From: Elijah Newren <newren@gmail.com>
To: Jonathan Tan <jonathantanmy@google.com>
Cc: Git Mailing List <git@vger.kernel.org>,
Taylor Blau <me@ttaylorr.com>,
Emily Shaffer <emilyshaffer@google.com>,
Junio C Hamano <gitster@pobox.com>, Jeff King <peff@peff.net>
Subject: Re: [PATCH v3 3/5] submodule: refrain from filtering GIT_CONFIG_COUNT
Date: Thu, 10 Jun 2021 14:13:49 -0700 [thread overview]
Message-ID: <CABPp-BFpW7KLQGbe1kz5FNWABrTNaHOCZw3poXBMWQ9MP91GuQ@mail.gmail.com> (raw)
In-Reply-To: <e1a40108f42addf8a589c1d0ac4ed76fb525be9b.1623345496.git.jonathantanmy@google.com>
Adding Peff to cc as per comments about 89044baa8b ("submodule: stop
sanitizing config options", 2016-05-04) below.
On Thu, Jun 10, 2021 at 10:35 AM Jonathan Tan <jonathantanmy@google.com> wrote:
>
> 14111fc492 ("git: submodule honor -c credential.* from command line",
> 2016-03-01) taught Git to pass through the GIT_CONFIG_PARAMETERS
> environment variable when invoking a subprocess on behalf of a
> submodule. But when d8d77153ea ("config: allow specifying config entries
> via envvar pairs", 2021-01-15) introduced support for GIT_CONFIG_COUNT
> (and its associated GIT_CONFIG_KEY_? and GIT_CONFIG_VALUE_?), the
> subprocess mechanism wasn't updated to also pass through these
> variables.
>
> Since they are conceptually the same (d8d77153ea was written to address
> a shortcoming of GIT_CONFIG_PARAMETERS), update the submodule subprocess
> mechanism to also pass through GIT_CONFIG_COUNT.
>
> Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
> ---
> submodule.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/submodule.c b/submodule.c
> index 0b1d9c1dde..f09031e397 100644
> --- a/submodule.c
> +++ b/submodule.c
> @@ -489,7 +489,8 @@ static void prepare_submodule_repo_env_no_git_dir(struct strvec *out)
> const char * const *var;
>
> for (var = local_repo_env; *var; var++) {
> - if (strcmp(*var, CONFIG_DATA_ENVIRONMENT))
> + if (strcmp(*var, CONFIG_DATA_ENVIRONMENT) &&
> + strcmp(*var, CONFIG_COUNT_ENVIRONMENT))
> strvec_push(out, *var);
> }
> }
> --
> 2.32.0.rc1.229.g3e70b5a671-goog
I'm super confused. It appears that
prepare_submodule_repo_env_no_git_dir() is filtering out
"GIT_CONFIG_PARAMETERS" (CONFIG_DATA_ENVIRONMENT) and
"GIT_CONFIG_COUNT" (CONFIG_COUNT_ENVIRONMENT), using all environment
variables other than these ones. But the commit message talks about
adding an extra environment variable, rather than filtering another
out. I must be mis-reading something somewhere, but I'm struggling to
figure it out.
Digging around for a while led me to commit 89044baa8b ("submodule:
stop sanitizing config options", 2016-05-04), which suggests that the
passing of GIT_CONFIG_PARAMETERS is not done here but in
git-submodule.sh. It still didn't make it clear to me why it's
stripped out here, but something makes me thing that git-submodule.sh
should be affected by your change as well.
Also, from looking at the other commit messages you reference, it
appears GIT_CONFIG_PARAMETERS was just one big environment variable,
whereas GIT_CONFIG_COUNT is closely associated with 2*N other
environment variables...so shouldn't your loop (and perhaps also
git-submodule.sh) also be checking GIT_CONFIG_KEY_\d+ and
GIT_CONFIG_VALUE_\d+ ?
I've been looking at this patch longer than I care to admit and I
still feel like I don't have a clue what's going on.
next prev parent reply other threads:[~2021-06-10 21:14 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-01 21:34 [PATCH 0/4] First steps towards partial clone submodules Jonathan Tan
2021-06-01 21:34 ` [PATCH 1/4] promisor-remote: read partialClone config here Jonathan Tan
2021-06-04 19:56 ` Taylor Blau
2021-06-05 1:38 ` Jonathan Tan
2021-06-07 22:41 ` Emily Shaffer
2021-06-01 21:34 ` [PATCH 2/4] promisor-remote: support per-repository config Jonathan Tan
2021-06-04 20:09 ` Taylor Blau
2021-06-05 1:43 ` Jonathan Tan
2021-06-04 21:21 ` Elijah Newren
2021-06-05 1:54 ` Jonathan Tan
2021-06-08 0:48 ` Emily Shaffer
2021-06-01 21:34 ` [PATCH 3/4] run-command: move envvar-resetting function Jonathan Tan
2021-06-04 20:19 ` Taylor Blau
2021-06-05 1:57 ` Jonathan Tan
2021-06-08 0:54 ` Emily Shaffer
2021-06-01 21:34 ` [PATCH 4/4] promisor-remote: teach lazy-fetch in any repo Jonathan Tan
2021-06-04 21:25 ` Taylor Blau
2021-06-05 2:11 ` Jonathan Tan
2021-06-04 21:35 ` Elijah Newren
2021-06-05 2:16 ` Jonathan Tan
2021-06-05 3:48 ` Elijah Newren
2021-06-05 0:22 ` Elijah Newren
2021-06-05 2:16 ` Jonathan Tan
2021-06-08 1:41 ` Emily Shaffer
2021-06-09 4:52 ` Jonathan Tan
2021-06-08 0:25 ` [PATCH v2 0/4] First steps towards partial clone submodules Jonathan Tan
2021-06-08 0:25 ` [PATCH v2 1/4] promisor-remote: read partialClone config here Jonathan Tan
2021-06-08 3:18 ` Junio C Hamano
2021-06-09 4:26 ` Jonathan Tan
2021-06-09 9:30 ` Junio C Hamano
2021-06-09 17:16 ` Jonathan Tan
2021-06-08 17:28 ` Elijah Newren
2021-06-09 4:44 ` Jonathan Tan
2021-06-09 5:34 ` Elijah Newren
2021-06-10 17:25 ` Jonathan Tan
2021-06-08 0:25 ` [PATCH v2 2/4] promisor-remote: support per-repository config Jonathan Tan
2021-06-08 3:30 ` Junio C Hamano
2021-06-09 4:29 ` Jonathan Tan
2021-06-08 0:25 ` [PATCH v2 3/4] run-command: move envvar-resetting function Jonathan Tan
2021-06-08 4:14 ` Junio C Hamano
2021-06-09 4:32 ` Jonathan Tan
2021-06-09 5:28 ` Junio C Hamano
2021-06-09 18:15 ` Jonathan Tan
2021-06-08 0:25 ` [PATCH v2 4/4] promisor-remote: teach lazy-fetch in any repo Jonathan Tan
2021-06-08 4:33 ` Junio C Hamano
2021-06-09 4:39 ` Jonathan Tan
2021-06-09 5:33 ` Junio C Hamano
2021-06-09 18:20 ` Jonathan Tan
2021-06-10 1:26 ` Junio C Hamano
2021-06-08 17:42 ` Elijah Newren
2021-06-09 4:46 ` Jonathan Tan
2021-06-08 17:50 ` [PATCH v2 0/4] First steps towards partial clone submodules Elijah Newren
2021-06-08 23:42 ` Junio C Hamano
2021-06-09 0:07 ` Elijah Newren
2021-06-09 0:18 ` Junio C Hamano
2021-06-09 4:58 ` Jonathan Tan
2021-06-08 1:44 ` [PATCH " Emily Shaffer
2021-06-10 17:35 ` [PATCH v3 0/5] " Jonathan Tan
2021-06-10 17:35 ` [PATCH v3 1/5] repository: move global r_f_p_c to repo struct Jonathan Tan
2021-06-10 20:47 ` Elijah Newren
2021-06-10 17:35 ` [PATCH v3 2/5] promisor-remote: support per-repository config Jonathan Tan
2021-06-10 17:35 ` [PATCH v3 3/5] submodule: refrain from filtering GIT_CONFIG_COUNT Jonathan Tan
2021-06-10 21:13 ` Elijah Newren [this message]
2021-06-10 21:51 ` Jeff King
2021-06-11 17:02 ` Jonathan Tan
2021-06-10 17:35 ` [PATCH v3 4/5] run-command: refactor subprocess env preparation Jonathan Tan
2021-06-10 21:21 ` Elijah Newren
2021-06-10 17:35 ` [PATCH v3 5/5] promisor-remote: teach lazy-fetch in any repo Jonathan Tan
2021-06-10 21:29 ` [PATCH v3 0/5] First steps towards partial clone submodules Elijah Newren
2021-06-15 21:22 ` Elijah Newren
2021-06-17 17:13 ` [PATCH v4 " Jonathan Tan
2021-06-17 17:13 ` [PATCH v4 1/5] repository: move global r_f_p_c to repo struct Jonathan Tan
2021-06-17 17:13 ` [PATCH v4 2/5] promisor-remote: support per-repository config Jonathan Tan
2021-06-17 17:13 ` [PATCH v4 3/5] submodule: refrain from filtering GIT_CONFIG_COUNT Jonathan Tan
2021-06-17 17:13 ` [PATCH v4 4/5] run-command: refactor subprocess env preparation Jonathan Tan
2021-06-17 17:13 ` [PATCH v4 5/5] promisor-remote: teach lazy-fetch in any repo Jonathan Tan
2021-06-19 20:01 ` [PATCH v4 0/5] First steps towards partial clone submodules Elijah Newren
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