Files of submodule are not available for workflow

[Tom-van-Woudenberg]

Hi @CasparJungbacker, @severinbratus , @iuri Rocha (will send a message manually)

It seems the files of the submodule are not available for the workflow, see: https://github.com/TeachBooks/Nested-Books/actions/runs/8717988266/job/23914289751#step:6:40

I think this is because the files aren't actually there in the repository (it's just a link): . If I do the build locally the files are there.

I think the answer might be here: but I'm losing track of all the terms (both for GitHub and GitLab but with different syntax): https://docs.gitlab.com/ee/ci/git_submodules.html. Requiring [GIT_SUBMODULE_FORCE_HTTPS](https://docs.gitlab.com/ee/ci/runners/configure_runners.html#rewrite-submodule-urls-to-https) and GIT_SUBMODULE_STRATEGY: recursive

Same happens on the GitLab workflow, https://gitlab.tudelft.nl/interactivetextbooks-citg/jupyter-book-manual/-/tree/main/book/external?ref_type=heads the nested-book repository which is referenced to in the TOC doesn't show up online (although it does show up in a local build)

[Tom-van-Woudenberg]

Iuri fixed this on GitLab with the following line:
https://gitlab.tudelft.nl/interactivetextbooks-citg/emml/-/blob/main/.gitlab-ci.yml?ref_type=heads#L11

[Tom-van-Woudenberg]

Fix is there for GitLab in the jupyter book manual :)

[Tom-van-Woudenberg]

Solved with TeachBooks/deploy-book-workflow#4