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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>neovim-flake Manual</title><link rel="stylesheet" type="text/css" href="style.css" /><script src="highlight.min.js" type="text/javascript"></script><script src="highlight.load.js" type="text/javascript"></script><meta name="generator" content="DocBook XSL Stylesheets V1.79.2" /><link rel="home" href="index.html" title="neovim-flake Manual" /><link rel="next" href="options.html" title="Appendix A. Configuration Options" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">neovim-flake Manual</th></tr><tr><td width="20%" align="left"> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="options.html">Next</a></td></tr></table><hr /></div><div class="book"><div class="titlepage"><div><div><h1 class="title"><a id="book-neovim-flake-manual"></a>neovim-flake Manual</h1></div></div><hr /></div><div class="toc"><dl class="toc"><dt><span class="preface"><a href="index.html#id-1.2">Preface</a></span></dt><dt><span class="chapter"><a href="index.html#ch-try-it-out">1. Try it out</a></span></dt><dd><dl><dt><span class="section"><a href="index.html#sec-using-prebuild-configs">1.1. Using Prebuilt Configs</a></span></dt><dt><span class="section"><a href="index.html#sec-available-configs">1.2. Available Configs</a></span></dt><dd><dl><dt><span class="section"><a href="index.html#_nix">1.2.1. Nix</a></span></dt><dt><span class="section"><a href="index.html#_tidal">1.2.2. Tidal</a></span></dt><dt><span class="section"><a href="index.html#_maximal">1.2.3. Maximal</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="index.html#ch-default-configs">2. Default Configs</a></span></dt><dd><dl><dt><span class="section"><a href="index.html#sec-default-tidal">2.1. Tidal Cycles</a></span></dt><dt><span class="section"><a href="index.html#sec-default-nix">2.2. Nix</a></span></dt><dt><span class="section"><a href="index.html#sec-default-maximal">2.3. Maximal</a></span></dt></dl></dd><dt><span class="chapter"><a href="index.html#ch-custom-configuration">3. Custom Configuration</a></span></dt><dt><span class="chapter"><a href="index.html#ch-custom-package">4. Custom Neovim Package</a></span></dt><dt><span class="chapter"><a href="index.html#ch-custom-plugins">5. Custom Plugins</a></span></dt><dd><dl><dt><span class="section"><a href="index.html#sec-new-method">5.1. New Method</a></span></dt><dt><span class="section"><a href="index.html#sec-old-method">5.2. Old Method</a></span></dt></dl></dd><dt><span class="chapter"><a href="index.html#ch-hm-module">6. Home Manager</a></span></dt><dt><span class="chapter"><a href="index.html#ch-languages">7. Language Support</a></span></dt><dd><dl><dt><span class="section"><a href="index.html#_lsp_custom_packages_command">7.1. LSP Custom Packages/Command</a></span></dt></dl></dd><dt><span class="chapter"><a href="index.html#ch-hacking">8. Hacking neovim-flake</a></span></dt><dd><dl><dt><span class="section"><a href="index.html#sec-contrib-getting-started">8.1. Getting started</a></span></dt><dt><span class="section"><a href="index.html#sec-guidelines">8.2. Guidelines</a></span></dt><dd><dl><dt><span class="section"><a href="index.html#sec-documentation">8.2.1. Add adequate documentation</a></span></dt><dt><span class="section"><a href="index.html#sec-guidelines-code-style">8.2.2. Format your code</a></span></dt><dt><span class="section"><a href="index.html#sec-guidelines-commit-message-style">8.2.3. Format your commit messages</a></span></dt><dt><span class="section"><a href="index.html#sec-commit-style">8.2.4. Commits</a></span></dt><dt><span class="section"><a href="index.html#sec-code-style">8.2.5. Code Style</a></span></dt></dl></dd><dt><span class="section"><a href="index.html#sec-testing">8.3. Testing Your Changes</a></span></dt><dt><span class="section"><a href="index.html#sec-keybinds">8.4. Keybinds</a></span></dt><dd><dl><dt><span class="section"><a href="index.html#sec-custom-key-mappings">8.4.1. Custom Key Mappings Support for a Plugin</a></span></dt></dl></dd><dt><span class="section"><a href="index.html#sec-additional-plugins">8.5. Adding Plugins</a></span></dt></dl></dd><dt><span class="appendix"><a href="options.html">A. Configuration Options</a></span></dt></dl></div><div class="preface"><div class="titlepage"><div><div><h1 class="title"><a id="id-1.2"></a>Preface</h1></div></div></div><p>
If you believe your problem is caused by a bug in neovim-flake then please consider reporting it over
<a class="link" href="tps://github.com/notashelf/neovim-flake/issues" target="_top">the neovim-flake issue tracker</a>.
Bugfixes, feature additions and upstream changes are welcome over
<a class="link" href="https://github.com/notashelf/neovim-flake/pulls" target="_top">the neovim-flake pull requests tab</a>.
</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="ch-try-it-out"></a>Chapter 1. Try it out</h1></div></div></div><p>Thanks to the portability of Nix, you can try out neovim-flake without actually installing it to your machine.
Below are the commands you may run to try out different configurations provided by this flake. As of v0.5, three
configurations are provided:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
Nix
</li><li class="listitem">
Tidal
</li><li class="listitem">
Maximal
</li></ul></div><p>You may try out any of the provided configurations using the <code class="literal">nix run</code> command on a system where Nix is installed.</p><pre class="programlisting console">$ cachix use neovim-flake # Optional: it'll save you CPU resources and time
$ nix run github:notashelf/neovim-flake#nix # will run the default minimal configuration</pre><p>Do keep in mind that this is <span class="strong"><strong>susceptible to garbage collection</strong></span> meaning it will be removed from your Nix store
once you garbage collect. If you wish to install neovim-flake, please take a look at
<a class="link" href="index.html#ch-custom-configuration" title="Chapter 3. Custom Configuration">custom-configuration</a> or <a class="link" href="index.html#ch-hm-module" title="Chapter 6. Home Manager">home-manager</a> sections for installation
instructions.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-using-prebuild-configs"></a>1.1. Using Prebuilt Configs</h2></div></div></div><pre class="programlisting console">$ nix run github:notashelf/neovim-flake#nix
$ nix run github:notashelf/neovim-flake#tidal
$ nix run github:notashelf/neovim-flake#maximal</pre></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-available-configs"></a>1.2. Available Configs</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_nix"></a>1.2.1. Nix</h3></div></div></div><p><code class="literal">Nix</code> configuration by default provides LSP/diagnostic support for Nix alongisde a set of visual and functional plugins.
By running <code class="literal">nix run .</code>, which is the default package, you will build Neovim with this config.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_tidal"></a>1.2.2. Tidal</h3></div></div></div><p>Tidal is an alternative config that adds vim-tidal on top of the plugins from the Nix configuration.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_maximal"></a>1.2.3. Maximal</h3></div></div></div><p><code class="literal">Maximal</code> is the ultimate configuration that will enable support for more commonly used language as well as additional
complementary plugins. Keep in mind, however, that this will pull a lot of dependencies.</p><p>You are <span class="strong"><strong>strongly</strong></span> recommended to use the binary cache if you would like to try the Maximal configuration.</p></div></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="ch-default-configs"></a>Chapter 2. Default Configs</h1></div></div></div><p>While you can configure neovim-flake yourself using the builder, here are a few default configurations you can use.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-default-tidal"></a>2.1. Tidal Cycles</h2></div></div></div><pre class="programlisting console">$ nix run github:notashelf/neovim-flake#tidal file.tidal</pre><p>Utilizing <a class="link" href="https://github.com/tidalcycles/vim-tidal" target="_top">vim-tidal</a> and mitchmindtree’s fantastic <a class="link" href="https://github.com/mitchmindtree/tidalcycles.nix" target="_top">tidalcycles.nix</a> start playing with tidal cycles in a single command.</p><p>In your tidal file, type a cycle e.g. <code class="literal">d1 $ s "drum"</code> and then press <span class="emphasis"><em>ctrl+enter</em></span>. Super collider with superdirt, and a modified GHCI with tidal will start up and begin playing. Note, you need jack enabled on your system. If you are using pipewire, its as easy as setting <code class="literal">services.pipewire.jack.enable = true</code>.</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-default-nix"></a>2.2. Nix</h2></div></div></div><pre class="programlisting console">$ nix run github:notashelf/neovim-flake#nix test.nix</pre><p>Enables all the of neovim plugins, with language support for specifically Nix. This lets you see what a fully configured neovim setup looks like without downloading a whole bunch of language servers and associated tools.</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-default-maximal"></a>2.3. Maximal</h2></div></div></div><pre class="programlisting console">$ nix shell github:notashelf/neovim-flake#maximal test.nix</pre><p>It is the same fully configured neovim as with the <a class="link" href="index.html#sec-default-nix" title="2.2. Nix">Nix</a> config, but with every supported language enabled.</p><div class="note"><h3 class="title">Note</h3><p>Running the maximal config will download <span class="strong"><strong>a lot</strong></span> of packages as it is downloading language servers, formatters, and more.</p></div></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="ch-custom-configuration"></a>Chapter 3. Custom Configuration</h1></div></div></div><p>Custom configuration is done with the <code class="literal">neovimConfiguration</code> while using the flake as a standalone package.
It takes in the configuration as a module. The output of the configuration function is an attrset.</p><pre class="programlisting nix">{
options = "The options that were available to configure";
config = "The outputted configuration";
pkgs = "The package set used to evaluate the module";
neovim = "The built neovim package";
}</pre><p>The following is an example of a barebones vim configuration with the default theme enabled.</p><pre class="programlisting nix">{
inputs.neovim-flake = {
url = "github:notashelf/neovim-flake";
inputs.nixpkgs.follows = "nixpkgs";
};
outputs = {nixpkgs, neovim-flake, ...}: let
system = "x86_64-linux";
pkgs = nixpkgs.legacyPackages.${system};
configModule = {
# Add any custom options (and feel free to upstream them!)
# options = ...
config.vim = {
theme.enable = true;
};
};
customNeovim = neovim-flake.lib.neovimConfiguration {
modules = [configModule];
inherit pkgs;
};
in {
# this will make the package available as a flake input
packages.${system}.neovim = customNeovim.neovim;
# this is an example nixosConfiguration using the built neovim package
nixosConfigurations = {
yourHostName = nixpkgs.lib.nixosSystem {
# ...
modules = [
./configuration.nix # or whatever your configuration is
# this will make wrapped neovim available in your system packages
{environment.systemPackages = [customNeovim.neovim];}
];
# ...
};
};
};
}</pre><p>Your built neovim configuration can be exposed as a flake output, or be added to your system packages to make
it available across your system. You may also consider passing the flake output to home-manager to make it available
to a specific user <span class="strong"><strong>without</strong></span> using the home-manager module.</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="ch-custom-package"></a>Chapter 4. Custom Neovim Package</h1></div></div></div><p>As of v0.5, you may now specify the neovim package that will be wrapped with your configuration. This is done with the <code class="literal">vim.package</code> option.</p><pre class="programlisting nix">{inputs, pkgs, ...}: {
# using the neovim-nightly overlay
config.vim.package = inputs.neovim-overlay.packages.${pkgs.system}.neovim;
}</pre><p>The neovim-nightly-overlay always exposes an unwrapped package. If using a different source, you are highly recommended to get an "unwrapped" version of the neovim package,similar to <code class="literal">neovim-unwrapped</code> in nixpkgs.</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="ch-custom-plugins"></a>Chapter 5. Custom Plugins</h1></div></div></div><p>You can use custom plugins, before they are implemented in the flake.
To add a plugin, you need to add it to your config’s <code class="literal">config.vim.startPlugins</code> array.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-new-method"></a>5.1. New Method</h2></div></div></div><p>As of version 0.5, we have a more extensive API for configuring plugins, under <code class="literal">vim.extraPlugins</code>.</p><p>Instead of using DAGs exposed by the library, you may use the extra plugin module as follows:</p><pre class="programlisting nix">{
config.vim.extraPlugins = with pkgs.vimPlugins; {
aerial = {
package = aerial-nvim;
setup = ''
require('aerial').setup {
-- some lua configuration here
}
'';
};
harpoon = {
package = harpoon;
setup = "require('harpoon').setup {}";
after = ["aerial"];
};
};
}</pre></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-old-method"></a>5.2. Old Method</h2></div></div></div><p>Users who have not yet updated to 0.5, or prefer a more hands-on approach may use the old method where the load order
of the plugins is determined by DAGs.</p><pre class="programlisting nix">{
# fetch plugin source from GitHub and add it to startPlugins
config.vim.startPlugins = [
(pkgs.fetchFromGitHub {
owner = "FrenzyExists";
repo = "aquarium-vim";
rev = "d09b1feda1148797aa5ff0dbca8d8e3256d028d5";
sha256 = "CtyEhCcGxxok6xFQ09feWpdEBIYHH+GIFVOaNZx10Bs=";
})
];
}</pre><p>However, just making the plugin available might not be enough. In that case, you can write custom vimscript
or lua config, using <code class="literal">config.vim.configRC</code> or <code class="literal">config.vim.luaConfigRC</code> respectively.
These options are attribute sets, and you need to give the configuration you’re adding some name, like this:</p><pre class="programlisting nix">{
# this will create an "aquarium" section in your init.vim with the contents of your custom config
# which will be *appended* to the rest of your configuration, inside your init.vim
config.vim.configRC.aquarium = "colorscheme aquiarum";
}</pre><p>Note: If your configuration needs to be put in a specific place in the config, you can use functions from
<code class="literal">inputs.neovim-flake.lib.nvim.dag</code> to order it.
Refer to <a class="link" href="https://github.com/nix-community/home-manager/blob/master/modules/lib/dag.nix" target="_top">https://github.com/nix-community/home-manager/blob/master/modules/lib/dag.nix</a> to find out more about
the DAG system.</p><p>Also, if you successfully made your plugin work, please make a PR to add it to the flake, or open an issue
with your findings so that we can make it available for everyone easily.</p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="ch-hm-module"></a>Chapter 6. Home Manager</h1></div></div></div><p>The Home Manager module allows us to customize the different <code class="literal">vim</code> options from inside the home-manager configuration
and it is the preferred way of configuring neovim-flake, both on NixOS and non-NixOS systems.</p><p>To use it, we first add the input flake.</p><pre class="programlisting nix">{
neovim-flake = {
url = github:notashelf/neovim-flake;
# you can override input nixpkgs
inputs.nixpkgs.follows = "nixpkgs";
# you can also override individual plugins
# i.e inputs.obsidian-nvim.follows = "obsidian-nvim"; # &lt;- obsidian nvim needs to be in your inputs
};
}</pre><p>Followed by importing the home-manager module somewhere in your configuration.</p><pre class="programlisting nix">{
# assuming neovim-flake is in your inputs and inputs is in the argset
imports = [ inputs.neovim-flake.homeManagerModules.default ];
}</pre><p>An example installation for standalone home-manager would look like this:</p><pre class="programlisting nix">{
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
home-manager.url = "github:nix-community/home-manager";
stylix.url = "github:notashelf/neovim-flake";
};
outputs = { nixpkgs, home-manager, neovim-flake ... }: let
system = "x86_64-linux"; in {
# ↓ this is the home-manager output in the flake schema
homeConfigurations."yourUsername»" = home-manager.lib.homeManagerConfiguration {
pkgs = nixpkgs.legacyPackages.x86_64-linux;
modules = [
neovim-flake.homeManagerModules.default # &lt;- this imports the home-manager module that provides the options
./home.nix # your home-manager configuration, probably where you will want to add programs.neovim-flake options
];
};
};
}</pre><p>Once the module is imported, we will be able to define the following options (and much more) from inside the
home-manager configuration.</p><pre class="programlisting nix">{
programs.neovim-flake = {
enable = true;
# your settings need to go into the settings attribute set
# most settings are documented in the appendix
settings = {
vim.viAlias = false;
vim.vimAlias = true;
vim.lsp = {
enable = true;
};
};
};
}</pre><div class="note"><h3 class="title">Note</h3><p>You may find all avaliable options in the <a class="link" href="https://notashelf.github.io/neovim-flake/options" target="_top">appendix</a></p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="ch-languages"></a>Chapter 7. Language Support</h1></div></div></div><p>Language specific support means there is a combination of language specific plugins, <code class="literal">treesitter</code> support, <code class="literal">nvim-lspconfig</code> language servers, and <code class="literal">null-ls</code> integration. This gets you capabilities ranging from autocompletion to formatting to diagnostics. The following languages have sections under the <code class="literal">vim.languages</code> attribute. See the configuration docs for details.</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
Rust: <a class="xref" href="options.html#opt-vim.languages.rust.enable"><code class="option">vim.languages.rust.enable</code></a>
</li><li class="listitem">
Nix: <a class="xref" href="options.html#opt-vim.languages.nix.enable"><code class="option">vim.languages.nix.enable</code></a>
</li><li class="listitem">
SQL: <a class="xref" href="options.html#opt-vim.languages.sql.enable"><code class="option">vim.languages.sql.enable</code></a>
</li><li class="listitem">
C/C++: <a class="xref" href="options.html#opt-vim.languages.clang.enable"><code class="option">vim.languages.clang.enable</code></a>
</li><li class="listitem">
Typescript/Javascript: <a class="xref" href="options.html#opt-vim.languages.ts.enable"><code class="option">vim.languages.ts.enable</code></a>
</li><li class="listitem">
Python: <a class="xref" href="options.html#opt-vim.languages.python.enable"><code class="option">vim.languages.python.enable</code></a>:
</li><li class="listitem">
Zig: <a class="xref" href="options.html#opt-vim.languages.zig.enable"><code class="option">vim.languages.zig.enable</code></a>
</li><li class="listitem">
Markdown: <a class="xref" href="options.html#opt-vim.languages.markdown.enable"><code class="option">vim.languages.markdown.enable</code></a>
</li><li class="listitem">
HTML: <a class="xref" href="options.html#opt-vim.languages.html.enable"><code class="option">vim.languages.html.enable</code></a>
</li><li class="listitem">
SQL: <a class="xref" href="options.html#opt-vim.languages.sql.enable"><code class="option">vim.languages.sql.enable</code></a>
</li><li class="listitem">
Dart: <a class="xref" href="options.html#opt-vim.languages.dart.enable"><code class="option">vim.languages.dart.enable</code></a>
</li><li class="listitem">
Go: <a class="xref" href="options.html#opt-vim.languages.go.enable"><code class="option">vim.languages.go.enable</code></a>
</li><li class="listitem">
Lua: <a class="xref" href="options.html#opt-vim.languages.lua.enable"><code class="option">vim.languages.lua.enable</code></a>
</li><li class="listitem">
PHP: <a class="xref" href="options.html#opt-vim.languages.php.enable"><code class="option">vim.languages.php.enable</code></a>
</li></ul></div><p>Adding support for more languages, and improving support for existing ones are great places
where you can contribute with a PR.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_lsp_custom_packages_command"></a>7.1. LSP Custom Packages/Command</h2></div></div></div><p>In any of the <code class="literal">opt.languages.&lt;language&gt;.lsp.package</code> options you can provide your own LSP package, or provide
the command to launch the language server, as a list of strings.</p><p>You can use this to skip automatic installation of a language server, and instead
use the one found in your <code class="literal">$PATH</code> during runtime, for example:</p><pre class="programlisting nix">vim.languages.java = {
lsp = {
enable = true;
package = ["jdt-language-server" "-data" "~/.cache/jdtls/workspace"];
};
}</pre></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="ch-hacking"></a>Chapter 8. Hacking neovim-flake</h1></div></div></div><p>neovim-flake is designed for developers as much as it is for the end user. I would like any potential contributor
to be able to propagate their desired changes into the repository without the extra effort. As such, below are guides
(and guidelines) to streamline the contribution process and ensure that your valuable input seamlessly integrates
into neovim-flake’s development without leaving question marks in your head.</p><p>This section is mainly directed towards those who wish to contribute code into neovim-flake. If you wish to instead
report a bug or discuss a potential feature implementation, first look among the already <a class="link" href="https://github.com/notashelf/neovim-flake/issues" target="_top">open issues</a> and
if no matching issue exists you may open a <a class="link" href="https://github.com/notashelf/neovim-flake/issues/new" target="_top">new issue</a> and describe your problem/request. While creating an
issue, please try to include as much information as you can, ideally also include relevant context in which an issue
occurs or a feature should be implemented.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-contrib-getting-started"></a>8.1. Getting started</h2></div></div></div><p>You naturally would like to start by forking the repository. If you are new to git, have a look at GitHub’s
<a class="link" href="https://help.github.com/articles/fork-a-repo/" target="_top">Fork a repo guide</a> for instructions on how you can do this. Once you have a fork of neovim-flake
you should create a branch starting at the most recent <code class="literal">main</code> branch.
Give your branch a reasonably descriptive name, suffixed by its type - i.e <code class="literal">feature/debugger</code> or <code class="literal">fix/pesky-bug</code>.</p><p>Implement your changes and commit them to the newly created branch and when you are happy with the result and positive
that it fulfills <a class="xref" href="index.html#sec-guidelines" title="8.2. Guidelines">Section 8.2, “Guidelines”</a>. Once you are confident everything is in order, push the branch to GitHub and</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-guidelines"></a>8.2. Guidelines</h2></div></div></div><p>If your contribution tightly follows the guidelines, then there is a good chance it will be merged without too much
trouble. Some of the guidelines will be strictly enforced, others will remain as gentle nudges towards the correct
direction. As we have no automated system enforcing those guidelines, please try to double check your changes before
making your pull request in order to avoid "faulty" code slipping by.</p><p>If you are uncertain how these rules affect the change you would like to make then feel free to start a
discussion in the <a class="link" href="https://github.com/NotAShelf/neovim-flake/discussions" target="_top">discussions tab</a> ideally (but not necessarily) before you start developing.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="sec-documentation"></a>8.2.1. Add adequate documentation</h3></div></div></div><p>Most, if not all, changes warrant changes to the documentation. Module options should be documented with
<a class="link" href="https://nixos.org/manual/nixpkgs/unstable/#sec-contributing-markup" target="_top">Nixpkgs-flavoured Markdown</a>, albeit with exceptions.
neovim-flake is itself documented using a combination of <a class="link" href="https://tdg.docbook.org/" target="_top">DocBook</a> and <a class="link" href="https://asciidoc.org/" target="_top">AsciiDoc</a> conventions.</p><p>The HTML version of this manual containing both the module option descriptions and the documentation of neovim-flake
(such as this page) can be generated and opened by typing the following in a shell within a clone of the
neovim-flake Git repository:</p><pre class="programlisting console">$ nix build .#docs-html
$ xdg-open ./result/share/doc/neovim-flake/index.html</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="sec-guidelines-code-style"></a>8.2.2. Format your code</h3></div></div></div><p>Make sure your code is formatted as described in <a class="xref" href="index.html#sec-code-style" title="8.2.5. Code Style">Section 8.2.5, “Code Style”</a>. To maintain consistency throughout the project
you are encouraged to browse through existing code and adopt its style also in new code.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="sec-guidelines-commit-message-style"></a>8.2.3. Format your commit messages</h3></div></div></div><p>Similar to <a class="xref" href="index.html#sec-guidelines-code-style" title="8.2.2. Format your code">Section 8.2.2, “Format your code”</a> we encourage a consistent commit message format as described
in <a class="xref" href="index.html#sec-commit-style" title="8.2.4. Commits">Section 8.2.4, “Commits”</a>.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="sec-commit-style"></a>8.2.4. Commits</h3></div></div></div><p>The commits in your pull request should be reasonably self-contained. Which means each and every commit in
a pull request should make sense both on its own and in general context. That is, a second commit should not resolve
an issue that is introduced in an earlier commit. In particular, you will be asked to amend any commit that
introduces syntax errors or similar problems even if they are fixed in a later commit.</p><p>The commit messages should follow the <a class="link" href="https://cbea.ms/git-commit/#seven-rules" target="_top">seven rules</a>, except for "Capitalize the subject line".
We also ask you to include the affected code component or module in the first line.
A commit message ideally, but not necessarily, follow the given template from home-manager’s own documentation</p><pre class="screen">{component}: {description}
{long description}</pre><p>where <code class="literal">{component}</code> refers to the code component (or module) your change affects, <code class="literal">{description}</code> is a very brief
description of your change, and <code class="literal">{long description}</code> is an optional clarifying description. As a rare exception, if
there is no clear component, or your change affects many components, then the <code class="literal">{component}</code> part is optional.
See <a class="xref" href="index.html#ex-commit-message" title="Example 8.1. Compliant commit message">Example 8.1, “Compliant commit message”</a> for a commit message that fulfills these requirements.</p><div class="example"><a id="ex-commit-message"></a><p class="title"><strong>Example 8.1. Compliant commit message</strong></p><div class="example-contents"><p>The commit <a class="link" href="https://github.com/nix-community/home-manager/commit/69f8e47e9e74c8d3d060ca22e18246b7f7d988ef" target="_top">69f8e47e9e74c8d3d060ca22e18246b7f7d988ef</a> contains the commit message</p><pre class="screen">starship: allow running in Emacs if vterm is used
The vterm buffer is backed by libvterm and can handle Starship prompts
without issues.</pre></div></div><br class="example-break" /><p>Long description can be ommitted if the change is too simple to warrant it. A minor fix in spelling or a formatting
change does not warrant long description, however, a module addition or removal does as you would like to provide the
relevant context for your changes.</p><p>Finally, when adding a new module, say <code class="literal">modules/foo.nix</code>, we use the fixed commit format <code class="literal">foo: add module</code>.
You can, of course, still include a long description if you wish.</p><p>In case of nested modules, i.e <code class="literal">modules/languages/java.nix</code> you are recommended to contain the parent as well - for
example <code class="literal">languages/java: some major change</code>.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="sec-code-style"></a>8.2.5. Code Style</h3></div></div></div><p><span class="strong"><strong>Treewide</strong></span>
Keep lines at a reasonable width, ideally 80 characters or less. This also applies to string literals and module
descriptions and documentation.</p><p><span class="strong"><strong>Nix</strong></span>
neovim-flake is formatted by the <a class="link" href="https://github.com/kamadorueda/alejandra" target="_top">alejandra</a> tool and the formatting is checked in the pull
request and push workflows. Run the <code class="literal">nix fmt</code> command inside the project repository before submitting your
pull request.</p><p>While Alejandra is mostly opinionated on how code looks after formatting, certain changes are done at the
user’s discretion based on how the original code was structured.</p><p>Please use one line code for attribute sets that contain only one subset.
For example:</p><pre class="programlisting nix"># parent modules should always be unfolded
# which means module = { value = ... } instead of module.value = { ... }
module = {
value = mkEnableOption "some description" // { default = true; }; # merges can be done inline where possible
# same as parent modules, unfold submodules
subModule = {
# this is an option that contains more than one nested value
someOtherValue = mkOption {
type = lib.types.bool;
description = "Some other description"
default = true;
};
};
}</pre><p>If you move a line down after the merge operator, Alejandra will automatically unfold the whole merged attrset
for you, which we <span class="strong"><strong>do not</strong></span> want.</p><pre class="programlisting nix">module = {
key = mkEnableOption "some description" // {
default = true; # we want this to be inline
};
# ...
}</pre><p>For lists, it is mostly up to your own discretion how you want to format them, but please try to unfold lists if
they contain multiple items and especially if they are to include comments.</p><pre class="programlisting nix"># this is ok
acceptableList = [
item1 # comment
item2
item3 # some other comment
item4
];
# this is not ok
listToBeAvoided = [item1 item2 /* comment */ item3 item4];
# this is ok
singleItemList = [item1];</pre></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-testing"></a>8.3. Testing Your Changes</h2></div></div></div><p>Once you have made your changes, you will need to test them throughly. If it is a module, add your module option to
<code class="literal">configuration.nix</code> (located in the root of this project) inside <code class="literal">neovimConfiguration</code>. Enable it, and then run the
maximal configuration with <code class="literal">nix run .#maximal -Lv</code> to check for build errors. If neovim opens in the current directory
without any error messages (you can check the output of <code class="literal">:messages</code> inside neovim to see if there are any errors), then
your changes are good to go. Open your pull request, and it will be reviewed as soon as posssible.</p><p>If it is not a new module, but a change to an existing one, then make sure the module you have changed is enabled in the
maximal configuration by editing <code class="literal">configuration.nix</code>, and then run it with <code class="literal">nix run .#maximal -Lv</code>. Same procedure as
adding a new module will apply here.</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-keybinds"></a>8.4. Keybinds</h2></div></div></div><p>As of 0.4, there exists an API for writing your own keybinds and a couple of useful utility functions are available in
the <a class="link" href="https://github.com/NotAShelf/neovim-flake/tree/main/lib" target="_top">extended standard library</a>. The following section contains
a general overview to how you may utilize said functions.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="sec-custom-key-mappings"></a>8.4.1. Custom Key Mappings Support for a Plugin</h3></div></div></div><p>To set a mapping, you should define it in <code class="literal">vim.maps.&lt;&lt;mode&gt;&gt;</code>.
The available modes are:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
normal
</li><li class="listitem">
insert
</li><li class="listitem">
select
</li><li class="listitem">
visual
</li><li class="listitem">
terminal
</li><li class="listitem">
normalVisualOp
</li><li class="listitem">
visualOnly
</li><li class="listitem">
operator
</li><li class="listitem">
insertCommand
</li><li class="listitem">
lang
</li><li class="listitem">
command
</li></ul></div><p>An example, simple keybinding, can look like this:</p><pre class="programlisting nix">{
vim.maps.normal = {
"&lt;leader&gt;wq" = {
action = ":wq&lt;CR&gt;";
silent = true;
desc = "Save file and quit";
};
};
}</pre><p>There are many settings available in the options. Please refer to the <a class="link" href="https://notashelf.github.io/neovim-flake/options.html#opt-vim.maps.command._name_.action" target="_top">documentation</a> to see a list of them.</p><p><code class="literal">neovim-flake</code> provides a list of helper commands, so that you don’t have to write the mapping attribute sets every
time:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
<code class="literal">mkBinding = key: action: desc:</code> - makes a basic binding, with <code class="literal">silent</code> set to true.
</li><li class="listitem">
<code class="literal">mkExprBinding = key: action: desc:</code> - makes an expression binding, with <code class="literal">lua</code>, <code class="literal">silent</code>, and <code class="literal">expr</code> set to true.
</li><li class="listitem">
<code class="literal">mkLuaBinding = key: action: desc:</code> - makes an expression binding, with <code class="literal">lua</code>, and <code class="literal">silent</code> set to true.
</li></ul></div><p>Note that the Lua in these bindings is actual Lua, not pasted into a <code class="literal">:lua</code> command.
Therefore, you either pass in a function like <code class="literal">require('someplugin').some_function</code>, without actually calling it,
or you define your own function, like <code class="literal">function() require('someplugin').some_function() end</code>.</p><p>Additionally, to not have to repeat the descriptions, there’s another utility function with its own set of functions:</p><pre class="programlisting nix"># Utility function that takes two attrsets:
# { someKey = "some_value" } and
# { someKey = { description = "Some Description"; }; }
# and merges them into
# { someKey = { value = "some_value"; description = "Some Description"; }; }
addDescriptionsToMappings = actualMappings: mappingDefinitions:</pre><p>This function can be used in combination with the same <code class="literal">mkBinding</code> functions as above, except they only take two
arguments - <code class="literal">binding</code> and <code class="literal">action</code>, and have different names:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
<code class="literal">mkSetBinding = binding: action:</code> - makes a basic binding, with <code class="literal">silent</code> set to true.
</li><li class="listitem">
<code class="literal">mkSetExprBinding = binding: action:</code> - makes an expression binding, with <code class="literal">lua</code>, <code class="literal">silent</code>, and <code class="literal">expr</code> set to true.
</li><li class="listitem">
<code class="literal">mkSetLuaBinding = binding: action:</code> - makes an expression binding, with <code class="literal">lua</code>, and <code class="literal">silent</code> set to true.
</li></ul></div><p>You can read the source code of some modules to see them in action, but their usage should look something like this:</p><pre class="programlisting nix"># plugindefinition.nix
{lib, ...}:
with lib; {
options.vim.plugin = {
enable = mkEnableOption "Enable plugin";
# Mappings should always be inside an attrset called mappings
mappings = {
# mkMappingOption is a helper function from lib,
# that takes a description (which will also appear in which-key),
# and a default mapping (which can be null)
toggleCurrentLine = mkMappingOption "Toggle current line comment" "gcc";
toggleCurrentBlock = mkMappingOption "Toggle current block comment" "gbc";
toggleOpLeaderLine = mkMappingOption "Toggle line comment" "gc";
toggleOpLeaderBlock = mkMappingOption "Toggle block comment" "gb";
toggleSelectedLine = mkMappingOption "Toggle selected comment" "gc";
toggleSelectedBlock = mkMappingOption "Toggle selected block" "gb";
};
};
}</pre><pre class="programlisting nix"># config.nix
{
pkgs,
config,
lib,
...
}:
with lib;
with builtins; let
cfg = config.vim.plugin;
self = import ./plugindefinition.nix {inherit lib;};
mappingDefinitions = self.options.vim.plugin;
# addDescriptionsToMappings is a helper function from lib,
# that merges mapping values and their descriptions
# into one nice attribute set
mappings = addDescriptionsToMappings cfg.mappings mappingDefinitions;
in {
config = mkIf (cfg.enable) {
# ...
vim.maps.normal = mkMerge [
# mkSetBinding is another helper function from lib,
# that actually adds the mapping with a description.
(mkSetBinding mappings.findFiles "&lt;cmd&gt; Telescope find_files&lt;CR&gt;")
(mkSetBinding mappings.liveGrep "&lt;cmd&gt; Telescope live_grep&lt;CR&gt;")
(mkSetBinding mappings.buffers "&lt;cmd&gt; Telescope buffers&lt;CR&gt;")
(mkSetBinding mappings.helpTags "&lt;cmd&gt; Telescope help_tags&lt;CR&gt;")
(mkSetBinding mappings.open "&lt;cmd&gt; Telescope&lt;CR&gt;")
(mkSetBinding mappings.gitCommits "&lt;cmd&gt; Telescope git_commits&lt;CR&gt;")
(mkSetBinding mappings.gitBufferCommits "&lt;cmd&gt; Telescope git_bcommits&lt;CR&gt;")
(mkSetBinding mappings.gitBranches "&lt;cmd&gt; Telescope git_branches&lt;CR&gt;")
(mkSetBinding mappings.gitStatus "&lt;cmd&gt; Telescope git_status&lt;CR&gt;")
(mkSetBinding mappings.gitStash "&lt;cmd&gt; Telescope git_stash&lt;CR&gt;")
(mkIf config.vim.lsp.enable (mkMerge [
(mkSetBinding mappings.lspDocumentSymbols "&lt;cmd&gt; Telescope lsp_document_symbols&lt;CR&gt;")
(mkSetBinding mappings.lspWorkspaceSymbols "&lt;cmd&gt; Telescope lsp_workspace_symbols&lt;CR&gt;")
(mkSetBinding mappings.lspReferences "&lt;cmd&gt; Telescope lsp_references&lt;CR&gt;")
(mkSetBinding mappings.lspImplementations "&lt;cmd&gt; Telescope lsp_implementations&lt;CR&gt;")
(mkSetBinding mappings.lspDefinitions "&lt;cmd&gt; Telescope lsp_definitions&lt;CR&gt;")
(mkSetBinding mappings.lspTypeDefinitions "&lt;cmd&gt; Telescope lsp_type_definitions&lt;CR&gt;")
(mkSetBinding mappings.diagnostics "&lt;cmd&gt; Telescope diagnostics&lt;CR&gt;")
]))
(
mkIf config.vim.treesitter.enable
(mkSetBinding mappings.treesitter "&lt;cmd&gt; Telescope treesitter&lt;CR&gt;")
)
];
# ...
};
}</pre><div class="note"><h3 class="title">Note</h3><p>If you have come across a plugin that has an API that doesn’t seem to easily allow custom keybindings,
don’t be scared to implement a draft PR. We’ll help you get it done.</p></div></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-additional-plugins"></a>8.5. Adding Plugins</h2></div></div></div><p>To add a new neovim plugin, first add the source url in the inputs section of <code class="literal">flake.nix</code></p><pre class="programlisting nix">{
inputs = {
# ...
neodev-nvim = {
url = "github:folke/neodev.nvim";
flake = false;
};
};
}</pre><p>Then add the name of the plugin into the <code class="literal">availablePlugins</code> variable in <code class="literal">lib/types/plugins.nix</code>:</p><pre class="programlisting nix"># ...
availablePlugins = [
# ...
"neodev-nvim"
];</pre><p>You can now reference this plugin using its string name:</p><pre class="programlisting nix">config.vim.startPlugins = ["neodev-nvim"];</pre></div></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="options.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"> </td><td width="20%" align="center"> </td><td width="40%" align="right" valign="top"> Appendix A. Configuration Options</td></tr></table></div></body></html>
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