Re: 'git submodule update' ignores [http] config

[Jonathon Reinhart <jonathon.reinhart@gmail.com>]

Thanks Jonathan.

The confirmation that the super-project config does not apply to the
submodules is what I was really looking for. We'll go from here.

This is a bit complicated, because this config is all generated
dynamically by the GitLab CI Runner when it is setting up a build job.
(See the linked issue in my first email for the gory details).

Thank you,
Jonathon
>
> +cc: Stefan, who has been looking at fetch --recurse-submodules recently
> Hi,
>
> Jonathon Reinhart wrote:
>
> > I've narrowed it down to an observation that the [http] config seems
> > to be ignored by 'git submodule update'. Shouldn't those options be
> > respected by submodules?
> >
> > Given a .git/config file like this:
> >
> > ------------------------------------------------------------------------
> > [fetch]
> >     recurseSubmodules = false
> > [http "https://gitlab.exmaple.com"]
> >     sslCAInfo = C:\\Users\\gitlab-runner\\builds\\deadbeef\\0\\somegroup\\someproj.git\\CA_SERVER_TLS_CA_FILE
> [...]
> > C:\Users\jreinhart\testrepo>set GIT_CURL_VERBOSE=1
> > C:\Users\jreinhart\testrepo>git fetch
> [...]
> > *   CAfile: C:\Users\gitlab-runner\builds\deadbeef\0\somegroup\someproj.git\CA_SERVER_TLS_CA_FILE
> [...]
> > C:\Users\jreinhart\testrepo>git checkout master
> > C:\Users\jreinhart\testrepo>git submodule update --init
> [...]
> > *   CAfile: C:/Program Files/Git/mingw64/ssl/certs/ca-bundle.crt
> [...]
> > Note that the CAfile reverted to its default instead of using the same
> > one from the `git fetch`.
>
> Interesting.
>
> The context is that "git submodule update" is simply running commands
> like "git fetch" inside the submodules, and the repository-local
> config of the superproject does not apply there.
>
> In the long run, commands like "git fetch --recurse-submodules" may
> chaange to use a single process.  It's possible that some of the
> repository-local configuration of the superproject would apply at that
> point, though the inconsistency would be confusing, so probably not
> these particular settings.  Anyway, that's a faraway future; today,
> "git fetch --recurse-submodules" is also running "git fetch" commands
> inside the submodules, and the repository-local config of the
> superproject does not apply there.
>
> Would it work for you to put this configuration in the global config
> file ("git config --global --edit")?  That way, it would be used by
> all repositories.  If you want it only to apply within the testrepo
> directory, you can use conditional includes --- something like:
>
>   in $HOME/.git/config/testrepo-ca:
>
>   [http "https://gitlab.example.com"]
>         sslCAInfo = ...
>
>   in $HOME/.git/config/git:
>
>   [includeIf "gitdir/i:~/testrepo/**"]
>         path = testrepo-ca
>
> Thanks and hope that helps,
> Jonathan