提示器和格式化
如果设置一个格式化器,将覆盖语言服务器本身的格式化能力。
最简单的方法是通过名字来引用 linter/formatter/code_actions。请参阅null-ls 文档,了解带有名称的完整内置程序列表。
例子:
local formatters = require "lvim.lsp.null-ls.formatters"
formatters.setup {
  { name = "black" },
  {
    name = "prettier",
    ---@usage arguments to pass to the formatter
    -- these cannot contain whitespace
    -- options such as `--line-width 80` become either `{"--line-width", "80"}` or `{"--line-width=80"}`
    args = { "--print-width", "100" },
    ---@usage only start in these filetypes, by default it will attach to all filetypes it supports
    filetypes = { "typescript", "typescriptreact" },
  },
}
local linters = require "lvim.lsp.null-ls.linters"
linters.setup {
  { name = "flake8" },
  {
    name = "shellcheck",
    args = { "--severity", "warning" },
  },
}
local code_actions = require "lvim.lsp.null-ls.code_actions"
code_actions.setup {
  {
    name = "proselint",
  },
}
安装linters/formatters
你可以使用 :Mason 来安装大多数支持的linters和formatters,如果你找不到你要找的东西,请参考每个工具各自的手册,了解安装步骤。
懒加载linter/formatter/code_actions设置
默认情况下,所有的null-ls提供者都在启动时被检查。如果你想避免这一点,或者想只在打开相关文件类型时设置提供者,那么你可以使用filetype plugins来实现这一目的。
让我们以 python 为例:
- 在 - $LUNARVIM_CONFIG_DIR/after/ftplugin文件夹中创建一个名为- python.lua的文件
- 添加以下代码片段 - local linters = require "lvim.lsp.null-ls.linters"
 linters.setup { { command = "flake8", filetypes = { "python" } } }
保存时格式化
- 要在保存时启用格式化: - lvim.format_on_save.enabled = true
- Only enable it for certain filetypes: - lvim.format_on_save.enabled = true
 lvim.format_on_save.pattern = { "*.lua", "*.py" }
注册自定义 linters/formatters
LunarVim支持所有定义为null-ls的内建程序的linters和formatters,然而在某些场合下,你可能想运行一个null-ls不支持的linter/formatter。
详情请参考null-ls repo中的各种文档,了解configuring built-in sources和helpers for making builtins。
提示
不要在你的LunarVim config中(i.e. 在 formatters.setup 块中)加载已注册的、自定义的linter/formatters。这样做会引起一个错误,即 builtin source could not be found。
下面是一个注册htmlbeautifierformatter的例子
local helpers = require("null-ls.helpers")
local FORMATTING = require("null-ls.methods").internal.FORMATTING
require("null-ls").register({
  --your custom sources go here
  helpers.make_builtin({
    name = "htmlbeautifier",
    meta = {
      url = "https://github.com/threedaymonk/htmlbeautifier",
      description = "A normaliser/beautifier for HTML that also understands embedded Ruby. Ideal for tidying up Rails templates."
    },
    method = FORMATTING,
    filetypes = { "eruby" },
    generator_opts = {
      command = "htmlbeautifier",
      args = {}, -- put any required arguments in this table
      to_stdin = true, -- instructs the command to ingest the file from STDIN (i.e. run the currently open buffer through the linter/formatter)
    },
    factory = helpers.formatter_factory,
  })
})