So, before you go very far with the RubyMotion, you will probably run into the need for Cocoapods and motion-cocoapods. I know that was the fact for me, when I stumbled across a link to https://github.com/foeken/CarenMotion, and wanted to see how it worked.
As a Ruby developer with a lot of different projects on my plate, it was perhaps inevitable that I would be slightly perplexed at this point. RubyMotion is self-contained, with it’s own Ruby implementation. But motion-cocoapods and cocoapods itself are gems to install. So, under which Ruby (I have 6 different Ruby/versions installed via rvm) should these be installed?
Thinking I was being logical, I started with MacRuby.
$ rvm use macruby Using /Users/lori/.rvm/gems/macruby-0.10
lori@wndx ~ $ gem list
** LOCAL GEMS **
lori@wndx ~ $ gem install cocoapods
Building native extensions. This could take a while…
ERROR: Error installing cocoapods:
ERROR: Failed to build gem native extension.
So much for that bright idea. Thinking that total n00bs wouldn’t even have rvm installed, I figured I’d go for the next easiest ruby, the System ruby, because I don’t use it for anything at all.
$ rvm use system Now using system ruby.
lori@wndx ~ $ sudo gem install cocoapods Password: Fetching: xcodeproj-0.1.0.gem (100%) Building native extensions. This could take a while… Fetching: cocoapods-0.5.1.gem (100%) [!] If this is your first time install of CocoaPods, or if you are upgrading, first run: $ pod setup Successfully installed xcodeproj-0.1.0 Successfully installed cocoapods-0.5.1 2 gems installed
$ pod setup
Cloning spec repo
master' from git://github.com/CocoaPods/Specs.git’
$ sudo gem install motion-cocoapods
Fetching: motion-cocoapods-1.0.1.gem (100%)
Successfully installed motion-cocoapods-1.0.1
1 gem installed
Yay. All nice and installed. And, testing by running rake on the CarenMotion app, I confirm it works just fine.
Now, on to a test project of my own. I’ll be re-implementing the sample project from the iOS Dev School class I took this weekend. This is a decidedly non-trivial example, so I’m really looking forward to it!