push gopls and lsp changes for nvim 0.7

lua/go/gopls.lua

@@ -106,7 +106,8 @@ end
 function M.version()
   local cache_dir = vim.fn.stdpath("cache")
   local path = string.format("%s%sversion.txt", cache_dir, utils.sep())
-  local gopls = _GO_NVIM_CFG.gopls_cmd or { "gopls" }
+  local cfg = _GO_NVIM_CFG or {}
+  local gopls = cfg.gopls_cmd or { "gopls" }
 
   if vim.fn.executable(gopls[1]) == 0 then
     vim.notify("gopls not found", vim.log.levels.WARN)

lua/go/lsp.lua

@@ -8,13 +8,11 @@ end
 
 if vim.lsp.buf.format == nil then
   -- neovim < 0.7 only
-  log.error("LSP: format is not available")
   vim.lsp.buf.format = vim.lsp.buf.formatting
 end
 
 local codelens_enabled = false
 local on_attach = function(client, bufnr)
-
   local function buf_set_keymap(...)
     vim.api.nvim_buf_set_keymap(bufnr, ...)
   end
@@ -62,8 +60,10 @@ local on_attach = function(client, bufnr)
     if client.server_capabilities.documentFormattingProvider then
       buf_set_keymap("n", "<space>ff", "<cmd>lua vim.lsp.buf.format({async = true})<CR>", opts)
     end
-    if client.resolved_capabilities.document_formatting then
-      buf_set_keymap("n", "<space>ff", "<cmd>lua vim.lsp.buf.format({async = true})<CR>", opts)
+
+    local vim_version = vim.version().major * 100 + vim.version().minor * 10 + vim.version().patch
+    if vim_version < 80 and client.resolved_capabilities.document_formatting then
+      buf_set_keymap("n", "<space>ff", "<cmd>lua vim.lsp.buf.formatting()<CR>", opts)
     end
   elseif type(_GO_NVIM_CFG.lsp_keymaps) == "function" then
     _GO_NVIM_CFG.lsp_keymaps(bufnr)
@@ -141,7 +141,7 @@ function M.setup()
     return
   end
 
-  local vim_version = vim.version().minor * 10 + vim.version().patch
+  local vim_version = vim.version().major * 100 + vim.version().minor * 10 + vim.version().patch
 
   if vim_version < 61 then
     vim.notify("LSP: go.nvim requires neovim 0.6.1 or later", vim.log.levels.WARN)

lua/go/utils.lua

@@ -206,6 +206,9 @@ end
 
 local cache_dir = vim.fn.stdpath("cache")
 util.log = function(...)
+  if not _GO_NVIM_CFG then
+    return
+  end
   if not _GO_NVIM_CFG.verbose then
     return
   end