This PR introduces native LSP support for Bash by integrating
`bash-language-server`. Combined with the existing Tree-sitter grammar,
Zed now provides a complete, out-of-the-box development experience for
shell scripting.
The implementation is very similar to other npm-managed language
servers. With `shellcheck` installed, standard LSP features—including
diagnostics, code actions, go-to-definition, find-references, and code
completion—work as expected.
Since I am not a frequent user of Bash, I have intentionally limited
this implementation to a standard, "out-of-the-box" setup. I lack the
hands-on experience to identify specific pain points or advanced LSP
features that might require custom integration, so I've avoided adding
any speculative or specialized configurations, especially within the
`LspAdapter` trait.
Self-Review Checklist:
- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [ ] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable
Closes#51917
Release Notes:
- Added built-in language server support for Bash
---------
Co-authored-by: Finn Evers <finn@zed.dev>
