[neovim] Add which-key plugin

flake.nix

@@ -12,6 +12,8 @@
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
     tmux-dark-notify.flake = false;
     tmux-dark-notify.url = "github:erikw/tmux-dark-notify";
+    which-key-nvim.url = "github:folke/which-key.nvim";
+    which-key-nvim.flake = false;
   };
 
   outputs = inputs: {
@@ -41,6 +43,10 @@
                       name = "auto-dark-mode.nvim";
                       src = inputs.auto-dark-mode-nvim;
                     };
+                    which-key-nvim = prev.vimUtils.buildVimPlugin {
+                      name = "which-key.nvim";
+                      src = inputs.which-key-nvim;
+                    };
                   };
                   nixd = inputs.nixd.packages.${system}.default;
                 })

home/neovim/default.nix

@@ -30,6 +30,7 @@
       ./plugins/solarized
       ./plugins/telescope
       ./plugins/treesitter
+      ./plugins/which-key
       ./plugins/whitespace
     ];
     viAlias = true;

home/neovim/plugins/which-key/config.lua

@@ -0,0 +1,14 @@
+local wk = require("which-key")
+
+wk.setup()
+
+-- Document existing key chains
+wk.add({
+	{ "<leader>c", group = "[C]ode" },
+	{ "<leader>d", group = "[D]ocument" },
+	{ "<leader>r", group = "[R]ename" },
+	{ "<leader>s", group = "[S]earch" },
+	{ "<leader>w", group = "[W]orkspace" },
+	{ "<leader>t", group = "[T]oggle" },
+	{ "<leader>h", group = "Git [H]unk", mode = { "n", "v" } },
+})

home/neovim/plugins/which-key/default.nix

@@ -0,0 +1,9 @@
+{ pkgs, ... }:
+
+[
+  {
+    plugin = pkgs.vimPlugins.which-key-nvim;
+    config = builtins.readFile ./config.lua;
+    type = "lua";
+  }
+]