Files
nexe/lib/embed.js
T
2015-06-26 18:27:26 -07:00

61 lines
2.1 KiB
JavaScript

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