nox-poetry does not respect the new dependency groups from Poetry

[paw-lu]

Poetry has now deprecated --dev, and instead uses different named groups via --group. Eg:

% poetry add flask
% poetry add --group foo black

Since nox-poetry currently uses something like poetry export --dev --format=requirements.txt, this does not include dependencies defined in other groups—like group foo above. (Worth noting that this still works for the dev group though.)

There currently does not seem to be a way to force poetry export to export all dependencies. See:

• (🎁) poetry export should have an --all option python-poetry/poetry-plugin-export#45
• Support --all-extras flag in poetry export python-poetry/poetry-plugin-export#153
• Feature/export all optionals python-poetry/poetry#2548

[paw-lu]

This doesn't solve the above problem completely, but I wonder if it makes sense to add an install_groups to Session? It should take multiple values since Poetry does as well.

eg:

def bar(session: Session) -> None:
    """Install depenencies from group 'foo' and 'baz'."""
    session.install_groups("foo", "baz")

% nox --session bar
poetry export --format=requirements.txt --with foo --with baz --without-hashes
python -m pip install --requirements=.nox/path/to/requirements.txt

[johnthagen]

Related/duplicate of:

• Support installing Poetry dependency groups #663

See also:

• Initial support for installing Poetry dependency groups #895

[cjolowicz]

I agree that the constraints file should include all dependency groups. We could handle this similarly to how we handle extras here:

nox-poetry/src/nox_poetry/poetry.py

Line 86 in 5772b66

*[f"--extras={extra}" for extra in self.config.extras],