serverless-spy
Version:
CDK-based library for writing elegant integration tests on AWS serverless architecture and an additional web console to monitor events in real time.
61 lines (51 loc) • 1.37 kB
JavaScript
/*
* Copyright 2010-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
//node.js deps
var fs = require('fs');
//npm deps
//app deps
//begin module
/**
* This is the exposed module.
* This method facilitates copying a file.
*
* @param {String} fileSrc
* @param {String} fileDest
* @param {Function} cb
* @access public
*/
module.exports = function(fileSrc, fileDest, cb) {
var cbCalled = false;
var rd = fs.createReadStream(fileSrc);
rd.on("error", function(err) {
err.fileName = fileSrc;
done(err);
});
var wr = fs.createWriteStream(fileDest);
wr.on("error", function(err) {
err.fileName = fileDest;
done(err);
});
wr.on("close", function(ex) {
done();
});
rd.pipe(wr);
function done(err) {
if (!cbCalled) {
cb(err);
cbCalled = true;
}
}
};