Webpack将“__dirname”返回为“/”

Question

当我尝试用Nestjs后端编译Angular 8应用程序时，webpack似乎对它有问题，并返回__dirname为"/“

我尝试使用其他主题中的建议在配置__dirname中进行设置: true或false，但似乎API不接受此配置。

下面我粘贴了工厂的默认配置和我得到的错误

const webpack = require('webpack');
const WebpackConfigFactory = require('@nestjs/ng-universal')
  .WebpackConfigFactory;

module.exports = WebpackConfigFactory.create(webpack, {
  // Nest server for SSR
  server: './server/main.ts'
});

在成功构建之后，当尝试使用'npm run serve:ssr‘进行编译时，我得到了这样的结果：

Unhandled Promise rejection: ENOENT: no such file or directory, open '//indexTemplate.html.tpl' ; Zone: <root> ; Task: Promise.then ; Value: { Error: ENOENT: no such file or directory, open '//indexTemplate.html.tpl' at Object.openSync (fs.js:438:3) at Object.readFileSync (fs.js:343:35) at Object.generateHTML (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:80659:16) at Function.setupExpress (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:79512:39) at Function.setup (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:79505:21) at C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:129:33 at Generator.next (<anonymous>) at fulfilled (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:95:58) at Zone.run (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:1633:43) errno: -4058, syscall: 'open', code: 'ENOENT', path: '//indexTemplate.html.tpl' } Error: ENOENT: no such file or directory, open '//indexTemplate.html.tpl' at Object.openSync (fs.js:438:3) at Object.readFileSync (fs.js:343:35) at Object.generateHTML (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:80659:16) at Function.setupExpress (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:79512:39) at Function.setup (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:79505:21) at C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:129:33 at Generator.next (<anonymous>) at fulfilled (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:95:58) at ZoneDelegate.invoke (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:1874:26) at Zone.run (C:\Users\Work\PhpstormProjects\terminal-app\dist\server.js:1633:43)

我已经在nestjs/swagger repo中将其作为bug提交，因为从我所看到的情况来看，这主要是由于swagger而发生的。我没有注意到纯Angular 8+上的bug。尽管如此，是否有任何解决方法的线索？

Answer 1

默认情况下，Webpack将__dirname变量mocking到/。

您可以通过禁用此功能来更改它。

// webpack.config.js

module.exports = {
  ...

  node: {
    '__dirname': false
  }
}

Answer 2

在你的webpack.config.js上试试这个

node: {
    __dirname: true,
    __filename: true, <-- in case of need
},