new nvim config

nvim/lua/user/plugins/lang/go.lua

@@ -0,0 +1,43 @@
+local lspservers = {
+    gopls = {
+        settings = {
+            gopls = {
+                analyses = {
+                    unusedvariable = true,
+                    unusedwrite = true,
+                    useany = true,
+                },
+                gofumpt = true,
+            },
+        },
+        on_save = function()
+            local params = vim.lsp.util.make_range_params()
+            params.context = { only = { "source.organizeImports" } }
+            local result = vim.lsp.buf_request_sync(0, "textDocument/codeAction", params, 1000)
+            for cid, res in pairs(result or {}) do
+                for _, r in pairs(res.result or {}) do
+                    if r.edit then
+                        local enc = (vim.lsp.get_client_by_id(cid) or {}).offset_encoding or "utf-16"
+                        vim.lsp.util.apply_workspace_edit(r.edit, enc)
+                    end
+                end
+            end
+            vim.lsp.buf.format({ async = false })
+        end,
+    },
+}
+
+return {
+    {
+        "nvim-treesitter/nvim-treesitter",
+        opts = {
+            ensure_installed = { "go", "gomod", "gowork", "gosum" }
+        }
+    },
+    {
+        "neovim/nvim-lspconfig",
+        opts = {
+            servers = lspservers
+        },
+    }
+}