当前，我仍然没有找到一种官方的内置方法.

Currently, I still have not found an official built-in way to do so.

我打开了 Angular CLI问题，希望能得到CLI团队的回应

I opened an Angular CLI issue and hopefully will get the CLI team response.

与此同时，我的解决方法是使用命令行工具:

In the meantime my workaround is using command line tools:

在package.json中我添加了:

"scripts": {
    ...
    "build": "ng build lib1 --prod && scss-bundle -c scss-bundle.config.json && cp -R projects/lib1/src/assets/ dist/lib1/assets/",
}

要复制SASS文件，我将scss-bundle与包含以下内容的配置文件scss-bundle.config.json一起使用:

To copy the SASS files I use scss-bundle with config file scss-bundle.config.json that contains:

{
  "entry": "./projects/lib1/src/assets/style/main.scss",
  "dest": "./dist/lib1/assets/style/styles.scss"
}

这会将项目的SASS文件构建为1个文件，并将其复制到dist文件夹中.我的SASS文件结构类似于:

This will build the SASS files of the project into 1 file and copy it into the dist folder. My SASS file structure is something like:

-- projects/lib1/src/assets/
                  -- style
                     -- main.scss
                     -- partials
                        -- _variables.scss
                        -- _styles.scss
                        __ _rtl.scss

因此，正如您所看到的，我不想运送所有原始的sass，而只运送一个最终文件.当然，您也可以将其编译为.css文件.

So as you can see I don't want to ship all the raw sass, just one final file. Of course, you can also compile it into a .css file instead.

为确保所有其他资产均被复制，我使用简单的Mac OS/Linux命令cp -R或rsync.

To make sure all other assets are copied, I use a simple Mac OS/Linux command cp -R or rsync.

当然，我运行的是npm run build，而不是运行ng build.

And, of course, instead of running ng build I run npm run build.

希望这会有所帮助，如果您有更好的解决方案，请告诉我.

Hope this helps, and if you have a better solution please let me know.