djehuty 26.3

The 4TU.ResearchData and Nikhef data repository system

djehuty

This Python package provides the repository system for 4TU.ResearchData and Nikhef.

Security

To report a vulnerability, please see SECURITY.md.

Development environment

Prerequisites

• Git
• uv
• Docker (with Compose)
• just

Getting started

git clone https://github.com/4TUResearchData/djehuty.git
cd djehuty/

Running the development environment

To spin up a fully working local instance, run:

just dev

This builds and starts Docker containers for djehuty and Virtuoso (SPARQL store). On first run, the database is automatically initialized with categories, licences, and a dev account with full admin privileges — no extra setup needed.

Once running:

• Djehuty: http://localhost:8080 (auto-login, no auth setup needed)
• Virtuoso SPARQL: http://localhost:8890/sparql (useful for troubleshooting)

Edit any Python file under src/ and the server reloads automatically.

To start the development environment with a Virtuoso database backup (e.g. to test against specific production data):

just db_backup=path/to/prod-2025-10-09_#1.bp dev

Point db_backup at any one of the backup files. All siblings sharing the same prefix in that directory are applied in order, so a full backup plus its incrementals (e.g. prod-2025-10-09_#1.bp, …_#2.bp, …_#3.bp) are restored together.

To stop and remove the development environment, run just clean. To see all available commands, run just --list.

Running in production

Djehuty needs a SPARQL 1.1 endpoint such as Virtuoso OSE or Jena Fuseki to store its state.

Copy the example configuration and adjust it for your environment:

cp etc/djehuty/djehuty-example-config.xml djehuty.xml

JSON is also supported and recommended for new deployments (see djehuty-example-config.json); pass it the same way with --config-file djehuty.json.

First run

Upon first run, djehuty needs to initialize the database with categories, licences and accounts. To do so, pass the --initialize option to the djehuty web command:

djehuty web --initialize --config-file djehuty.xml

Subsequent runs

After the database has been initialized, you can remove the --initialize option:

djehuty web --config-file=djehuty.xml

Running the tests

The project includes an end-to-end test suite built with Playwright and pytest. Tests run against a live djehuty + Virtuoso stack seeded with test data — all in containers, so no host Python or browser setup is required.

just test

That single command builds the test image (with Playwright and chromium), brings up Virtuoso and djehuty, loads the SPARQL permissions, runs --initialize, applies the seed dataset, and runs the suite inside the docker network. Coverage data lands in docker/coverage/; failure screenshots in docker/test-results/.

Filter the run with any pytest argument:

just test -m smoke              # one marker
just test -k test_homepage      # by keyword
just test tests/test_auth.py    # specific file

Marker isolation

CI runs each marker (smoke, auth, dataset, admin, embargo, citation, versioning, …) in its own job with a fresh stack, so a test never sees data left over from another marker. just test runs everything against one shared stack, which is faster but means a few state-sensitive tests can fail locally that pass in CI. When that happens, run the affected marker on its own:

just clean   # drop volumes for a truly fresh stack
just test -m citation

CI

Tests run automatically on every push via GitHub Actions. Each runner in the matrix invokes just test -m <marker> against the same compose stack used locally, so a green just test on your laptop reproduces what CI sees. Screenshots are captured on failure and uploaded as artifacts; coverage from each shard is combined into a single report.

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Contact information

• Maintainers: [e-mail]
• Security issues: [e-mail]