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Bootstrap/grunt/generate-sri.js

63 lines
1.6 KiB
JavaScript

#!/usr/bin/env node
'use strict';
/*!
* Script to generate SRI hashes for use in our docs.
* Remember to use the same vendor files as the CDN ones,
* otherwise the hashes won't match!
*
* Copyright 2017-2019 The Bootstrap Authors
* Copyright 2017-2019 Twitter, Inc.
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/v3-dev/LICENSE)
*/
var crypto = require('crypto');
var fs = require('fs');
var path = require('path');
var replace = require('replace-in-file');
var configFile = path.join(__dirname, '../_config.yml');
// Array of objects which holds the files to generate SRI hashes for.
// `file` is the path from the root folder
// `configPropertyName` is the _config.yml variable's name of the file
var files = [
{
file: 'dist/css/bootstrap.min.css',
configPropertyName: 'css_hash'
},
{
file: 'dist/css/bootstrap-theme.min.css',
configPropertyName: 'css_theme_hash'
},
{
file: 'dist/js/bootstrap.min.js',
configPropertyName: 'js_hash'
}
];
files.forEach(function (file) {
fs.readFile(file.file, 'utf8', function (err, data) {
if (err) {
throw err;
}
var algo = 'sha384';
var hash = crypto.createHash(algo).update(data, 'utf8').digest('base64');
var integrity = algo + '-' + hash;
console.log(file.configPropertyName + ': ' + integrity);
try {
replace.sync({
files: configFile,
from: new RegExp('(\\s' + file.configPropertyName + ':\\s+"|\')(\\S+)("|\')'),
to: '$1' + integrity + '$3'
});
} catch (error) {
console.error('Error occurred:', error);
}
});
});