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    How to Install Lua LSP on Neovim

    Series on how to configure LSP for your programming language in Neovim

    How to Install Lua LSP on Neovim

    Today we are going to start a series on how to install Language Server Protocol (LSP) for different programming languages on Neovim.

    This article assumes you already know:

    • What is an LSP, if you don’t know see here .
    • You already know how to configure your Neovim, if you don’t know, see here .
    • You already have basic knowledge of Lua, if you don’t, see here .

    In this first article of the series we will configure the LSP for Lua .

    Lua uses the LSP that is in the repository https://github.com/sumneko/lua-language-server, the same one used in VS Code .

    For this article we are going to use Ubuntu 22.04 , if it is in a different version or different operating system or even in another distribution, just use search from your package manager.

    Dependencies

    First of all, make sure you have the following packages/software installed on your system:

    Example:

    sudo apt install gcc g++ clang ninja-build

    Installation of LSP

    1st - Prepare a directory where the LSP will be stored

    In this case I will store it in ${HOME}/.config/lsp, change the path if you are more interested

    Create the directory and enter it

    mkdir -p ~/.config/lsp
cd ~/.config/lsp

    2nd - Now clone and compile the lua-language-server binary

    With the following commands in order:

    git clone --depth=1 https://hub.fastgit.xyz/sumneko/lua-language-server
lua-language-server cd
git submodule update --init --recursive
3rd cd/luamake
compile/install.sh
cd ../..
./3rd/luamake/luamake rebuild

    3rd - Add the binary to your $PATH

    Neovim already has several LSPs built in, what is missing is for it to find the path to the binary in its $PATH.

    To do this, run the commands below:

    If you used a path other than ~/.config/lsp , change it accordingly.

    echo 'export PATH="${HOME}/.config/lsp/lua-language-server/bin:${PATH}"' >> ~/.bashrc
source ~/.bashrc
execute $SHELL

    Configuring Neovim

    Add LSP support for Lua as per the configuration style you chose. In this case, as an example, let’s use init.lua .

    vim ~/.config/nvim/init.lua

    And add the code below

    require'lspconfig'.sumneko_lua.setup {}

    If everything is ok, you will have: function details, error and warning information, autocomplete according to tables and so on. Examples:

    print LSP Lua Autocomplete table LSP Lua warnings and errors LSP Lua

    Useful links

    lua neovim

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