From: Jonathan Tan <jonathantanmy@google.com>
To: emilyshaffer@google.com
Cc: git@vger.kernel.org, Jonathan Tan <jonathantanmy@google.com>
Subject: Re: [PATCH v7 15/17] hook: provide stdin by string_list or callback
Date: Sun, 31 Jan 2021 23:04:48 -0800 [thread overview]
Message-ID: <20210201070448.1325624-1-jonathantanmy@google.com> (raw)
In-Reply-To: <20201222000220.1491091-16-emilyshaffer@google.com>
> In cases where a hook requires only a small amount of information via
> stdin, it should be simple for users to provide a string_list alone. But
> in more complicated cases where the stdin is too large to hold in
> memory, let's provide a callback the users can populate line after line
> with instead.
[snip]
> diff --git a/hook.h b/hook.h
> index 8a7542610c..0ac83fa7ca 100644
> --- a/hook.h
> +++ b/hook.h
> @@ -2,6 +2,7 @@
> #include "list.h"
> #include "strbuf.h"
> #include "strvec.h"
> +#include "run-command.h"
>
> struct hook
> {
> @@ -14,6 +15,12 @@ struct hook
> /* The literal command to run. */
> struct strbuf command;
> int from_hookdir;
> +
> + /*
> + * Use this to keep state for your feed_pipe_fn if you are using
> + * run_hooks_opt.feed_pipe. Otherwise, do not touch it.
> + */
> + void *feed_pipe_cb_data;
When would we need per-hook state? I see in patch 14 that you give each
running process little by little (in pp_buffer_stdin()), perhaps so that
each hook can make progress at roughly the same pace, but I don't think
we can expect all hooks to work the same, so I don't think it's worth
complicating the design for all that.
> };
>
> /*
> @@ -57,12 +64,24 @@ struct run_hooks_opt
>
> /* Path to file which should be piped to stdin for each hook */
> const char *path_to_stdin;
> + /* Pipe each string to stdin, separated by newlines */
> + struct string_list str_stdin;
> + /*
> + * Callback and state pointer to ask for more content to pipe to stdin.
> + * Will be called repeatedly, for each hook. See
> + * hook.c:pipe_from_stdin() for an example. Keep per-hook state in
> + * hook.feed_pipe_cb_data (per process). Keep initialization context in
> + * feed_pipe_ctx (shared by all processes).
> + */
> + feed_pipe_fn feed_pipe;
> + void *feed_pipe_ctx;
Instead of 3 fields, I think 2 suffice - the function and the data
(called "ctx" here). We can supply a function that treats the data as a
string_list.
next prev parent reply other threads:[~2021-02-01 7:08 UTC|newest]
Thread overview: 170+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-21 18:54 [PATCH v2 0/4] propose config-based hooks Emily Shaffer
2020-05-21 18:54 ` [PATCH v2 1/4] doc: propose hooks managed by the config Emily Shaffer
2020-05-22 10:13 ` Phillip Wood
2020-06-09 20:26 ` Emily Shaffer
2020-05-21 18:54 ` [PATCH v2 2/4] hook: scaffolding for git-hook subcommand Emily Shaffer
2020-05-21 18:54 ` [PATCH v2 3/4] hook: add list command Emily Shaffer
2020-05-22 10:27 ` Phillip Wood
2020-06-09 21:49 ` Emily Shaffer
2020-08-17 13:36 ` Phillip Wood
2020-05-24 23:00 ` Johannes Schindelin
2020-05-27 23:37 ` Emily Shaffer
2020-05-21 18:54 ` [PATCH v2 4/4] hook: add --porcelain to " Emily Shaffer
2020-05-24 23:00 ` Johannes Schindelin
2020-05-25 0:29 ` Johannes Schindelin
2020-07-28 22:24 ` [PATCH v3 0/6] propose config-based hooks Emily Shaffer
2020-07-28 22:24 ` [PATCH v3 1/6] doc: propose hooks managed by the config Emily Shaffer
2020-07-28 22:24 ` [PATCH v3 2/6] hook: scaffolding for git-hook subcommand Emily Shaffer
2020-07-28 22:24 ` [PATCH v3 3/6] hook: add list command Emily Shaffer
2020-07-28 22:24 ` [PATCH v3 4/6] hook: add --porcelain to " Emily Shaffer
2020-07-28 22:24 ` [RFC PATCH v3 5/6] parse-options: parse into argv_array Emily Shaffer
2020-07-29 19:33 ` Junio C Hamano
2020-07-30 23:41 ` Junio C Hamano
2020-07-28 22:24 ` [RFC PATCH v3 6/6] hook: add 'run' subcommand Emily Shaffer
2020-09-09 0:49 ` [PATCH v4 0/9] propose config-based hooks Emily Shaffer
2020-09-09 0:49 ` [PATCH v4 1/9] doc: propose hooks managed by the config Emily Shaffer
2020-09-23 22:59 ` Jonathan Tan
2020-09-24 21:54 ` Emily Shaffer
2020-10-07 9:23 ` Ævar Arnfjörð Bjarmason
2020-10-22 0:58 ` Emily Shaffer
2020-10-23 19:10 ` Ævar Arnfjörð Bjarmason
2020-10-29 15:38 ` Emily Shaffer
2020-10-29 20:04 ` Ævar Arnfjörð Bjarmason
2020-09-09 0:49 ` [PATCH v4 2/9] hook: scaffolding for git-hook subcommand Emily Shaffer
2020-10-05 23:24 ` Jonathan Nieder
2020-10-06 19:06 ` Emily Shaffer
2020-09-09 0:49 ` [PATCH v4 3/9] hook: add list command Emily Shaffer
2020-09-11 13:27 ` Phillip Wood
2020-09-11 16:51 ` Emily Shaffer
2020-09-23 23:04 ` Jonathan Tan
2020-10-06 20:46 ` Emily Shaffer
2020-09-27 19:23 ` Martin Ågren
2020-10-06 20:20 ` Emily Shaffer
2020-10-05 23:27 ` Jonathan Nieder
2020-09-09 0:49 ` [PATCH v4 4/9] hook: add --porcelain to " Emily Shaffer
2020-09-28 19:29 ` Josh Steadmon
2020-09-09 0:49 ` [PATCH v4 5/9] parse-options: parse into strvec Emily Shaffer
2020-10-05 23:30 ` Jonathan Nieder
2020-10-06 4:49 ` Junio C Hamano
2020-09-09 0:49 ` [PATCH v4 6/9] hook: add 'run' subcommand Emily Shaffer
2020-09-11 13:30 ` Phillip Wood
2020-09-28 19:29 ` Josh Steadmon
2020-10-05 23:39 ` Jonathan Nieder
2020-10-06 22:57 ` Emily Shaffer
2020-09-09 0:49 ` [PATCH v4 7/9] hook: replace run-command.h:find_hook Emily Shaffer
2020-09-09 20:32 ` Junio C Hamano
2020-09-10 19:08 ` Emily Shaffer
2020-09-23 23:20 ` Jonathan Tan
2020-10-05 23:42 ` Jonathan Nieder
2020-09-09 0:49 ` [PATCH v4 8/9] commit: use config-based hooks Emily Shaffer
2020-09-10 13:50 ` Phillip Wood
2020-09-10 22:21 ` Junio C Hamano
2020-09-23 23:47 ` Jonathan Tan
2020-10-05 21:27 ` Emily Shaffer
2020-10-05 23:48 ` Jonathan Nieder
2020-10-06 19:08 ` Emily Shaffer
2020-09-09 0:49 ` [PATCH v4 9/9] run_commit_hook: take strvec instead of varargs Emily Shaffer
2020-09-10 14:16 ` Phillip Wood
2020-09-11 13:20 ` Phillip Wood
2020-09-09 21:04 ` [PATCH v4 0/9] propose config-based hooks Junio C Hamano
2020-10-14 23:24 ` [PATCH v5 0/8] propose config-based hooks (part I) Emily Shaffer
2020-10-14 23:24 ` [PATCH v5 1/8] doc: propose hooks managed by the config Emily Shaffer
2020-10-15 16:31 ` Ævar Arnfjörð Bjarmason
2020-10-16 17:29 ` Junio C Hamano
2020-10-21 23:37 ` Emily Shaffer
2020-10-14 23:24 ` [PATCH v5 2/8] hook: scaffolding for git-hook subcommand Emily Shaffer
2020-10-14 23:24 ` [PATCH v5 3/8] hook: add list command Emily Shaffer
2020-10-14 23:24 ` [PATCH v5 4/8] hook: include hookdir hook in list Emily Shaffer
2020-10-14 23:24 ` [PATCH v5 5/8] hook: implement hookcmd.<name>.skip Emily Shaffer
2020-10-14 23:24 ` [PATCH v5 6/8] parse-options: parse into strvec Emily Shaffer
2020-10-14 23:24 ` [PATCH v5 7/8] hook: add 'run' subcommand Emily Shaffer
2020-10-14 23:24 ` [PATCH v5 8/8] hook: replace find_hook() with hook_exists() Emily Shaffer
2020-12-05 1:45 ` [PATCH v6 00/17] propose config-based hooks (part I) Emily Shaffer
2020-12-05 1:45 ` [PATCH 01/17] doc: propose hooks managed by the config Emily Shaffer
2020-12-05 1:45 ` [PATCH 02/17] hook: scaffolding for git-hook subcommand Emily Shaffer
2020-12-05 1:45 ` [PATCH 03/17] hook: add list command Emily Shaffer
2020-12-05 1:45 ` [PATCH 04/17] hook: include hookdir hook in list Emily Shaffer
2020-12-05 1:45 ` [PATCH 05/17] hook: respect hook.runHookDir Emily Shaffer
2020-12-05 1:45 ` [PATCH 06/17] hook: implement hookcmd.<name>.skip Emily Shaffer
2020-12-05 1:45 ` [PATCH 07/17] parse-options: parse into strvec Emily Shaffer
2020-12-05 1:45 ` [PATCH 08/17] hook: add 'run' subcommand Emily Shaffer
2020-12-11 10:15 ` Phillip Wood
2020-12-15 21:41 ` Emily Shaffer
2020-12-05 1:45 ` [PATCH 09/17] hook: replace find_hook() with hook_exists() Emily Shaffer
2020-12-05 1:46 ` [PATCH 10/17] hook: support passing stdin to hooks Emily Shaffer
2020-12-05 1:46 ` [PATCH 11/17] run-command: allow stdin for run_processes_parallel Emily Shaffer
2020-12-05 1:46 ` [PATCH 12/17] hook: allow parallel hook execution Emily Shaffer
2020-12-05 1:46 ` [PATCH 13/17] hook: allow specifying working directory for hooks Emily Shaffer
2020-12-05 1:46 ` [PATCH 14/17] run-command: add stdin callback for parallelization Emily Shaffer
2020-12-05 1:46 ` [PATCH 15/17] hook: provide stdin by string_list or callback Emily Shaffer
2020-12-08 21:09 ` SZEDER Gábor
2020-12-08 22:11 ` Emily Shaffer
2020-12-05 1:46 ` [PATCH 16/17] run-command: allow capturing of collated output Emily Shaffer
2020-12-05 1:46 ` [PATCH 17/17] hooks: allow callers to capture output Emily Shaffer
2020-12-16 0:34 ` [PATCH v6 00/17] propose config-based hooks (part I) Josh Steadmon
2020-12-16 0:56 ` Junio C Hamano
2020-12-16 20:16 ` Emily Shaffer
2020-12-16 23:32 ` Junio C Hamano
2020-12-18 2:07 ` Emily Shaffer
2020-12-18 5:29 ` Junio C Hamano
2020-12-22 0:02 ` [PATCH v7 " Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 01/17] doc: propose hooks managed by the config Emily Shaffer
2021-01-23 15:38 ` Ævar Arnfjörð Bjarmason
2021-01-29 23:52 ` Emily Shaffer
2021-02-01 22:11 ` Junio C Hamano
2021-03-10 19:30 ` Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 02/17] hook: scaffolding for git-hook subcommand Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 03/17] hook: add list command Emily Shaffer
2021-01-31 3:10 ` Jonathan Tan
2021-02-09 21:06 ` Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 04/17] hook: include hookdir hook in list Emily Shaffer
2021-01-31 3:20 ` Jonathan Tan
2021-02-09 22:05 ` Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 05/17] hook: respect hook.runHookDir Emily Shaffer
2021-01-31 3:35 ` Jonathan Tan
2021-02-09 22:31 ` Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 06/17] hook: implement hookcmd.<name>.skip Emily Shaffer
2021-01-31 3:40 ` Jonathan Tan
2021-02-09 22:57 ` Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 07/17] parse-options: parse into strvec Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 08/17] hook: add 'run' subcommand Emily Shaffer
2021-01-31 4:22 ` Jonathan Tan
2021-02-11 22:44 ` Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 09/17] hook: replace find_hook() with hook_exists() Emily Shaffer
2021-01-31 4:39 ` Jonathan Tan
2021-02-12 22:15 ` Emily Shaffer
2021-02-18 22:23 ` Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 10/17] hook: support passing stdin to hooks Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 11/17] run-command: allow stdin for run_processes_parallel Emily Shaffer
2021-02-01 5:38 ` Jonathan Tan
2021-02-19 20:23 ` Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 12/17] hook: allow parallel hook execution Emily Shaffer
2021-02-01 6:04 ` Jonathan Tan
2021-02-22 21:46 ` Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 13/17] hook: allow specifying working directory for hooks Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 14/17] run-command: add stdin callback for parallelization Emily Shaffer
2021-02-01 6:51 ` Jonathan Tan
2021-02-22 23:38 ` Emily Shaffer
2021-02-23 19:33 ` Jonathan Tan
2021-03-10 18:24 ` Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 15/17] hook: provide stdin by string_list or callback Emily Shaffer
2021-02-01 7:04 ` Jonathan Tan [this message]
2021-02-23 19:52 ` Emily Shaffer
2021-02-25 20:56 ` Jonathan Tan
2021-03-02 1:47 ` Emily Shaffer
2021-03-02 23:33 ` Jonathan Tan
2020-12-22 0:02 ` [PATCH v7 16/17] run-command: allow capturing of collated output Emily Shaffer
2020-12-22 0:02 ` [PATCH v7 17/17] hooks: allow callers to capture output Emily Shaffer
2020-12-22 2:11 ` [PATCH v7 00/17] propose config-based hooks (part I) Junio C Hamano
2020-12-28 18:34 ` Emily Shaffer
2020-12-28 22:50 ` Junio C Hamano
2020-12-28 22:37 ` [PATCH v3 18/17] doc: make git-hook.txt point of truth Emily Shaffer
2020-12-28 22:39 ` Emily Shaffer
2021-01-29 23:59 ` [PATCH v7 00/17] propose config-based hooks (part I) Emily Shaffer
2021-02-16 19:46 ` Josh Steadmon
2021-02-16 22:47 ` Junio C Hamano
2021-02-17 21:21 ` Josh Steadmon
2021-02-17 23:07 ` Junio C Hamano
2021-02-25 19:50 ` Junio C Hamano
2021-03-01 21:51 ` Emily Shaffer
2021-03-01 22:19 ` Junio C Hamano
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