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__TOC__
<languages/>
<translate>
<!--T:1-->
[https://neovim.io/ Neovim]<ref>Neovim Team, "Home - Neovim", Neovim Official Website, N/A. https://neovim.io/</ref> is a highly extensible and open source text editor that aims to improve upon and modernize the popular [[Vim]]<ref>NixOS Wiki, Vim. https://wiki.nixos.org/wiki/Vim</ref> editor. It's designed to be a drop-in replacement for Vim, maintaining compatibility with most Vim plugins and configurations while offering additional features and improvements. Neovim focuses on extensibility, usability, and performance.


== Installation and configuration ==
<!--T:2-->
It introduces a powerful plugin architecture that allows for asynchronous plugin execution, which can significantly improve performance for certain operations. It also includes a built-in terminal emulator, allowing users to run shell commands directly within the editor. The project emphasizes code quality and maintainability, with a clean, well-documented codebase that makes it easier for developers to contribute.


Neovim shares most of its configuration with Vim. See the [[Vim|Vim page]] for more details on the use of both.
== Installation == <!--T:3-->


=== With Home Manager ===
==== Using nix-shell ==== <!--T:4-->


[https://nixos.wiki/wiki/Home_Manager Home Manager] has a module for Neovim, which can be enabled via
</translate>
<syntaxhighlight lang="bash" start="3">
nix-shell -p neovim
</syntaxhighlight>
<translate>


  programs.neovim = {
==== Using Global Configuration ==== <!--T:5-->
    enable = true;
 
    extraConfig = '''''''
</translate>
      set number relativenumber
<syntaxhighlight lang="text">
    '''''''
environment.systemPackages = [
  };
  pkgs.neovim
];
</syntaxhighlight>
<translate>
 
<!--T:37-->
After modifying your configuration, apply the changes by running:
 
</translate>
<syntaxhighlight lang="bash">
sudo nixos-rebuild switch
</syntaxhighlight>
<translate>
 
==== Using Home Configuration ==== <!--T:6-->
 
</translate>
<syntaxhighlight lang="text">
home.packages = [
  pkgs.neovim
];
</syntaxhighlight>
<translate>


More information about the module can be found here: [https://nix-community.github.io/home-manager/options.html#opt-programs.neovim.enable Home Manager Manual].
<!--T:38-->
After updating your configuration, apply the changes by running:


==== Configuration ====
</translate>
<syntaxhighlight lang="bash">
home-manager switch
</syntaxhighlight>
<translate>


The Home Manager module does not expose many configuration options.
== Configuration == <!--T:7-->
Therefore, the easiest way to get started is to use the [https://nix-community.github.io/home-manager/options.html#opt-programs.neovim.extraConfig extraConfig] option.
You can copy your old config or directly load your default Neovim config via:


  programs.neovim.extraConfig = lib.fileContents ../path/to/your/init.vim;
==== Basic ==== <!--T:8-->


To use Neovim as your default editor, you can set the <code>EDITOR</code> [https://search.nixos.org/options?show=environment.variables&type=packages&query=environment.variables environmental variable] to "nvim" by adding the following to your NixOS configuration:
</translate>
<syntaxhighlight lang="nix">
<translate>
<!--T:39-->
# Global Configuration
</translate>
programs.neovim = {
  enable = true;
  defaultEditor = true;
};


   environment.variables.EDITOR = "nvim";
<translate>
<!--T:40-->
# Home Configuration
</translate>
programs.neovim = {
   enable = true;
  extraConfig = ''
    set number relativenumber
  '';
};
</syntaxhighlight>
<translate>


The Home Manager module does also expose options to automatically add <code>vi</code> and <code>vim</code> aliases.
==== Advanced ==== <!--T:10-->
To use them, add the following to your Home Manager configuration:


  programs.neovim = {
</translate>
    viAlias = true;
<syntaxhighlight lang="nix">
    vimAlias = true;
<translate>
<!--T:41-->
# Global Configuration
</translate>
programs.neovim = {
  enable = true;
  defaultEditor = true;
  viAlias = true;
  vimAlias = true;
  configure = {
    customRC = ''
      set number
      set cc=80
      set list
      set listchars=tab:→\ ,space:·,nbsp:␣,trail:•,eol:¶,precedes:«,extends:»
      if &diff
        colorscheme blue
      endif
    '';
    packages.myVimPackage = with pkgs.vimPlugins; {
      start = [ ctrlp ];
    };
   };
   };
};


==== Installing Plugins ====
<translate>
<!--T:42-->
# Home Configuration
# You have to add the line below to set it as the default editor:
</translate>
environment.variables.EDITOR = "nvim";
</syntaxhighlight>
<translate>


Plugins can be installed using the <code>programs.neovim.plugins</code> option.
== Tips and Tricks == <!--T:12-->
You can add only the plugin, or the plugin with its corresponding config:


  programs.neovim.plugins = [
==== Location of Options ==== <!--T:13-->
    vimPlugins.nvim-tree-lua
    {
      plugin = vim-startify;
      config = "let g:startify_change_to_vcs_root = 0";
    }
  ];


If you only add the plugin, you can add the configuration as described above.
<!--T:43-->
The home manager options are defined in the following [https://nix-community.github.io/home-manager/options.xhtml#opt-programs.neovim.enable Home Manager Options Manual]<ref>Nix Community, "Home Manager Option Search", Nix Community GitHub Pages, N/A. https://nix-community.github.io/home-manager/options.xhtml#opt-programs.neovim.enable</ref>.


An index of official packages can be found in on [https://search.nixos.org/packages?from=0&size=50&sort=relevance&type=packages&query=vimPlugins search.nixos.org].
<!--T:14-->
In addition to the official packages, there are several user maintained repositories, such as [https://github.com/m15a/nixpkgs-vim-extra-plugins vim-extra-plugins] or [https://github.com/NixNeovim/NixNeovimPlugins NixNeovimPlugins].
The global options are listed on [https://mynixos.com/search?q=nixpkgs%2Foption%2Fprograms.neovim MyNixOS]<ref>MyNixOS Team, "Search: nixpkgs/option/programs.neovim", MyNixOS, N/A. https://mynixos.com/search?q=nixpkgs%2Foption%2Fprograms.neovim</ref>.  


=== Without Home Manager ===
==== Package Variations ==== <!--T:15-->


If you do not use Home Manager, you can use the following code in your NixOS configuration:
<!--T:44-->
Have a look at the [https://github.com/nix-community/neovim-nightly-overlay Neovim Nightly Overlay]<ref>Nix Community, "neovim-nightly-overlay", GitHub, N/A. https://github.com/nix-community/neovim-nightly-overlay</ref> to install the most recent current nightly version of Neovim.


  programs.neovim = {
<!--T:16-->
    enable = true;
You can run the master version via the following command:
    defaultEditor = true;
  };


==== Configuration ====
<!--T:17-->
nix run "github:nix-community/neovim-nightly-overlay"


The NixOS module does not have an <code>extraConfig</code> option as the Home Manager module does.
==== Plugin Management ==== <!--T:21-->
Instead, you can use the <code>programs.neovim.configure</code> option as described [https://search.nixos.org/options?show=programs.neovim.configure&type=packages&query=neovim here].


Similarly to the Home Manager module, to set Neovim as your default editor you have to set the <code>EDITOR</code> environment variable like this:
</translate>
<syntaxhighlight lang="nix">
plugins = [
<translate>
  <!--T:49-->
# Example Plugin: nvim-tree-lua
</translate>
  pkgs.vimPlugins.nvim-tree-lua


   environment.variables.EDITOR = "nvim";
<translate>
   <!--T:50-->
# Example Plugin: vim-startify with configuration
</translate>
  {
    plugin = pkgs.vimPlugins.vim-startify;
    config = "let g:startify_change_to_vcs_root = 0";
  }


Further, the NixOS module does also expose options to automatically add <code>vi</code> and <code>vim</code> aliases.
<translate>
To use them, add the following to your NixOS configuration:
  <!--T:51-->
# Example Plugin: nvim-colorizer-lua with Lua config
  # Due to how the runtimepath for Lua modules is processed, your configuration may require
  # packadd! plugin-name to require a module. A home-manager example:
</translate>
  {
    plugin = pkgs.vimPlugins.nvim-colorizer-lua;
    config = ''
      packadd! nvim-colorizer.lua
      lua << END
        require 'colorizer'.setup {
          '*';<translate> <!--T:52--> -- Highlight all files, but customize some others.</translate>
          '!vim';<translate> <!--T:53--> -- Exclude vim from highlighting.</translate>
        }
      END
    '';
  }


   programs.neovim = {
<translate>
    viAlias = true;
  <!--T:54-->
    vimAlias = true;
# Example Plugin: nvim-treesitter with Lua config
   };
</translate>
   {
    plugin = pkgs.vimPlugins.nvim-treesitter;
    config = ''
      packadd! nvim-treesitter
      lua <<EOF
        require'nvim-treesitter.configs'.setup {
          highlight = {
            enable = true,              <translate><!--T:55--> -- false will disable the whole extension</translate>
            disable = {},              <translate><!--T:56--> -- list of languages that will be disabled</translate>
          },
          incremental_selection = {
            enable = true,
            keymaps = {
              init_selection = "gnn",
              node_incremental = "grn",
              scope_incremental = "grc",
              node_decremental = "grm",
            },
          },
          textobjects = {
            select = {
              enable = true,
              lookahead = true,
              keymaps = {
                ["af"] = "@function.outer",
                ["if"] = "@function.inner",
                ["ac"] = "@class.outer",
                ["ic"] = "@class.inner",
              },
            },
          },
        }
      EOF
    '';
   }


=== Manually ===
<translate>
  <!--T:57-->
# Installing grammars for tree-sitter
  # Option 1: Install all grammar packages
  pkgs.vimPlugins.nvim-treesitter.withAllGrammars
 
  # Option 2: Install specific grammar packages
  # (pkgs.vimPlugins.nvim-treesitter.withPlugins (p: [ p.c p.java ]))


You can also manually add Neovim to your packages. This should only be used if the two version above do not work for you.
  <!--T:58-->
# Option 3: Installing grammars without Nix
  # Installing grammar packages through the built-in command can lead to errors.  
  # The following Neovim command will install syntax highlighting for the C programming language: :TSInstall c
</translate>
];
</syntaxhighlight>
<translate>


  environment.systemPackages = [ pkgs.neovim ];
==== Frameworks ==== <!--T:18-->


=== Build Neovim using Nix ===
<!--T:45-->
If you prefer not to configure your system manually, NixOS offers several predefined configurations and community-supported options. Here are a few of them:


You can also compile Neovim using nix. For this, the Neovim GitHub page has more information on this:
<!--T:19-->
[https://github.com/neovim/neovim/wiki/Building-Neovim#nixos--nix Neovim Guide].
* [https://www.lazyvim.org/ LazyVim]<ref>LazyVim Team, "LazyVim", LazyVim Official Website, N/A. https://www.lazyvim.org/</ref>


The Neovim repository also contains a flake.
<!--T:46-->
You can run the master version via the following command:
* [https://astronvim.com/ AstroVim]<ref>AstroNvim Team, "AstroNvim", AstroNvim Official Website, N/A. https://astronvim.com/</ref>


nix run github:neovim/neovim?dir=contrib
<!--T:47-->
* [https://nvchad.com/ NVChad]<ref>NvChad Team, "NvChad", NvChad Official Website, N/A. https://nvchad.com/</ref>


Finally, there is a [https://github.com/nix-community/neovim-nightly-overlay Neovim Nightly Overlay].
<!--T:48-->
Another excellent option is [https://www.lunarvim.org/docs/installation LunarVim]<ref>LunarVim Team, "Installation", LunarVim Documentation, N/A. https://www.lunarvim.org/docs/installation</ref>. The development community describes it as "an IDE layer for Neovim with sane defaults." LunarVim includes an installer/updater for LSP modules and other features. It can be installed via the <code>lunarvim</code> package from <code>nixpkgs</code> and is started with the <code>lvim</code> command.


== Note on Lua plugins  ==
<!--T:20-->
The configuration for LunarVim is stored in <code>./config/lvim</code>.


Due to how the `runtimepath` for Lua modules is [https://github.com/nanotee/nvim-lua-guide#a-note-about-packages processed], your configuration may require <code>packadd! plugin-name</code> to require a module. A home-manager example:
== Troubleshooting == <!--T:59-->


  programs.neovim = {
== References == <!--T:27-->
    plugins = [
      {
        plugin = nvim-colorizer-lua
        config = '''''''
          packadd! nvim-colorizer.lua
          lua require 'colorizer'.setup()
        ''''''';
      }
    ];
  }


== See Also ==
</translate>
* [[Vim]]
* [[Tree sitters]]


[[Category:Applications]]
[[Category:Applications]]
[[Category:Text Editor]]

Latest revision as of 05:29, 16 August 2024

Neovim[1] is a highly extensible and open source text editor that aims to improve upon and modernize the popular Vim[2] editor. It's designed to be a drop-in replacement for Vim, maintaining compatibility with most Vim plugins and configurations while offering additional features and improvements. Neovim focuses on extensibility, usability, and performance.

It introduces a powerful plugin architecture that allows for asynchronous plugin execution, which can significantly improve performance for certain operations. It also includes a built-in terminal emulator, allowing users to run shell commands directly within the editor. The project emphasizes code quality and maintainability, with a clean, well-documented codebase that makes it easier for developers to contribute.

Installation

Using nix-shell

nix-shell -p neovim

Using Global Configuration

environment.systemPackages = [
  pkgs.neovim
];

After modifying your configuration, apply the changes by running:

sudo nixos-rebuild switch

Using Home Configuration

home.packages = [ 
  pkgs.neovim 
];

After updating your configuration, apply the changes by running:

home-manager switch

Configuration

Basic

# Global Configuration
programs.neovim = {
   enable = true;
   defaultEditor = true;
};

# Home Configuration
programs.neovim = {
  enable = true;
  extraConfig = ''
    set number relativenumber
  '';
};

Advanced

# Global Configuration
programs.neovim = {
  enable = true;
  defaultEditor = true;
  viAlias = true;
  vimAlias = true;
  configure = {
    customRC = ''
      set number
      set cc=80
      set list
      set listchars=tab:→\ ,space:·,nbsp:␣,trail:•,eol:¶,precedes:«,extends:»
      if &diff
        colorscheme blue
      endif
    '';
    packages.myVimPackage = with pkgs.vimPlugins; {
      start = [ ctrlp ];
    };
  };
};

# Home Configuration
# You have to add the line below to set it as the default editor:
environment.variables.EDITOR = "nvim";

Tips and Tricks

Location of Options

The home manager options are defined in the following Home Manager Options Manual[3].

The global options are listed on MyNixOS[4].

Package Variations

Have a look at the Neovim Nightly Overlay[5] to install the most recent current nightly version of Neovim.

You can run the master version via the following command:

nix run "github:nix-community/neovim-nightly-overlay"

Plugin Management

plugins = [
  # Example Plugin: nvim-tree-lua
  pkgs.vimPlugins.nvim-tree-lua

  # Example Plugin: vim-startify with configuration
  {
    plugin = pkgs.vimPlugins.vim-startify;
    config = "let g:startify_change_to_vcs_root = 0";
  }

  # Example Plugin: nvim-colorizer-lua with Lua config
  # Due to how the runtimepath for Lua modules is processed, your configuration may require 
  # packadd! plugin-name to require a module. A home-manager example:
  {
    plugin = pkgs.vimPlugins.nvim-colorizer-lua;
    config = ''
      packadd! nvim-colorizer.lua
      lua << END
        require 'colorizer'.setup {
          '*'; -- Highlight all files, but customize some others.
          '!vim'; -- Exclude vim from highlighting.
        }
      END
    '';
  }

  # Example Plugin: nvim-treesitter with Lua config
  {
    plugin = pkgs.vimPlugins.nvim-treesitter;
    config = ''
      packadd! nvim-treesitter
      lua <<EOF
        require'nvim-treesitter.configs'.setup {
          highlight = {
            enable = true,              -- false will disable the whole extension
            disable = {},               -- list of languages that will be disabled
          },
          incremental_selection = {
            enable = true,
            keymaps = {
              init_selection = "gnn",
              node_incremental = "grn",
              scope_incremental = "grc",
              node_decremental = "grm",
            },
          },
          textobjects = {
            select = {
              enable = true,
              lookahead = true,
              keymaps = {
                ["af"] = "@function.outer",
                ["if"] = "@function.inner",
                ["ac"] = "@class.outer",
                ["ic"] = "@class.inner",
              },
            },
          },
        }
      EOF
    '';
  }

  # Installing grammars for tree-sitter
  # Option 1: Install all grammar packages
  pkgs.vimPlugins.nvim-treesitter.withAllGrammars
  
  # Option 2: Install specific grammar packages
  # (pkgs.vimPlugins.nvim-treesitter.withPlugins (p: [ p.c p.java ]))

  # Option 3: Installing grammars without Nix
  # Installing grammar packages through the built-in command can lead to errors. 
  # The following Neovim command will install syntax highlighting for the C programming language: :TSInstall c
];

Frameworks

If you prefer not to configure your system manually, NixOS offers several predefined configurations and community-supported options. Here are a few of them:

Another excellent option is LunarVim[9]. The development community describes it as "an IDE layer for Neovim with sane defaults." LunarVim includes an installer/updater for LSP modules and other features. It can be installed via the lunarvim package from nixpkgs and is started with the lvim command.

The configuration for LunarVim is stored in ./config/lvim.

Troubleshooting

References

  1. Neovim Team, "Home - Neovim", Neovim Official Website, N/A. https://neovim.io/
  2. NixOS Wiki, Vim. https://wiki.nixos.org/wiki/Vim
  3. Nix Community, "Home Manager Option Search", Nix Community GitHub Pages, N/A. https://nix-community.github.io/home-manager/options.xhtml#opt-programs.neovim.enable
  4. MyNixOS Team, "Search: nixpkgs/option/programs.neovim", MyNixOS, N/A. https://mynixos.com/search?q=nixpkgs%2Foption%2Fprograms.neovim
  5. Nix Community, "neovim-nightly-overlay", GitHub, N/A. https://github.com/nix-community/neovim-nightly-overlay
  6. LazyVim Team, "LazyVim", LazyVim Official Website, N/A. https://www.lazyvim.org/
  7. AstroNvim Team, "AstroNvim", AstroNvim Official Website, N/A. https://astronvim.com/
  8. NvChad Team, "NvChad", NvChad Official Website, N/A. https://nvchad.com/
  9. LunarVim Team, "Installation", LunarVim Documentation, N/A. https://www.lunarvim.org/docs/installation