Fix docs and add overlap test for negated per-file-ignores #10863
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BurntSushi
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Apr 10, 2024
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carljm
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Co-authored-by: Alex Waygood <Alex.Waygood@gmail.com>
This reverts commit 1bc4610.
carljm
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Going to go ahead and merge this without further review; we should get the doc fix out, and this is just a minor doc fix and a test that passes. This doesn't preclude revisiting the behavior of negated patterns, but that can be another PR. |
Glyphack
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Apr 12, 2024
…#10863) Refs astral-sh#3172 ## Summary Fix a typo in the docs example, and add a test for the case where a negative pattern and a positive pattern overlap. The behavior here is simple: patterns (positive or negative) are always additive if they hit (i.e. match for a positive pattern, don't match for a negated pattern). We never "un-ignore" previously-ignored rules based on a pattern (positive or negative) failing to hit. It's simple enough that I don't really see other cases we need to add tests for (the tests we have cover all branches in the ignores_from_path function that implements the core logic), but open to reviewer feedback. I also didn't end up changing the docs to explain this more, because I think they are accurate as written and don't wrongly imply any more complex behavior. Open to reviewer feedback on this as well! After some discussion, I think allowing negative patterns to un-ignore rules is too confusing and easy to get wrong; if we need that, we should add `per-file-selects` instead. ## Test Plan Test/docs only change; tests pass, docs render and look right. --------- Co-authored-by: Alex Waygood <Alex.Waygood@gmail.com>
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Refs #3172
Summary
Fix a typo in the docs example, and add a test for the case where a negative pattern and a positive pattern overlap.
The behavior here is simple: patterns (positive or negative) are always additive if they hit (i.e. match for a positive pattern, don't match for a negated pattern). We never "un-ignore" previously-ignored rules based on a pattern (positive or negative) failing to hit.
It's simple enough that I don't really see other cases we need to add tests for (the tests we have cover all branches in the ignores_from_path function that implements the core logic), but open to reviewer feedback.
I also didn't end up changing the docs to explain this more, because I think they are accurate as written and don't wrongly imply any more complex behavior. Open to reviewer feedback on this as well!
After some discussion, I think allowing negative patterns to un-ignore rules is too confusing and easy to get wrong; if we need that, we should add
per-file-selectsinstead.Test Plan
Test/docs only change; tests pass, docs render and look right.