To better understand Turing’s machine and its contributions
to mathematics and computer science, we will build a simulator in Ruby. This
simulator will take a description of the machine’s configuration, create a
model of the machine, and run through its steps. We will be able to observe the
action of the head and changes to the tape at each step. Hopefully this will
serve to illuminate some aspects of Turing’s machine that might otherwise be
less accessible.
A couple months ago, I resigned my position at Hashrocket.
This was not an easy decision for me. Working with the rocketeers has been a
very fulfilling and edifying experience. The people at Hashrocket are
passionate about what they do and extremely competent. I was given challenging
and rewarding responsibilities. Hashrocket was a great job and I would
recommend it to anyone. Why, then, did I chose to leave?
On OS X? Develop web applications with Ruby? Want drag-and-drop and
point-and-click development server management? Then you need Passenger Pane.
We’ll walk you through the installation process and show you how to get a
simple Rack application up and running. Thanks to
Jason Noble for his help getting everything working.
An efficient workflow for developers in Agile teams that handles features and
bugs while keeping a clean and sane history.
At Hashrocket we use git both internally and in our
Agile mentoring and training. Git gives us the flexibility to design a version
control workflow that meets the needs of either a fully Agile team or a team
that is transitioning towards an Agile process.
As a follow up on writing incremental stories,
we’re going to take the first story and walk through a behavior driven
development process to implement it in a simple Rails application.
We will focus on making small, iterative changes and following a strict
test-first philosophy where we write granular unit tests and implement them
with just enough code to make them pass.
When the OG Consultingguys were
down at Hashrocket working on our latest 3-2-1, they
introduced us to a pair of bash scripts called hack and ship that they use
to streamline their everyday git workflow. They’re so useful that we adopted
them immediately and we’ve been using them religiously ever since. I estimate
that these little scripts save me about an hour a day and, what’s more, they
make it easy to follow the commit early, commit often mindset that’s so
useful to the agile process.
We had a great time at the Ruby Hoedown this weekend. The
Hashrocket crew was out in force (and there was much
debauchery in the Hashrocket RV). We got to meet or get better acquainted with
a lot of great rubyists and hear a lot of entertaining, informative talks.
Most software projects suffer from increasing complexity over their lifetime.
One of the most common ways that a project grows in complexity is known as
“Adding Epicycles”.