Test CI from fork

[2shady4u]

Test to see if I can trigger CI with secrets from my fork

[bitbrain]

Reading this thread https://git.luolix.topmunity/t/make-secrets-available-to-builds-of-forks/16166/34 other people seem to have trouble doing the same. Do we have any example on this project where someone raised a PR from a fork and it was built successfully?

[bitbrain]

Ah yes, this one #77

[2shady4u]

Ah yes, this one #77

Yeah, but that's because we were still using pull_request_target at that time.
Recently we switched to pull_request in all_builds.yml (#89) and after that builds don't succeed any longer.
This change was done such that PR are correctly tested.
Before that the CI of a PR ran on the latest master commit and NOT on the PR's commit which destroyed the entire purpose of having CI in a PR at all 🤷

We'll maybe have to implement something like this to fix this issue:
https://github.com/imjohnbo/ok-to-test

I currently dont see any other solutions to this problem :/

[bitbrain]

I am wondering: couldn't we do some trickery by creating a branch off master with the same name as the fork branch, then merging the changes from the fork branch into this repository and then simply run the build/test on that branch (which belongs to this repo) so it can use the secrets from this repo, not from the forks? We would just need to ensure that branches are cleaned up properly after merging, also conflicting remote branch names from different forks might cause weirdness.

[bitbrain]

I created #95 to track this issue.