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43 lines
1.4 KiB
43 lines
1.4 KiB
/** |
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* Copyright (c) 2015-present, Facebook, Inc. |
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* |
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* This source code is licensed under the MIT license found in the |
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* LICENSE file in the root directory of this source tree. |
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*/ |
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// This webpack plugin lets us interpolate custom variables into `index.html`. |
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// Usage: `new InterpolateHtmlPlugin(HtmlWebpackPlugin, { 'MY_VARIABLE': 42 })` |
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// Then, you can use %MY_VARIABLE% in your `index.html`. |
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// It works in tandem with HtmlWebpackPlugin. |
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// Learn more about creating plugins like this: |
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// https://github.com/ampedandwired/html-webpack-plugin#events |
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'use strict'; |
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const escapeStringRegexp = require('escape-string-regexp'); |
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class InterpolateHtmlPlugin { |
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constructor(htmlWebpackPlugin, replacements) { |
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this.htmlWebpackPlugin = htmlWebpackPlugin; |
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this.replacements = replacements; |
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} |
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apply(compiler) { |
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compiler.hooks.compilation.tap('InterpolateHtmlPlugin', compilation => { |
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this.htmlWebpackPlugin |
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.getHooks(compilation) |
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.afterTemplateExecution.tap('InterpolateHtmlPlugin', data => { |
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// Run HTML through a series of user-specified string replacements. |
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Object.keys(this.replacements).forEach(key => { |
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const value = this.replacements[key]; |
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data.html = data.html.replace( |
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new RegExp('%' + escapeStringRegexp(key) + '%', 'g'), |
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value |
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); |
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}); |
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}); |
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}); |
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} |
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} |
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module.exports = InterpolateHtmlPlugin;
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