start/lspconfig-0.1.3/lua/lspconfig/server_configurations/dockerls.lua


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local util = require 'lspconfig.util'

local bin_name = 'docker-langserver'
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 = { 'dockerfile' },
    root_dir = util.root_pattern 'Dockerfile',
    single_file_support = true,
  },
  docs = {
    description = [[
https://github.com/rcjsuen/dockerfile-language-server-nodejs

`docker-langserver` can be installed via `npm`:
```sh
npm install -g dockerfile-language-server-nodejs
```
    ]],
    default_config = {
      root_dir = [[root_pattern("Dockerfile")]],
    },
  },
}