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keksAccountGUI/node_modulesOLD/mini-css-extract-plugin/README.md

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<div align="center">
<!-- replace with accurate logo e.g from https://worldvectorlogo.com/ -->
<img width="200" height="200" src="https://cdn.worldvectorlogo.com/logos/javascript.svg">
<a href="https://webpack.js.org/">
<img width="200" height="200" vspace="" hspace="25" src="https://cdn.rawgit.com/webpack/media/e7485eb2/logo/icon-square-big.svg">
</a>
<h1>mini-css-extract-plugin</h1>
</div>
[![npm][npm]][npm-url]
[![deps][deps]][deps-url]
[![tests][tests]][tests-url]
[![coverage][cover]][cover-url]
[![chat][chat]][chat-url]
This plugin extracts CSS into separate files. It creates a CSS file per JS file which contains CSS. It supports On-Demand-Loading of CSS and SourceMaps.
It builds on top of a new webpack v4 feature (module types) and requires webpack 4 to work.
Compared to the extract-text-webpack-plugin:
- Async loading
- No duplicate compilation (performance)
- Easier to use
- Specific to CSS
<h2 align="center">Install</h2>
```bash
npm install --save-dev mini-css-extract-plugin
```
<h2 align="center">Usage</h2>
### Configuration
#### `publicPath`
Type: `String|Function`
Default: the `publicPath` in `webpackOptions.output`
Specifies a custom public path for the target file(s).
#### Minimal example
**webpack.config.js**
```js
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
module.exports = {
plugins: [
new MiniCssExtractPlugin({
// Options similar to the same options in webpackOptions.output
// both options are optional
filename: '[name].css',
chunkFilename: '[id].css',
}),
],
module: {
rules: [
{
test: /\.css$/,
use: [
{
loader: MiniCssExtractPlugin.loader,
options: {
// you can specify a publicPath here
// by default it uses publicPath in webpackOptions.output
publicPath: '../',
hmr: process.env.NODE_ENV === 'development',
},
},
'css-loader',
],
},
],
},
};
```
#### `publicPath` function example
**webpack.config.js**
```js
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
module.exports = {
plugins: [
new MiniCssExtractPlugin({
// Options similar to the same options in webpackOptions.output
// both options are optional
filename: '[name].css',
chunkFilename: '[id].css',
}),
],
module: {
rules: [
{
test: /\.css$/,
use: [
{
loader: MiniCssExtractPlugin.loader,
options: {
publicPath: (resourcePath, context) => {
// publicPath is the relative path of the resource to the context
// e.g. for ./css/admin/main.css the publicPath will be ../../
// while for ./css/main.css the publicPath will be ../
return path.relative(path.dirname(resourcePath), context) + '/';
},
},
},
'css-loader',
],
},
],
},
};
```
#### Advanced configuration example
This plugin should be used only on `production` builds without `style-loader` in the loaders chain, especially if you want to have HMR in `development`.
Here is an example to have both HMR in `development` and your styles extracted in a file for `production` builds.
(Loaders options left out for clarity, adapt accordingly to your needs.)
**webpack.config.js**
```js
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const devMode = process.env.NODE_ENV !== 'production';
module.exports = {
plugins: [
new MiniCssExtractPlugin({
// Options similar to the same options in webpackOptions.output
// both options are optional
filename: devMode ? '[name].css' : '[name].[hash].css',
chunkFilename: devMode ? '[id].css' : '[id].[hash].css',
}),
],
module: {
rules: [
{
test: /\.(sa|sc|c)ss$/,
use: [
{
loader: MiniCssExtractPlugin.loader,
options: {
hmr: process.env.NODE_ENV === 'development',
},
},
'css-loader',
'postcss-loader',
'sass-loader',
],
},
],
},
};
```
#### Hot Module Reloading (HMR)
extract-mini-css-plugin supports hot reloading of actual css files in development. Some options are provided to enable HMR of both standard stylesheets and locally scoped CSS or CSS modules. Below is an example configuration of mini-css for HMR use with CSS modules.
While we attempt to hmr css-modules. It is not easy to perform when code-splitting with custom chunk names. `reloadAll` is an option that should only be enabled if HMR isn't working correctly. The core challenge with css-modules is that when code-split, the chunk ids can and do end up different compared to the filename.
**webpack.config.js**
```js
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
module.exports = {
plugins: [
new MiniCssExtractPlugin({
// Options similar to the same options in webpackOptions.output
// both options are optional
filename: '[name].css',
chunkFilename: '[id].css',
}),
],
module: {
rules: [
{
test: /\.css$/,
use: [
{
loader: MiniCssExtractPlugin.loader,
options: {
// only enable hot in development
hmr: process.env.NODE_ENV === 'development',
// if hmr does not work, this is a forceful method.
reloadAll: true,
},
},
'css-loader',
],
},
],
},
};
```
### Minimizing For Production
To minify the output, use a plugin like [optimize-css-assets-webpack-plugin](https://github.com/NMFR/optimize-css-assets-webpack-plugin). Setting `optimization.minimizer` overrides the defaults provided by webpack, so make sure to also specify a JS minimizer:
**webpack.config.js**
```js
const TerserJSPlugin = require('terser-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
module.exports = {
optimization: {
minimizer: [new TerserJSPlugin({}), new OptimizeCSSAssetsPlugin({})],
},
plugins: [
new MiniCssExtractPlugin({
filename: '[name].css',
chunkFilename: '[id].css',
}),
],
module: {
rules: [
{
test: /\.css$/,
use: [MiniCssExtractPlugin.loader, 'css-loader'],
},
],
},
};
```
### Features
#### Using preloaded or inlined CSS
The runtime code detects already added CSS via `<link>` or `<style>` tag.
This can be useful when injecting CSS on server-side for Server-Side-Rendering.
The `href` of the `<link>` tag has to match the URL that will be used for loading the CSS chunk.
The `data-href` attribute can be used for `<link>` and `<style>` too.
When inlining CSS `data-href` must be used.
#### Extracting all CSS in a single file
Similar to what [extract-text-webpack-plugin](https://github.com/webpack-contrib/extract-text-webpack-plugin) does, the CSS
can be extracted in one CSS file using `optimization.splitChunks.cacheGroups`.
**webpack.config.js**
```js
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
module.exports = {
optimization: {
splitChunks: {
cacheGroups: {
styles: {
name: 'styles',
test: /\.css$/,
chunks: 'all',
enforce: true,
},
},
},
},
plugins: [
new MiniCssExtractPlugin({
filename: '[name].css',
}),
],
module: {
rules: [
{
test: /\.css$/,
use: [MiniCssExtractPlugin.loader, 'css-loader'],
},
],
},
};
```
#### Extracting CSS based on entry
You may also extract the CSS based on the webpack entry name. This is especially useful if you import routes dynamically
but want to keep your CSS bundled according to entry. This also prevents the CSS duplication issue one had with the
ExtractTextPlugin.
```javascript
const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
function recursiveIssuer(m) {
if (m.issuer) {
return recursiveIssuer(m.issuer);
} else if (m.name) {
return m.name;
} else {
return false;
}
}
module.exports = {
entry: {
foo: path.resolve(__dirname, 'src/foo'),
bar: path.resolve(__dirname, 'src/bar'),
},
optimization: {
splitChunks: {
cacheGroups: {
fooStyles: {
name: 'foo',
test: (m, c, entry = 'foo') =>
m.constructor.name === 'CssModule' && recursiveIssuer(m) === entry,
chunks: 'all',
enforce: true,
},
barStyles: {
name: 'bar',
test: (m, c, entry = 'bar') =>
m.constructor.name === 'CssModule' && recursiveIssuer(m) === entry,
chunks: 'all',
enforce: true,
},
},
},
},
plugins: [
new MiniCssExtractPlugin({
filename: '[name].css',
}),
],
module: {
rules: [
{
test: /\.css$/,
use: [MiniCssExtractPlugin.loader, 'css-loader'],
},
],
},
};
```
#### Long Term Caching
For long term caching use `filename: "[contenthash].css"`. Optionally add `[name]`.
### Remove Order Warnings
If the terminal is getting bloated with chunk order warnings. You can filter by configuring [warningsFilter](https://webpack.js.org/configuration/stats/) withing the webpack stats option
### Media Query Plugin
If you'd like to extract the media queries from the extracted CSS (so mobile users don't need to load desktop or tablet specific CSS anymore) you should use one of the following plugins:
- [Media Query Plugin](https://github.com/SassNinja/media-query-plugin)
- [Media Query Splitting Plugin](https://github.com/mike-diamond/media-query-splitting-plugin)
## License
[MIT](./LICENSE)
[npm]: https://img.shields.io/npm/v/mini-css-extract-plugin.svg
[npm-url]: https://npmjs.com/package/mini-css-extract-plugin
[node]: https://img.shields.io/node/v/mini-css-extract-plugin.svg
[node-url]: https://nodejs.org
[deps]: https://david-dm.org/webpack-contrib/mini-css-extract-plugin.svg
[deps-url]: https://david-dm.org/webpack-contrib/mini-css-extract-plugin
[tests]: https://img.shields.io/circleci/project/github/webpack-contrib/mini-css-extract-plugin.svg
[tests-url]: https://circleci.com/gh/webpack-contrib/mini-css-extract-plugin
[cover]: https://codecov.io/gh/webpack-contrib/mini-css-extract-plugin/branch/master/graph/badge.svg
[cover-url]: https://codecov.io/gh/webpack-contrib/mini-css-extract-plugin
[chat]: https://img.shields.io/badge/gitter-webpack%2Fwebpack-brightgreen.svg
[chat-url]: https://gitter.im/webpack/webpack
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