feat: more lazy loading for faster startup

lua/dressing/init.lua

@@ -1,17 +1,19 @@
-local config = require("dressing.config")
 local patch = require("dressing.patch")
 
 local M = {}
 
 M.setup = function(opts)
-  config.update(opts)
+  require("dressing.config").update(opts)
   patch.all()
 end
 
+---Patch all the vim.ui methods
 M.patch = function()
   patch.all()
 end
 
+---Unpatch all the vim.ui methods
+---@param names? string[] Names of vim.ui modules to unpatch
 M.unpatch = function(names)
   if not names then
     return patch.all(false)

lua/dressing/patch.lua

@@ -1,5 +1,3 @@
-local config = require("dressing.config")
-
 local all_modules = { "input", "select" }
 
 local M = {}
@@ -9,29 +7,36 @@ if not vim.ui then
   vim.ui = {}
 end
 
+local enabled_mods = {}
 M.original_mods = {}
 
+for _, key in ipairs(all_modules) do
+  M.original_mods[key] = vim.ui[key]
+  vim.ui[key] = function(...)
+    local enabled = enabled_mods[key]
+    if enabled == nil then
+      enabled = require("dressing.config")[key].enabled
+    end
+    if enabled then
+      require(string.format("dressing.%s", key))(...)
+    else
+      return M.original_mods[key](...)
+    end
+  end
+end
+
+---Patch or unpatch all vim.ui methods
+---@param enabled? boolean When nil, use the default from config
 M.all = function(enabled)
   for _, name in ipairs(all_modules) do
     M.mod(name, enabled)
   end
 end
 
+---@param name string
+---@param enabled? boolean When nil, use the default from config
 M.mod = function(name, enabled)
-  if enabled == nil then
-    enabled = config[name].enabled
-  end
-  if enabled then
-    if M.original_mods[name] == nil then
-      M.original_mods[name] = vim.ui[name]
-    end
-    vim.ui[name] = require(string.format("dressing.%s", name))
-  else
-    local mod = require(string.format("dressing.%s", name))
-    if vim.ui[name] == mod then
-      vim.ui[name] = M.original_mods[name]
-    end
-  end
+  enabled_mods[name] = enabled
 end
 
 return M