Merge #15879 backports

runtime/lua/vim/lsp/log.lua

@@ -33,6 +33,17 @@ do
 
   vim.fn.mkdir(vim.fn.stdpath('cache'), "p")
   local logfile = assert(io.open(logfilename, "a+"))
+
+  local log_info = vim.loop.fs_stat(logfilename)
+  if log_info and log_info.size > 1e9 then
+    local warn_msg = string.format(
+      "LSP client log is large (%d MB): %s",
+      log_info.size / (1000 * 1000),
+      logfilename
+    )
+    vim.notify(warn_msg)
+  end
+
   -- Start message for logging
   logfile:write(string.format("[START][%s] LSP logging initiated\n", os.date(log_date_format)))
   for level, levelnr in pairs(log.levels) do

test/functional/plugin/lsp_spec.lua

@@ -132,10 +132,6 @@ end
 describe('LSP', function()
   before_each(function()
     clear_notrace()
-  end)
-
-  describe('server_name specified', function()
-    before_each(function()
     -- Run an instance of nvim on the file which contains our "scripts".
     -- Pass TEST_NAME to pick the script.
     local test_name = "basic_init"
@@ -164,6 +160,7 @@ describe('LSP', function()
    -- exec_lua("lsp.stop_all_clients(true)")
   end)
 
+  describe('server_name specified', function()
     it('start_client(), stop_client()', function()
       retry(nil, 4000, function()
         eq(1, exec_lua('return #lsp.get_active_clients()'))