extract-text-webpack-plugin-updated
v1.0.4
Published
Please use: https://github.com/webpack-contrib/mini-css-extract-plugin
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Readme
DEPRECATED
Please use: https://github.com/webpack-contrib/mini-css-extract-plugin
If you have problem(s) with migration on MiniCssExtractPlugin feel free to open issue with reproducible test repo, thanks
# for webpack 3
npm install --save-dev extract-text-webpack-plugin-updated
# for webpack 2
npm install --save-dev [email protected]
# for webpack 1
npm install --save-dev [email protected]
:warning: Since webpack v4 the
extract-text-webpack-plugin-updated
should not be used for css. Use mini-css-extract-plugin instead.
:warning: For webpack v1, see the README in the webpack-1 branch.
const ExtractTextPlugin = require("extract-text-webpack-plugin-updated");
module.exports = {
module: {
rules: [
{
test: /\.css$/,
use: ExtractTextPlugin.extract({
fallback: "style-loader",
use: "css-loader"
})
}
]
},
plugins: [
new ExtractTextPlugin("styles.css"),
]
}
It moves all the required *.css
modules in entry chunks into a separate CSS file. So your styles are no longer inlined into the JS bundle, but in a separate CSS file (styles.css
). If your total stylesheet volume is big, it will be faster because the CSS bundle is loaded in parallel to the JS bundle.
|Advantages|Caveats|
|:---------|:------|
| Fewer style tags (older IE has a limit) | Additional HTTP request |
| CSS SourceMap (with devtool: "source-map"
and extract-text-webpack-plugin-updated?sourceMap
) | Longer compilation time |
| CSS requested in parallel | No runtime public path modification |
| CSS cached separate | No Hot Module Replacement |
| Faster runtime (less code and DOM operations) | ... |
new ExtractTextPlugin(options: filename | object)
|Name|Type|Description|
|:--:|:--:|:----------|
|id
|{String}
|Unique ident for this plugin instance. (For advanced usage only, by default automatically generated)|
|filename
|{String\|Function}
|Name of the result file. May contain [name]
, [id]
and [contenthash]
|
|allChunks
|{Boolean}
|Extract from all additional chunks too (by default it extracts only from the initial chunk(s))When using CommonsChunkPlugin
and there are extracted chunks (from ExtractTextPlugin.extract
) in the commons chunk, allChunks
must be set to true
|
|disable
|{Boolean}
|Disables the plugin|
|ignoreOrder
|{Boolean}
|Disables order check (useful for CSS Modules!), false
by default|
[name]
name of the chunk[id]
number of the chunk[contenthash]
hash of the content of the extracted file[<hashType>:contenthash:<digestType>:<length>]
optionally you can configure- other
hashType
s, e.g.sha1
,md5
,sha256
,sha512
- other
digestType
s, e.g.hex
,base26
,base32
,base36
,base49
,base52
,base58
,base62
,base64
- and
length
, the length of the hash in chars
- other
:warning:
ExtractTextPlugin
generates a file per entry, so you must use[name]
,[id]
or[contenthash]
when using multiple entries.
#extract
ExtractTextPlugin.extract(options: loader | object)
Creates an extracting loader from an existing loader. Supports loaders of type { loader: [name]-loader -> {String}, options: {} -> {Object} }
.
|Name|Type|Description|
|:--:|:--:|:----------|
|options.use
|{String}
/{Array}
/{Object}
|Loader(s) that should be used for converting the resource to a CSS exporting module (required)|
|options.fallback
|{String}
/{Array}
/{Object}
|loader(e.g 'style-loader'
) that should be used when the CSS is not extracted (i.e. in an additional chunk when allChunks: false
)|
|options.publicPath
|{String}
|Override the publicPath
setting for this loader|
Multiple Instances
There is also an extract
function on the instance. You should use this if you have more than one instance of ExtractTextPlugin
.
const ExtractTextPlugin = require('extract-text-webpack-plugin-updated');
// Create multiple instances
const extractCSS = new ExtractTextPlugin('stylesheets/[name]-one.css');
const extractLESS = new ExtractTextPlugin('stylesheets/[name]-two.css');
module.exports = {
module: {
rules: [
{
test: /\.css$/,
use: extractCSS.extract([ 'css-loader', 'postcss-loader' ])
},
{
test: /\.less$/i,
use: extractLESS.extract([ 'css-loader', 'less-loader' ])
},
]
},
plugins: [
extractCSS,
extractLESS
]
};
Extracting Sass or LESS
The configuration is the same, switch out sass-loader
for less-loader
when necessary.
const ExtractTextPlugin = require('extract-text-webpack-plugin-updated');
module.exports = {
module: {
rules: [
{
test: /\.scss$/,
use: ExtractTextPlugin.extract({
fallback: 'style-loader',
use: ['css-loader', 'sass-loader']
})
}
]
},
plugins: [
new ExtractTextPlugin('style.css')
//if you want to pass in options, you can do so:
//new ExtractTextPlugin({
// filename: 'style.css'
//})
]
}
url()
Resolving
If you are finding that urls are not resolving properly when you run webpack. You can expand your loader functionality with options. The url: false
property allows your paths resolved without any changes.
const ExtractTextPlugin = require('extract-text-webpack-plugin-updated');
module.exports = {
module: {
rules: [
{
test: /\.scss$/,
use: ExtractTextPlugin.extract({
fallback: 'style-loader',
use: [
{
loader: 'css-loader',
options: {
// If you are having trouble with urls not resolving add this setting.
// See https://github.com/webpack-contrib/css-loader#url
url: false,
minimize: true,
sourceMap: true
}
},
{
loader: 'sass-loader',
options: {
sourceMap: true
}
}
]
})
}
]
}
}
Modify filename
filename
parameter could be Function
. It passes getPath
to process the format like css/[name].css
and returns the real file name, css/js/a.css
. You can replace css/js
with css
then you will get the new path css/a.css
.
entry: {
'js/a': "./a"
},
plugins: [
new ExtractTextPlugin({
filename: (getPath) => {
return getPath('css/[name].css').replace('css/js', 'css');
},
allChunks: true
})
]