add-asset-html-webpack-plugin
Add a JavaScript or CSS asset to the HTML generated by
html-webpack-plugin
Installation
Install the plugin with npm:
$ npm i add-asset-html-webpack-plugin -D
NOTE: This plugin requires html-webpack-plugin@^2.10.0.
Migrating to webpack 4+
After webpack 4+, it is required to apply AddAssetHtmlPlugin after
HtmlWebpackPlugin to register html-webpack-plugin-before-html-generation
hook which is used inside first, while previous versions of webpack do not care
about it.
Basic Usage
The plugin will add the given JS or CSS file to the files Webpack knows about,
and put it into the list of assets html-webpack-plugin injects into the
generated html. Add the plugin the your config, providing it a filepath:
const HtmlWebpackPlugin = require('html-webpack-plugin');
const AddAssetHtmlPlugin = require('add-asset-html-webpack-plugin');
const webpackConfig = {
entry: 'index.js',
output: {
path: 'dist',
filename: 'index_bundle.js',
},
plugins: [
new HtmlWebpackPlugin(),
new AddAssetHtmlPlugin({ filepath: require.resolve('./some-file') }),
],
};
This will add a script tag to the HTML generated by html-webpack-plugin, and
look like:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Webpack App</title>
</head>
<body>
<script src="index_bundle.js"></script>
<script src="some-file.js"></script>
</body>
</html>
NOTE: You can also pass an array of assets to be added. Same API as mentioned
below, just pass multiple objects as an array.
new AddAssetHtmlPlugin([
{ filepath: require.resolve('./some-file') },
{ filepath: require.resolve('./some-other-file') },
// Glob to match all of the dll file
{ filepath: require.resolve('./**/*.dll.js') },
]);
Options
Options are passed to the plugin during instantiation.
new AddAssetHtmlPlugin({ filepath: require.resolve('./some-file') });
filepath
Type: string, Glob, mandatory
The absolute path of the file you want to add to the compilation, and resulting
HTML file. Also support globby string.
files
Type: string, Array<string>, default `[]
Files that the assets will be added to.
By default the assets will be included in all files. If files are defined, the
assets will only be included in specified file globs.
hash
Type: boolean, default: false
If true, will append a unique hash of the file to the filename. This is useful
for cache busting.
includeRelatedFiles
Type: boolean, default: true
If true, will add filepath + '.*' to the compilation as well. E.g
filepath.map and filepath.gz.
outputPath
Type: string
If set, will be used as the output directory of the file.
publicPath
Type: string
If set, will be used as the public path of the script or link tag.
typeOfAsset
Type: string, default: js
Can be set to css to create a link-tag instead of a script-tag.
attributes
Type: object, default: {}
Extra attributes to be added to the generated tag. Useful to for instance add
nomodule to a polyfill script. The attributes object uses the key as the
name of the attribute, and the value as the value of it. If value is simply
true no value will be added.
An example of this is included in the repository.
Currently only supports script tags.
Examples
When adding assets, it's added to the start of the array, so when
html-webpack-plugin injects the assets, it's before other assets. If you
depend on some order for the assets beyond that, and ordering the plugins
doesn't cut it, you'll have to create a custom template and add the tags
yourself.
Add a DLL file from webpack.DllPlugin
Note: Remember to build the DLL file in a separate build.
See example for an example of how to set it up. You can run it
by cloning this repo, running yarn followed by yarn run example.
Webpack config
const path = require('path');
const webpack = require('webpack');
const webpackConfig = {
entry: {
vendor: ['react', 'redux', 'react-router'],
},
devtool: '#source-map',
output: {
path: path.join(__dirname, 'build'),
filename: '[name].dll.js',
library: '[name]_[hash]',
},
plugins: [
new webpack.DllPlugin({
path: path.join(__dirname, 'build', '[name]-manifest.json'),
name: '[name]_[hash]',
}),
],
};
Your main build:
const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const AddAssetHtmlPlugin = require('add-asset-html-webpack-plugin');
const webpackConfig = {
entry: 'index.js',
output: {
path: 'dist',
filename: 'index_bundle.js',
},
plugins: [
new webpack.DllReferencePlugin({
context: path.join(__dirname),
manifest: require('./build/vendor-manifest.json'),
}),
new HtmlWebpackPlugin(),
new AddAssetHtmlPlugin({
filepath: path.resolve(__dirname, './build/*.dll.js'),
}),
],
};
Add a polyfill file you have locally
See example for an example of how to use it. You can run it
by cloning this repo, running yarn followed by yarn run example.
Webpack config
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const AddAssetHtmlPlugin = require('../../');
const webpackConfig = {
entry: 'entry.js',
devtool: '#source-map',
mode: 'development',
output: {
path: 'dist',
filename: 'index_bundle.js',
},
plugins: [
new HtmlWebpackPlugin(),
new AddAssetHtmlPlugin({
filepath: path.resolve(__dirname, './polyfill.js'),
attributes: {
nomodule: true,
},
}),
],
};