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setup.js
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setup.js
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var fs = require('fs');
var inquirer = require('inquirer');
var gutil = require('gulp-util');
var exec = require('child_process').exec;
/*
This Setup Script tries to do the following things:
1. configure IP
2. select DB
3. select install path
4. start all the things
//5. autostart?
*/
var questionFactory = {
interface: () => getListOfInterfaces()
.then(interfaces => {
return {
type: 'list',
name: 'interface',
message: 'Which Network Interface do you want to use?',
choices: interfaces,
validate: function (answer) {
return getAddressForInterface(answer.interface)
.then(address => {
if (!address) {
return 'No IP Address was found for this interface!';
}
return true;
})
}
};
}),
database: () => {
return Promise.resolve({
type: 'list',
name: 'databaseType',
message: 'What Database do you wish to use?',
choices: [
{
name: 'Local' + gutil.colors.grey(' - already running'),
value: 'local'
},
{
name: 'Docker' + gutil.colors.grey(' - start locally with docker (requires Docker installed and working for the current user)'),
value: 'docker'
},
{
name: 'Remote' + gutil.colors.grey(' - enter a remote address next'),
value: 'remote'
},
]
});
},
autostart: () => {
return Promise.resolve({
type: 'confirm',
name: 'autostart',
message: 'Do you wish to automatically start the lightnet server on boot?'
});
},
startnow: () => {
return Promise.resolve({
type: 'confirm',
name: 'startnow',
message: 'Do you wish to start the lightnet server now?'
});
}
};
function askQuestions(interfaces) {
return Promise.all([
questionFactory.interface(),
questionFactory.database(),
questionFactory.startnow(),
//questionFactory.autostart()
]).then(questions => inquirer.prompt(questions));
}
function getListOfInterfaces() {
var cmd = 'ifconfig | sed \'s/[ \t].*//;/^\(lo\|\)$/d\'';
return new Promise(function(resolve, reject) {
exec(cmd, function(error, stdout, stderr) {
if (error) {
console.error(error);
reject(error);
return;
}
resolve(stdout
.split('\n')
.map(interface => {
var result = interface.trim();
if (result.indexOf(':') === result.length - 1) {
result = result.substr(0, result.length - 1);
}
return result;
})
.filter(interface => !!interface));
});
});
}
function getAddressForInterface(interface) {
return new Promise(function(resolve, reject) {
var cmd = 'ifconfig ' + interface + '| grep "inet " | grep -v 127.0.0.1 | awk \'{print $2}\'';
exec(cmd, function(error, stdout, stderr) {
if (error) {
console.error(error);
reject(error);
return;
}
if (stdout.indexOf('addr:') >= 0) {
stdout = stdout.replace('addr:', '');
}
resolve(stdout.trim());
});
});
}
function npmInstall(directory) {
return new Promise(function(resolve, reject) {
var cmd = 'cd ' + directory + ' && npm install';
exec(cmd, function(error, stdout, stderr) {
if (error) {
console.error(error);
reject(error);
return;
}
console.log('done.');
resolve(stdout);
});
});
}
function npmStart(directory) {
return new Promise(function(resolve, reject) {
var cmd = 'cd ' + directory + ' && npm run daemon';
exec(cmd, function(error, stdout, stderr) {
if (error) {
console.error(error);
reject(error);
return;
}
console.log('done.');
resolve(stdout);
});
});
}
function startMongoInDocker(mongoImage) {
return new Promise(function(resolve, reject) {
console.log('Starting Docker container (' + containerName + ') as daemon.');
var containerName = 'lightnet_mongo';
var cmd = 'docker run -d -p 27017:27017 --hostname ' + containerName + ' --name ' + containerName + ' ' + mongoImage;
exec(cmd, function(error, stdout, stderr) {
if (error) {
console.error(error);
reject(error);
return;
}
console.log('done.');
resolve(containerName);
});
});
}
function handleDBSelection(databaseType) {
if (databaseType === 'local') {
return Promise.resolve('mongodb://localhost:27017/lightnet');
} else if (databaseType === 'docker') {
return startMongoInDocker('mongo')
.then(containerName => {
return 'mongodb://localhost:27017/lightnet';
})
} else if (databaseType === 'remote') {
return askForDBUrl()
.then(answer => answer.dbUrl);
} else {
throw new Error('tsnh - unexpected choice', databaseType);
}
}
function updateServerConfig(updateFunc) {
var fileName = './server/config.json';
var config = require(fileName);
updateFunc(config);
fs.writeFileSync(fileName, JSON.stringify(config, null, '\t'), 'utf8');
return Promise.resolve();
}
function updateWebInterfaceConfig(ipAddress) {
var fileName = './webinterface/public/js/config.js';
var config = fs.readFileSync(fileName, 'utf-8');
var re = /(.*apiUrl: ')([^']*)('.*)/;
config = config.replace(re, '$1http://' + ipAddress + ':4050/api/$3');
fs.writeFileSync(fileName, config, 'utf-8');
return Promise.resolve();
}
function startLightnet() {
return Promise.resolve()
.then(() => {
console.log('Installing dependencies for the ' + gutil.colors.cyan('Lightnet Server'));
return npmInstall('server');
}).then(() => {
console.log('Installing dependencies for the ' + gutil.colors.cyan('Lightnet Webinterface'));
return npmInstall('webinterface');
}).then(() => {
console.log('Starting the ' + gutil.colors.cyan('Lightnet Server'));
return npmStart('server', 'npm start');
}).then(() => {
console.log('Starting the ' + gutil.colors.cyan('Lightnet Webinterface'));
return npmStart('webinterface', 'npm start');
}).then(() => {
//TODO start server and webinterface
});
}
console.log('\n\n'+
'╔════════════════════════════════════════════════════════════════════════════════════╗\n'+
'║ __ __ ______ __ __ ______ __ __ ______ ______ ║\n'+
'║ /\\ \\ /\\ \\ /\\ ___\\ /\\ \\_\\ \\ /\\__ _\\ /\\ "-.\\ \\ /\\ ___\\ /\\__ _\\ ║\n'+
'║ \\ \\ \\____ \\ \\ \\ \\ \\ \\__ \\ \\ \\ __ \\ \\/_/\\ \\/ \\ \\ \\-. \\ \\ \\ __\\ \\/_/\\ \\/ ║\n'+
'║ \\ \\_____\\ \\ \\_\\ \\ \\_____\\ \\ \\_\\ \\_\\ \\ \\_\\ \\ \\_\\\\"\\_\\ \\ \\_____\\ \\ \\_\\ ║\n'+
'║ \\/_____/ \\/_/ \\/_____/ \\/_/\\/_/ \\/_/ \\/_/ \\/_/ \\/_____/ \\/_/ ║\n'+
'║ ║\n'+
'╚════════════════════════════════════════════════════════════════════════════════════╝\n'+
gutil.colors.bold('\n LightNet Automated Setup v' + require('./package.json').version + ' \n\n')+
'This setup will ask you a few questions to determine your lightnet configuration. \n');
console.log('# running in node v' + process.versions.node + '\n\n');
askQuestions()
.then(answers => {
return getAddressForInterface(answers.interface)
.then(address => {
answers.ipAddress = address;
return answers;
});
})
.then(answers => {
return handleDBSelection(answers.databaseType)
.then(dbUrl => {
answers.database = dbUrl;
return answers;
});
})
.then(answers => {
console.log('using IP ' + gutil.colors.cyan(answers.ipAddress));
console.log('using DB at ' + gutil.colors.cyan(answers.database));
return updateServerConfig(config => {
config.appIP = answers.ipAddress;
config.dbUrl = answers.database;
}).then(() => {
return updateWebInterfaceConfig(answers.ipAddress);
}).then(() => {
console.log('updated config files');
return answers;
});
})
.then(answers => {
if (answers.startnow) {
return startLightnet()
.then(() => answers);
}
return answers;
})
.then(answers => {
if (answers.autostart) {
console.log('Autostart configuration is not yet implemented');
}
return answers;
})
.catch(err => console.error(gutil.colors.red(err)));