Tree-sitter major mode and LSP integration for Ember Glint (.gts / .gjs) files in Emacs.

This package provides:

• glint-ts-mode — Tree-sitter major mode derived from tsx-ts-mode
• lsp-glint — lsp-mode client for glint-language-server

Designed for Emacs 30+ only.

• Emacs 30.1+
• Node.js
• glint-language-server
• lsp-mode 9.0+

M-x package-install RET glint-ts-mode

(use-package glint-ts-mode
  :ensure t)

Opening a .gts or .gjs file will activate the mode and start LSP automatically.

Open a .gts or .gjs file.

• glint-ts-mode is enabled automatically
• glint-language-server starts via lsp-mode
• TypeScript LSP (ts-ls) is disabled for Glint buffers

This package relies on native Tree-sitter support in Emacs 30.

Install required grammars:

M-x treesit-install-language-grammar RET tsx
M-x treesit-install-language-grammar RET typescript

This step is only if you need highlighting for GLimmer templates.

M-x treesit-install-language-grammar RET glimmer

To make these grammars available:

(setq treesit-language-source-alist
      '((tsx "https://github.com/tree-sitter/tree-sitter-typescript" "master" "tsx/src")
        (typescript "https://github.com/tree-sitter/tree-sitter-typescript" "master" "typescript/src")
        (glimmer "https://github.com/alexlafroscia/tree-sitter-glimmer")))

More information: https://www.gnu.org/software/emacs/manual/html_node/elisp/Parsing-Program-Source.html

(setq lsp-node-args '("--max-old-space-size=4096"))

• glint-ts-mode derives from tsx-ts-mode
• Tree-sitter highlighting uses the TSX grammar
• Glint is treated as TypeScript at the LSP protocol level
• No legacy tree-sitter-mode support is included

MIT