From bfbc3ad24f9fd799ee7146cca356f7c283b753b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Moritz=20B=C3=B6hme?= <mail@moritzboeh.me>
Date: Sun, 17 Sep 2023 09:35:10 +0200
Subject: [PATCH] feat(nvim): add NixLazy.nvim

---
 flake.nix                                    |   2 +
 modules/programs/nvim/default.nix            | 248 +------------------
 modules/programs/nvim/plugins/coding.nix     |   4 +-
 modules/programs/nvim/plugins/treesitter.nix |   2 +-
 modules/programs/nvim/plugins/ui.nix         |   2 +-
 5 files changed, 9 insertions(+), 249 deletions(-)

diff --git a/flake.nix b/flake.nix
index 5c91c13..af999bc 100644
--- a/flake.nix
+++ b/flake.nix
@@ -53,6 +53,7 @@
     actions-preview-nvim.flake = false;
     actions-preview-nvim.url = "github:aznhe21/actions-preview.nvim";
 
+    nix-lazy-nvim.url = "git+https://git.moritzboeh.me/moritz/NixLazy.nvim";
 
     # Hyprland
     hypr-contrib.url = "github:hyprwm/contrib";
@@ -126,6 +127,7 @@
             useGlobalPkgs = true;
             useUserPackages = true;
             extraSpecialArgs = { inherit inputs self; };
+            sharedModules = [ inputs.nix-lazy-nvim.homeManagerModules.default ];
           };
         }
         inputs.agenix.nixosModules.age
diff --git a/modules/programs/nvim/default.nix b/modules/programs/nvim/default.nix
index 4d95a7b..bd14433 100644
--- a/modules/programs/nvim/default.nix
+++ b/modules/programs/nvim/default.nix
@@ -3,242 +3,11 @@
 with lib;
 let
   cfg = config.my.programs.nvim;
-  toLua = value: with builtins;
-    if value == null then "nil" else
-    if isBool value then boolToString value else
-    if isInt value || isFloat value then toString value else
-    if isString value then string value else
-    if isAttrs value then attrs value else
-    if isList value then list value else
-    abort "should never happen (value = ${value})";
-
-  string = str: ''"${toString str}"'';
-  attrs = set:
-    let
-      toKeyword = name: value: "${name} = ${toLua value}";
-      keywords = concatStringsSep ", " (mapAttrsToList toKeyword set);
-    in
-    "{ " + keywords + " }";
-
-  listContent = values: concatStringsSep ", " (map toLua values);
-  list = values: "{ " + listContent values + " }";
-
-  luaList = values: "{" + (concatStringsSep ", " values) + "}";
-
-  keybinding = { key, cmd, func, mode, desc }:
-    let
-      cmdString =
-        if cmd != null then toLua cmd else
-        if func != null then func else
-        abort "Either cmd or function must be set";
-      descString = optionalString (desc != null) "desc = ${toLua desc},";
-    in
-    ''{ ${toLua key}, ${cmdString}, mode = ${toLua mode}, ${descString} }'';
-
-  lazySpecFromPlugin =
-    { cmd
-    , conf
-    , dependencies
-    , enabled
-    , event
-    , ft
-    , init
-    , keys
-    , lazy
-    , opts
-    , plugin
-    , priority
-    }:
-
-    luaList
-      ([
-        "dir = ${string plugin}"
-        "name = ${toLua (getName plugin)}"
-      ]
-      ++ (optional (opts != null) "opts = ${toLua opts}")
-      ++ (optional (lazy != null) "lazy = ${toLua lazy}")
-      ++ (optional (!enabled) "enabled = ${toLua enabled}")
-      ++ (optional (dependencies != [ ]) "dependencies = ${luaList (map lazySpecFromPlugin dependencies)}")
-      ++ (optional (init != null) "init = function(plugin)\n${init}\nend")
-      ++ (optional (conf != null) "config = function(plugin, opts)\n${conf}\nend")
-      ++ (optional (keys != [ ]) "keys = ${luaList (map keybinding keys)}")
-      ++ (optional (event != [ ]) "event = ${toLua event}")
-      ++ (optional (cmd != [ ]) "cmd = ${toLua cmd}")
-      ++ (optional (ft != [ ]) "ft = ${toLua ft}")
-      ++ (optional (priority != null) "priority = ${toLua priority}")
-      );
-  lazySpecs = luaList (map lazySpecFromPlugin cfg.plugins);
-  lazy = /* lua */ ''
-    require("lazy").setup(${lazySpecs})
-  '';
-
-  initLua =
-    let
-      text = lib.concatLines [ (builtins.readFile ./options.lua) lazy ];
-    in
-    pkgs.runCommand "init.lua" { inherit text; } ''
-      touch $out
-      echo -n "$text" > $out
-      ${getExe pkgs.stylua} $out
-    '';
-
 in
 {
   imports = lib.my.listModulesRec ./plugins;
 
-  options.my.programs.nvim = {
-    enable = mkEnableOption "nvim";
-    plugins = mkOption {
-      default = [ ];
-      description = ''
-        List of plugins with config.
-      '';
-      type = with types; listOf (
-        let
-          sub = submodule {
-            options = {
-              conf = mkOption {
-                type = nullOr str;
-                default = null;
-                description = ''
-                  Lua function to be executed when the plugin is loaded.
-                '';
-              };
-              opts = mkOption {
-                type =
-                  let
-                    valueType = nullOr
-                      (oneOf [
-                        str
-                        bool
-                        int
-                        float
-                        (listOf valueType)
-                        (attrsOf valueType)
-                      ]) // {
-                      description = "Lua value";
-                    };
-                  in
-                  nullOr (attrsOf valueType);
-                default = null;
-                description = ''
-                  Lua table to be passed to te plugin config function.
-                '';
-              };
-              dependencies = mkOption {
-                type = listOf sub;
-                default = [ ];
-                description = ''
-                  List of plugins this plugin depends on.
-                '';
-              };
-              init = mkOption {
-                type = nullOr str;
-                default = null;
-                description = ''
-                  Lua code to be executed when the plugin is initialized.
-                '';
-              };
-              event = mkOption {
-                type = listOf str;
-                default = [ ];
-                description = ''
-                  Event to load the plugin on.
-                '';
-              };
-              lazy = mkOption {
-                type = nullOr bool;
-                default = null;
-                description = ''
-                  Whether to load the plugin lazily.
-                '';
-              };
-              plugin = mkOption {
-                type = package;
-                description = ''
-                  The plugin package.
-                '';
-              };
-              enabled = mkOption {
-                type = bool;
-                default = true;
-                description = ''
-                  Whether to enable the plugin.
-                '';
-              };
-              cmd = mkOption {
-                type = listOf str;
-                default = [ ];
-                description = ''
-                  Command to load the plugin.
-                '';
-              };
-              ft = mkOption {
-                type = listOf str;
-                default = [ ];
-                description = ''
-                  Filetype to load the plugin on.
-                '';
-              };
-              priority = mkOption {
-                type = nullOr int;
-                default = null;
-                description = ''
-                  Priority to load the plugin.
-                '';
-              };
-              keys = mkOption {
-                default = [ ];
-                description = ''
-                  List of keybindings.
-                '';
-                type = listOf (submodule {
-                  options = {
-                    key = mkOption {
-                      type = str;
-                      description = ''
-                        Key to bind.
-                      '';
-                    };
-                    cmd = mkOption {
-                      type = nullOr str;
-                      default = null;
-                      description = ''
-                        Command to execute.
-                      '';
-                    };
-                    func = mkOption {
-                      type = nullOr str;
-                      default = null;
-                      description = ''
-                        Function to execute.
-                      '';
-                    };
-                    mode = mkOption {
-                      type = listOf str;
-                      default = [ "n" ];
-                      description = ''
-                        Mode to bind the key in.
-                      '';
-                    };
-                    desc = mkOption {
-                      type = nullOr str;
-                      default = null;
-                      description = ''
-                        Description of the keybinding.
-                      '';
-                    };
-                  };
-                });
-              };
-            };
-          };
-        in
-        sub
-      );
-    };
-  };
-
+  options.my.programs.nvim.enable = mkEnableOption "nvim";
 
   config = mkIf cfg.enable {
     home-manager.users.moritz = {
@@ -250,8 +19,6 @@ in
         )
       ];
 
-      xdg.configFile."nvim/init.lua".source = initLua;
-
       programs.neovim = {
         enable = true;
         package = pkgs.neovim-nightly;
@@ -259,14 +26,6 @@ in
         vimdiffAlias = true;
         withNodeJs = true;
         withPython3 = true;
-        extraPython3Packages = ps:
-          let
-            plugins = map (getAttr "plugin") cfg.plugins;
-            depAttrName = "python3Dependencies";
-            filtered = filter (hasAttr depAttrName) plugins;
-            funcs = map (getAttr depAttrName) filtered;
-          in
-          foldl (list: f: list ++ (f ps)) [ ] funcs;
         extraPackages = with pkgs;
           [
             alejandra
@@ -288,9 +47,8 @@ in
             typst-lsp
             yamlfmt
           ];
-        plugins = [
-          pkgs.vimPlugins.lazy-nvim
-        ];
+        extraLuaConfig = readFile ./options.lua;
+        lazy.enable = true;
       };
     };
   };
diff --git a/modules/programs/nvim/plugins/coding.nix b/modules/programs/nvim/plugins/coding.nix
index e44d7ab..a9e460f 100644
--- a/modules/programs/nvim/plugins/coding.nix
+++ b/modules/programs/nvim/plugins/coding.nix
@@ -1,8 +1,8 @@
-{ pkgs, ... }:
+{ pkgs, lib, ... }:
 
 with builtins;
 {
-  config.my.programs.nvim.plugins = with pkgs.vimPlugins; [
+  config.home-manager.users.moritz.programs.neovim.lazy.plugins = with pkgs.vimPlugins; [
     {
       plugin = formatter-nvim;
       cmd = [ "Format" "Fmt" ];
diff --git a/modules/programs/nvim/plugins/treesitter.nix b/modules/programs/nvim/plugins/treesitter.nix
index d4c3cf0..b76bcbc 100644
--- a/modules/programs/nvim/plugins/treesitter.nix
+++ b/modules/programs/nvim/plugins/treesitter.nix
@@ -2,7 +2,7 @@
 
 with builtins;
 {
-  config.my.programs.nvim.plugins = with pkgs.vimPlugins; [
+  config.home-manager.users.moritz.programs.neovim.lazy.plugins = with pkgs.vimPlugins; [
     {
       plugin = nvim-treesitter;
       event = [ "BufReadPost" "BufNewFile" ];
diff --git a/modules/programs/nvim/plugins/ui.nix b/modules/programs/nvim/plugins/ui.nix
index 0e535c4..92e5fd5 100644
--- a/modules/programs/nvim/plugins/ui.nix
+++ b/modules/programs/nvim/plugins/ui.nix
@@ -2,7 +2,7 @@
 
 with builtins;
 {
-  config.my.programs.nvim.plugins = with pkgs.vimPlugins; [
+  config.home-manager.users.moritz.programs.neovim.lazy.plugins = with pkgs.vimPlugins; [
     {
       plugin = which-key-nvim;
       lazy = false;