Update lspconfig.lua

Organize unused imports for GOLang

lua/plugins/configs/lspconfig.lua

@@ -13,6 +13,26 @@ require("plugins.configs.others").lsp_handlers()
 local win = require "lspconfig.ui.windows"
 local _default_opts = win.default_opts
 
+-- Organize import for GOLang
+vim.api.nvim_create_autocmd("BufWritePre", {
+  pattern = { "*.go" },
+  callback = function()
+    local params = vim.lsp.util.make_range_params(nil, vim.lsp.util._get_offset_encoding())
+    params.context = { only = { "source.organizeImports" } }
+
+    local result = vim.lsp.buf_request_sync(0, "textDocument/codeAction", params, 3000)
+    for _, res in pairs(result or {}) do
+      for _, r in pairs(res.result or {}) do
+        if r.edit then
+          vim.lsp.util.apply_workspace_edit(r.edit, vim.lsp.util._get_offset_encoding())
+        else
+          vim.lsp.buf.execute_command(r.command)
+        end
+      end
+    end
+  end,
+})
+
 win.default_opts = function(options)
    local opts = _default_opts(options)
    opts.border = "single"