spacevim/bundle/nvim-lspconfig-0.1.4/lua/lspconfig/server_configurations/vimls.lua

local util = require 'lspconfig.util'

local bin_name = 'vim-language-server'
local cmd = { bin_name, '--stdio' }

if vim.fn.has 'win32' == 1 then
  cmd = { 'cmd.exe', '/C', bin_name, '--stdio' }
end

return {
  default_config = {
    cmd = cmd,
    filetypes = { 'vim' },
    root_dir = util.find_git_ancestor,
    single_file_support = true,
    init_options = {
      isNeovim = true,
      iskeyword = '@,48-57,_,192-255,-#',
      vimruntime = '',
      runtimepath = '',
      diagnostic = { enable = true },
      indexes = {
        runtimepath = true,
        gap = 100,
        count = 3,
        projectRootPatterns = { 'runtime', 'nvim', '.git', 'autoload', 'plugin' },
      },
      suggest = { fromVimruntime = true, fromRuntimepath = true },
    },
  },
  docs = {
    description = [[
https://github.com/iamcco/vim-language-server

You can install vim-language-server via npm:
```sh
npm install -g vim-language-server
```
]],
  },
}