b8344f9e5c
I used the existing anchors generated by Docbook, so the anchor part should be a no-op. This could be useful depending on the infrastructure we choose to use, and it is better to be explicit than rely on Docbook's id generating algorithms. I got rid of the metadata segments of the Markdown files, because they are outdated, inaccurate, and could make people less willing to change them without speaking with the author.
284 lines
9.0 KiB
Markdown
284 lines
9.0 KiB
Markdown
# Vim {#vim}
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Both Neovim and Vim can be configured to include your favorite plugins
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and additional libraries.
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Loading can be deferred; see examples.
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At the moment we support three different methods for managing plugins:
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- Vim packages (*recommend*)
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- VAM (=vim-addon-manager)
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- Pathogen
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- vim-plug
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## Custom configuration
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Adding custom .vimrc lines can be done using the following code:
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```nix
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vim_configurable.customize {
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# `name` specifies the name of the executable and package
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name = "vim-with-plugins";
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vimrcConfig.customRC = ''
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set hidden
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'';
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}
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```
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This configuration is used when Vim is invoked with the command specified as name, in this case `vim-with-plugins`.
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For Neovim the `configure` argument can be overridden to achieve the same:
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```nix
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neovim.override {
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configure = {
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customRC = ''
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# here your custom configuration goes!
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'';
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};
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}
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```
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If you want to use `neovim-qt` as a graphical editor, you can configure it by overriding Neovim in an overlay
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or passing it an overridden Neovimn:
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```nix
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neovim-qt.override {
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neovim = neovim.override {
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configure = {
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customRC = ''
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# your custom configuration
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'';
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};
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};
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}
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```
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## Managing plugins with Vim packages
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To store you plugins in Vim packages (the native Vim plugin manager, see `:help packages`) the following example can be used:
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```nix
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vim_configurable.customize {
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vimrcConfig.packages.myVimPackage = with pkgs.vimPlugins; {
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# loaded on launch
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start = [ youcompleteme fugitive ];
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# manually loadable by calling `:packadd $plugin-name`
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# however, if a Vim plugin has a dependency that is not explicitly listed in
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# opt that dependency will always be added to start to avoid confusion.
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opt = [ phpCompletion elm-vim ];
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# To automatically load a plugin when opening a filetype, add vimrc lines like:
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# autocmd FileType php :packadd phpCompletion
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};
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}
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```
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`myVimPackage` is an arbitrary name for the generated package. You can choose any name you like.
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For Neovim the syntax is:
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```nix
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neovim.override {
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configure = {
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customRC = ''
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# here your custom configuration goes!
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'';
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packages.myVimPackage = with pkgs.vimPlugins; {
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# see examples below how to use custom packages
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start = [ ];
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# If a Vim plugin has a dependency that is not explicitly listed in
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# opt that dependency will always be added to start to avoid confusion.
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opt = [ ];
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};
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};
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}
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```
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The resulting package can be added to `packageOverrides` in `~/.nixpkgs/config.nix` to make it installable:
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```nix
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{
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packageOverrides = pkgs: with pkgs; {
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myVim = vim_configurable.customize {
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# `name` specifies the name of the executable and package
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name = "vim-with-plugins";
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# add here code from the example section
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};
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myNeovim = neovim.override {
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configure = {
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# add here code from the example section
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};
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};
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};
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}
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```
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After that you can install your special grafted `myVim` or `myNeovim` packages.
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## Managing plugins with vim-plug
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To use [vim-plug](https://github.com/junegunn/vim-plug) to manage your Vim
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plugins the following example can be used:
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```nix
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vim_configurable.customize {
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vimrcConfig.packages.myVimPackage = with pkgs.vimPlugins; {
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# loaded on launch
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plug.plugins = [ youcompleteme fugitive phpCompletion elm-vim ];
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};
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}
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```
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For Neovim the syntax is:
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```nix
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neovim.override {
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configure = {
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customRC = ''
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# here your custom configuration goes!
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'';
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plug.plugins = with pkgs.vimPlugins; [
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vim-go
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];
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};
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}
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```
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## Managing plugins with VAM
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### Handling dependencies of Vim plugins
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VAM introduced .json files supporting dependencies without versioning
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assuming that "using latest version" is ok most of the time.
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### Example
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First create a vim-scripts file having one plugin name per line. Example:
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```
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"tlib"
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{'name': 'vim-addon-sql'}
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{'filetype_regex': '\%(vim)$', 'names': ['reload', 'vim-dev-plugin']}
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```
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Such vim-scripts file can be read by VAM as well like this:
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```vim
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call vam#Scripts(expand('~/.vim-scripts'), {})
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```
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Create a default.nix file:
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```nix
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{ nixpkgs ? import <nixpkgs> {}, compiler ? "ghc7102" }:
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nixpkgs.vim_configurable.customize { name = "vim"; vimrcConfig.vam.pluginDictionaries = [ "vim-addon-vim2nix" ]; }
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```
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Create a generate.vim file:
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```vim
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ActivateAddons vim-addon-vim2nix
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let vim_scripts = "vim-scripts"
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call nix#ExportPluginsForNix({
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\ 'path_to_nixpkgs': eval('{"'.substitute(substitute(substitute($NIX_PATH, ':', ',', 'g'), '=',':', 'g'), '\([:,]\)', '"\1"',"g").'"}')["nixpkgs"],
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\ 'cache_file': '/tmp/vim2nix-cache',
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\ 'try_catch': 0,
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\ 'plugin_dictionaries': ["vim-addon-manager"]+map(readfile(vim_scripts), 'eval(v:val)')
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\ })
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```
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Then run
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```bash
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nix-shell -p vimUtils.vim_with_vim2nix --command "vim -c 'source generate.vim'"
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```
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You should get a Vim buffer with the nix derivations (output1) and vam.pluginDictionaries (output2).
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You can add your Vim to your system's configuration file like this and start it by "vim-my":
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```
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my-vim =
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let plugins = let inherit (vimUtils) buildVimPluginFrom2Nix; in {
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copy paste output1 here
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}; in vim_configurable.customize {
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name = "vim-my";
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vimrcConfig.vam.knownPlugins = plugins; # optional
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vimrcConfig.vam.pluginDictionaries = [
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copy paste output2 here
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];
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# Pathogen would be
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# vimrcConfig.pathogen.knownPlugins = plugins; # plugins
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# vimrcConfig.pathogen.pluginNames = ["tlib"];
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};
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```
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Sample output1:
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```
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"reload" = buildVimPluginFrom2Nix { # created by nix#NixDerivation
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name = "reload";
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src = fetchgit {
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url = "git://github.com/xolox/vim-reload";
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rev = "0a601a668727f5b675cb1ddc19f6861f3f7ab9e1";
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sha256 = "0vb832l9yxj919f5hfg6qj6bn9ni57gnjd3bj7zpq7d4iv2s4wdh";
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};
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dependencies = ["nim-misc"];
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};
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[...]
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```
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Sample output2:
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```nix
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[
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''vim-addon-manager''
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''tlib''
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{ "name" = ''vim-addon-sql''; }
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{ "filetype_regex" = ''\%(vim)$$''; "names" = [ ''reload'' ''vim-dev-plugin'' ]; }
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]
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```
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## Adding new plugins to nixpkgs
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Nix expressions for Vim plugins are stored in [pkgs/misc/vim-plugins](/pkgs/misc/vim-plugins). For the vast majority of plugins, Nix expressions are automatically generated by running [`./update.py`](/pkgs/misc/vim-plugins/update.py). This creates a [generated.nix](/pkgs/misc/vim-plugins/generated.nix) file based on the plugins listed in [vim-plugin-names](/pkgs/misc/vim-plugins/vim-plugin-names). Plugins are listed in alphabetical order in `vim-plugin-names` using the format `[github username]/[repository]`. For example https://github.com/scrooloose/nerdtree becomes `scrooloose/nerdtree`.
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Some plugins require overrides in order to function properly. Overrides are placed in [overrides.nix](/pkgs/misc/vim-plugins/overrides.nix). Overrides are most often required when a plugin requires some dependencies, or extra steps are required during the build process. For example `deoplete-fish` requires both `deoplete-nvim` and `vim-fish`, and so the following override was added:
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```
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deoplete-fish = super.deoplete-fish.overrideAttrs(old: {
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dependencies = with super; [ deoplete-nvim vim-fish ];
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});
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```
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Sometimes plugins require an override that must be changed when the plugin is updated. This can cause issues when Vim plugins are auto-updated but the associated override isn't updated. For these plugins, the override should be written so that it specifies all information required to install the plugin, and running `./update.py` doesn't change the derivation for the plugin. Manually updating the override is required to update these types of plugins. An example of such a plugin is `LanguageClient-neovim`.
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To add a new plugin, run `./update.py --add "[owner]/[name]"`. **NOTE**: This script automatically commits to your git repository. Be sure to check out a fresh branch before running.
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Finally, there are some plugins that are also packaged in nodePackages because they have Javascript-related build steps, such as running webpack. Those plugins are not listed in `vim-plugin-names` or managed by `update.py` at all, and are included separately in `overrides.nix`. Currently, all these plugins are related to the `coc.nvim` ecosystem of Language Server Protocol integration with vim/neovim.
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## Updating plugins in nixpkgs
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Run the update script with a GitHub API token that has at least `public_repo` access. Running the script without the token is likely to result in rate-limiting (429 errors). For steps on creating an API token, please refer to [GitHub's token documentation](https://docs.github.com/en/free-pro-team@latest/github/authenticating-to-github/creating-a-personal-access-token).
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```sh
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GITHUB_API_TOKEN=my_token ./pkgs/misc/vim-plugins/update.py
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```
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Alternatively, set the number of processes to a lower count to avoid rate-limiting.
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```sh
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./pkgs/misc/vim-plugins/update.py --proc 1
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```
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## Important repositories
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- [vim-pi](https://bitbucket.org/vimcommunity/vim-pi) is a plugin repository
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from VAM plugin manager meant to be used by others as well used by
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- [vim2nix](https://github.com/MarcWeber/vim-addon-vim2nix) which generates the
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.nix code
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