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This adds a new `backend: internal | uv` option to the LSP `FormatOptions` allowing users to perform document and range formatting operations though uv. The idea here is to prototype a solution for users to transition to a `uv format` command without encountering version mismatches (and consequently, formatting differences) between the LSP's version of `ruff` and uv's version of `ruff`. The primarily alternative to this would be to use uv to discover the `ruff` version used to start the LSP in the first place. However, this would increase the scope of a minimal `uv format` command beyond "run a formatter", and raise larger questions about how uv should be used to coordinate toolchain discovery. I think those are good things to explore, but I'm hesitant to let them block a `uv format` implementation. Another downside of using uv to discover `ruff`, is that it needs to be implemented _outside_ the LSP; e.g., we'd need to change the instructions on how to run the LSP and implement it in each editor integration, like the VS Code plugin. --------- Co-authored-by: Dhruv Manilawala <dhruvmanila@gmail.com> |
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The Ruff Language Server
ruff server is a language server that powers Ruff's editor integrations.
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 construct 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.
Refer to the documentation for more information on how to set up the language server with your editor and configure it to your liking.
Contributing
Contributions are welcome and highly appreciated. To get started, check out the contributing guidelines.
You can also join us on Discord.