feat(lsp): automatically resolve denols/tsserver conflicts if both are configured

lua/lazyvim/plugins/lsp/init.lua

@@ -75,10 +75,11 @@ return {
     },
     ---@param opts PluginLspOpts
     config = function(_, opts)
+      local Util = require("lazyvim.util")
       -- setup autoformat
       require("lazyvim.plugins.lsp.format").autoformat = opts.autoformat
       -- setup formatting and keymaps
-      require("lazyvim.util").on_attach(function(client, buffer)
+      Util.on_attach(function(client, buffer)
         require("lazyvim.plugins.lsp.format").on_attach(client, buffer)
         require("lazyvim.plugins.lsp.keymaps").on_attach(client, buffer)
       end)
@@ -153,6 +154,14 @@ return {
         mlsp.setup({ ensure_installed = ensure_installed })
         mlsp.setup_handlers({ setup })
       end
+
+      if Util.lsp_get_config("denols") and Util.lsp_get_config("tsserver") then
+        local is_deno = require("lspconfig.util").root_pattern("deno.json", "deno.jsonc")
+        Util.lsp_disable("tsserver", is_deno)
+        Util.lsp_disable("denols", function(root_dir)
+          return not is_deno(root_dir)
+        end)
+      end
     end,
   },
 

lua/lazyvim/util/init.lua

@@ -196,4 +196,21 @@ function M.lazy_notify()
   timer:start(500, 0, replay)
 end
 
+function M.lsp_get_config(server)
+  local configs = require("lspconfig.configs")
+  return rawget(configs, server)
+end
+
+---@param server string
+---@param cond fun( root_dir, config): boolean
+function M.lsp_disable(server, cond)
+  local util = require("lspconfig.util")
+  local def = M.lsp_get_config(server)
+  def.document_config.on_new_config = util.add_hook_before(def.document_config.on_new_config, function(config, root_dir)
+    if cond(root_dir, config) then
+      config.enabled = false
+    end
+  end)
+end
+
 return M