Unfortunately PHP's PDO constructor doesn't take a database connection url (in a format that Heroku makes available as a config var) as an argument. It has its own, rather odd syntax. However, it's easy enough to extract url parts with the `parse_url`...

You might have to append the path of the Postgres.app bin directory to your path in order to install the Python driver for Posgres. export PATH=$PATH:/Applications/Postgres.app/Contents/MacOS/bin To find the location of the application try this ...

To open files with a single click from the file browser inside of TextMate 2 run this command from the terminal defaults write com.macromates.TextMate.preview fileBrowserSingleClickToOpen -bool true And to turn it off defaults write com.macro...

There is annoying line wrap issue present after installing iPython on OS X Mavericks for the first time. The issue has to do with readline being missing. To fix the problem uninstall iPython, install readline and then install iPython. pip uninstall ip...

In your project's root directory add a .ruby-version file and add the ruby version to the file ruby-2.0.0-p247 Next source RVM in the .powrc file, also in your project's root directory. source "$rvm_path/scripts/rvm" rvm use `cat .ruby-versio...

I had an old version of rvm installed and wanted to upgrade. So old in fact that the resource for upgrading no longer existed. rvm update just returned a 301, redirect. Luckily, the following worked # checks out from repo rvm update --head # will re...

I love the Rails reload! function when in the console. I need it in Irb. To get it back this is what I did. If you don't already have an .irbrc file in your home directory, just create it. vim ~/.irbrc or textmate if you prefer mate ~/.irbrc Add this...

Using the system clipboard with tmux on OS X is broken. I really like tmux but having copy and paste is kind of important for me. Here is my attempt to get it back with a simple bash script until I find something better. The approach is to take a named pi...

What is RVM and why should you use it? RVM is a Ruby interpreter, version management tool. In short, it enables you to switch between different versions and releases of Ruby (for instance, version 1.8.6, 1.8.7, jruby 1.9.2, ruby enterprise edition) on the...

I followed the instructions from here http://arvinderkang.com/2009/09/01/installing-scala-on-snow-leopard/ but I used version 2.7.6 (rather than .5) I installed scala under /usr/local/scala so I had to include it to my path. Type vim .bash_profile expor...

If you are trying to install Sphinx on Mac OS X, it will most likely fail. The current version of MySQL bundled with Mac OS X is not supported and therefore, it will spit out the error message because it can't find the correct libraries. ld: library no...

You'll need a mail transport agent (MTA). I installed and used postfix using Mac Ports. sudo port install postfix You'll need to start postfix, to send mail from your Rails application. You can set it as a startup item and it will start on boot. However...

Here are a list of commands to get up and running with Apache2 with Phussion Passenger for Rails, PHP5, MySQL5, Ruby on Rails with Gems, and the source control software Git. I think that this is a pretty ideal environment for a development box and even pr...