swls.nvim

Neovim plugin for the Semantic Web Language Server.

Provides filetype detection for Turtle, SPARQL, and JSON-LD files and starts the LSP automatically.

Features

• Filetype detection for .ttl, .sq, .rq, .sparql, .jsonld
• Auto-starts swls on matching buffers
• Inlay hints enabled by default
• :checkhealth swls to verify your setup

Requirements

• Neovim 0.10+
• swls binary on your PATH

Install the binary via Cargo:

cargo install --git https://github.com/SemanticWebLanguageServer/swls.git swls

Or download a pre-built binary from the releases page.

Installation

lazy.nvim

{
    "SemanticWebLanguageServer/swls.nvim",
    opts = {},
}

packer.nvim

use {
    "SemanticWebLanguageServer/swls.nvim",
    config = function()
        require("swls").setup()
    end,
}

Manual — clone into your packpath:

git clone https://github.com/SemanticWebLanguageServer/swls.nvim \
    ~/.local/share/nvim/site/pack/plugins/start/swls.nvim

Then call require("swls").setup() in your config.

Configuration

setup() accepts an optional table. All fields are optional — unset fields keep their defaults.

require("swls").setup({
    -- Command used to start the server.
    cmd = { "swls" },

    -- Filetypes that trigger the LSP.
    filetypes = { "turtle", "sparql", "jsonld" },

    -- Root directory passed to the LSP. Defaults to cwd.
    root_dir = nil,

    -- Sent to the server at startup. Disable languages you don't use.
    init_options = {
        sparql = false,  -- SPARQL support is experimental
        -- turtle = false,
        -- jsonld = false,
    },

    -- Extra settings (sent via workspace/didChangeConfiguration).
    settings = {},

    -- Enable inlay hints on attach.
    inlay_hints = true,
})

Examples

Run with RUST_BACKTRACE for debugging:

require("swls").setup({
    cmd = { "sh", "-c", "RUST_BACKTRACE=1 swls" },
})

Enable SPARQL support:

require("swls").setup({
    init_options = { sparql = true },
})

Health check

:checkhealth swls

Reports whether the swls binary is found, its version, and whether your Neovim supports inlay hints.