perf: lazy-load integrations

lua/lazydev/config.lua

@@ -103,11 +103,7 @@ function M.setup(opts)
 
   vim.schedule(function()
     require("lazydev.buf").setup()
-    for name, enabled in pairs(options.integrations) do
-      if enabled then
-        require("lazydev.integrations." .. name).setup()
-      end
-    end
+    require("lazydev.integrations").setup()
   end)
   return options
 end

lua/lazydev/integrations/init.lua

@@ -0,0 +1,53 @@
+local Config = require("lazydev.config")
+
+local M = {}
+
+M.plugins = {
+  ["nvim-cmp"] = "cmp",
+  ["coq_nvim"] = "coq",
+  lspconfig = "lspconfig",
+}
+
+---@type table<string, boolean>
+M.loaded = {}
+
+function M.setup()
+  if package.loaded.lazy then
+    local LazyConfig = require("lazy.core.config")
+    vim.api.nvim_create_autocmd("User", {
+      group = vim.api.nvim_create_augroup("lazydev-integrations", { clear = true }),
+      pattern = "LazyLoad",
+      callback = function(event)
+        local name = M.plugins[event.data]
+        if name then
+          M.load(name)
+        end
+      end,
+    })
+    for name, enabled in pairs(Config.integrations) do
+      if enabled then
+        local plugin = LazyConfig.plugins[M.plugins[name]]
+        local is_loaded = plugin and plugin._.loaded
+        if is_loaded then
+          M.load(name)
+        end
+      end
+    end
+  else
+    for name, enabled in pairs(Config.integrations) do
+      if enabled then
+        M.load(name)
+      end
+    end
+  end
+end
+
+---@param name string
+function M.load(name)
+  if not M.loaded[name] then
+    M.loaded[name] = true
+    require("lazydev.integrations." .. name).setup()
+  end
+end
+
+return M