Use CI/CD build automation to stand up dependent sites when they push changes

[lmmx]

• Figure out CI/CD pipeline triggers across interacting repos
• Is it possible to build site using an open source generator library using GitHub Actions from multiple private source repos hosted on GitLab Pages when any one of the sources pushes?
• Would this be better to run entirely on GitLab if so?
  • (could simply clone this repo there)

[lmmx]

The guidance on GitLab (in: Settings ⇢ CI/CD ⇢ Pipeline triggers) is to incorporate a POST request to trigger the pipeline at the end of a build script of a dependency project

curl -X POST \
     -F token=TOKEN \
     -F "ref=REF_NAME" \
     -F "variables[RUN_NIGHTLY_BUILD]=true" \
     https://gitlab.com/api/v4/projects/project_id_goes_here/trigger/pipeline

For GitHub, the equivalent endpoint to target would need to be created, specifically one of the per-repo hooks

As an alternative to using GitHub for this, you can use the importer to mirror the GitHub repo to GitLab, which will (using the web UI with the "repo" scope) automatically create a webhook that keeps GitLab in sync.

• You can then trigger a pipeline on the GitLab mirror repo rather than having to interact with GitHub.
• Note that if the purpose here is to update a git repo for the dependency site, this can be done entirely in the build script of the repo that pushes...
  • Maybe there's actually no need to update all websites if we're triggering this on the basis of a single site change, it was just convenient to do so when setting up multiple. It is not expected to need this when editing a single site at a time...

Not clear if this needs a pipeline triggering at all: it can be done by simply pip installing the remote git repo for quill within the already-running pipeline of the site build script triggered on pushing to the dependency site (e.g. poll)

It would be possible to trigger a second build script via webhooks but surely this would be slower...