From ec07a0f885b63c227e7e117af38e6b51ca789ebe Mon Sep 17 00:00:00 2001
From: GiGaGon <107241144+MeGaGiGaGon@users.noreply.github.com>
Date: Mon, 23 Jun 2025 06:22:00 -0700
Subject: [PATCH] [`flake8-use-pathlib`] Add fix safety section to `PTH201`
 (#18837)

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## Summary

<!-- What's the purpose of the change? What does it do, and why? -->

Part of #15584

This adds a `Fix safety` section to [path-constructor-current-directory
(PTH201)](https://docs.astral.sh/ruff/rules/path-constructor-current-directory/#path-constructor-current-directory-pth201)

I could not track down the original PR as this rule is so old it has
gone through several large ruff refactors.
The unsafety is determined here:

https://github.com/astral-sh/ruff/blob/d9266284df170cd70908761b5d5ae45b25523a40/crates/ruff_linter/src/rules/flake8_use_pathlib/rules/path_constructor_current_directory.rs#L55-L59
Unsafe code example:
[playground](https://play.ruff.rs/76da532a-c7ad-4ef9-bba3-4626296e5317)
```py
from pathlib import Path
Path(#
    "."#
)
```

## Test Plan

<!-- How was it tested? -->

N/A, no tests/functionality affected
---
 .../rules/path_constructor_current_directory.rs               | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/crates/ruff_linter/src/rules/flake8_use_pathlib/rules/path_constructor_current_directory.rs b/crates/ruff_linter/src/rules/flake8_use_pathlib/rules/path_constructor_current_directory.rs
index 896ecba970..f8d8830a59 100644
--- a/crates/ruff_linter/src/rules/flake8_use_pathlib/rules/path_constructor_current_directory.rs
+++ b/crates/ruff_linter/src/rules/flake8_use_pathlib/rules/path_constructor_current_directory.rs
@@ -33,6 +33,10 @@ use crate::{AlwaysFixableViolation, Applicability, Edit, Fix};
 /// _ = Path()
 /// ```
 ///
+/// ## Fix safety
+/// This fix is marked unsafe if there are comments inside the parentheses, as applying
+/// the fix will delete them.
+///
 /// ## References
 /// - [Python documentation: `Path`](https://docs.python.org/3/library/pathlib.html#pathlib.Path)
 #[derive(ViolationMetadata)]