Neovim KISS configuration with Lua

Table of Contents

• Plugins
• Directory Tree
• Files and Settings
• Installation
• LSP Configuration
• Appearance
• Configuration Check
• Screenshots

Plugins

packer.nvim - A use-package inspired plugin manager for Neovim

feline.nvim - A minimal, stylish and customizable statusline for Neovim written in Lua

nvim-lspconfig - A collection of common configurations for Neovim's built-in language server client

nvim-cmp - Auto completion plugin

LuaSnip - Snippet Engine for Neovim written in Lua

nvim-tree.lua - A File Explorer written In Lua

indentBlankline - Adds indentation guides to all lines (including empty lines)

nvim-autopairs - A super powerful autopairs for Neovim

Tagbar - A class outline viewer for Vim

gitsigns - Super fast git decorations implemented purely in lua/teal

nvim-treesitter - Nvim Treesitter configurations and abstraction layer

alpha-nvim - A fast and highly customizable greeter for neovim.

nvim-web-devicons - A Lua fork of vim-devicons

Directory Tree

${HOME}/.config/nvim

├── lua
│   ├── core
│   │   ├── autocmds.lua
│   │   ├── colors.lua
│   │   ├── keymaps.lua
│   │   ├── options.lua
│   │   └── statusline.lua
│   ├── plugins
│   │   ├── alpha-nvim.lua
│   │   ├── indent-blankline.lua
│   │   ├── nvim-cmp.lua
│   │   ├── nvim-lspconfig.lua
│   │   ├── nvim-tree.lua
│   │   └── nvim-treesitter.lua
│   └── packer_init.lua
├── plugin
│   └── packer_compiled.lua
└── init.lua

Files and Settings

/nvim

• init.lua: Main configuration file that call lua modules

• lua: Folder of lua modules, here reside all the Lua modules that needed. These modules are called from init.lua file (see below).

See: https://github.com/nanotee/nvim-lua-guide#where-to-put-lua-files

/nvim/lua

• packer_init.lua: Load plugins

/nvim/lua/core

• autocmds.lua: Define autocommands with Lua APIs

• colors.lua: Define Neovim and plugins color scheme

• keymaps.lua: Keymaps configuration file, vim/neovim and plugins keymaps

• options.lua: General Neovim settings

• statusline.lua: Statusline configuration file

/nvim/lua/plugins

• packer.lua: Plugin manager settings

• alpha-nvim.lua: Dashboard

• indent-blankline.lua: Indent line

• nvim-cmp.lua: Autocompletion settings

• nvim-lspconfig.lua: LSP configuration (language servers, keybinding)

• nvim-tree.lua: File manager settings

• nvim-treesitter: Treesitter interface configuration

Installation

1. Install Neovim v0.7.x.

2. Install Nerd Fonts, (for the font of the screenshots install Cozette Font).

3. Install npm for download packages of LSP language servers, see: LSP Configuration.

4. Make a backup of your current nvim folder if necessary:

mv ~/.config/nvim ~/.config/nvim.backup

5. Download neovim-lua with git and copy the nvim folder in the ${HOME}/.config directory:

git clone https://github.com/brainfucksec/neovim-lua.git
cd neovim-lua/
cp -Rv nvim ~/.config/

6. Install packer.nvim for install and manage the plugins:

git clone --depth 1 https://github.com/wbthomason/packer.nvim\
 ~/.local/share/nvim/site/pack/packer/start/packer.nvim

7. Run Neovim with PackerSync command:

nvim +PackerSync

LSP Configuration

1. Install LSP language servers with npm

sudo npm install -g bash-language-server pyright vscode-langservers-extracted typescript typescript-language-server

2. Install additional packages for plugins support:

C, C++:

• clang for use LSP with clangd.

• ctags to view tags with Tagbar.

Python:

• pynvim

3. Open a source file of one of the supported languages with Neovim, and run command :LspInfo for testing the LSP support.

Languages Currently Supported

Lua - builtin

Bash - bashls

Python - pyright

C, C++ - clangd

HTML, CSS, JSON - vscode-html

JavaScript, TypeScript - tsserver

See: nvim-lspconfig #doc/server_configurations.md

Appearance

Available Colorschemes

• OneDark

• Neovim Monokai

• Rose Pine

Fonts: Cozette

Icons: nvim-web-devicons

The color scheme is defined in the following files (default: OneDark):

• Neovim UI - nvim/lua/core/settings.lua:

-- Load nvim color scheme:
...color_scheme = pcall(require, 'onedark')
require('onedark').setup {
    style = 'darker'
}
require('onedark').load()

• Statusline - nvim/lua/plugins/feline.lua:

-- Set colorscheme (from core/colors.lua/colorscheme_name)
local colors = require('core/colors').onedark_dark

Configuration check

• Open nvim and run command checkhealth, you should not see any error in the output (except for the one related to the Python 2 interpreter if don't have it):

:checkhealth

• You can also use the startuptime option to read the nvim startup logs:

nvim --startuptime > /tmp/nvim-start.log

nvim /tmp/nvim-start.log

See: :help startuptime

Screenshots

(Click to expand)

OneDark (darker)

Monokai

Rosé Pine

TODO

• Add support for Rust programming language.
• Add another color scheme (not important).

Guides and resources

• https://neovim.io/doc/user/lua.html

• https://github.com/nanotee/nvim-lua-guide

• https://dev.to/vonheikemen/everything-you-need-to-know-to-configure-neovim-using-lua-3h58

• https://www.old.reddit.com/r/neovim/

Other Neovim Lua projects and examples

• https://github.com/LunarVim/Neovim-from-scratch

• https://github.com/siduck76/NvChad

• https://github.com/artart222/CodeArt

• https://github.com/crivotz/nv-ide

Lua resources

• Lua in Y minutes - https://learnxinyminutes.com/docs/lua/

• Lua Quick Guide - https://github.com/medwatt/Notes/blob/main/Lua/Lua_Quick_Guide.ipynb

• Lua 5.4 Reference Manual - https://www.lua.org/manual/5.4/

Disclaimer

As all my setups I try to follow the KISS principle, probably some concepts may not be valid for everyone. Then feel free to take what you need but don't install anything without checking first!

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Thanks to all the authors of the sources mentioned above, to all the others from whom I "stole" some configs and thanks to the users of /r/Neovim subreddit for the support of the configuration :)