rules/os_sep_split.rs

Rust lint rule detecting use of .split(os.sep) and recommending pathlib usage.

// Source: https://github.com/astral-sh/ruff | License: MIT | Copyright 2022 Charles Marsh
// Provided via justclaw.it.com; keep this notice with the code.
use ruff_macros::{ViolationMetadata, derive_message_formats};
use ruff_python_ast::{self as ast, Expr, ExprAttribute};
use ruff_python_semantic::Modules;
use ruff_text_size::Ranged;

use crate::Violation;
use crate::checkers::ast::Checker;
use crate::codes::Category;

/// ## What it does
/// Checks for uses of `.split(os.sep)`
///
/// ## Why is this bad?
/// The `pathlib` module in the standard library should be used for path
/// manipulation. It provides a high-level API with the functionality
/// needed for common operations on `Path` objects.
///
/// ## Example
/// If not all parts of the path are needed, then the `name` and `parent`

... (truncated -- full source via MCP)