" <sandals@crustytoothpaste.net>,
	"Johannes Schindelin" <Johannes.Schindelin@gmx.de>,
	"Lénaïc Huard" <lenaic@lhuard.fr>
Subject: [PATCH v5 0/3] add support for systemd timers on Linux
Date: Tue,  8 Jun 2021 15:39:57 +0200	[thread overview]
Message-ID: <20210608134000.663398-1-lenaic@lhuard.fr> (raw)
In-Reply-To: <20210524071538.46862-1-lenaic@lhuard.fr>

Hello,

I’ve reworked this submission based on the valuable feedback I’ve received.
Thanks again for it!

The patchset contains now the following patches:

* cache.h: Introduce a generic "xdg_config_home_for(…)" function

  This patch introduces a function to compute configuration files
  paths inside $XDG_CONFIG_HOME or ~/.config for other programs than
  git itself.
  It is used in the latest patch of this series to compute systemd
  unit files location.

  The only change in this patch compared to its previous version is
  the renaming of the first parameter of the `xdg_config_home_for(…)`
  function from `prog` to `subdir`.

* maintenance: introduce ENABLE/DISABLE for code clarity

  I just completely dropped this patch as it turned out that replacing
  some 0/1 values by `ENABLE`/`DISABLE` enum values wasn’t making the
  code look nicer as initially expected.

* maintenance: `git maintenance run` learned `--scheduler=<scheduler>`

  This patch contains all the code that is related to the addition of
  the new `--scheduler` parameter of the `git maintenance start`
  command, independently of the systemd timers.

  The main changes in this patch compared to its previous version are:

    * Revert all the changes that were previously introduced by the
      `ENABLE`/`DISABLE` enum values.

    * Remove the `strlcpy` in the testing framework inside the
      `get_schedule_cmd` function.

    * `update_background_schedule` loops over all the available
      schedulers, disables all of them except the one which is
      enabled.
      In this new version of the patch, it is now ensured that all the
      schedulers deactivation are done before the activation.
      The goal of this change is avoid a potential race condition
      where two schedulers could be enabled at the same time.
      This behaviour change has been reflected in the tests.

    * The local variable `builtin_maintenance_start_options` has been
      shortened.

* maintenance: add support for systemd timers on Linux

  This patch implements the support of systemd timers on top of
  crontab scheduler on Linux systems.

  The main changes in this patch compared to its previous version are:

    * The caching logic of `is_systemd_timer_available` has been
      dropped.
      I initially wanted to cache the outcome of forking and executing
      an external command to avoid doing it several times as
      `is_systemd_timer_available` is invoked from several places
      (`resolve_auto_scheduler`, `validate_scheduler` and
      `update_background_scheduler`).
      But it’s true they’re not always all called.
      In the case of `maintenance stop`, `resolve_auto_scheduler` and
      `validate_scheduler` are not called.
      In the case of `maintenance start`, the `if (enable &&
      opts->scheduler == i)` statement inside
      `update_background_schedule` skips the execution of
      `is_systemd_timer_available`.

    * The `is_systemd_timer_available` has been split in two parts:
      * `is_systemd_timer_available` is the entry point and holds the
        platform agnostic testing framework logic.
      * `real_is_systemd_timer_available` contains the platform
        specific logic.

    * The error management of `systemd_timer_write_unit_templates` has
      been reviewed.
      The return code of `fopen`, `fputs`, `fclose`, etc. are now
      checked.
      If this function manages to write one file, but fails at writing
      the second one, it will attempt to delete the first one to not
      leave the system in an inconsistent state.

    * The error management of `systemd_timer_delete_unit_templates`
      has also been reviewed. The error code of `unlink` is now
      checked.

I hope I’ve addressed all your valuable feedback. Do not hesitate to
let me know if I’ve forgotten anything.

Lénaïc Huard (3):
  cache.h: Introduce a generic "xdg_config_home_for(…)" function
  maintenance: `git maintenance run` learned `--scheduler=<scheduler>`
  maintenance: add support for systemd timers on Linux

 Documentation/git-maintenance.txt |  60 ++++
 builtin/gc.c                      | 564 ++++++++++++++++++++++++++----
 cache.h                           |   7 +
 path.c                            |  13 +-
 t/t7900-maintenance.sh            | 110 +++++-
 5 files changed, 676 insertions(+), 78 deletions(-)

-- 
2.32.0


  parent reply	other threads:[~2021-06-08 13:41 UTC|newest]

Thread overview: 138+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-01 14:52 [PATCH] maintenance: use " Lénaïc Huard
2021-05-01 20:02 ` brian m. carlson
2021-05-02  5:28 ` Bagas Sanjaya
2021-05-02  6:49   ` Eric Sunshine
2021-05-02  6:45 ` Eric Sunshine
2021-05-02 14:10   ` Phillip Wood
2021-05-05 12:19     ` Đoàn Trần Công Danh
2021-05-05 14:57       ` Phillip Wood
2021-05-05 12:01   ` Ævar Arnfjörð Bjarmason
2021-05-09 22:34     ` Lénaïc Huard
2021-05-10 13:03       ` Ævar Arnfjörð Bjarmason
2021-05-02 11:12 ` Bagas Sanjaya
2021-05-03 12:04 ` Derrick Stolee
2021-05-09 21:32 ` [PATCH v2 0/1] " Lénaïc Huard
2021-05-09 21:32   ` [PATCH v2 1/1] " Lénaïc Huard
2021-05-10  1:20     ` Đoàn Trần Công Danh
2021-05-10  2:48       ` Eric Sunshine
2021-05-10  6:25         ` Junio C Hamano
2021-05-12  0:29           ` Đoàn Trần Công Danh
2021-05-12  6:59             ` Felipe Contreras
2021-05-12 13:26               ` Phillip Wood
2021-05-12 13:38             ` Phillip Wood
2021-05-12 15:41               ` Đoàn Trần Công Danh
2021-05-10 18:03     ` Phillip Wood
2021-05-10 18:25       ` Eric Sunshine
2021-05-10 20:09         ` Phillip Wood
2021-05-10 20:52           ` Eric Sunshine
2021-06-08 14:55       ` Lénaïc Huard
2021-05-10 19:15     ` Martin Ågren
2021-05-11 14:50     ` Phillip Wood
2021-05-11 17:31     ` Derrick Stolee
2021-05-20 22:13   ` [PATCH v3 0/4] " Lénaïc Huard
2021-05-20 22:13     ` [PATCH v3 1/4] cache.h: rename "xdg_config_home" to "xdg_config_home_git" Lénaïc Huard
2021-05-20 23:44       ` Đoàn Trần Công Danh
2021-05-20 22:13     ` [PATCH v3 2/4] maintenance: introduce ENABLE/DISABLE for code clarity Lénaïc Huard
2021-05-20 22:13     ` [PATCH v3 3/4] maintenance: `git maintenance run` learned `--scheduler=<scheduler>` Lénaïc Huard
2021-05-21  9:52       ` Bagas Sanjaya
2021-05-20 22:13     ` [PATCH v3 4/4] maintenance: optionally use systemd timers on Linux Lénaïc Huard
2021-05-21  9:59       ` Bagas Sanjaya
2021-05-21 16:59         ` Derrick Stolee
2021-05-22  6:57           ` Johannes Schindelin
2021-05-23 18:36             ` Felipe Contreras
2021-05-23 23:27               ` brian m. carlson
2021-05-24  1:18                 ` Felipe Contreras
2021-05-24  7:03                 ` Ævar Arnfjörð Bjarmason
2021-05-24 15:51                   ` Junio C Hamano
2021-05-25  1:50                     ` Johannes Schindelin
2021-05-25 11:13                       ` Felipe Contreras
2021-05-26 10:29                       ` CoC, inclusivity etc. (was "Re: [...] systemd timers on Linux") Ævar Arnfjörð Bjarmason
2021-05-26 16:05                         ` Felipe Contreras
2021-05-27 14:24                         ` Jeff King
2021-05-27 17:30                           ` Felipe Contreras
2021-05-27 23:58                           ` Junio C Hamano
2021-05-28 14:44                           ` Phillip Susi
2021-05-30 21:58                             ` Jeff King
2021-05-24 17:52                   ` [PATCH v3 4/4] maintenance: optionally use systemd timers on Linux Felipe Contreras
2021-05-24  7:15     ` [PATCH v4 0/4] add support for " Lénaïc Huard
2021-05-24  7:15       ` [PATCH v4 1/4] cache.h: Introduce a generic "xdg_config_home_for(…)" function Lénaïc Huard
2021-05-24  9:33         ` Phillip Wood
2021-05-24 12:23           ` Đoàn Trần Công Danh
2021-05-24  7:15       ` [PATCH v4 2/4] maintenance: introduce ENABLE/DISABLE for code clarity Lénaïc Huard
2021-05-24  9:41         ` Phillip Wood
2021-05-24 12:36           ` Đoàn Trần Công Danh
2021-05-25  7:18             ` Lénaïc Huard
2021-05-25  8:02               ` Junio C Hamano
2021-05-24  9:47         ` Ævar Arnfjörð Bjarmason
2021-05-24  7:15       ` [PATCH v4 3/4] maintenance: `git maintenance run` learned `--scheduler=<scheduler>` Lénaïc Huard
2021-05-24 10:12         ` Phillip Wood
2021-05-30  6:39           ` Lénaïc Huard
2021-05-30 10:16             ` Phillip Wood
2021-05-24  7:15       ` [PATCH v4 4/4] maintenance: add support for systemd timers on Linux Lénaïc Huard
2021-05-24  9:55         ` Ævar Arnfjörð Bjarmason
2021-05-24 16:39           ` Eric Sunshine
2021-05-24 18:08         ` Felipe Contreras
2021-05-26 10:26         ` Phillip Wood
2021-05-24  9:04       ` [PATCH v4 0/4] " Junio C Hamano
2021-06-08 13:39       ` Lénaïc Huard [this message]
2021-06-08 13:39         ` [PATCH v5 1/3] cache.h: Introduce a generic "xdg_config_home_for(…)" function Lénaïc Huard
2021-06-08 13:39         ` [PATCH v5 2/3] maintenance: `git maintenance run` learned `--scheduler=<scheduler>` Lénaïc Huard
2021-06-08 13:40         ` [PATCH v5 3/3] maintenance: add support for systemd timers on Linux Lénaïc Huard
2021-06-09  9:34           ` Jeff King
2021-06-09 15:01           ` Phillip Wood
2021-06-09  0:21         ` [PATCH v5 0/3] " Junio C Hamano
2021-06-09 14:54         ` Phillip Wood
2021-06-12 16:50         ` [PATCH v6 0/3] maintenance: " Lénaïc Huard
2021-06-12 16:50           ` [PATCH v6 1/3] cache.h: Introduce a generic "xdg_config_home_for(…)" function Lénaïc Huard
2021-06-12 16:50           ` [PATCH v6 2/3] maintenance: `git maintenance run` learned `--scheduler=<scheduler>` Lénaïc Huard
2021-06-14  4:36             ` Eric Sunshine
2021-06-16 18:12               ` Derrick Stolee
2021-06-17  4:11                 ` Eric Sunshine
2021-06-17 14:26               ` Phillip Wood
2021-07-02 15:04               ` Lénaïc Huard
2021-06-12 16:50           ` [PATCH v6 3/3] maintenance: add support for systemd timers on Linux Lénaïc Huard
2021-07-02 14:25           ` [PATCH v7 0/3] " Lénaïc Huard
2021-07-02 14:25             ` [PATCH v7 1/3] cache.h: Introduce a generic "xdg_config_home_for(…)" function Lénaïc Huard
2021-07-02 14:25             ` [PATCH v7 2/3] maintenance: `git maintenance run` learned `--scheduler=<scheduler>` Lénaïc Huard
2021-07-06 19:56               ` Ævar Arnfjörð Bjarmason
2021-07-06 20:52                 ` Junio C Hamano
2021-07-13  0:15                   ` Jeff King
2021-07-13  2:22                     ` Eric Sunshine
2021-07-13  3:56                       ` Jeff King
2021-07-13  5:17                         ` Eric Sunshine
2021-07-13  7:04                       ` Bagas Sanjaya
2021-07-06 21:18                 ` Felipe Contreras
2021-08-23 20:06                 ` Lénaïc Huard
2021-08-23 22:30                   ` Junio C Hamano
2021-07-02 14:25             ` [PATCH v7 3/3] maintenance: add support for systemd timers on Linux Lénaïc Huard
2021-07-06 20:03               ` Ævar Arnfjörð Bjarmason
2021-07-02 18:18             ` [PATCH v7 0/3] " Junio C Hamano
2021-07-06 13:18             ` Phillip Wood
2021-08-23 20:40             ` [PATCH v8 " Lénaïc Huard
2021-08-23 20:40               ` [PATCH v8 1/3] cache.h: Introduce a generic "xdg_config_home_for(…)" function Lénaïc Huard
2021-08-23 20:40               ` [PATCH v8 2/3] maintenance: `git maintenance run` learned `--scheduler=<scheduler>` Lénaïc Huard
2021-08-24 17:45                 ` Derrick Stolee
2021-08-23 20:40               ` [PATCH v8 3/3] maintenance: add support for systemd timers on Linux Lénaïc Huard
2021-08-24 17:45                 ` Derrick Stolee
2021-08-24 17:47               ` [PATCH v8 0/3] " Derrick Stolee
2021-08-27 21:02               ` [PATCH v9 " Lénaïc Huard
2021-08-27 21:02                 ` [PATCH v9 1/3] cache.h: Introduce a generic "xdg_config_home_for(…)" function Lénaïc Huard
2021-08-27 21:02                 ` [PATCH v9 2/3] maintenance: `git maintenance run` learned `--scheduler=<scheduler>` Lénaïc Huard
2021-08-27 23:54                   ` Ramsay Jones
2021-08-27 21:02                 ` [PATCH v9 3/3] maintenance: add support for systemd timers on Linux Lénaïc Huard
2021-09-04 20:54                 ` [PATCH v10 0/3] " Lénaïc Huard
2021-09-04 20:54                   ` [PATCH v10 1/3] cache.h: Introduce a generic "xdg_config_home_for(…)" function Lénaïc Huard
2021-09-04 20:54                   ` [PATCH v10 2/3] maintenance: `git maintenance run` learned `--scheduler=<scheduler>` Lénaïc Huard
2021-09-04 20:55                   ` [PATCH v10 3/3] maintenance: add support for systemd timers on Linux Lénaïc Huard
2021-09-07 16:48                   ` [PATCH v10 0/3] " Derrick Stolee
2021-09-08 11:44                     ` Derrick Stolee
2021-09-09  5:52                       ` Lénaïc Huard
2021-09-09 19:55                         ` Derrick Stolee
2021-09-27 12:50                           ` Ævar Arnfjörð Bjarmason
2021-09-27 21:44                             ` Lénaïc Huard
2021-08-17 17:22         ` [PATCH v5 0/3] " Derrick Stolee
2021-08-17 19:43           ` Phillip Wood
2021-08-17 20:29             ` Derrick Stolee
2021-08-18  5:56           ` Lénaïc Huard
2021-08-18 13:28             ` Derrick Stolee
2021-08-18 18:23               ` Junio C Hamano

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