[feat]: conditional formatters

[bennypowers]

I'd like to run prettier if and only if the current project has a prettier config (.prettierrc or prettier in package.json)

prettier.nvim has an option for this https://github.com/MunifTanjim/prettier.nvim#setting-up-prettiernvim

prettier.setup({
  ["null-ls"] = {
    condition = function()
      return prettier.config_exists({
        -- if `false`, skips checking `package.json` for `"prettier"` key
        check_package_json = true,
      })
    end,
    runtime_condition = function(params)
      -- return false to skip running prettier
      return true
    end,
    timeout = 5000,
  }
})

[bennypowers]

I adapted MT's code in my dotfiles

[vuki656]

Here is an example of how you can do it.