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Rails can generate a lot of things for you.

In my previous post I discussed how to use a Makefile to set version and build information at compile time.

Note: I’ve received feedback on this post and written an update, which you can read here It’s no secret I love the power and simplicity of Go.

Today I was programming and messed up my database schema in such a way that I just wanted to restore a recent backup and start over from there. dropdb app_development createdb app_development Unfortunately I ran into an error:

Ever since I started doing TDD I’ve used RSpec.

A bench power supply is one of the essential tools of any electronics hobbyist.Although you can buy a such a unit for less that € 50, it’s way more fun to build one yourself.

Developers are religious about two things: their editor and their shell.

Your Rails app has grown over time, multiple developers have worked on the code and you are about to make a small change in the code.

I have been working on an emulator for the MOS 6502 Microprocessor, written in Go.

I have written and talked before about GPG and the need for trust on the internet.

Cucumber and Aruba are awesome tools to write acceptance tests for your command line application.

The rails project I’m talking about is over three years old and has seen commits from 27 developers in that period.

My last post was 154 days ago.

Disclaimer: I could write books about online privacy, freedom of speech and how encryption fits into that picture.

I’ve blogged before about deploying Rails applications.

A few days ago I wrote about getting up early and getting stuff done (link).

Over the years I’ve often found myself behind my computer at two in the morning trying to finish a feature for a side-project and trying to keep my eyes open and focussed.

When people make a request or proposal I often see them present their request and arguments using the following structure: Make a request Give a plethora of arguments why that request is a good idea.

I’ve migrated ariejan.net from a custom Ruby on Rails application to a statically generated site with Nanoc.

Github pull requests are awesome, but you can’t use them all the time, mostly when working on code not hosted at github.

The whole internet collectively fell over Instagram earlier this week when they released their new Terms of Service.

Part of resolving a bug is finding where and when that bug was introduced into your code.

Ever since Apple decided to put Intel processors in their Macs there have been attempts by enthusiasts to run Mac OS X on commodity hardware – with mixed results.

As a professional developer I test my code.

I already wrote about how to apply your decorator to the current_user when you’re using Devise.

If you don’t know Go, you should really look into it.

Sometimes you have to move your git repository to another host.

I recently made a commit in a project that, mistakenly, included changes to db/schema.rb.

I’m always confused when using decimal in a Rails migration.

I’m a software engineer.

The situation is pretty straightforward.

Some times you find yourself in a place where your Mac is safely tucked away behind a firewall.

I recently learned a nice VimTrick™ when pairing with Arjan.

I get quite a lot of “oh we can SEO optimize your site for you” emails lately.

You have probably watched Star Trek.

Here’s a handy ruby snippet that might come in handy one day.

After doing a full re-install of my MacBook Pro a few weeks back to combat system slowness, I’m again struck with a slow system.

I just tried to play Diablo 3, but could not log on due to server maintenance.

This post is on piracy.

Passenger 3.2 will have quite some nice new features. 1 2 The features I’m looking forward to most is the ability to specify - per virtual server - which ruby to use.

I’ve become a big fan of decorators, especially Draper.

These are the slides of my Eindhoven.rb lightning talk.

Some people’ve asked me how I show rendering information on ariejan.net.

For Ariejan.net I use redis to cache pages and shards.

Would you believe me if I told you that opening a simple Ruby file on my 2011 MacBook Pro takes 11.34 seconds?

Edit: this is not a Gitlab specific issue.

I just tried writing some new code, but it was no success.

While working on a Gitlab installation I noticed that all repository file permissions were off.

Today I upgraded a production PostgreSQL 8.4 database to version 9.1.

We all know how to deploy our own Rails projects.