About
Screenshots
Installation
- Packer
- vim-plug
Usage
Available LSPs
Custom servers
Logo
Roadmap
Default configuration

About

Neovim plugin that allows you to seamlessly install LSP servers locally (inside :echo stdpath("data")).

On top of just providing commands for installing & uninstalling LSP servers, it:

provides a graphical UI
is optimized for blazing fast startup times
provides the ability to check for new server versions
supports installing custom versions of LSP servers (for example :LspInstall rust_analyzer@nightly)
relaxes the minimum requirements by attempting multiple different utilities (for example, only one of wget, curl, or Invoke-WebRequest is required for HTTP requests)
allows you to install and setup servers without having to restart neovim
hosts a suite of system tests for all supported servers
has full support for Windows

Screenshots

Installation

Requires neovim >= 0.6.0 and nvim-lspconfig. The full requirements to install all servers are:

For Unix systems: git(1), curl(1) or wget(1), unzip(1), tar(1), gzip(1)
For Windows systems: powershell, git, tar, and 7zip or peazip or archiver or winzip or WinRAR
Node.js (LTS) & npm
Python3 & pip3
go >= 1.17
JDK
Ruby & gem
PHP & Composer
dotnet
pwsh
Julia
valac (and meson & ninja)
rebar3

Packer

use {
    'neovim/nvim-lspconfig',
    'williamboman/nvim-lsp-installer',
}

vim-plug

Plug 'neovim/nvim-lspconfig'
Plug 'williamboman/nvim-lsp-installer'

Usage

Commands

:LspInstallInfo - opens a graphical overview of your language servers
:LspInstall [--sync] [server] ... - installs/reinstalls language servers. Runs in a blocking fashion if the --sync argument is passed (only recommended for scripting purposes).
:LspUninstall [--sync] <server> ... - uninstalls language servers. Runs in a blocking fashion if the --sync argument is passed (only recommended for scripting purposes).
:LspUninstallAll [--no-confirm] - uninstalls all language servers
:LspInstallLog - opens the log file in a new tab window
:LspPrintInstalled - prints all installed language servers

Setup

The recommended way of setting up your installed servers is to do it through nvim-lsp-installer. By doing so, nvim-lsp-installer will make sure to inject any necessary properties before calling lspconfig's setup function for you. You may find a minimal example below. To see how you can override the default settings for a server, refer to the Wiki.

local lsp_installer = require("nvim-lsp-installer")

-- Register a handler that will be called for each installed server when it's ready (i.e. when installation is finished
-- or if the server is already installed).
lsp_installer.on_server_ready(function(server)
    local opts = {}

    -- (optional) Customize the options passed to the server
    -- if server.name == "tsserver" then
    --     opts.root_dir = function() ... end
    -- end

    -- This setup() function will take the provided server configuration and decorate it with the necessary properties
    -- before passing it onwards to lspconfig.
    -- Refer to https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md
    server:setup(opts)
end)

For more advanced use cases you may also interact with more APIs nvim-lsp-installer has to offer, refer to :help nvim-lsp-installer for more docs.

Configuration

You can configure certain behavior of nvim-lsp-installer by calling the .settings() function.

Make sure to provide your settings before any other interactions with nvim-lsp-installer!

Refer to the default configuration for all available settings.

Example:

local lsp_installer = require("nvim-lsp-installer")

lsp_installer.settings({
    ui = {
        icons = {
            server_installed = "✓",
            server_pending = "➜",
            server_uninstalled = "✗"
        }
    }
})

Available LSPs

Language	Server name
AWK	`awk_ls`
Angular	`angularls`
Ansible	`ansiblels`
Arduino (docs!!!)	`arduino_language_server`
Assembly (GAS/NASM, GO)	`asm_lsp`
AsyncAPI	`spectral`
Bash	`bashls`
Beancount	`beancount`
Bicep	`bicep`
C	`ccls`
C	`clangd`
C#	`csharp_ls`
C#	`omnisharp`
C++	`ccls`
C++	`clangd`
CMake	`cmake`
CSS	`cssls`
CSS	`cssmodules_ls`
Clojure	`clojure_lsp`
CodeQL	`codeqlls`
Crystal	`crystalline`
Crystal	`scry`
Cucumber	`cucumber_language_server`
Dart	`dartls`
Deno	`denols`
Diagnostic (general purpose server)	`diagnosticls`
Dlang	`serve_d`
Docker	`dockerls`
Dot	`dotls`
EFM (general purpose server)	`efm`
ESLint (docs)	`eslint`
Elixir	`elixirls`
Elm	`elmls`
Ember	`ember`
Emmet	`emmet_ls`
Erlang	`erlangls`
F#	`fsautocomplete`
Flux	`flux_lsp`
Foam (OpenFOAM)	`foam_ls`
Fortran	`fortls`
Go	`golangci_lint_ls`
Go	`gopls`
Grammarly	`grammarly`
GraphQL	`graphql`
Groovy	`groovyls`
HTML	`html`
Haskell	`hls`
Haxe	`haxe_language_server`
JSON	`jsonls`
Java	`jdtls`
JavaScript	`quick_lint_js`
JavaScript	`tsserver`
Jsonnet	`jsonnet_ls`
Julia	`julials`
Kotlin	`kotlin_language_server`
LaTeX	`ltex`
LaTeX	`texlab`
Lelwel	`lelwel_ls`
Lua	`sumneko_lua`
Markdown	`remark_ls`
Markdown	`zeta_note`
Markdown	`zk`
Nickel	`nickel_ls`
Nim	`nimls`
OCaml	`ocamlls`
Objective C	`ccls`
OneScript, 1C:Enterprise	`bsl_ls`
OpenAPI	`spectral`
OpenCL	`opencl_ls`
PHP	`intelephense`
PHP	`phpactor`
PHP	`psalm`
Powershell	`powershell_es`
Prisma	`prismals`
Puppet	`puppet`
PureScript	`purescriptls`
Python	`jedi_language_server`
Python	`pyright`
Python (docs)	`pylsp`
R	`r_language_server`
ReScript	`rescriptls`
Rome	`rome`
Ruby	`solargraph`
Rust (wiki)	`rust_analyzer`
SQL	`sqlls`
SQL	`sqls`
Salt	`salt_ls`
Shopify Theme Check	`theme_check`
Solidity	`solang`
Solidity	`solc`
Solidity (VSCode)	`solidity_ls`
Sorbet	`sorbet`
Sphinx	`esbonio`
Stylelint	`stylelint_lsp`
Svelte	`svelte`
Swift	`sourcekit`
SystemVerilog	`svls`
SystemVerilog	`verible`
TOML	`taplo`
Tailwind CSS	`tailwindcss`
Terraform	`terraformls`
Terraform (docs)	`tflint`
TypeScript (docs)	`tsserver`
Vala	`vala_ls`
VimL	`vimls`
Vue	`volar`
Vue	`vuels`
XML	`lemminx`
YAML	`yamlls`
Zig	`zls`

Custom servers

You can create your own installers by using the same APIs nvim-lsp-installer itself uses. Refer to CUSTOM_SERVERS.md for more information.

Logo

Illustrations in the logo are derived from @Kaligule's "Robots" collection.

Roadmap

Command (and corresponding Lua API) to update outdated servers (e.g., :LspUpdateAll)

Default configuration

local DEFAULT_SETTINGS = {
    ui = {
        icons = {
            -- The list icon to use for installed servers.
            server_installed = "◍",
            -- The list icon to use for servers that are pending installation.
            server_pending = "◍",
            -- The list icon to use for servers that are not installed.
            server_uninstalled = "◍",
        },
        keymaps = {
            -- Keymap to expand a server in the UI
            toggle_server_expand = "<CR>",
            -- Keymap to install a server
            install_server = "i",
            -- Keymap to reinstall/update a server
            update_server = "u",
            -- Keymap to update all installed servers
            update_all_servers = "U",
            -- Keymap to uninstall a server
            uninstall_server = "X",
        },
    },

    -- The directory in which to install all servers.
    install_root_dir = path.concat { vim.fn.stdpath "data", "lsp_servers" },

    pip = {
        -- These args will be added to `pip install` calls. Note that setting extra args might impact intended behavior
        -- and is not recommended.
        --
        -- Example: { "--proxy", "https://proxyserver" }
        install_args = {},
    },

    -- Controls to which degree logs are written to the log file. It's useful to set this to vim.log.levels.DEBUG when
    -- debugging issues with server installations.
    log_level = vim.log.levels.INFO,

    -- Limit for the maximum amount of servers to be installed at the same time. Once this limit is reached, any further
    -- servers that are requested to be installed will be put in a queue.
    max_concurrent_installers = 4,
}

License

rentziass/nvim-lsp-installer

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