## Summary Recent changes made in the [Jupyter Notebook feature PR](https://github.com/astral-sh/ruff/pull/11206) caused automatic configuration reloading to stop working. This was because we would check for paths to reload using the changed path, when we should have been using the parent path of the changed path (to get the directory it was changed in). Additionally, this PR fixes an issue where `ruff.toml` and `.ruff.toml` files were not being automatically reloaded. Finally, this PR improves configuration reloading by actively publishing diagnostics for notebook documents (which won't be affected by the workspace refresh since they don't use pull diagnostics). It will also publish diagnostics for text documents if pull diagnostics aren't supported. ## Test Plan To test this, open an existing configuration file in a codebase, and make modifications that will affect one or more open Python / Jupyter Notebook files. You should observe that the diagnostics for both kinds of files update automatically when the file changes are saved. Here's a test video showing what a successful test should look like: https://github.com/astral-sh/ruff/assets/19577865/7172b598-d6de-4965-b33c-6cb8b911ef6c
The Ruff Language Server
Welcome! ruff server is a language server that powers editor integrations with Ruff. The job of the language server is to
listen for requests from the client, (in this case, the code editor of your choice) and call into Ruff's linter and formatter
crates to create real-time diagnostics or formatted code, which is then sent back to the client. It also tracks configuration
files in your editor's workspace, and will refresh its in-memory configuration whenever those files are modified.
Setup
We have specific setup instructions depending on your editor. If you don't see your editor on this list and would like a setup guide, please open an issue.
- Visual Studio Code: Install the Ruff extension from the VS Code Marketplace. The language server used by the extension will be, by default, the one in your actively-installed
ruffbinary. If you don't haveruffinstalled and haven't provided a path to the extension, it comes with a bundledruffversion that it will use instead. Since the new Ruff language server has not yet been stabilized, you will need to use the pre-release version of the extension and enable theExperimental Serversetting. - Neovim: See the Neovim setup guide.
Contributing
If you're interested in contributing to ruff server - well, first of all, thank you! Second of all, you might find the contribution guide to be a useful resource. Finally, don't hesitate to reach out on our Discord if you have questions.