added go

configs/lspconfig.lua

@@ -3,6 +3,18 @@ local capabilities  = require("plugins.configs.lspconfig").capabilities
 local lspconfig = require("lspconfig")
 local util = require "lspconfig/util"
 
+lspconfig.gopls.setup {
+  on_attach = on_attach,
+  capabilities = capabilities,
+  cmd = {"gopls"},
+  filetypes = {"go", "gomod", "gowork", "gotmpl"},
+  root_dir = util.root_pattern("go.work", "go.mod", ".git"),
+  settings = {
+    gopls = {
+      completeUnimported = true,
+    },
+  },
+}
 --[[
 lspconfig.rust_analyzer.setup({
   on_attach = on_attach,

configs/null-ls.lua

@@ -0,0 +1,25 @@
+local null_ls = require("null-ls")
+local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
+
+local opts = {
+  sources = {
+    null_ls.builtins.formatting.gofumpt,
+    null_ls.builtins.formatting.goimports_reviser,
+  },
+  on_attach = function(client, bufnr)
+    if client.supports_method("textDocument/formatting") then
+      vim.api.nvim_clear_autocmds({
+        group = augroup,
+        buffer = bufnr,
+      })
+      vim.api.nvim_create_autocmd("BufWritePre", {
+        group = augroup,
+        buffer = bufnr,
+        callback = function()
+          vim.lsp.buf.format({bufnr = bufnr})
+        end,
+      })
+    end
+  end,
+}
+return opts