Installing language servers

Manually

The installation instructions for each server are in server_configurations.md. For the vast majority of servers, this is a one-time, one-line installation (npm i -g pyright, dnf install clang-tools-extra, brew install lua-language-server, etc.).

It is preferred to use your system package manager if possible, as this will handle automatic updates for you.

Automatically

Use nvim-lsp-installer. After adding both lspconfig and nvim-lsp-installer to your packages, the integration is seamless.

require("nvim-lsp-installer").setup {}
require('lspconfig').pyright.setup {}

Then run :LspInstall pyright, and pyright should now be available.

If you want to ensure servers are always installed:

local servers = { "sumneko_lua", "rust_analyzer" }
require("nvim-lsp-installer").setup {
  ensure_installed = servers
}

for _, server in ipairs(servers) do
  require('lspconfig')[server].setup {}
end

Or alternatively, to automatically install servers that are set up via lspconfig:

require("nvim-lsp-installer").setup {
  automatic_installation = true
}

local lspconfig = require('lspconfig')

lspconfig.sumneko_lua.setup {}
lspconfig.rust_analyzer.setup {}