484 lines
16 KiB
Nix
484 lines
16 KiB
Nix
{stdenv, vim, vimPlugins, vim_configurable, buildEnv, writeText, writeScriptBin
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, nix-prefetch-hg, nix-prefetch-git }:
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/*
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USAGE EXAMPLE
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=============
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Install Vim like this eg using nixos option environment.systemPackages which will provide
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vim-with-plugins in PATH:
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vim_configurable.customize {
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name = "vim-with-plugins";
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# add custom .vimrc lines like this:
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vimrcConfig.customRC = ''
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set hidden
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'';
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# store your plugins in Vim packages
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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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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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# plugins can also be managed by VAM
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vimrcConfig.vam.knownPlugins = pkgs.vimPlugins; # optional
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vimrcConfig.vam.pluginDictionaries = [
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# load always
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{ name = "youcompleteme"; }
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{ names = ["youcompleteme" "foo"]; }
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# only load when opening a .php file
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{ name = "phpCompletion"; ft_regex = "^php\$"; }
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{ name = "phpCompletion"; filename_regex = "^.php\$"; }
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# provide plugin which can be loaded manually:
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{ name = "phpCompletion"; tag = "lazy"; }
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# full documentation at github.com/MarcWeber/vim-addon-manager
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];
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# there is a pathogen implementation as well, but its startup is slower and [VAM] has more feature
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# vimrcConfig.pathogen.knownPlugins = vimPlugins; # optional
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# vimrcConfig.pathogen.pluginNames = ["vim-addon-nix"];
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};
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WHAT IS A VIM PLUGIN?
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=====================
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Typical plugin files:
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plugin/P1.vim
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autoload/P1.vim
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ftplugin/xyz.vim
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doc/plugin-documentation.txt (traditional documentation)
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README(.md) (nowadays thanks to github)
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Vim offers the :h rtp setting which works for most plugins. Thus adding
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this to your .vimrc should make most plugins work:
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set rtp+=~/.nix-profile/share/vim-plugins/youcompleteme
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" or for p in ["youcompleteme"] | exec 'set rtp+=~/.nix-profile/share/vim-plugins/'.p | endfor
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which is what the [VAM]/pathogen solutions above basically do.
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Learn about about plugin Vim plugin mm managers at
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http://vim-wiki.mawercer.de/wiki/topic/vim%20plugin%20managment.html.
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The documentation can be accessed by Vim's :help command if it was tagged.
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See vimHelpTags sample code below.
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CONTRIBUTING AND CUSTOMIZING
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============================
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The example file pkgs/misc/vim-plugins/default.nix provides both:
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* manually mantained plugins
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* plugins created by VAM's nix#ExportPluginsForNix implementation
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I highly recommend to lookup vim plugin attribute names at the [vim-pi] project
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which is a database containing all plugins from
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vim.org and quite a lot of found at github and similar sources. vim-pi's documented purpose
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is to associate vim.org script ids to human readable names so that dependencies
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can be describe easily.
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How to find a name?
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* http://vam.mawercer.de/ or VAM's
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* grep vim-pi
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* use VAM's completion or :AddonsInfo command
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It might happen than a plugin is not known by vim-pi yet. We encourage you to
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contribute to vim-pi so that plugins can be updated automatically.
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CREATING DERVITATIONS AUTOMATICALLY BY PLUGIN NAME
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==================================================
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Most convenient is to use a ~/.vim-scripts file putting a plugin name into each line
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as documented by [VAM]'s README.md
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It is the same format you pass to vimrcConfig.vam.pluginDictionaries from the
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usage example above.
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Then create a temp vim file and insert:
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let opts = {}
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let opts.path_to_nixpkgs = '/etc/nixos/nixpkgs'
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let opts.cache_file = '/tmp/export-vim-plugin-for-nix-cache-file'
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let opts.plugin_dictionaries = map(readfile("vim-plugins"), 'eval(v:val)')
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" add more files
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" let opts.plugin_dictionaries += map(.. other file )
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call nix#ExportPluginsForNix(opts)
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Then ":source %" it.
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nix#ExportPluginsForNix is provided by ./vim2nix
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A buffer will open containing the plugin derivation lines as well list
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fitting the vimrcConfig.vam.pluginDictionaries option.
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Thus the most simple usage would be:
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vim_with_plugins =
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let vim = vim_configurable;
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inherit (vimUtil.override {inherit vim}) rtpPath addRtp buildVimPlugin vimHelpTags;
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vimPlugins = [
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# the derivation list from the buffer created by nix#ExportPluginsForNix
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# don't set which will default to pkgs.vimPlugins
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];
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in vim.customize {
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name = "vim-with-plugins";
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vimrcConfig.customRC = '' .. '';
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vimrcConfig.vam.knownPlugins = vimPlugins;
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vimrcConfig.vam.pluginDictionaries = [
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# the plugin list form ~/.vim-scripts turned into nix format added to
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# the buffer created by the nix#ExportPluginsForNix
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];
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}
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vim_with_plugins can be installed like any other application within Nix.
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[VAM] https://github.com/MarcWeber/vim-addon-manager
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[vim-pi] https://bitbucket.org/vimcommunity/vim-pi
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*/
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let
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inherit (stdenv) lib;
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toNames = x:
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if builtins.isString x then [x]
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else (lib.optional (x ? name) x.name)
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++ (x.names or []);
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findDependenciesRecursively = {knownPlugins, names}:
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let depsOf = name: (builtins.getAttr name knownPlugins).dependencies or [];
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recurseNames = path: names: lib.concatMap (name: recurse ([name]++path)) names;
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recurse = path:
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let name = builtins.head path;
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in if builtins.elem name (builtins.tail path)
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then throw "recursive vim dependencies"
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else [name] ++ recurseNames path (depsOf name);
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in lib.uniqList { inputList = recurseNames [] names; };
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vimrcFile = {
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packages ? null,
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vam ? null,
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pathogen ? null,
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plug ? null,
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customRC ? ""
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}:
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let
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/* pathogen mostly can set &rtp at startup time. Its used very commonly.
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*/
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pathogenImpl = lib.optionalString (pathogen != null)
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(let
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knownPlugins = pathogen.knownPlugins or vimPlugins;
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plugins = map (name: knownPlugins.${name}) (findDependenciesRecursively { inherit knownPlugins; names = pathogen.pluginNames; });
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pluginsEnv = buildEnv {
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name = "pathogen-plugin-env";
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paths = map (x: "${x}/${vimPlugins.rtpPath}") plugins;
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};
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in
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''
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let &rtp.=(empty(&rtp)?"":',')."${vimPlugins.pathogen.rtp}"
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execute pathogen#infect('${pluginsEnv}/{}')
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'');
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/* vim-plug is an extremely popular vim plugin manager.
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*/
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plugImpl = lib.optionalString (plug != null)
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''
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source ${vimPlugins.vim-plug.rtp}/plug.vim
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call plug#begin('/dev/null')
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'' + (lib.concatMapStringsSep "\n" (pkg: "Plug '${pkg.rtp}'") plug.plugins) + ''
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call plug#end()
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'';
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/*
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vim-addon-manager = VAM
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* maps names to plugin location
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* manipulates &rtp at startup time
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or when Vim has been running for a while
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* can activate plugins laziy (eg when loading a specific filetype)
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* knows about vim plugin dependencies (addon-info.json files)
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* still is minimalistic (only loads one file), the "check out" code it also
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has only gets loaded when a plugin is requested which is not found on disk
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yet
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*/
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vamImpl = lib.optionalString (vam != null)
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(let
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knownPlugins = vam.knownPlugins or vimPlugins;
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names = findDependenciesRecursively { inherit knownPlugins; names = lib.concatMap toNames vam.pluginDictionaries; };
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# Vim almost reads JSON, so eventually JSON support should be added to Nix
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# TODO: proper quoting
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toNix = x:
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if (builtins.isString x) then "'${x}'"
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else if builtins.isAttrs x && builtins ? out then toNix "${x}" # a derivation
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else if builtins.isAttrs x then "{${lib.concatStringsSep ", " (lib.mapAttrsToList (n: v: "${toNix n}: ${toNix v}") x)}}"
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else if builtins.isList x then "[${lib.concatMapStringsSep ", " toNix x}]"
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else throw "turning ${lib.generators.toPretty {} x} into a VimL thing not implemented yet";
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in assert builtins.hasAttr "vim-addon-manager" knownPlugins;
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''
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let g:nix_plugin_locations = {}
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${lib.concatMapStrings (name: ''
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let g:nix_plugin_locations['${name}'] = "${knownPlugins.${name}.rtp}"
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'') names}
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let g:nix_plugin_locations['vim-addon-manager'] = "${knownPlugins."vim-addon-manager".rtp}"
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let g:vim_addon_manager = {}
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if exists('g:nix_plugin_locations')
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" nix managed config
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" override default function making VAM aware of plugin locations:
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fun! NixPluginLocation(name)
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let path = get(g:nix_plugin_locations, a:name, "")
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return path == "" ? vam#DefaultPluginDirFromName(a:name) : path
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endfun
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let g:vim_addon_manager.plugin_dir_by_name = 'NixPluginLocation'
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" tell Vim about VAM:
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let &rtp.=(empty(&rtp)?"":','). g:nix_plugin_locations['vim-addon-manager']
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else
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" standalone config
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let &rtp.=(empty(&rtp)?"":',').c.plugin_root_dir.'/vim-addon-manager'
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if !isdirectory(c.plugin_root_dir.'/vim-addon-manager/autoload')
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" checkout VAM
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execute '!git clone --depth=1 https://github.com/MarcWeber/vim-addon-manager '
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\ shellescape(c.plugin_root_dir.'/vim-addon-manager', 1)
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endif
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endif
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" tell vam about which plugins to load when:
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let l = []
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${lib.concatMapStrings (p: "call add(l, ${toNix p})\n") vam.pluginDictionaries}
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call vam#Scripts(l, {})
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'');
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nativeImpl = lib.optionalString (packages != null)
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(let
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link = (packageName: dir: pluginPath: "ln -sf ${pluginPath}/share/vim-plugins/* $out/pack/${packageName}/${dir}");
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packageLinks = (packageName: {start ? [], opt ? []}:
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["mkdir -p $out/pack/${packageName}/start"]
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++ (builtins.map (link packageName "start") start)
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++ ["mkdir -p $out/pack/${packageName}/opt"]
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++ (builtins.map (link packageName "opt") opt)
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);
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packDir = (packages:
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stdenv.mkDerivation rec {
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name = "vim-pack-dir";
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src = ./.;
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installPhase = lib.concatStringsSep
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"\n"
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(lib.flatten (lib.mapAttrsToList packageLinks packages));
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preferLocalBuild = true;
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}
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);
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in
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''
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set packpath-=~/.vim/after
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set packpath+=${packDir packages}
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set packpath+=~/.vim/after
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'');
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# somebody else could provide these implementations
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vundleImpl = "";
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neobundleImpl = "";
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in writeText "vimrc" ''
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" minimal setup, generated by NIX
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set nocompatible
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${vamImpl}
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${pathogenImpl}
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${plugImpl}
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${vundleImpl}
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${neobundleImpl}
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${nativeImpl}
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filetype indent plugin on | syn on
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${customRC}
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'';
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in
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rec {
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inherit vimrcFile;
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# shell script with custom name passing [-u vimrc] [-U gvimrc] to vim
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vimWithRC = {vimExecutable, name ? null, vimrcFile ? null, gvimrcFile ? null}:
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let rcOption = o: file: stdenv.lib.optionalString (file != null) "-${o} ${file}";
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in writeScriptBin (if name == null then "vim" else name) ''
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#!/bin/sh
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exec ${vimExecutable} ${rcOption "u" vimrcFile} ${rcOption "U" gvimrcFile} "$@"
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'';
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# add a customize option to a vim derivation
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makeCustomizable = vim: vim // {
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customize = { name, vimrcConfig }: vimWithRC {
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vimExecutable = "${vim}/bin/vim";
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inherit name;
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vimrcFile = vimrcFile vimrcConfig;
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};
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override = f: makeCustomizable (vim.override f);
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overrideAttrs = f: makeCustomizable (vim.overrideAttrs f);
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};
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pluginnames2Nix = {name, namefiles} : vim_configurable.customize {
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inherit name;
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vimrcConfig.vam.knownPlugins = vimPlugins;
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vimrcConfig.vam.pluginDictionaries = ["vim2nix"];
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vimrcConfig.customRC = ''
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" Yes - this is impure and will create the cache file and checkout vim-pi
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" into ~/.vim/vim-addons
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let g:vim_addon_manager.plugin_root_dir = "/tmp/vim2nix-".$USER
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if !isdirectory(g:vim_addon_manager.plugin_root_dir)
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call mkdir(g:vim_addon_manager.plugin_root_dir)
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else
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echom repeat("=", 80)
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echom "WARNING: reusing cache directory :".g:vim_addon_manager.plugin_root_dir
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echom repeat("=", 80)
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endif
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let opts = {}
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let opts.nix_prefetch_git = "${nix-prefetch-git}/bin/nix-prefetch-git"
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let opts.nix_prefetch_hg = "${nix-prefetch-hg}/bin/nix-prefetch-hg"
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let opts.cache_file = g:vim_addon_manager.plugin_root_dir.'/cache'
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let opts.plugin_dictionaries = []
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${lib.concatMapStrings (file: "let opts.plugin_dictionaries += map(readfile(\"${file}\"), 'eval(v:val)')\n") namefiles }
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" uncomment for debugging failures
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" let opts.try_catch = 0
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" add more files
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" let opts.plugin_dictionaries += map(.. other file )
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call nix#ExportPluginsForNix(opts)
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'';
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};
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rtpPath = "share/vim-plugins";
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vimHelpTags = ''
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vimHelpTags(){
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if [ -d "$1/doc" ]; then
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${vim}/bin/vim -N -u NONE -i NONE -n -E -s -c "helptags $1/doc" +quit! || echo "docs to build failed"
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fi
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}
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'';
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addRtp = path: attrs: derivation:
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derivation // { rtp = "${derivation}/${path}"; } // {
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overrideAttrs = f: buildVimPlugin (attrs // f attrs);
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};
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buildVimPlugin = a@{
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name,
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namePrefix ? "vimplugin-",
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src,
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unpackPhase ? "",
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configurePhase ? "",
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buildPhase ? "",
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preInstall ? "",
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postInstall ? "",
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path ? (builtins.parseDrvName name).name,
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addonInfo ? null,
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...
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}:
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addRtp "${rtpPath}/${path}" a (stdenv.mkDerivation (a // {
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name = namePrefix + name;
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inherit unpackPhase configurePhase buildPhase addonInfo preInstall postInstall;
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installPhase = ''
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runHook preInstall
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target=$out/${rtpPath}/${path}
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mkdir -p $out/${rtpPath}
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cp -r . $target
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${vimHelpTags}
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vimHelpTags $target
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if [ -n "$addonInfo" ]; then
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echo "$addonInfo" > $target/addon-info.json
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fi
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runHook postInstall
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'';
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}));
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vim_with_vim2nix = vim_configurable.customize { name = "vim"; vimrcConfig.vam.pluginDictionaries = [ "vim-addon-vim2nix" ]; };
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buildVimPluginFrom2Nix = a: buildVimPlugin ({
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buildPhase = ":";
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configurePhase =":";
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} // a);
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requiredPlugins = {
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packages ? {},
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givenKnownPlugins ? null,
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vam ? null,
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pathogen ? null,
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plug ? null, ...
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}:
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let
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# This is probably overcomplicated, but I don't understand this well enough to know what's necessary.
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knownPlugins = if givenKnownPlugins != null then givenKnownPlugins else
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if vam != null && vam ? knownPlugins then vam.knownPlugins else
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if pathogen != null && pathogen ? knownPlugins then pathogen.knownPlugins else
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vimPlugins;
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pathogenNames = map (name: knownPlugins.${name}) (findDependenciesRecursively { inherit knownPlugins; names = pathogen.pluginNames; });
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vamNames = findDependenciesRecursively { inherit knownPlugins; names = lib.concatMap toNames vam.pluginDictionaries; };
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names = (lib.optionals (pathogen != null) pathogenNames) ++
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(lib.optionals (vam != null) vamNames);
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nonNativePlugins = map (name: knownPlugins.${name}) names ++ (lib.optionals (plug != null) plug.plugins);
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nativePluginsConfigs = lib.attrsets.attrValues packages;
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nativePlugins = lib.concatMap ({start?[], opt?[]}: start++opt) nativePluginsConfigs;
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in
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nativePlugins ++ nonNativePlugins;
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# test cases:
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test_vim_with_vim_nix_using_vam = vim_configurable.customize {
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name = "vim-with-vim-addon-nix-using-vam";
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vimrcConfig.vam.pluginDictionaries = [{name = "vim-nix"; }];
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};
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test_vim_with_vim_nix_using_pathogen = vim_configurable.customize {
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name = "vim-with-vim-addon-nix-using-pathogen";
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vimrcConfig.pathogen.pluginNames = [ "vim-nix" ];
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};
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test_vim_with_vim_nix_using_plug = vim_configurable.customize {
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name = "vim-with-vim-addon-nix-using-plug";
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vimrcConfig.plug.plugins = with vimPlugins; [ vim-nix ];
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};
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test_vim_with_vim_nix = vim_configurable.customize {
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name = "vim-with-vim-addon-nix";
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vimrcConfig.packages.myVimPackage.start = with vimPlugins; [ vim-nix ];
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};
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}
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