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InlineChunkHtmlPlugin.js
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Thu, Mar 13, 09:30

InlineChunkHtmlPlugin.js
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/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
'use strict';
class InlineChunkHtmlPlugin {
constructor(htmlWebpackPlugin, tests) {
this.htmlWebpackPlugin = htmlWebpackPlugin;
this.tests = tests;
}
getInlinedTag(publicPath, assets, tag) {
if (tag.tagName !== 'script' || !(tag.attributes && tag.attributes.src)) {
return tag;
}
const scriptName = publicPath
? tag.attributes.src.replace(publicPath, '')
: tag.attributes.src;
if (!this.tests.some(test => scriptName.match(test))) {
return tag;
}
const asset = assets[scriptName];
if (asset == null) {
return tag;
}
return { tagName: 'script', innerHTML: asset.source(), closeTag: true };
}
apply(compiler) {
let publicPath = compiler.options.output.publicPath || '';
if (publicPath && !publicPath.endsWith('/')) {
publicPath += '/';
}
compiler.hooks.compilation.tap('InlineChunkHtmlPlugin', compilation => {
const tagFunction = tag =>
this.getInlinedTag(publicPath, compilation.assets, tag);
const hooks = this.htmlWebpackPlugin.getHooks(compilation);
hooks.alterAssetTagGroups.tap('InlineChunkHtmlPlugin', assets => {
assets.headTags = assets.headTags.map(tagFunction);
assets.bodyTags = assets.bodyTags.map(tagFunction);
});
// Still emit the runtime chunk for users who do not use our generated
// index.html file.
// hooks.afterEmit.tap('InlineChunkHtmlPlugin', () => {
// Object.keys(compilation.assets).forEach(assetName => {
// if (this.tests.some(test => assetName.match(test))) {
// delete compilation.assets[assetName];
// }
// });
// });
});
}
}
module.exports = InlineChunkHtmlPlugin;

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