@apache-royale/royale-js
Version:
Apache Royale (formerly FlexJS)
99 lines (92 loc) • 4.67 kB
JavaScript
/*
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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.
*
*/
var request = require('request');
var fs = require('fs-extra');
var events = require('events');
var unzip = require('unzipper');
var constants = require('../dependencies/Constants');
var DownloadUncompressAndCopy = module.exports = Object.create(events.EventEmitter.prototype);
DownloadUncompressAndCopy.downloadFile = function(item)
{
var inClose = false;
console.log('Downloading: ' + item.url + item.remoteFileName);
request
.get(item.url + item.remoteFileName)
.on('response', function(response){
if(response.statusCode != 200)
{
console.log('Download failed with status code: ' + response.statusCode);
DownloadUncompressAndCopy.emit('installFail');
}
else
{
response.pipe(fs.createWriteStream(constants.DOWNLOADS_FOLDER + item.remoteFileName, {emitClose:true})
.on('close', function(){
if (inClose) return;
inClose = true;
console.log('Finished downloading: ' + item.url + item.remoteFileName);
if(item.unzip)
{//Unzip
console.log('Uncompressing: ' + constants.DOWNLOADS_FOLDER + item.remoteFileName);
fs.createReadStream(constants.DOWNLOADS_FOLDER + item.remoteFileName)
.pipe(unzip.Parse())
.on('entry', function (entry) {
var fileName = entry.path;
var type = entry.type; // 'Directory' or 'File'
var size = entry.size;
if (fileName === item.pathOfFileToBeCopiedFrom) {
entry.pipe(fs.createWriteStream(item.pathOfFileToBeCopiedTo));
} else {
entry.autodrain();
}
})
.on('finish', function(){
console.log('Finished uncompressing: ' + constants.DOWNLOADS_FOLDER + item.remoteFileName + ' to: ' + item.destinationPath + item.destinationFileName);
DownloadUncompressAndCopy.emit('installComplete');
})
}
else
{//Just copy
if((constants.DOWNLOADS_FOLDER + item.remoteFileName === item.destinationPath + item.destinationFileName))
{
DownloadUncompressAndCopy.emit('installComplete');
}
else
{
if (!fs.existsSync(item.destinationPath)) {
fs.ensureDirSync(item.destinationPath);
}
fs.createReadStream(constants.DOWNLOADS_FOLDER + item.remoteFileName, {emitClose:true})
.pipe(fs.createWriteStream(item.destinationPath + item.destinationFileName))
.on('close', function(){
console.log("Copied " + constants.DOWNLOADS_FOLDER + item.remoteFileName + " to " +
item.destinationPath + item.destinationFileName);
DownloadUncompressAndCopy.emit('installComplete');
});
}
}
})
);
}
})
};
DownloadUncompressAndCopy.install = function(item)
{
DownloadUncompressAndCopy.downloadFile(item);
};