A Language Server Protocol implementation for the CUE language.

🚨 🏗️ This project is a work in progress and may not be completely functional yet 🏗️ 🚨

• Features
• Installation
• Usage
• Configuration
• Development
  • Prerequisites
  • Building
  • Testing
• License

• Full cuelang file formatting in your IDE

go get -u github.com/bobmaertz/cuelang-lsp

Describe how to use your CUE LSP, including any command-line options or integration with popular editors.

lsp [options]

The lsp currently supports a single filepath argument for a debug log.

lsp ~/out.log

• Go 1.22 or higher
• CUE 0.10.0 or higher

git clone https://github.com/bobmaertz/cuelang-lsp.git
cd cuelang-lsp
make build

make test

There are two commands in the /cmd directory, one for the language server and the other for formatting. The LSP binay can be run using the binary located at /bin/lsp

To test the formatting functionality, use the following command.

go run fmtr <path/to/cuefile>.cue 

I've setup my local environment to use this LSP for *.cue files.

local client = vim.lsp.start_client {
    name = "cuelang-lsp",
    cmd = { "/Users/bob/personal/cuelang-lsp/lsp" }
}

if not client then
    vim.notify "cuelang-lsp did not start"
    return
end

vim.api.nvim_create_autocmd("FileType", {
    pattern = "cue",
    callback = function()
        vim.lsp.buf_attach_client(0, client)
    end

})

Only necessary if there the pattern used in the lsp configuration is not based on the standard treesitter filetype for cue.

:setfiletype cue 
:LspRestart

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.jjk