无法在 windows 上使用 neovim 启动 clangd lsp 服务器

Question

我正在尝试创建一个 neovim 配置，使我能够使用由 cmake 生成的 c++ 项目。

我已经安装了nvim-lspconfig插件，并且我已经安装了 clang 和 Visual Studio 2022 安装程序（声音、 clang-cl and clang-compiler ）。 但是当我在 neovim 中 cd 一个 cmake 根文件夹时，当我打开一个 c++ 文件时，什么都不会发生。 我什至看不到错误。 就像服务器不工作一样。

如何设置 neovim 以使用 Visual Studio 2022 附带的 clang？

这是我的init.lua ：

--- Require ---

local utils = require('utils') -- just to set some keys, not related to the clang problem.

--- Options ---

-- Add number to rows

utils.opt('o', 'number', true)

-- Set indentation of files
local indent = 2
utils.opt('b', 'expandtab', true)
utils.opt('b', 'shiftwidth', indent)
utils.opt('b', 'smartindent', true)
utils.opt('b', 'tabstop', indent)
utils.opt('b', 'autoindent', true)
utils.opt('o', 'smarttab', true)
utils.opt('b', 'softtabstop', indent)

-- Enable the mouse
utils.opt('o', 'mouse', 'a')

-- Set nocompatible mode for more powerful commands
utils.opt('o', 'compatible', false)

-- Set some search options
utils.opt('o', 'showmatch', true)
utils.opt('o', 'ignorecase', true)
utils.opt('o', 'hlsearch', true)
utils.opt('o', 'incsearch', true)

-- Set options for color scheme
utils.opt('o', 'termguicolors', true)

--- Keymappings ---

-- Remap jj to escape in insert mode
utils.map('i', 'jj', '<Esc>')
utils.map('n', 'JJJJ', '<Nop>')

-- Swap ; and :
utils.map('n', ':', ';')
utils.map('n', ';', ':')

-- Start plugin section. Use this section in order to install new plugins to
-- neovim.
--
-- In order to install a new plugin, you need to put in this section the
-- repository where it can be found, and then refresh the plugin list by
-- installing them with the command:
--
-- :PlugInstall

-- Auto install vim-plug that's a plugin manager
local vimplugrepository = ''
local installpath = vim.fn.stdpath('config')..'/autoload'
local vimpluginstallpath = installpath..'/plug.vim'
local vimplugrepository = 'https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'
if vim.fn.empty(vim.fn.glob(vimpluginstallpath)) > 0 then
  vim.api.nvim_command('!curl -flo '..vimpluginstallpath..' --create-dirs '..vimplugrepository)
  vim.cmd 'autocmd VimEnter * PlugInstall'
end
local Plug = vim.fn['plug#']

-- Put plugins in this section. Define a Plug with the repository of the plugin that you want

vim.call('plug#begin', installpath)

-- Vim airline. This plugin creates a nice status bar with more features than
-- standard one.
Plug 'https://github.com/vim-airline/vim-airline'

-- NerdTree is a plugin for showing a tree folder structure of the filesystem.
Plug 'https://github.com/preservim/nerdtree'

-- Vim color schemes
Plug 'https://github.com/rafi/awesome-vim-colorschemes'

-- Developer icons
Plug 'https://github.com/ryanoasis/vim-devicons'

-- Surrounding with parenthesis and xml tags with cs command and more
Plug 'https://github.com/tpope/vim-surround'

-- Show trailing whitespaces and use the command :StripWhitespace for removing
-- them
Plug 'https://github.com/ntpeters/vim-better-whitespace.git'

-- Install the LSP server for configuring it with clangd for code completition
-- in C++
Plug 'https://github.com/neovim/nvim-lspconfig'

-- An interesting theme
Plug 'https://github.com/Pocco81/Catppuccino.nvim'

-- CMake integration. It includes following commands:
-- :CMakeGenerate - it generates the project
-- :CMakeBuild - It builds the project.
-- :CMakeSwitch <config> - It switches between configurations
Plug 'https://github.com/cdelledonne/vim-cmake'

vim.call('plug#end')

--- PLUGINS CONFIGURATION ---

-- Nerdtree

-- Configure keys so with ctrlf go to the tree, with ctrl+n open the tree, and
-- ctrl+t toggle the tree
utils.map('n', '<C-f>', ':NERDTreeFocus<CR>')
utils.map('n', '<C-n>', ':NERDTree<CR>')
utils.map('n', '<C-t>', ':NERDTreeToggle<CR>')

--- LSP CONFIG ---

-- Main configuration
local lspremapopts = { noremap = true, silent = true }
vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, lspremapopts)
vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, lspremapopts)
vim.keymap.set('n', ']d', vim.diagnostic.goto_next, lspremapopts)
vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist, lspremapopts)

-- Use an on_attach function to only map the following keys
-- after the language server attaches to the current buffer
local on_attach = function(client, bufnr)
  -- Enable completition triggered by <c-x><c-o>
  vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')

  -- Mappings
  -- See ':help vim.lsp.*
  local bufopts = { noremap = true, silent = true, buffer = bufnr }
  vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts)
  vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts)
  vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts)
  vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts)
  vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, bufopts)
  vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, bufopts)
  vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, bufopts)
  vim.keymap.set('n', '<space>wl', function ()
    print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
  end, bufopts)
  vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition, bufopts)
  vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, bufopts)
  vim.keymap.set('n', '<space>ca', vim.lsp.buf.code_action, bufopts)
  vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
  vim.keymap.set('n', '<space>f', vim.lsp.buf.formatting, bufopts)
end

-- Now the servers must be defined and set. In order to load them it's
-- convenient to define them in an array and use a loop.
local servers = { 'pyright', 'clangd' }
for _, lsp in pairs(servers) do
  require('lspconfig')[lsp].setup {
    on_attach = on_attach,
    flags = {
      debounce_text_changes = 150
    }
  }
end


--- COLOR SCHEME ---

vim.cmd[[colorscheme catppuccin]]

Answer 1

您可以运行:LspInfo以查看客户端是否附加到缓冲区，并运行:LspLog以获取更多信息。

clangd要么需要在你的路径中，要么你可以指定完整路径：

require('lspconfig')['clangd'].setup {
  on_attach = on_attach,
  cmd = { '<full path to clangd>' }
  flags = {
    debounce_text_changes = 150
  }
}

VS安装的clang不在你的路径中。 如果您从 Visual Studio Developer（命令提示符|PowerShell）运行 neovim，它将被添加到您的路径中。