#!/usr/bin/env node
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'use strict';
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/*!
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* Script to generate SRI hashes for use in our docs.
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* Remember to use the same vendor files as the CDN ones,
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* otherwise the hashes won't match!
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*
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* Copyright 2017-2019 The Bootstrap Authors
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* Copyright 2017-2019 Twitter, Inc.
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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*/
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var crypto = require('crypto');
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var fs = require('fs');
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var path = require('path');
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var replace = require('replace-in-file');
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var configFile = path.join(__dirname, '../_config.yml');
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// Array of objects which holds the files to generate SRI hashes for.
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// `file` is the path from the root folder
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// `configPropertyName` is the _config.yml variable's name of the file
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var files = [
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{
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file: 'dist/css/bootstrap.min.css',
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configPropertyName: 'css_hash'
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},
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{
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file: 'dist/css/bootstrap-theme.min.css',
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configPropertyName: 'css_theme_hash'
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},
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{
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file: 'dist/js/bootstrap.min.js',
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configPropertyName: 'js_hash'
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}
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];
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files.forEach(function (file) {
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fs.readFile(file.file, 'utf8', function (err, data) {
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if (err) {
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throw err;
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}
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var algo = 'sha384';
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var hash = crypto.createHash(algo).update(data, 'utf8').digest('base64');
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var integrity = algo + '-' + hash;
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console.log(file.configPropertyName + ': ' + integrity);
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try {
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replace.sync({
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files: configFile,
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from: new RegExp('(\\s' + file.configPropertyName + ':\\s+"|\')(\\S+)("|\')'),
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to: '$1' + integrity + '$3'
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});
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} catch (error) {
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console.error('Error occurred:', error);
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}
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});
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});
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