Hi, Tips!

Install & start:

sudo apt-get install supervisor sudo service supervisor status sudo service supervisor start

then edit /etc/supervisor/conf.d/your_service.conf, for example, I create a netdata config file:

[program:netdata] command = /usr/sbin/netdata autostart = true autorestart = true stdout_logfile = /var/log/supervisor/netdata.log stderr_logfile = /var/log/supervisor/netdata_err.log

then run

sudo supervisorctl reread sudo supervisorctl update

You may also want to check whether your scripts are running.

Install the missing ca-certificates package

sudo apt-get install ca-certificates

Install the missing library:

I just signed up Google Cloud Platform(GCP) and got $300 free usage. It's handy starting at cloud launcher mongo instance if you don't care about the price :p. The following is the installation checklist.

create a cloud computing resource

follow the official guide for installation mongo db

setup iptable rules

set bindIp to 0.0.0.0 in /etc/mongo.conf

I list two different ways below.

rails s --binding=0.0.0.0

localtunnel npm package

For the first method, simplely run up rails server by that command, then access via ip address with port 3000 by default. If you don't have a public ip address(only LAN address), you might need to configure your Router NAT to make port 3000 alow public access. The other way is using localtunnel npm package, install by

$ npm install localtunnel -g

then after running rails server command, run

$ lt --port 3000

Due to the CVE-2016-2324, CVE-2016‑2315 (via https://ma.ttias.be/remote-code-execution-git-versions-client-server-2-7-1-cve-2016-2324-cve-2016-2315/), we should upgrade our git client immediatly to prevent remote code execution :p. In OS X, git comes with XCode Developer tool, but if we want to use the lastest git, it can be installed through Homebrew.

brew install git

and then run command

which git

You may find the path still in /usr/bin/git. Then edit your shell configuration file(~/.bash_profile or ~/.profile or even ~/.zshrc) to place /usr/local/bin/git before /usr/bin For example

export PATH="/usr/local/bin/git:$PATH"

After a clean install of vim bootstrap, my git can't commit with vim editor. Simply fix it by:

Tips: Use both.

word-break: break-words; overflow-wrap: break-word;

via http://stackoverflow.com/questions/31177366/react-native-call-function-of-child-from-navigatorios In parent component, writes

//in import package parts import EventEmitter from 'EventEmitter'; //in your Component class componentWillMount() = => { this.eventEmitter = new EventEmitter(); } handleAction() => { this.eventEmitter.emit('SomeEvent', { someArg: 'argValue' }); }

Then pass on this.eventEmitter as props to child component.

<ChildComponent event={this.eventEmitter} />

Finally add a listener for handling events in child component.

import Subscribable from 'Subscribable'; var ChildComponent = React.createClass({ mixins: [Subscribable.Mixin], componentDidMount() { this.addListenerOn(this.props.events, 'SomeEvent', this.myEventHandler); }, //other code goes here }

Turn on personal hotspot on your iPhonet

Connect your iPhone with USB cable from Mac

Turn on Wifi Internet sharing on your Mac through iPhone USB network

Download Cocoa Packet Analyzer

Run nc -l YOUR_PORT, for example:

nc -l 9000

Find the commit SHA when you deleted the file then checkout back to restore it.

git log --all -- <path-to-file> git checkout <SHA>^ -- /path/to/file

In Search and Filter Rails Models Without Bloating Your Controller this article, he described that you can filtering by multiple params like:

params.slice(:status, :location, :starts_with).each do |key, value| @products = @products.public_send(key, value) if value.present? end

Alternatively you can write:

I encountered this problem someday after upgrading vim through homebrew maybe. I forgot :p. However this problem can be simply solved by:

git config --global core.editor /usr/bin/vim

Simple:

With Paseenger & nginx.

Install passenger and nginx from APT source

Install ruby using rvm

Config nginx passenger path, ruby to rvm source, and root to project public folder