Editor Integration

Overview

This guide covers the installation of the rustimate Tree-sitter grammar for few editors like Neovim, Helix and emacs.

Neovim (Lazy.nvim)

To avoid manual path hacking, we let Lazy manage the repository as a dependency. This ensures the highlights.scm is automatically added to the Neovim Runtime Path (RTP).


-- lua/plugins/treesitter.lua
return {
  -- 1. Tell Lazy about your repo so it manages the PATH for you
  {
    "rvbug/tree-sitter-rustimate",
    lazy = true, -- Only loads when needed
  },

  -- 2. Your standard Treesitter config
  {
    "nvim-treesitter/nvim-treesitter",
    branch = "master",
    build = ":TSUpdate",
    dependencies = { "tree-sitter-rustimate" }, -- This is the key!
    config = function()
      local parsers = require("nvim-treesitter.parsers")

      -- Register the parser
      parsers.get_parser_configs().rustimate = {
        install_info = {
          url = "https://github.com/rvbug/tree-sitter-rustimate.git",
          files = { "src/parser.c" },
          branch = "main",
        },
        filetype = "rsl",
      }

      -- Standard Setup
      require("nvim-treesitter.configs").setup({
        ensure_installed = { "lua", "rust", "markdown", "vimdoc" },
        auto_install = true,
        highlight = { enable = true },
      })
    end,
  },
}

Helix

Helix requires explicit grammar fetching and building via the CLI.

File: ~/.config/helix/languages.toml

[[language]]
name = "rustimate"
scope = "source.rsl"
file-types = ["rsl"]
grammar = "rustimate"

[[grammar]]
name = "rustimate"
source = { git = "[https://github.com/rvbug/tree-sitter-rustimate](https://github.com/rvbug/tree-sitter-rustimate)", rev = "main" }

Commands:

hx --grammar fetch
hx --grammar build

Emacs (built-in treesit)

For Emacs 29+, use the built-in treesit library.

File: config.org

(setq treesit-language-source-alist
      '((rustimate "[https://github.com/rvbug/tree-sitter-rustimate](https://github.com/rvbug/tree-sitter-rustimate)")))

;; Install via M-x treesit-install-language-grammar RET rustimate
(add-to-list 'major-mode-remap-alist '(rsl-mode . rustimate-ts-mode))

Coming Soon

LSP for Rustimate will be available for public beta soon!