Sering menggunakan banyak window atau tab? misalkan membuka vim, ssh ke server, koneksi ke database server, docker di tab yang lain, dan akhirnya akan banyak tab atau window yang dibuka. di Jenius khususnya dan sebagai developer pada umumnya, hal ini pasti terjadi hampir setiap hari.

Agar tidak perlu mengatur banyak window atau tab, hal ini bisa diatur oleh tmux atau Terminal Multiplexer, sebuah command line tool yang berguna diantaranya untuk,

Welcome to Jenius Engineering newsletter #29, this newsletter published every tuesday-ish. please subscribe to our newsletter.

Reading list

• Don’t be fooled by 100% code coverage.
• How to Make Your Code CLEAN and BEAUTIFUL
• Awesome Scalability, Availability, and Stability Back-end Design Patterns
• Some thoughts on Spectre and Meltdown
• Firefox 58: The Quantum Era Continues
• WIP Limit – A further study
• Amazon ElastiCache – easy to understand AWS service diagram
• SlackHQ – Keep webpack Fast: A Field Guide for Better Build Performance
• Canaries in Practice
• How We Simplified our Tooling Setup for Node.js Projects
• A set of best practices for JavaScript projects

News

• Webpack 4 beta 

Tools & Code

• Fir – the Friendly, Interactive Ruby REPL
• Bootstrap 4
• Karmatic – Easy automatic browser testing
• Headless Chrome Node API from Google

These article curated by Jenius Engineering Team and published on jenius.tech, feedback please send to engineer(at)jenius.com

Welcome to Jenius Engineering newsletter #28, this newsletter published every tuesday-ish. please subscribe to our newsletter.

Reading list

• Stream & Go: News Feeds for Over 300 Million End Users
• What Really Happened with Vista: An Insider’s Retrospective
• Chrome is turning into the new Internet Explorer 6
• Implications of Tech Stack Complexity for Executives
• Refactoring with Composed Method pattern
• How we design enterprise software
• Tutorial: Distributed Tracing in Ruby with OpenTracing
• Why Factories?
• How do Ruby & Python profilers work?
• Event-Driven Microservices with RabbitMQ and Ruby
• The Ruby 2.5.0 feature nobody talks about
• Asynchronous JavaScript: From Callback Hell to Async and Await
• Building Your First Node App Using Docker
• Paying Technical Debt - How To Rescue Legacy Code through Refactoring

News

• Announcing The Node.js Application Showcase
• Node v9.4.0 released

Tools & code

• Minimesos
• Redmine Security Scanner
• Polka – micro web server
• Mongoose 5.0

These article curated by Jenius Engineering Team and published on jenius.tech, feedback please send to engineer(at)jenius.com

Welcome to Jenius Engineering newsletter #27, this newsletter published every tuesday-ish. please subscribe to our newsletter.

Reading list

• O’Reilly Free ebooks
• Viewing migration SQL without running the migration
• Build Your First Vue.js Component
• SequelTools – Rake Tasks for Sequel Migrations and database management
• The Brutal Lifecycle of JavaScript Frameworks
• React, Redux and JavaScript Architecture
• New Package Moniker rules
• Node.js + face-recognition.js : Simple and Robust Face Recognition using Deep Learning
• Convert A Node.js RESTful API To Serverless With OpenWhisk
• PostgreSQL is the DBMS of the Year 2017

News

• Leaflet 1.3.0 released
• Ruby 2.5.0 released
• Nodejs v9.4.0 released

Tools

• PostGraphile – Instant GraphQL API for PostgreSQL database
• Speedometer 2.0
• Sweet Alert

These article curated by Jenius Engineering Team and published on jenius.tech, feedback please send to engineer(at)jenius.com

Sebagai developer tentu sudah terbiasa dengan Source Code Management seperti GIT, Mercurial, Bazaar, dan lainnya. pernah menggabungkan Selfie atau swafoto berbarengan dengan dengan commit kode kita? di sini kita akan fokus dengan GIT sebagai SCM.

Langkah-langkah yang ditulis dilakukan di komputer berbasis Mac, belum dicoba di Linux atau Windows.

Kebutuhan

Untuk menginstall paket-paket yang bisa dijalankan di command line kita membutuhkan manajemen paket yang bernama homebrew

install brew

Jalankan perintah ini

$ curl -fsS 'https://raw.githubusercontent.com/Homebrew/install/master/install' | ruby

Perintah di atas akan menginstall beberapa library tambahan untuk macOS.

Install paket

Setelah selesai proses instalasi homebrew dilanjutkan dengan instalasi paket berikut
$ brew install ffmpeg

Opsional
$ brew install imagemagick
$ brew install tlassemble

Setelah selesai semua, cd ke folder project GIT, lihat apakah ada file post-commit di folder .git/hooks/, kalo gak ada bisa ditambahkan melalui $ vim .git/hooks/post-commit, tambahkan line berikut (jangan lupa :set paste + i)

#!/bin/bash

### start post commit ###
if ! command -v ls .gitsnap >/dev/null; then
  printf "creating selfie folder...\n"
  mkdir ~/.gitsnap
fi

FILENAME=''
if command -v git rev-parse HEAD  > /dev/null; then
    FILENAME=$(date +%Y-%m-%d-%H-%M-%s)_FIRST
else
    FILENAME=$(date +%Y-%m-%d-%H-%M-%S)_$(git rev-parse HEAD)
fi
### take a selfie!
printf "📸  trying to take your awesome selfie..... 📸\n"
ffmpeg -f avfoundation -framerate 30 -i "0" -vframes 1 ~/.gitsnap/$FILENAME.jpg -loglevel quiet >> /dev/null

Line di atas akan membuat folder .gitsnap di homedir (atau bisa manual membuat folder sendiri di home anda)

Selfie!

Dengan menambahkan line tersebut di hooks post-commit, line tersebut akan dijalankan setiap kali melakukan commit dan push ke repo git project, dan menyimpan foto selfie di folder .gitsnap, nama file foto yang diambil dengan fortmat TAN-GG-AL_commitid.jpg.

Untuk menyimpan selfie berdasarkan project, buat folder .gitsnap di masing-masing folder project yang sedang ada kerjakan.

Bonus

Kita bisa membuat video dari file foto selfie tersebut, kalau sudah banyak tentunya dengan perintah berikut

$ tlassemble ~/.gitsnap commit_timelapse.mov -fps 30 -codec h264 -quality high

Dengan ini akan tercipta file .mov yang bisa dimainkan atau di-share ke media sosial.

!TODO: insert recording video, colek @marchell