How to make resources from repository accessible in exams/homeworks

[luspi]

In various homework problems and quiz/exam questions we want to use resources from the git repository (like images for plots, or some data files). If we include in the yaml file something like [link](repo:path/to/data), then we get a 403 Forbidden error when trying to access that resource from the flow.

What setting do we need to set to allow access to certain data from the underlying repository?

[inducer]

You need a file .attributes.yml in the same folder as the file you're looking to make accessible, formatted like this:

unenrolled:
- "*.png"
- "*.jpeg"

For each role (unenrolled, student, ta, instructor), this provides glob patterns of files that are accessible. "More privileged" roles inherit the access from the "less privileged" ones, by default, via this mechanism:

relate/course/models.py

Lines 664 to 667 in c2b196c

	rpm(role=role, permission=pp.access_files_for,
	argument="student").save()
	add_unenrolled_permissions(role)

(i.e. you can change this by configuring roles)

This is documented here: https://documen.tician.de/relate/content.html#custom-urls

[luspi]

Thanks, this worked!