• This repository has been archived on 25/Jan/2024
  • Stars
    star
    702
  • Rank 64,499 (Top 2 %)
  • Language
    Rust
  • License
    MIT License
  • Created over 6 years ago
  • Updated 10 months ago

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Repository Details

WIP Language Server for Nix! [maintainer=@aaronjanse]

rnix-lsp Crates.io Chat on Matrix Build status

A syntax-checking language server using rnix.

  • Syntax-checking diagnostics
  • Basic completion
  • Basic renaming
  • Basic goto definition
  • Expand selection proposal
  • Formatting using nixpkgs-fmt

This is beta-level quality at best - I didn't expect maintaining a language server when writing rnix, the goal was that others would flock around the parser and write a bunch of editor tooling :)

Breakages are expected. No semver compatibility before 1.x.y.

Turn on logging with RUST_LOG=trace, and redirect stderr to a file.

bash -c "env RUST_LOG=trace rnix-lsp 2> /tmp/rnix-lsp.log"

Support for Mac OS is not guaranteed (see PR #61).

Install

nix-env -i -f https://github.com/nix-community/rnix-lsp/archive/master.tar.gz

Integrate with your editor

These instructions are not fully tested - see issue #3. Please raise an issue and/or send a PR if a config below didn't work out of the box.

Vim/Neovim

{
  "languageserver": {
    "nix": {
      "command": "rnix-lsp",
      "filetypes": [
        "nix"
      ]
    }
  }
}
let g:LanguageClient_serverCommands = {
    \ 'nix': ['rnix-lsp']
\ }
if executable('rnix-lsp')
    au User lsp_setup call lsp#register_server({
        \ 'name': 'rnix-lsp',
        \ 'cmd': {server_info->[&shell, &shellcmdflag, 'rnix-lsp']},
        \ 'whitelist': ['nix'],
        \ })
endif

Emacs

For eglot use (lsp +eglot)

;; init.el
(doom! :tools
       lsp
       
       :lang
       (nix +lsp))
(add-to-list 'lsp-language-id-configuration '(nix-mode . "nix"))
(lsp-register-client
 (make-lsp-client :new-connection (lsp-stdio-connection '("rnix-lsp"))
                  :major-modes '(nix-mode)
                  :server-id 'nix))
(add-to-list 'eglot-server-programs '(nix-mode . ("rnix-lsp")))

Kakoune

kak-lsp has builtin configuration since version v9.0.0:

[language.nix]
filetypes = ["nix"]
roots = ["flake.nix", "shell.nix", ".git"]
command = "rnix-lsp"

If you run into an issue regarding "missing roots" see this issue.

VSCode

{
    "nix.enableLanguageServer": true
}

RIP jd91mzm2

Sadly, the original author of this project, @jD91mZM2 has passed away. His online presence was anonymous and what we have left is his code. This is but one of his many repos that he contributed to.

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