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// deploy.js

var cmd = require('node-cmd');

var path, node_ssh, ssh, fs

fs = require('fs')

path = require('path')

node_ssh = require('node-ssh')

ssh = new node_ssh()

// the method that starts the deployment process

function main() {

console.log("Deployment started.");

cloneRepo();

}

// responsible for cloning the repo

function cloneRepo() {

console.log("Cloning repo...");

// delete old copy of repo. Then, clone a fresh copy of repo from GitHub

cmd.get(

'rm -rf starter-node-angular && git clone https://github.com/robbender/starter-node-angular.git',

function(err, data, stderr){

console.log("cloneRepo callback\n\t err: " + err + "\n\t data: " + data + "\n\t stderr: " + stderr);

if(err == null){

sshConnect();

}

}

);

}

// transfers local project to the remote server

function transferProjectToRemote(failed, successful) {

return ssh.putDirectory(__dirname + '/starter-node-angular', '/home/ubuntu/starter-node-angular-temp', {

recursive: true,

concurrency: 1,

validate: function(itemPath) {

const baseName = path.basename(itemPath)

return baseName.substr(0, 1) !== '.' && // do not allow dot files

baseName !== 'node_modules' // do not allow node_modules

},

tick: function(localPath, remotePath, error) {

if (error) {

failed.push(localPath)

console.log("failed.push: " + localPath)

} else {

successful.push(localPath)

console.log("successful.push: " + localPath)

}

}

})

}

// creates a temporary folder on the remote server

function createRemoteTempFolder() {

return ssh.execCommand('rm -rf starter-node-angular-temp && mkdir starter-node-angular-temp', { cwd:'/home/ubuntu' })

}

// stops mongodb and node services on the remote server

function stopRemoteServices() {

return ssh.execCommand('npm stop && sudo service mongod stop', { cwd:'/home/ubuntu' })

}

// updates the project on the server

function updateRemoteApp() {

return ssh.execCommand('cp -r starter-node-angular-temp/* starter-node-angular/ && rm -rf starter-node-angular-temp/*', { cwd:'/home/ubuntu' })

}

// restart mongodb and node services on the remote server

function restartRemoteServices() {

return ssh.execCommand('npm start && sudo service mongod start', { cwd:'/home/ubuntu' })

}

// connect to the remote server

function sshConnect() {

console.log("Connecting to the server...");

ssh.connect({

// TODO: ADD YOUR IP ADDRESS BELOW (e.g. '12.34.5.67')

host: 'ec2-54-193-70-10.us-west-1.compute.amazonaws.com',

username: 'ubuntu',

privateKey: 'dep-final.pem'

})

.then(function() {

console.log("SSH Connection established.");

// Create "hackathon-starter-temp" directory on remote server

console.log("Creating `starter-node-angular-temp` folder.");

return createRemoteTempFolder();

})

.then(function(result) {

const failed = []

const successful = []

if(result.stdout){ console.log('STDOUT: ' + result.stdout); }

if(result.stderr){

console.log('STDERR: ' + result.stderr);

return Promise.reject(result.stderr);

}

return transferProjectToRemote(failed, successful);

})

.then(function(status) {

if (status) {

return stopRemoteServices();

} else {

return Promise.reject(failed.join(', '));

}

})

.then(function(status) {

if (status) {

return updateRemoteApp();

} else {

return Promise.reject(failed.join(', '));

}

})

.then(function(status) {

if (status) {

return restartRemoteServices();

} else {

return Promise.reject(failed.join(', '));

}

})

.then(function() {

console.log("Deployment complete.");

process.exit(0);

})

.catch(e => {

console.error(e);

process.exit(1);

})

}

main();