Files
nexe/lib/monkeypatch.js
T

64 lines
2.0 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 async = require("async"),
fs = require("fs"),
_log = require("./log");
/**
* Monkey patch a file.
*
* @param {string} filePath - path to file.
* @param {function} monkeyPatched - function to process contents
* @param {function} processor - TODO: detail what this is
* @param {function} complete - callback
*
* @return undefined
*/
function _monkeypatch (filePath, monkeyPatched, processor, complete) {
async.waterfall([
function read (next) {
fs.readFile(filePath, "utf8", next);
},
// TODO - need to parse gyp file - this is a bit hacker
function monkeypatch (content, next) {
if (monkeyPatched(content)) return complete();
_log("monkey patch %s", filePath);
processor(content, next);
},
function write (content, next) {
fs.writeFile(filePath, content, "utf8", next);
}
], complete);
}
// export the function for require()
module.exports = _monkeypatch;