How To Install CoffeeScript On Mac OS X

CoffeeScript Rails Ruby Mac | comments

If you are a Rails developer, you should know that Rails 3.1 beta has been released today. I am trying out the beta version so I don't have to stress about migrating or upgrading later.

Install CofeeScript Using Homebrew

Install homebrew if you haven't yet. It's a lot better than fink. Macports didn't work well for me too. I use homebrew.

              
                brew install node
                
                Caveats:
                
                Please add /usr/local/lib/node to your NODE_PATH environment variable to have node libraries picked up.
              
                curl http://npmjs.org/install.sh | sh
              
                npm install -g coffee-script
                
              
              

This is the output after install node.

              ==> Downloading http://nodejs.org/dist/node-v0.4.7.tar.gz
              ######################################################################## 100.0%
              ==> ./configure --prefix=/usr/local/Cellar/node/0.4.7
              ==> make install
              ==> Caveats
              Please add /usr/local/lib/node to your NODE_PATH environment variable to have node libraries picked up.
              ==> Summary
              /usr/local/Cellar/node/0.4.7: 72 files, 7.5M, built in 3.1 minutes
              

Check if everything is working:

                node -v
                npm -v
                coffee -v
              

Test CoffeeScript

Create a file called test.coffee

              # Assignment:
              number   = 42
              opposite = true
              
              # Conditions:
              number = -42 if opposite
              
              # Functions:
              square = (x) -> x * x
              
              # Arrays:
              list = [1, 2, 3, 4, 5]
              
              # Objects:
              math =
                root:   Math.sqrt
                square: square
                cube:   (x) -> x * square x
              
              # Splats:
              race = (winner, runners...) ->
                print winner, runners
              
              # Existence:
              alert "I knew it!" if elvis?
              
              # Array comprehensions:
              cubes = (math.cube num for num in list)
              
              

Then run "coffee -c test.coffee". If you see a test.js file on the same directory then it's all good.

CoffeeScript for Textmate

              
                cd ~/Library/Application\ Support/TextMate/Bundles
                git clone git://github.com/jashkenas/coffee-script-tmbundle CoffeeScript.tmbundle
              
              

Debian or Ubuntu

If you use Debian or Ubuntu for production, you will find this link useful.

Off-topic Update

I am working on a small project just so I'd get to learn Rails 3.1 this week. This is called "sleep." It's so precious because I hardly have any sleep lately because of so much work. But that's something I should thank for still.