[woutdenolf]

Part of ewoks-kit/ewoks#343. Merge this first; the ewoks side is ewoks-kit/ewoks#365.

• Move ewoks._requirements to ewokscore.requirements, with its tests.
  • Public API: ewokscore.requirements and ewokscore.requirements.environment (used by ewoks). All other submodules are private.
  • ewokscore does not know ewoks: add_requirements records the bootstrap distributions it is given, install_requirements adds the extra_distributions it is given.
  • The ewoks section (version and engine) of the requirements becomes bootstrap: {"distributions": {name: version}}.
• Tests: the home directory of the package managers is patched per test instead of per package.
  • Needed after the move: the session fixture testkernel of ewokscore installs a Jupyter kernel in the home directory. With pytest 8 (Python 3.8/3.9 jobs) the patched home was still active at the end of the session, so removing the kernel failed (KeyError: 'pytest_kernel'). ewoks has no such fixture.
• Tests: adding distributions runs with every package manager, also when they conflict with the requirements.
  • ensure_ewoks became the generic ensure_distributions; its old test could not detect lost version constraints and never ran with conda or pixi.
  • Adding to a project that does not pin its dependencies (uv, poetry, pixi) can change versions: this is now logged as a warning.
• Graph schema 1.4: the requirements graph attribute may be the dict that ewoks convert saves (package manager, its files, python, distributions), or the requirements.txt list as before.
  • Fixes ewoks lint, which rejected graphs saved by ewoks convert because schema 1.3 only allowed a list.
• CI: install uv, poetry, pixi and conda; the tests for those package managers are skipped without them.

🤖 Generated with Claude Code

[codecov]

Codecov Report

❌ Patch coverage is 83.81271% with 242 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/ewokscore/requirements/__init__.py	59.70%	54 Missing ⚠️
...e/requirements/_utils/metadata/from_python/_git.py	20.00%	36 Missing ⚠️
...quirements/_utils/metadata/from_python/__init__.py	60.93%	25 Missing ⚠️
.../ewokscore/requirements/_utils/requirements_txt.py	89.30%	23 Missing ⚠️
src/ewokscore/requirements/_utils/detect.py	73.75%	21 Missing ⚠️
src/ewokscore/requirements/_utils/base_manager.py	86.89%	19 Missing ⚠️
...kscore/requirements/_utils/metadata/last_resort.py	32.00%	17 Missing ⚠️
src/ewokscore/requirements/_uv.py	88.18%	13 Missing ⚠️
src/ewokscore/requirements/_poetry.py	91.07%	10 Missing ⚠️
src/ewokscore/requirements/_conda.py	94.89%	5 Missing ⚠️
... and 8 more

📢 Thoughts on this report? Let us know!