treewide: begin restructuring the module tree

flake/modules/home-manager.nix

@@ -1,15 +1,19 @@
 # Home Manager module
 packages: inputs: {
-  pkgs,
   config,
+  pkgs,
   lib ? pkgs.lib,
-  self,
   ...
-}:
+}: let
-with lib; let
+  inherit (lib) maintainers;
+  inherit (lib.modules) mkIf;
+  inherit (lib.options) mkOption mkEnableOption literalExpression;
+  inherit (lib.types) attrsOf anything;
+
   cfg = config.programs.neovim-flake;
   inherit (import ../../configuration.nix inputs) neovimConfiguration;
-  set = neovimConfiguration {
+
+  builtPackage = neovimConfiguration {
     inherit pkgs;
     modules = [cfg.settings];
   };
@@ -17,10 +21,10 @@ in {
   meta.maintainers = with maintainers; [NotAShelf];
 
   options.programs.neovim-flake = {
-    enable = mkEnableOption "A NeoVim IDE with a focus on configurability and extensibility.";
+    enable = mkEnableOption "neovim-flake, the extensible neovim-wrapper";
 
     settings = mkOption {
-      type = types.attrsOf types.anything;
+      type = attrsOf anything;
       default = {};
       example = literalExpression ''
         {
@@ -44,6 +48,6 @@ in {
   };
 
   config = mkIf cfg.enable {
-    home.packages = [set.neovim];
+    home.packages = [builtPackage];
   };
 }

lib/default.nix

@@ -1,6 +1,5 @@
 {lib}: {
   types = import ./types {inherit lib;};
-
   binds = import ./binds.nix {inherit lib;};
   dag = import ./dag.nix {inherit lib;};
   languages = import ./languages.nix {inherit lib;};

modules/basic/config.nix

@@ -1,188 +0,0 @@
-{
-  lib,
-  config,
-  ...
-}: let
-  inherit (builtins) concatStringsSep;
-  inherit (lib.modules) mkIf;
-  inherit (lib.lists) optionals;
-  inherit (lib.strings) optionalString;
-  inherit (lib.nvim.dag) entryAfter;
-
-  cfg = config.vim;
-in {
-  config = {
-    vim.startPlugins = ["plenary-nvim"] ++ optionals (cfg.spellChecking.enableProgrammingWordList) ["vim-dirtytalk"];
-
-    vim.maps.normal =
-      mkIf cfg.disableArrows {
-        "<up>" = {
-          action = "<nop>";
-
-          noremap = false;
-        };
-        "<down>" = {
-          action = "<nop>";
-
-          noremap = false;
-        };
-        "<left>" = {
-          action = "<nop>";
-          noremap = false;
-        };
-        "<right>" = {
-          action = "<nop>";
-          noremap = false;
-        };
-      }
-      // mkIf cfg.mapLeaderSpace {
-        "<space>" = {
-          action = "<nop>";
-        };
-      };
-
-    vim.maps.insert = mkIf cfg.disableArrows {
-      "<up>" = {
-        action = "<nop>";
-        noremap = false;
-      };
-      "<down>" = {
-        action = "<nop>";
-        noremap = false;
-      };
-      "<left>" = {
-        action = "<nop>";
-        noremap = false;
-      };
-      "<right>" = {
-        action = "<nop>";
-        noremap = false;
-      };
-    };
-
-    vim.configRC.basic = entryAfter ["globalsScript"] ''
-      " Settings that are set for everything
-      set encoding=utf-8
-      set mouse=${cfg.mouseSupport}
-      set tabstop=${toString cfg.tabWidth}
-      set shiftwidth=${toString cfg.tabWidth}
-      set softtabstop=${toString cfg.tabWidth}
-      set expandtab
-      set cmdheight=${toString cfg.cmdHeight}
-      set updatetime=${toString cfg.updateTime}
-      set shortmess+=c
-      set tm=${toString cfg.mapTimeout}
-      set hidden
-      set cursorlineopt=${toString cfg.cursorlineOpt}
-      set scrolloff=${toString cfg.scrollOffset}
-
-      ${optionalString cfg.debugMode.enable ''
-        " Debug mode settings
-        set verbose=${toString cfg.debugMode.level}
-        set verbosefile=${cfg.debugMode.logFile}
-      ''}
-
-      ${optionalString cfg.splitBelow ''
-        set splitbelow
-      ''}
-
-      ${optionalString cfg.splitRight ''
-        set splitright
-      ''}
-
-      ${optionalString cfg.showSignColumn ''
-        set signcolumn=yes
-      ''}
-
-      ${optionalString cfg.autoIndent ''
-        set autoindent
-      ''}
-
-      ${optionalString cfg.preventJunkFiles ''
-        set noswapfile
-        set nobackup
-        set nowritebackup
-      ''}
-
-      ${optionalString (cfg.bell == "none") ''
-        set noerrorbells
-        set novisualbell
-      ''}
-
-      ${optionalString (cfg.bell == "on") ''
-        set novisualbell
-      ''}
-
-      ${optionalString (cfg.bell == "visual") ''
-        set noerrorbells
-      ''}
-
-      ${optionalString (cfg.lineNumberMode == "relative") ''
-        set relativenumber
-      ''}
-
-      ${optionalString (cfg.lineNumberMode == "number") ''
-        set number
-      ''}
-
-      ${optionalString (cfg.lineNumberMode == "relNumber") ''
-        set number relativenumber
-      ''}
-
-      ${optionalString cfg.useSystemClipboard ''
-        set clipboard+=unnamedplus
-      ''}
-
-      ${optionalString cfg.mapLeaderSpace ''
-        let mapleader=" "
-        let maplocalleader=" "
-      ''}
-
-      ${optionalString cfg.syntaxHighlighting ''
-        syntax on
-      ''}
-
-      ${optionalString (!cfg.wordWrap) ''
-        set nowrap
-      ''}
-
-      ${optionalString cfg.hideSearchHighlight ''
-        set nohlsearch
-        set incsearch
-      ''}
-
-      ${optionalString cfg.colourTerm ''
-        set termguicolors
-        set t_Co=256
-      ''}
-
-      ${optionalString (!cfg.enableEditorconfig) ''
-        let g:editorconfig = v:false
-      ''}
-
-      ${optionalString cfg.spellChecking.enable ''
-        set spell
-        set spelllang=${concatStringsSep "," cfg.spellChecking.languages}${optionalString cfg.spellChecking.enableProgrammingWordList ",programming"}
-      ''}
-
-      ${optionalString (cfg.leaderKey != null) ''
-        let mapleader = "${toString cfg.leaderKey}"
-      ''}
-
-      ${optionalString (cfg.searchCase == "ignore") ''
-        set nosmartcase
-        set ignorecase
-      ''}
-
-      ${optionalString (cfg.searchCase == "smart") ''
-        set smartcase
-        set ignorecase
-      ''}
-
-      ${optionalString (cfg.searchCase == "sensitive") ''
-        set nosmartcase
-        set noignorecase
-      ''}
-    '';
-  };
-}

modules/core/build/config.nix

@@ -0,0 +1,322 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (builtins) attrValues attrNames map mapAttrs toJSON isString concatStringsSep filter;
+  inherit (lib.options) mkOption;
+  inherit (lib.attrsets) filterAttrs getAttrs;
+  inherit (lib.strings) optionalString;
+  inherit (lib.misc) mapAttrsFlatten;
+  inherit (lib.trivial) showWarnings;
+  inherit (lib.types) bool str oneOf attrsOf nullOr attrs submodule lines;
+  inherit (lib.nvim.types) dagOf;
+  inherit (lib.nvim.dag) entryAnywhere entryAfter topoSort;
+  inherit (lib.generators) mkLuaInline;
+  inherit (lib.nvim.lua) toLuaObject;
+  inherit (lib.nvim.vim) valToVim;
+
+  cfg = config.vim;
+
+  wrapLuaConfig = luaConfig: ''
+    lua << EOF
+    ${optionalString cfg.enableLuaLoader ''
+      vim.loader.enable()
+    ''}
+    ${luaConfig}
+    EOF
+  '';
+
+  mkBool = value: description:
+    mkOption {
+      type = bool;
+      default = value;
+      inherit description;
+    };
+
+  # Most of the keybindings code is highly inspired by pta2002/nixvim. Thank you!
+  mapConfigOptions = {
+    silent =
+      mkBool false
+      "Whether this mapping should be silent. Equivalent to adding <silent> to a map.";
+
+    nowait =
+      mkBool false
+      "Whether to wait for extra input on ambiguous mappings. Equivalent to adding <nowait> to a map.";
+
+    script =
+      mkBool false
+      "Equivalent to adding <script> to a map.";
+
+    expr =
+      mkBool false
+      "Means that the action is actually an expression. Equivalent to adding <expr> to a map.";
+
+    unique =
+      mkBool false
+      "Whether to fail if the map is already defined. Equivalent to adding <unique> to a map.";
+
+    noremap =
+      mkBool true
+      "Whether to use the 'noremap' variant of the command, ignoring any custom mappings on the defined action. It is highly advised to keep this on, which is the default.";
+
+    desc = mkOption {
+      type = nullOr str;
+      default = null;
+      description = "A description of this keybind, to be shown in which-key, if you have it enabled.";
+    };
+  };
+
+  genMaps = mode: maps: let
+    /*
+    Take a user-defined action (string or attrs) and return the following attribute set:
+    {
+      action = (string) the actual action to map to this key
+      config = (attrs) the configuration options for this mapping (noremap, silent...)
+    }
+    */
+    normalizeAction = action: let
+      # Extract the values of the config options that have been explicitly set by the user
+      config =
+        filterAttrs (_: v: v != null)
+        (getAttrs (attrNames mapConfigOptions) action);
+    in {
+      config =
+        if config == {}
+        then {"__empty" = null;}
+        else config;
+      action =
+        if action.lua
+        then mkLuaInline action.action
+        else action.action;
+    };
+  in
+    attrValues (mapAttrs
+      (key: action: let
+        normalizedAction = normalizeAction action;
+      in {
+        inherit (normalizedAction) action config;
+        inherit key;
+        inherit mode;
+      })
+      maps);
+
+  mapOption = submodule {
+    options =
+      mapConfigOptions
+      // {
+        action = mkOption {
+          type = str;
+          description = "The action to execute.";
+        };
+
+        lua = mkOption {
+          type = bool;
+          description = ''
+            If true, `action` is considered to be lua code.
+            Thus, it will not be wrapped in `""`.
+          '';
+          default = false;
+        };
+      };
+  };
+
+  mapOptions = mode:
+    mkOption {
+      description = "Mappings for ${mode} mode";
+      type = attrsOf mapOption;
+      default = {};
+    };
+in {
+  options = {
+    vim = {
+      configRC = mkOption {
+        description = "vimrc contents";
+        type = oneOf [(dagOf lines) str];
+        default = {};
+      };
+
+      luaConfigRC = mkOption {
+        description = "vim lua config";
+        type = oneOf [(dagOf lines) str];
+        default = {};
+      };
+
+      builtConfigRC = mkOption {
+        internal = true;
+        type = lines;
+        description = "The built config for neovim after resolving the DAG";
+      };
+
+      globals = mkOption {
+        default = {};
+        description = "Set containing global variable values";
+        type = attrs;
+      };
+
+      maps = mkOption {
+        type = submodule {
+          options = {
+            normal = mapOptions "normal";
+            insert = mapOptions "insert";
+            select = mapOptions "select";
+            visual = mapOptions "visual and select";
+            terminal = mapOptions "terminal";
+            normalVisualOp = mapOptions "normal, visual, select and operator-pending (same as plain 'map')";
+
+            visualOnly = mapOptions "visual only";
+            operator = mapOptions "operator-pending";
+            insertCommand = mapOptions "insert and command-line";
+            lang = mapOptions "insert, command-line and lang-arg";
+            command = mapOptions "command-line";
+          };
+        };
+        default = {};
+        description = ''
+          Custom keybindings for any mode.
+
+          For plain maps (e.g. just 'map' or 'remap') use maps.normalVisualOp.
+        '';
+
+        example = ''
+          maps = {
+            normal."<leader>m" = {
+              silent = true;
+              action = "<cmd>make<CR>";
+            }; # Same as nnoremap <leader>m <silent> <cmd>make<CR>
+          };
+        '';
+      };
+
+      enableLuaLoader = lib.options.mkEnableOption ''
+        experimental Lua module loader to speed up the start up process
+      '';
+    };
+  };
+
+  config = let
+    filterNonNull = mappings: filterAttrs (_name: value: value != null) mappings;
+    globalsScript =
+      mapAttrsFlatten (name: value: "let g:${name}=${valToVim value}")
+      (filterNonNull cfg.globals);
+
+    toLuaBindings = mode: maps:
+      map (value: ''
+        vim.keymap.set(${toLuaObject mode}, ${toLuaObject value.key}, ${toLuaObject value.action}, ${toLuaObject value.config})
+      '') (genMaps mode maps);
+
+    # I'm not sure if every one of these will work.
+    allmap = toLuaBindings "" config.vim.maps.normalVisualOp;
+    nmap = toLuaBindings "n" config.vim.maps.normal;
+    vmap = toLuaBindings "v" config.vim.maps.visual;
+    xmap = toLuaBindings "x" config.vim.maps.visualOnly;
+    smap = toLuaBindings "s" config.vim.maps.select;
+    imap = toLuaBindings "i" config.vim.maps.insert;
+    cmap = toLuaBindings "c" config.vim.maps.command;
+    tmap = toLuaBindings "t" config.vim.maps.terminal;
+    lmap = toLuaBindings "l" config.vim.maps.lang;
+    omap = toLuaBindings "o" config.vim.maps.operator;
+    icmap = toLuaBindings "ic" config.vim.maps.insertCommand;
+
+    resolveDag = {
+      name,
+      dag,
+      mapResult,
+    }: let
+      # When the value is a string, default it to dag.entryAnywhere
+      finalDag = mapAttrs (_: value:
+        if isString value
+        then entryAnywhere value
+        else value)
+      dag;
+      sortedDag = topoSort finalDag;
+      result =
+        if sortedDag ? result
+        then mapResult sortedDag.result
+        else abort ("Dependency cycle in ${name}: " + toJSON sortedDag);
+    in
+      result;
+  in {
+    vim = {
+      startPlugins = map (x: x.package) (attrValues cfg.extraPlugins);
+      configRC = {
+        globalsScript = entryAnywhere (concatStringsSep "\n" globalsScript);
+
+        luaScript = let
+          mkSection = r: ''
+            -- SECTION: ${r.name}
+            ${r.data}
+          '';
+          mapResult = r: (wrapLuaConfig (concatStringsSep "\n" (map mkSection r)));
+          luaConfig = resolveDag {
+            name = "lua config script";
+            dag = cfg.luaConfigRC;
+            inherit mapResult;
+          };
+        in
+          entryAfter ["globalsScript"] luaConfig;
+
+        extraPluginConfigs = let
+          mkSection = r: ''
+            -- SECTION: ${r.name}
+            ${r.data}
+          '';
+          mapResult = r: (wrapLuaConfig (concatStringsSep "\n" (map mkSection r)));
+          extraPluginsDag = mapAttrs (_: {
+            after,
+            setup,
+            ...
+          }:
+            entryAfter after setup)
+          cfg.extraPlugins;
+          pluginConfig = resolveDag {
+            name = "extra plugins config";
+            dag = extraPluginsDag;
+            inherit mapResult;
+          };
+        in
+          entryAfter ["luaScript"] pluginConfig;
+
+        # This is probably not the right way to set the config. I'm not sure how it should look like.
+        mappings = let
+          maps = [
+            nmap
+            imap
+            vmap
+            xmap
+            smap
+            cmap
+            omap
+            tmap
+            lmap
+            icmap
+            allmap
+          ];
+          mapConfig = wrapLuaConfig (concatStringsSep "\n" (map (v: concatStringsSep "\n" v) maps));
+        in
+          entryAfter ["globalsScript"] mapConfig;
+      };
+
+      builtConfigRC = let
+        failedAssertions = map (x: x.message) (filter (x: !x.assertion) config.assertions);
+
+        baseSystemAssertWarn =
+          if failedAssertions != []
+          then throw "\nFailed assertions:\n${concatStringsSep "\n" (map (x: "- ${x}") failedAssertions)}"
+          else showWarnings config.warnings;
+
+        mkSection = r: ''
+          " SECTION: ${r.name}
+          ${r.data}
+        '';
+        mapResult = r: (concatStringsSep "\n" (map mkSection r));
+        vimConfig = resolveDag {
+          name = "vim config script";
+          dag = cfg.configRC;
+          inherit mapResult;
+        };
+      in
+        baseSystemAssertWarn vimConfig;
+    };
+  };
+}

modules/core/build/default.nix

@@ -1,6 +1,6 @@
-_: {
+{
   imports = [
     ./config.nix
-    ./module.nix
+    ./options.nix
   ];
 }

modules/core/build/options.nix

@@ -0,0 +1,87 @@
+{
+  pkgs,
+  lib,
+  ...
+}: let
+  inherit (lib.options) mkEnableOption mkOption literalExpression;
+  inherit (lib.types) path int package bool str listOf attrsOf;
+  inherit (lib.nvim.types) pluginsOpt extraPluginType;
+in {
+  options.vim = {
+    package = mkOption {
+      type = package;
+      default = pkgs.neovim-unwrapped;
+      description = ''
+        The neovim package to use.
+
+        You will need to use an unwrapped package for this option to work as intended.
+      '';
+    };
+
+    debugMode = {
+      enable = mkEnableOption "debug mode";
+      level = mkOption {
+        type = int;
+        default = 20;
+        description = "Set the debug level";
+      };
+
+      logFile = mkOption {
+        type = path;
+        default = "/tmp/nvim.log";
+        description = "Set the log file";
+      };
+    };
+
+    viAlias = mkOption {
+      description = "Enable vi alias";
+      type = bool;
+      default = true;
+    };
+
+    vimAlias = mkOption {
+      description = "Enable vim alias";
+      type = bool;
+      default = true;
+    };
+
+    startPlugins = pluginsOpt {
+      default = [];
+      description = "List of plugins to startup.";
+    };
+
+    optPlugins = pluginsOpt {
+      default = [];
+      description = "List of plugins to optionally load";
+    };
+
+    extraPlugins = mkOption {
+      type = attrsOf extraPluginType;
+      default = {};
+      description = ''
+        List of plugins and related config.
+        Note that these are setup after builtin plugins.
+      '';
+      example = literalExpression ''
+          with pkgs.vimPlugins; {
+          aerial = {
+            package = aerial-nvim;
+            setup = "require('aerial').setup {}";
+          };
+          harpoon = {
+            package = harpoon;
+            setup = "require('harpoon').setup {}";
+            after = ["aerial"];
+          };
+        }'';
+    };
+
+    luaPackages = mkOption {
+      type = listOf str;
+      default = [];
+      description = ''
+        List of lua packages to install.
+      '';
+    };
+  };
+}

modules/core/default.nix

@@ -1,394 +1,6 @@
 {
-  config,
+  imports = [
-  lib,
+    ./build
-  ...
+    ./warnings
-}: let
-  inherit (builtins) attrValues attrNames map mapAttrs toJSON isString concatStringsSep filter;
-  inherit (lib.options) mkOption literalExpression mdDoc;
-  inherit (lib.attrsets) filterAttrs getAttrs;
-  inherit (lib.strings) optionalString;
-  inherit (lib.misc) mapAttrsFlatten;
-  inherit (lib.trivial) showWarnings;
-  inherit (lib.types) bool str listOf oneOf attrsOf nullOr attrs submodule unspecified lines;
-  inherit (lib.nvim.types) dagOf pluginsOpt extraPluginType;
-  inherit (lib.nvim.dag) entryAnywhere entryAfter topoSort;
-  inherit (lib.generators) mkLuaInline;
-  inherit (lib.nvim.lua) toLuaObject;
-  inherit (lib.nvim.vim) valToVim;
-
-  cfg = config.vim;
-
-  wrapLuaConfig = luaConfig: ''
-    lua << EOF
-    ${optionalString cfg.enableLuaLoader ''
-      vim.loader.enable()
-    ''}
-    ${luaConfig}
-    EOF
-  '';
-
-  mkBool = value: description:
-    mkOption {
-      type = bool;
-      default = value;
-      inherit description;
-    };
-
-  # Most of the keybindings code is highly inspired by pta2002/nixvim. Thank you!
-  mapConfigOptions = {
-    silent =
-      mkBool false
-      "Whether this mapping should be silent. Equivalent to adding <silent> to a map.";
-
-    nowait =
-      mkBool false
-      "Whether to wait for extra input on ambiguous mappings. Equivalent to adding <nowait> to a map.";
-
-    script =
-      mkBool false
-      "Equivalent to adding <script> to a map.";
-
-    expr =
-      mkBool false
-      "Means that the action is actually an expression. Equivalent to adding <expr> to a map.";
-
-    unique =
-      mkBool false
-      "Whether to fail if the map is already defined. Equivalent to adding <unique> to a map.";
-
-    noremap =
-      mkBool true
-      "Whether to use the 'noremap' variant of the command, ignoring any custom mappings on the defined action. It is highly advised to keep this on, which is the default.";
-
-    desc = mkOption {
-      type = nullOr str;
-      default = null;
-      description = "A description of this keybind, to be shown in which-key, if you have it enabled.";
-    };
-  };
-
-  genMaps = mode: maps: let
-    /*
-    Take a user-defined action (string or attrs) and return the following attribute set:
-    {
-      action = (string) the actual action to map to this key
-      config = (attrs) the configuration options for this mapping (noremap, silent...)
-    }
-    */
-    normalizeAction = action: let
-      # Extract the values of the config options that have been explicitly set by the user
-      config =
-        filterAttrs (_: v: v != null)
-        (getAttrs (attrNames mapConfigOptions) action);
-    in {
-      config =
-        if config == {}
-        then {"__empty" = null;}
-        else config;
-      action =
-        if action.lua
-        then mkLuaInline action.action
-        else action.action;
-    };
-  in
-    attrValues (mapAttrs
-      (key: action: let
-        normalizedAction = normalizeAction action;
-      in {
-        inherit (normalizedAction) action config;
-        inherit key;
-        inherit mode;
-      })
-      maps);
-
-  mapOption = submodule {
-    options =
-      mapConfigOptions
-      // {
-        action = mkOption {
-          type = str;
-          description = "The action to execute.";
-        };
-
-        lua = mkOption {
-          type = bool;
-          description = ''
-            If true, `action` is considered to be lua code.
-            Thus, it will not be wrapped in `""`.
-          '';
-          default = false;
-        };
-      };
-  };
-
-  mapOptions = mode:
-    mkOption {
-      description = "Mappings for ${mode} mode";
-      type = attrsOf mapOption;
-      default = {};
-    };
-in {
-  options = {
-    assertions = mkOption {
-      type = listOf unspecified;
-      internal = true;
-      default = [];
-      example = literalExpression ''
-        [
-          {
-            assertion = false;
-            message = "you can't enable this for that reason";
-          }
-        ]
-      '';
-    };
-
-    warnings = mkOption {
-      internal = true;
-      default = [];
-      type = listOf str;
-      example = ["The `foo' service is deprecated and will go away soon!"];
-      description = mdDoc ''
-        This option allows modules to show warnings to users during
-        the evaluation of the system configuration.
-      '';
-    };
-
-    vim = {
-      viAlias = mkOption {
-        description = "Enable vi alias";
-        type = bool;
-        default = true;
-      };
-
-      vimAlias = mkOption {
-        description = "Enable vim alias";
-        type = bool;
-        default = true;
-      };
-
-      configRC = mkOption {
-        description = "vimrc contents";
-        type = oneOf [(dagOf lines) str];
-        default = {};
-      };
-
-      luaConfigRC = mkOption {
-        description = "vim lua config";
-        type = oneOf [(dagOf lines) str];
-        default = {};
-      };
-
-      builtConfigRC = mkOption {
-        internal = true;
-        type = lines;
-        description = "The built config for neovim after resolving the DAG";
-      };
-
-      startPlugins = pluginsOpt {
-        default = [];
-        description = "List of plugins to startup.";
-      };
-
-      optPlugins = pluginsOpt {
-        default = [];
-        description = "List of plugins to optionally load";
-      };
-
-      extraPlugins = mkOption {
-        type = attrsOf extraPluginType;
-        default = {};
-        description = ''
-          List of plugins and related config.
-          Note that these are setup after builtin plugins.
-        '';
-        example = literalExpression ''
-            with pkgs.vimPlugins; {
-            aerial = {
-              package = aerial-nvim;
-              setup = "require('aerial').setup {}";
-            };
-            harpoon = {
-              package = harpoon;
-              setup = "require('harpoon').setup {}";
-              after = ["aerial"];
-            };
-          }'';
-      };
-
-      luaPackages = mkOption {
-        type = listOf str;
-        default = [];
-        description = ''
-          List of lua packages to install.
-        '';
-      };
-
-      globals = mkOption {
-        default = {};
-        description = "Set containing global variable values";
-        type = attrs;
-      };
-
-      maps = mkOption {
-        type = submodule {
-          options = {
-            normal = mapOptions "normal";
-            insert = mapOptions "insert";
-            select = mapOptions "select";
-            visual = mapOptions "visual and select";
-            terminal = mapOptions "terminal";
-            normalVisualOp = mapOptions "normal, visual, select and operator-pending (same as plain 'map')";
-
-            visualOnly = mapOptions "visual only";
-            operator = mapOptions "operator-pending";
-            insertCommand = mapOptions "insert and command-line";
-            lang = mapOptions "insert, command-line and lang-arg";
-            command = mapOptions "command-line";
-          };
-        };
-        default = {};
-        description = ''
-          Custom keybindings for any mode.
-
-          For plain maps (e.g. just 'map' or 'remap') use maps.normalVisualOp.
-        '';
-
-        example = ''
-          maps = {
-            normal."<leader>m" = {
-              silent = true;
-              action = "<cmd>make<CR>";
-            }; # Same as nnoremap <leader>m <silent> <cmd>make<CR>
-          };
-        '';
-      };
-    };
-  };
-
-  config = let
-    filterNonNull = mappings: filterAttrs (_name: value: value != null) mappings;
-    globalsScript =
-      mapAttrsFlatten (name: value: "let g:${name}=${valToVim value}")
-      (filterNonNull cfg.globals);
-
-    toLuaBindings = mode: maps:
-      map (value: ''
-        vim.keymap.set(${toLuaObject mode}, ${toLuaObject value.key}, ${toLuaObject value.action}, ${toLuaObject value.config})
-      '') (genMaps mode maps);
-
-    # I'm not sure if every one of these will work.
-    allmap = toLuaBindings "" config.vim.maps.normalVisualOp;
-    nmap = toLuaBindings "n" config.vim.maps.normal;
-    vmap = toLuaBindings "v" config.vim.maps.visual;
-    xmap = toLuaBindings "x" config.vim.maps.visualOnly;
-    smap = toLuaBindings "s" config.vim.maps.select;
-    imap = toLuaBindings "i" config.vim.maps.insert;
-    cmap = toLuaBindings "c" config.vim.maps.command;
-    tmap = toLuaBindings "t" config.vim.maps.terminal;
-    lmap = toLuaBindings "l" config.vim.maps.lang;
-    omap = toLuaBindings "o" config.vim.maps.operator;
-    icmap = toLuaBindings "ic" config.vim.maps.insertCommand;
-
-    resolveDag = {
-      name,
-      dag,
-      mapResult,
-    }: let
-      # When the value is a string, default it to dag.entryAnywhere
-      finalDag = mapAttrs (_: value:
-        if isString value
-        then entryAnywhere value
-        else value)
-      dag;
-      sortedDag = topoSort finalDag;
-      result =
-        if sortedDag ? result
-        then mapResult sortedDag.result
-        else abort ("Dependency cycle in ${name}: " + toJSON sortedDag);
-    in
-      result;
-  in {
-    vim = {
-      startPlugins = map (x: x.package) (attrValues cfg.extraPlugins);
-      configRC = {
-        globalsScript = entryAnywhere (concatStringsSep "\n" globalsScript);
-
-        luaScript = let
-          mkSection = r: ''
-            -- SECTION: ${r.name}
-            ${r.data}
-          '';
-          mapResult = r: (wrapLuaConfig (concatStringsSep "\n" (map mkSection r)));
-          luaConfig = resolveDag {
-            name = "lua config script";
-            dag = cfg.luaConfigRC;
-            inherit mapResult;
-          };
-        in
-          entryAfter ["globalsScript"] luaConfig;
-
-        extraPluginConfigs = let
-          mkSection = r: ''
-            -- SECTION: ${r.name}
-            ${r.data}
-          '';
-          mapResult = r: (wrapLuaConfig (concatStringsSep "\n" (map mkSection r)));
-          extraPluginsDag = mapAttrs (_: {
-            after,
-            setup,
-            ...
-          }:
-            entryAfter after setup)
-          cfg.extraPlugins;
-          pluginConfig = resolveDag {
-            name = "extra plugins config";
-            dag = extraPluginsDag;
-            inherit mapResult;
-          };
-        in
-          entryAfter ["luaScript"] pluginConfig;
-
-        # This is probably not the right way to set the config. I'm not sure how it should look like.
-        mappings = let
-          maps = [
-            nmap
-            imap
-            vmap
-            xmap
-            smap
-            cmap
-            omap
-            tmap
-            lmap
-            icmap
-            allmap
   ];
-          mapConfig = wrapLuaConfig (concatStringsSep "\n" (map (v: concatStringsSep "\n" v) maps));
-        in
-          entryAfter ["globalsScript"] mapConfig;
-      };
-
-      builtConfigRC = let
-        failedAssertions = map (x: x.message) (filter (x: !x.assertion) config.assertions);
-
-        baseSystemAssertWarn =
-          if failedAssertions != []
-          then throw "\nFailed assertions:\n${concatStringsSep "\n" (map (x: "- ${x}") failedAssertions)}"
-          else showWarnings config.warnings;
-
-        mkSection = r: ''
-          " SECTION: ${r.name}
-          ${r.data}
-        '';
-        mapResult = r: (concatStringsSep "\n" (map mkSection r));
-        vimConfig = resolveDag {
-          name = "vim config script";
-          dag = cfg.configRC;
-          inherit mapResult;
-        };
-      in
-        baseSystemAssertWarn vimConfig;
-    };
-  };
 }

modules/core/warnings/default.nix

@@ -0,0 +1,31 @@
+{lib, ...}: let
+  inherit (lib.options) mkOption literalExpression;
+  inherit (lib.types) listOf str unspecified;
+in {
+  options = {
+    assertions = mkOption {
+      type = listOf unspecified;
+      internal = true;
+      default = [];
+      example = literalExpression ''
+        [
+          {
+            assertion = false;
+            message = "you can't enable this for that reason";
+          }
+        ]
+      '';
+    };
+
+    warnings = mkOption {
+      internal = true;
+      default = [];
+      type = listOf str;
+      example = ["The `foo' service is deprecated and will go away soon!"];
+      description = ''
+        This option allows modules to show warnings to users during
+        the evaluation of the system configuration.
+      '';
+    };
+  };
+}

modules/modules.nix

@@ -3,46 +3,59 @@
   lib,
   check ? true,
 }: let
-  modules = [
+  inherit (lib.modules) mkDefault;
-    ./completion
+  inherit (lib.lists) concatLists;
-    ./theme
+
-    ./core
+  core = map (p: ./core + "/${p}") [
-    ./basic
+    "build"
-    ./statusline
+    "warnings"
-    ./tabline
-    ./filetree
-    ./visuals
-    ./lsp
-    ./treesitter
-    ./autopairs
-    ./snippets
-    ./git
-    ./minimap
-    ./dashboard
-    ./utility
-    ./rich-presence
-    ./notes
-    ./terminal
-    ./ui
-    ./assistant
-    ./session
-    ./comments
-    ./projects
-    ./languages
-    ./debugger
   ];
 
+  neovim = map (p: ./neovim + "/${p}") [
+    "basic"
+    "mappings"
+  ];
+
+  plugins = map (p: ./plugins + "/${p}") [
+    "assistant"
+    "autopairs"
+    "comments"
+    "completion"
+    "dashboard"
+    "debugger"
+    "filetree"
+    "git"
+    "languages"
+    "lsp"
+    "minimap"
+    "notes"
+    "projects"
+    "rich-presence"
+    "session"
+    "snippets"
+    "statusline"
+    "tabline"
+    "terminal"
+    "theme"
+    "treesitter"
+    "ui"
+    "utility"
+    "visuals"
+  ];
+
+  allModules = concatLists [core neovim plugins];
+
   pkgsModule = {config, ...}: {
     config = {
       _module = {
         inherit check;
         args = {
-          baseModules = modules;
+          baseModules = allModules;
-          pkgsPath = lib.mkDefault pkgs.path;
+          pkgsPath = mkDefault pkgs.path;
-          pkgs = lib.mkDefault pkgs;
+          pkgs = mkDefault pkgs;
         };
       };
     };
   };
 in
-  modules ++ [pkgsModule]
+  allModules ++ [pkgsModule]

modules/neovim/basic/configrc.nix

@@ -1,54 +1,22 @@
 {
-  pkgs,
+  config,
   lib,
   ...
 }: let
-  inherit (lib.options) mkEnableOption mkOption;
+  inherit (lib.options) mkOption;
-  inherit (lib.types) package path str bool int listOf enum nullOr;
+  inherit (lib.strings) optionalString;
+  inherit (lib.types) enum bool str int nullOr;
+  inherit (lib.nvim.dag) entryAfter;
+
+  cfg = config.vim;
 in {
   options.vim = {
-    package = mkOption {
-      type = package;
-      default = pkgs.neovim-unwrapped;
-      description = ''
-        The neovim package to use. You will need to use an unwrapped package for this option to work as intended.
-      '';
-    };
-
-    debugMode = {
-      enable = mkEnableOption "debug mode";
-      level = mkOption {
-        type = int;
-        default = 20;
-        description = "Set the debug level";
-      };
-
-      logFile = mkOption {
-        type = path;
-        default = "/tmp/nvim.log";
-        description = "Set the log file";
-      };
-    };
-
-    enableLuaLoader = mkEnableOption "experimental Lua module loader to speed up the start up process";
-
     leaderKey = mkOption {
       type = nullOr str;
       default = null;
       description = "The leader key to be used internally";
     };
 
-    spellChecking = {
-      enable = mkEnableOption "neovim's built-in spellchecking";
-      enableProgrammingWordList = mkEnableOption "vim-dirtytalk, a wordlist for programmers, that includes programming words";
-      languages = mkOption {
-        type = listOf str;
-        description = "The languages to be used for spellchecking";
-        default = ["en"];
-        example = ["en" "de"];
-      };
-    };
-
     colourTerm = mkOption {
       type = bool;
       default = true;
@@ -115,15 +83,20 @@ in {
       type = enum ["relative" "number" "relNumber" "none"];
       default = "relNumber";
       description = ''
-        How line numbers are displayed. Available options are
+        How line numbers are displayed.
-        none, relative, number, relNumber
+
+        Available options are:
+        * none
+        * relative
+        * number
+        * relNumber
       '';
     };
 
     preventJunkFiles = mkOption {
       type = bool;
       default = false;
-      description = "Prevent swapfile, backupfile from being created";
+      description = "Prevent swapfile and backupfile from being created";
     };
 
     tabWidth = mkOption {
@@ -197,4 +170,124 @@ in {
       description = "Set the case sensitivity of search";
     };
   };
+
+  config.vim.configRC.basic = entryAfter ["globalsScript"] ''
+    " Settings that are set for everything
+    set encoding=utf-8
+    set mouse=${cfg.mouseSupport}
+    set tabstop=${toString cfg.tabWidth}
+    set shiftwidth=${toString cfg.tabWidth}
+    set softtabstop=${toString cfg.tabWidth}
+    set expandtab
+    set cmdheight=${toString cfg.cmdHeight}
+    set updatetime=${toString cfg.updateTime}
+    set shortmess+=c
+    set tm=${toString cfg.mapTimeout}
+    set hidden
+    set cursorlineopt=${toString cfg.cursorlineOpt}
+    set scrolloff=${toString cfg.scrollOffset}
+
+    ${optionalString cfg.debugMode.enable ''
+      " Debug mode settings
+      set verbose=${toString cfg.debugMode.level}
+      set verbosefile=${cfg.debugMode.logFile}
+    ''}
+
+    ${optionalString cfg.splitBelow ''
+      set splitbelow
+    ''}
+
+    ${optionalString cfg.splitRight ''
+      set splitright
+    ''}
+
+    ${optionalString cfg.showSignColumn ''
+      set signcolumn=yes
+    ''}
+
+    ${optionalString cfg.autoIndent ''
+      set autoindent
+    ''}
+
+    ${optionalString cfg.preventJunkFiles ''
+      set noswapfile
+      set nobackup
+      set nowritebackup
+    ''}
+
+    ${optionalString (cfg.bell == "none") ''
+      set noerrorbells
+      set novisualbell
+    ''}
+
+    ${optionalString (cfg.bell == "on") ''
+      set novisualbell
+    ''}
+
+    ${optionalString (cfg.bell == "visual") ''
+      set noerrorbells
+    ''}
+
+    ${optionalString (cfg.lineNumberMode == "relative") ''
+      set relativenumber
+    ''}
+
+    ${optionalString (cfg.lineNumberMode == "number") ''
+      set number
+    ''}
+
+    ${optionalString (cfg.lineNumberMode == "relNumber") ''
+      set number relativenumber
+    ''}
+
+    ${optionalString cfg.useSystemClipboard ''
+      set clipboard+=unnamedplus
+    ''}
+
+    ${optionalString cfg.mapLeaderSpace ''
+      let mapleader=" "
+      let maplocalleader=" "
+    ''}
+
+    ${optionalString cfg.syntaxHighlighting ''
+      syntax on
+    ''}
+
+    ${optionalString (!cfg.wordWrap) ''
+      set nowrap
+    ''}
+
+    ${optionalString cfg.hideSearchHighlight ''
+      set nohlsearch
+      set incsearch
+    ''}
+
+    ${optionalString cfg.colourTerm ''
+      set termguicolors
+      set t_Co=256
+    ''}
+
+    ${optionalString (!cfg.enableEditorconfig) ''
+      let g:editorconfig = v:false
+    ''}
+
+    ${optionalString (cfg.leaderKey != null) ''
+      let mapleader = "${toString cfg.leaderKey}"
+    ''}
+
+    ${optionalString (cfg.searchCase == "ignore") ''
+      set nosmartcase
+      set ignorecase
+    ''}
+
+    ${optionalString (cfg.searchCase == "smart") ''
+      set smartcase
+      set ignorecase
+    ''}
+
+    ${optionalString (cfg.searchCase == "sensitive") ''
+      set nosmartcase
+      set noignorecase
+    ''}
+  '';
 }

modules/neovim/basic/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./configrc.nix
+    ./spellcheck.nix
+  ];
+}

modules/neovim/basic/spellcheck.nix

@@ -0,0 +1,38 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib.modules) mkIf;
+  inherit (lib.options) mkEnableOption literalExpression mkOption;
+  inherit (lib.strings) concatStringsSep optionalString;
+  inherit (lib.lists) optionals;
+  inherit (lib.types) listOf str;
+  inherit (lib.nvim.dag) entryAfter;
+
+  cfg = config.vim.spellChecking;
+  languages = cfg.languages ++ optionals cfg.enableProgrammingWordList ["programming"];
+in {
+  options.vim.spellChecking = {
+    enable = mkEnableOption "neovim's built-in spellchecking";
+    enableProgrammingWordList = mkEnableOption "vim-dirtytalk, a wordlist for programmers, that includes programming words";
+    languages = mkOption {
+      type = listOf str;
+      default = ["en"];
+      example = literalExpression ["en" "de"];
+      description = "The languages to be used for spellchecking";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    vim = {
+      startPlugins = optionals cfg.spellChecking.enableProgrammingWordList ["vim-dirtytalk"];
+      configRC.spellchecking = entryAfter ["basic"] ''
+        ${optionalString cfg.enable ''
+          set spell
+          set spelllang=${concatStringsSep "," languages}
+        ''}
+      '';
+    };
+  };
+}

modules/neovim/config.nix

@@ -0,0 +1,5 @@
+{
+  config = {
+    vim.startPlugins = ["plenary-nvim"];
+  };
+}

modules/neovim/default.nix

@@ -0,0 +1,8 @@
+{
+  imports = [
+    ./basic
+    ./mappings
+
+    ./config.nix
+  ];
+}

modules/neovim/mappings/default.nix

@@ -0,0 +1,55 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib.modules) mkIf;
+
+  cfg = config.vim;
+in {
+  vim.maps.normal =
+    mkIf cfg.disableArrows {
+      "<up>" = {
+        action = "<nop>";
+
+        noremap = false;
+      };
+      "<down>" = {
+        action = "<nop>";
+
+        noremap = false;
+      };
+      "<left>" = {
+        action = "<nop>";
+        noremap = false;
+      };
+      "<right>" = {
+        action = "<nop>";
+        noremap = false;
+      };
+    }
+    // mkIf cfg.mapLeaderSpace {
+      "<space>" = {
+        action = "<nop>";
+      };
+    };
+
+  vim.maps.insert = mkIf cfg.disableArrows {
+    "<up>" = {
+      action = "<nop>";
+      noremap = false;
+    };
+    "<down>" = {
+      action = "<nop>";
+      noremap = false;
+    };
+    "<left>" = {
+      action = "<nop>";
+      noremap = false;
+    };
+    "<right>" = {
+      action = "<nop>";
+      noremap = false;
+    };
+  };
+}