Why is line-length not propagating from top-most pyproject.toml?

[jamesbraza]

I have a pyproject.toml in the repo root:

# pyproject.toml

[tool.ruff]

line-length = 97

I have a test subdirectory that has its own pyproject.toml

# test/pyproject.toml

[tool.ruff]

ignore = [
    "S101",  # assert gets used in tests
]

For some reason, the updated line-length isn't propagating into the test directory. The test directory is still using 88 as its length.

Might this be a bug, or am I missing something?

[dhruvmanila]

You've to explicitly specify to extend the current configuration from another file using extend = 'path/to/pyproject.toml'.