How to read one non-blocking key press in Ruby
During the development of a simple command line game in Ruby, I wanted to check if the player has pressed a given key in a non-blocking and buffered way. That is: If no key was…
Rails cluster with Ruby load balancer using Docker
Lately I discovered Docker. I made a quick presentation on it for the rivierarb meetup of february 2014 (slides available). As an example of Docker’s usage, I decided to make something cool: a Rails cluster,…
Install Ruby 1.9.3 on a shared hosting non root
I’ve got through a bit of a hurdle to get Ruby 1.9.3 installed on my shared host. My host is PlanetHoster, but this walkthrough should work with any host giving you a decent development suite…
Monitor your systems using Monit on shared hosts non-root – Example with Rails3/Capistrano
Do you know Monit? You definitely should. This is a high-quality and mature Open Source project, very well documented, that can monitor all your system resources (global and process-based). It is lightweight, efficient, can take…
Deploy Rails 3 Unicorn applications using Capistrano on a shared web host non-root
In my struggle to have complete Rails3 environments setup in shared web hosts, the deployment step was missing. Lately I managed to deploy Rails3 Unicorn applications using Capistrano on a shared web host, as a…
Installing Rails 3 nginx unicorn on a shared web host non-root
Lately I tried to install a complete Rails 3 nginx unicorn web stack on a shared host without root privileges, in my user home directory. Ruby and Rails3 setup nginx setup Unicorn setup Unicorn setup…
How to install custom ROM on Asus TF300TG Transformer Pad
Lately, I received a TF300TG Asus Transformer Pad, shipping with a stock Asus JellyBean (Android 4.1.1) OS. It is awesome, reactive, playful, efficient, has 3G connectivity with a SIM card slot… but does not have…
rb_iterate replaced by rb_block_call API between Ruby 1.8 and 1.9
You may have noticed that some Ruby libraries using C extensions were suddenly having core dumps when compiled using Ruby 1.9, whereas compiling with Ruby 1.8 got no problems. A good culprit might be the…
Migrating big applications from Rails 2 to Rails 3
Today will have a rather long and technical post, focused on all the steps needed for migrating big applications from Rails 2 to Rails 3. First question: why bother? Rails 2 is great, but Rails…
The Ruby C API – Basics
In my 2 previous posts, we saw how to write C extensions, and how to package them. Now time has come to see a little bit of the Ruby C API. This post will deal…