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Escape IntelliJ: Scala and Kotlin LSPs on Emacs Eglot
TL;DR
Emacs Eglot has become the default Language Server Protocol (LSP) client in Emacs 29, offering a lightweight and efficient alternative for Scala and Kotlin development. The setup requires customization through Emacs Lisp to address quirks in LSP servers.
✦ Why It Matters
Engineers can adopt this Eglot configuration to enhance their Scala and Kotlin development experience in Emacs today.
Key Takeaways
- Use Emacs Eglot for a lightweight alternative to IntelliJ IDEA.
- Implement custom hooks for automatic language server startup.
- Leverage Emacs Lisp to fix LSP server issues on-the-fly.
- Utilize Nix for reproducible development environments.
How It Works
Eglot acts as a minimal transport layer for LSP, communicating with dedicated language servers via JSON-RPC. This separation allows for efficient handling of tasks like code completion and diagnostics, while Emacs Lisp enables developers to customize server interactions and fix bugs directly within their editor.