添加 rails-erb-loader 会破坏 webpacker

Question

我正在尝试启动并运行一个基本的 Rails 部署（rails new project-name --webpack）。一切正常，rake webpacker:compile 工作。但是，一旦我添加 rails-erb-loader (rails webpacker:install:erb) 它就会破坏编译过程。如果 webpacker 开始编译，它只会在“正在编译……”处冻结，并且永远不会结束。这可能会持续数小时而没有结果，直到我终止该过程。没有错误消息。

我尝试过以不同方式格式化包和导入文件，我尝试过将包留空，我尝试过删除所有包都指向空白。我已将问题缩小到默认的库存 Rails 部署，并安装了默认的 rails-erb-loader。 Rails 可以工作，添加 erb 加载程序会破坏它。

我已经从 webpacker 文件夹中的文件中删除了所有 cmets（因为这些将由 ERB 解释）。我还将文件扩展名更改为 .js.erb。 这是 3 天前的工作，我不知道我现在做错了什么。

-- 复制

(Enter into bash)
rails new project-name --webpack
cd project-name
rake webpacker:compile (will work)
rails webpacker:install:erb
rake webpacker:compile (will hang)

-- 控制台输出((--trace 将在“编译..”后不返回任何输出))

rake webpacker:compile
Compiling…
^C#<Thread:0x00007fffc66119f8@/usr/share/rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/open3.rb:287 run> terminated with exception (report_on_exception is true):
Traceback (most recent call last):
        1: from /usr/share/rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/open3.rb:287:in `block (2 levels) in capture3'
/usr/share/rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/open3.rb:287:in `read': stream closed in another thread (IOError)
#<Thread:0x00007fffc66118b8@/usr/share/rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/open3.rb:288 run> terminated with exception (report_on_exception is true):
Traceback (most recent call last):
        1: from /usr/share/rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/open3.rb:288:in `block (2 levels) in capture3'
/usr/share/rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/open3.rb:288:in `read': stream closed in another thread (IOError)
rake aborted!
Interrupt:
/home/melvin/.rvm/gems/ruby-2.6.3/gems/webpacker-4.0.7/lib/webpacker/compiler.rb:61:in `run_webpack'
/home/melvin/.rvm/gems/ruby-2.6.3/gems/webpacker-4.0.7/lib/webpacker/compiler.rb:21:in `compile'
/home/melvin/.rvm/gems/ruby-2.6.3/gems/webpacker-4.0.7/lib/webpacker/commands.rb:18:in `compile'
/home/melvin/.rvm/gems/ruby-2.6.3/gems/webpacker-4.0.7/lib/webpacker.rb:27:in `compile'
/home/melvin/.rvm/gems/ruby-2.6.3/gems/webpacker-4.0.7/lib/tasks/webpacker/compile.rake:31:in `block (4 levels) in <main>'
/home/melvin/.rvm/gems/ruby-2.6.3/gems/webpacker-4.0.7/lib/tasks/webpacker/compile.rake:6:in `ensure_log_goes_to_stdout'
/home/melvin/.rvm/gems/ruby-2.6.3/gems/webpacker-4.0.7/lib/tasks/webpacker/compile.rake:30:in `block (3 levels) in <main>'
/home/melvin/.rvm/gems/ruby-2.6.3/gems/webpacker-4.0.7/lib/webpacker.rb:20:in `with_node_env'
/home/melvin/.rvm/gems/ruby-2.6.3/gems/webpacker-4.0.7/lib/tasks/webpacker/compile.rake:29:in `block (2 levels) in <main>'
/home/melvin/.rvm/gems/ruby-2.6.3/gems/rake-12.3.3/exe/rake:27:in `<top (required)>'
/home/melvin/.rvm/gems/ruby-2.6.3/bin/ruby_executable_hooks:24:in `eval'
/home/melvin/.rvm/gems/ruby-2.6.3/bin/ruby_executable_hooks:24:in `<main>'
Tasks: TOP => webpacker:compile
(See full trace by running task with --trace)

Answer 1

我也遇到了 erb-loader 的问题。在此评论中找到了解决方案。 erb-loader 和 spring 交互存在一些问题，导致冻结。要修复它，只需添加

env:        {
    ...process.env,
    DISABLE_SPRING: 1,
  }

到 erb-loader config(config/webpack/loaders/erb.js) 中的选项，所以整个配置如下所示：

module.exports = {
  test: /\.erb$/,
  enforce: 'pre',
  exclude: /node_modules/,
  use: [{
    loader: 'rails-erb-loader',
    options: {
      runner: (/^win/.test(process.platform) ? 'ruby ' : '') + 'bin/rails runner',
      env:        {
        ...process.env,
        DISABLE_SPRING: 1,
      },
    }
  }]
}