Question

我们正在从资产管道迁移到Webpacker，我试图寻找一个确定的答案长达数小时，但找不到“正式方法”来将全局scss变量文件用于我的应用程序中的所有scss文件< / p>

例如，我有一个文件colors.scss

$gray: #000000;
$red: #EF6461;

＆我希望所有webpacker scss文件都可以使用这些scss变量，当前我已将该文件导入到application.scss中，但是在每个scss中都出现错误，因为它找不到这些变量，因为我知道webpacker会相互独立地转换scss文件，因此看不到我在application.scss中导入的变量文件

那么如何处理此问题，使全局配置文件可用于webpack（或webpacker）配置本身中的所有scs，而不是手动在每个scss中导入配置文件？

注意：在每个scss中导入配置文件都可以解决此问题，但是它具有重复性和脆弱性

更新

为了解决这个问题，我在进行不同的试验时遇到了不同的编译错误：

1-如果我将样式表保留在webpacker packs文件夹中，那么我从所有scss文件中都会收到许多错误消息，他们不知道我正在使用的scss变量（此问题的核心）

这样的错误：

ERROR in ./app/javascript/packs/stylesheets/components/blog-pages/_blog-index.scss
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ModuleBuildError: Module build failed (from ./node_modules/sass-loader/dist/cjs.js):
SassError: Undefined variable: "$green".
        on line 16 of xxxxxxx/app/javascript/packs/stylesheets/components/blog-pages/_blog-index.scss
>>      color: $green;

   ---------^

2-如果我将样式表放在packs文件夹旁边，则类似的scs会出现其他1比1错误：

    ERROR in ./app/javascript/stylesheets/application.scss
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ModuleBuildError: Module build failed (from ./node_modules/sass-loader/dist/cjs.js):
SassError: File to import not found or unreadable: font-awesome.
        on line 10 of /Users/ahmed/projects/project-hotelhero/app/javascript/stylesheets/application.scss
>> @import "font-awesome";

   ^

ERROR in ./app/javascript/stylesheets/application.scss
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ModuleBuildError: Module build failed (from ./node_modules/sass-loader/dist/cjs.js):
SassError: File to import not found or unreadable: font-awesome.
        on line 10 of XXXXXXXX/app/javascript/stylesheets/application.scss
>> @import "font-awesome";

   ^

    at XXXXXXXX/node_modules/webpack/lib/NormalModule.js:316:20
    at XXXXXXXX/node_modules/loader-runner/lib/LoaderRunner.js:367:11
    at XXXXXXXX/node_modules/loader-runner/lib/LoaderRunner.js:233:18
    at context.callback (XXXXXXXX/node_modules/loader-runner/lib/LoaderRunner.js:111:13)
    at Object.callback (XXXXXXXX/node_modules/sass-loader/dist/index.js:73:7)
    at Object.done [as callback] (XXXXXXXX/node_modules/neo-async/async.js:8067:18)
    at options.error (XXXXXXXX/node_modules/node-sass/lib/index.js:294:32)
Child mini-css-extract-plugin node_modules/css-loader/dist/cjs.js??ref--7-1!node_modules/postcss-loader/src/index.js??ref--7-2!node_modules/sass-loader/dist/cjs.js??ref--7-3!app/javascript/stylesheets/application.scss:

    ERROR in ./app/javascript/stylesheets/application.scss (./node_modules/css-loader/dist/cjs.js??ref--7-1!./node_modules/postcss-loader/src??ref--7-2!./node_modules/sass-loader/dist/cjs.js??ref--7-3!./app/javascript/stylesheets/application.scss)
    Module build failed (from ./node_modules/sass-loader/dist/cjs.js):
    SassError: File to import not found or unreadable: font-awesome.
            on line 10 of XXXXXXXX/app/javascript/stylesheets/application.scss
    >> @import "font-awesome";

       ^

Answer 1

所以我遇到的主要问题是将样式表放置在错误的目录中，并将样式表放置在/app/javascript/packs中，这导致了webpack单独编译每个scss文件的根本问题

正确的方法是将stylesheets文件夹放在packs文件夹旁边，即将其放置在app/javascript/stylesheets中，然后将您的scss整理到application.scss文件中，该文件将正确地调用您的scss文件。

Answer 2

我在链轮搜索-> webpacker迁移时发现了这个问题，并认为我会分享自己的发现。

我最终使用了sass-resources-loader，这是我的配置：

// config/webpack/environment.js

// ...

// sass/scss loader config
const sassLoader = environment.loaders.get('sass')
const sassLoaderConfig = sassLoader.use.find(function (element) {
  return element.loader === 'sass-loader'
})

const options = sassLoaderConfig.options
options.implementation = require('sass') // Use Dart-implementation of Sass (default is node-sass)

const sassResourceLoader = require('./loaders/sass-resource-loader')
environment.loaders.prepend('sass', sassResourceLoader)

//...

// config/webpack/loaders/sass-resource-loader.js

module.exports = {
  test: /\.scss$/,
  use: [
    'style-loader',
    'css-loader',
    'sass-loader',
    {
      loader: 'sass-resources-loader',
      options: {
        resources: [
          './app/javascript/styles/abstract/*.scss' // I've got all my "global" stuff in this one abstracts folder
        ]
      }
    }
  ]
}

如何导出全局scss变量文件以导入到Rails 6 Webpacker中的所有scss文件

更新

2 个答案: