fix(lua): refresh diagnostic for all loaded buffer

lua/coc/diagnostic.lua

@@ -5,29 +5,29 @@ local ns = vim.api.nvim_create_namespace('coc_diagnostic')
 function M.on_diagnostic_change()
   vim.diagnostic.reset(ns)
 
-  local bufnr = vim.api.nvim_get_current_buf()
-  local ok, items = pcall(vim.api.nvim_buf_get_var, bufnr, 'coc_diagnostic_map')
-  if not ok or type(items) ~= 'table' or vim.tbl_isempty(items) then
-    return
+  for _, bufnr in ipairs(vim.api.nvim_list_bufs()) do
+    if vim.api.nvim_buf_is_loaded(bufnr) then
+      local ok, items = pcall(vim.api.nvim_buf_get_var, bufnr, 'coc_diagnostic_map')
+      if ok and type(items) == 'table' and vim.tbl_count(items) > 0 then
+        local diagnostics = {}
+        for _, d in ipairs(items) do
+          diagnostics[#diagnostics + 1] = {
+            bufnr = bufnr,
+            lnum = d.location.range.start.line,
+            end_lnum = d.location.range['end'].line,
+            col = d.location.range.start.character,
+            end_col = d.location.range['end'].character,
+            severity = d.level,
+            message = d.message,
+            source = d.source,
+            code = d.code,
+            namespace = ns,
+          }
+        end
+        vim.diagnostic.set(ns, bufnr, diagnostics)
+      end
+    end
   end
-
-  local diagnostics = {}
-  for _, d in ipairs(items) do
-    diagnostics[#diagnostics + 1] = {
-      bufnr = 0,
-      lnum = d.location.range.start.line,
-      end_lnum = d.location.range['end'].line,
-      col = d.location.range.start.character,
-      end_col = d.location.range['end'].character,
-      severity = d.level,
-      message = d.message,
-      source = d.source,
-      code = d.code,
-      namespace = ns,
-    }
-  end
-
-  vim.diagnostic.set(ns, bufnr, diagnostics)
 end
 
 return M

plugin/coc.lua

@@ -0,0 +1,14 @@
+if vim.fn.has('nvim-0.10') then
+  vim.api.nvim_create_autocmd({ 'BufEnter' }, {
+    callback = function()
+      require('coc.diagnostic').on_diagnostic_change()
+    end,
+  })
+
+  vim.api.nvim_create_autocmd('User', {
+    pattern = 'CocDiagnosticChange',
+    callback = function()
+      require('coc.diagnostic').on_diagnostic_change()
+    end,
+  })
+end

plugin/coc.vim

@@ -414,10 +414,6 @@ function! s:Enable(initialize)
     autocmd BufReadCmd,FileReadCmd,SourceCmd list://* call coc#list#setup(expand('<amatch>'))
     autocmd BufWriteCmd __coc_refactor__* :call coc#rpc#notify('saveRefactor', [+expand('<abuf>')])
     autocmd ColorScheme * call s:Highlight() | call s:Autocmd('ColorScheme')
-
-    if has('nvim-0.10')
-      autocmd User CocDiagnosticChange call v:lua.require('coc.diagnostic').on_diagnostic_change()
-    endif
   augroup end
   if a:initialize == 0
      call coc#rpc#request('attach', [])