modules-values-extract
v1.0.5
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Extracts all CSS Module @values from a list of css files into an object
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modules-values-extract
Extracts all CSS Module @values from a list of css files into an object.
This allows you to feed them, for example, to postcss-custom-properties in webpack.config.js
Installation
npm install modules-values-extract --save-dev
Depends on postcss
as a peer dependency.
Usage
In your webpack.config.js:
const fs = require('fs');
const path = require('path');
const extractValues = require('modules-values-extract');
// get all *.css files in current directory:
const cssFiles = fs.readdirSync(__dirname)
.filter((file) => file.match(/\.css/i))
.map((file) => path.resolve(__dirname, file));
let config;
let myVariables;
module.exports = extractValues({
files: cssFiles,
/* optional list of plugin functions to use in processing, for example: */
/* eslint-disable global-require */
plugins: [require('postcss-calc'), require('precss')],
/* eslint-enable global-require */
}).then((variables) => {
myVariables = variables;
return config;
});
config = {
// ... various webpack config
postcss: () => {
return [
/* eslint-disable global-require */
require('postcss-cssnext')({
features: {
customProperties: {
variables: myVariables,
},
},
}),
require('postcss-modules-values'),
/* eslint-enable global-require */
];
},
};
Note that the above module.exports in wepback.config.js is actually a Promise that resolves to the config object, not the config object itself.
This requires webpack-dev-server 2.x or 1.16.3+.
It is also probably not supported by the babel webpack-alias plugin.