Jared Allard
71 lines
2.4 KiB
JavaScript
71 lines
2.4 KiB
JavaScript
/**
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* Copyright (c) 2013 Craig Condon
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* Copyright (c) 2015-2016 Jared Allard
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**/
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'use strict';
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var path = require("path"),
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fs = require("fs");
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/**
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* Embed files.
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*
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* @param {array} resourceFiles - array of files to embed.
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* @param {string} resourceRoot - root of resources.
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* @param {function} compelte - callback
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**/
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function embed(resourceFiles, resourceRoot, complete) {
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function encode(filePath) {
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return fs.readFileSync(filePath).toString('base64');
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}
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resourceFiles = resourceFiles || [];
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resourceRoot = resourceRoot || "";
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if (!Array.isArray(resourceFiles)) {
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throw new Error("Bad Argument: resourceFiles is not an array");
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}
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var buffer = "var embeddedFiles = {\n";
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for (var i = 0; i < resourceFiles.length; ++i) {
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buffer += JSON.stringify(path.relative(resourceRoot, resourceFiles[i])) + ': "';
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buffer += encode(resourceFiles[i]) + '",\n';
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}
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buffer += "\n};\n\nmodule.exports.keys = function () { return Object.keys(embeddedFiles); }\n\nmodule.exports.get = ";
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buffer += accessor.toString();
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complete(null, buffer);
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}
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var accessor = function(key) {
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if (embeddedFiles.hasOwnProperty(key)) {
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return new Buffer(embeddedFiles[key], 'base64');
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} else {
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//file was not embedded, throw err.
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throw new Error('Embedded file not found');
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}
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}
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module.exports = embed;
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