Ruff Extension for Visual Studio Code
Overview
The Ruff extension for Visual Studio Code is a powerful tool designed to enhance the editing and formatting experience for Python developers. It is built on top of Ruff, which is a fast Python linter and code formatter implemented in Rust. This extension is available on the Visual Studio Marketplace and aims to replace several standard Python tools, such as Flake8 and Black, offering a significantly faster performance.
Key Features
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"Quick Fix" Actions: Allows users to swiftly address code violations, such as unused imports, with minimal effort.
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"Fix All" Actions: Users can automatically fix all fixable issues in their codebase instantly.
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Code Formatting: Provides Black-compatible formatting for code beautification.
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Import Sorting: Offers
isort-compatible sorting of imports for cleaner and more organized code.
Usage
After installing the extension in Visual Studio Code, Ruff automatically activates upon opening or editing a Python or Jupyter Notebook file. If necessary, it can be disabled per workspace using Visual Studio Code’s extension management settings.
Safety in Fixes
Ruff categorizes its automatic fixes into "safe" and "unsafe". By default, only safe fixes are applied automatically. Users have the option to apply unsafe fixes manually, or configure them to apply automatically by changing the Ruff configuration.
Jupyter Notebook Support
The extension fully supports Jupyter Notebooks, ensuring that all Ruff features, like diagnostics and code actions, are available. This functionality was stabilized in Ruff version 0.6.0 and is enabled by default in subsequent versions.
Supporting Untrusted Workspaces
In contexts considered untrusted, only the Rust-based language server is employed, as it does not require a Python interpreter. This behavior ensures security and encapsulates functionality effectively.
Configuration and Setup
Ruff can be configured using a pyproject.toml, ruff.toml, or .ruff.toml file. For seamless continuity across different environments, setting up configuration files shared amongst the command-line tool and the VS Code extension is recommended.
Configuring for Different Uses
- Set up to format Python code automatically on save.
- Organize imports and fix lint violations as part of the save process.
- Configure separate settings for Jupyter Notebooks.
For more detailed configuration, Ruff provides options related to the Rust-based language server for settings such as line length and lint rule selections.
Commands Overview
The extension provides several commands to enhance user interaction:
- Ruff: Fix all auto-fixable problems
- Ruff: Format Imports
- Ruff: Format Document
- Ruff: Restart Server
- Ruff: Show logs
Troubleshooting
For issues related to the extension, users can check logs available through the VS Code output panel. Adjusting log verbosity is possible via configuration settings to better analyze any problems.
License
The Ruff extension is open-source, distributed under the MIT license, making it easily accessible and modifiable.
By integrating the Ruff extension into Visual Studio Code, developers can streamline their Python workflows, benefiting from a host of features designed to maximize efficiency and maintain cleaner codebases.