feature: diagnostic sign in scroll bar area enable by default

README.md

@@ -216,7 +216,8 @@ require'navigator'.setup({
 
   lsp = {
     format_on_save = true, -- set to false to disasble lsp code format on save (if you are using prettier/efm/formater etc)
-    diag_scroll_bar_sign = nil, -- experimental: set to {'╍', 'ﮆ'} to enable diagnostic status in scroll bar area
+    diag_scroll_bar_sign = {'▃', '█'}, -- experimental:  diagnostic status in scroll bar area; set to nil to disable the diagnostic sign,
+    -- for other style, set to {'╍', 'ﮆ'} or {'-', '='}
 
     disply_diagnostic_qf = true, -- always show quickfix if there are diagnostic errors, set to false if you  want to
     ignore it

lua/navigator.lua

@@ -19,7 +19,7 @@ _NgConfigValues = {
   lsp = {
     format_on_save = true, -- set to false to disasble lsp code format on save (if you are using prettier/efm/formater etc)
     disply_diagnostic_qf = true, -- always show quickfix if there are diagnostic errors
-    diag_scroll_bar_sign = nil, -- set to {'╍', 'ﮆ'} to enable diagnostic status in scroll bar area
+    diag_scroll_bar_sign = {'▃', '█'}, -- set to nil to disable, set to {'╍', 'ﮆ'} to enable diagnostic status in scroll bar area
     tsserver = {
       -- filetypes = {'typescript'} -- disable javascript etc,
       -- set to {} to disable the lspclient for all filetype

lua/navigator/diagnostics.lua

@@ -24,7 +24,7 @@ local function error_marker(result, client_id)
     return
   end
 
-  log(result, bufnr)
+  trace(result, bufnr)
 
   if result == nil or result.diagnostics == nil or #result.diagnostics == 0 then
     local diag_cnt = vim.lsp.diagnostic.get_count(bufnr, [[Error]])
@@ -35,19 +35,20 @@ local function error_marker(result, client_id)
     return
   end
 
-  if _NG_VT_NS == nil then
-    _NG_VT_NS = vim.api.nvim_create_namespace("navigator_lua")
-  end
-
-  vim.api.nvim_buf_clear_namespace(0, _NG_VT_NS, 0, -1)
-
   -- total line num of current buffer
   local winid = vim.fn.win_getid(vim.fn.winnr())
   local total_num = vim.fn.getbufinfo(vim.fn.winbufnr(winid))[1].linecount
   -- window size of current buffer
   local wwidth = vim.fn.winwidth(winid)
   local wheight = vim.fn.winheight(winid)
+  if total_num <= wheight then
+    return
+  end
+  if _NG_VT_NS == nil then
+    _NG_VT_NS = vim.api.nvim_create_namespace("navigator_lua")
+  end
 
+  vim.api.nvim_buf_clear_namespace(0, _NG_VT_NS, 0, -1)
   if total_num <= wheight then
     first_line = 0
   end