Using SCSS variables in CSS Modules

Question

I've a _color.scss file which consists of 400 colors as variables. And I've like 20 components which needs this color variables in their styles.

I'm using SCSS + CSS Modules to construct my styles. As of now, I'm importing this _color.scss in each and every component's style.scss.

Example:

component1.scss

@import "color.scss";

component2.scss

@import "color.scss";

component3.scss

@import "color.scss";

Previously, when I was using SCSS standalone, I'll import the color.scss to my index.scss and import all the other styles below it. By this, the variables will be available across all the components.

Example:

//index.scss
@import "color.scss";
@import "component1.scss";
@import "component2.scss";
@import "component3.scss";

Now, all the variables under _color.scss will be available under component1.scss, component2.scss and component3.scss.

Is there a way to do something similar to this with CSS Modules + SCSS? A single place to declare global varibales?

Pranesh Ravi · Accepted Answer · 2016-11-24 04:54:07Z

The way I'm using now looks pretty clean. So, I'm sharing it to all.

Use sass-resources-loader

This will include the @import to all your .scss files making the variables and mixins available across all the scss files while using css modules.

The [email protected] config

...
    module: {
      rules: [
        {
          test: /\.scss$/,
          loaders: [
            'style-loader',
            'css-loader?modules&importLoaders=1&localIdentName=[path][name]__[local]__[hash:base64:10]',
            'sass-loader',
            'sass-resources-loader',
            'import-glob-loader',
            'postcss-loader',
          ],
        },
     },
     plugins: [
       new webpack.LoaderOptionsPlugin({
        options: {
          postcss: [
            autoprefixer(),
          ],
          sassResources: [
            './app/constants/_style-variables.scss', //include your scss imports here
          ],
          context: path.resolve(__dirname, '../../')
        }
      })
     ]
...

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