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How to Install RVM and Rails 3 on Snow Leopard
This is a continuation of my post on installing Ruby version manager or multiple versions of Ruby for Unix. This time it’s about OS X 10.6.1 or the Snow Leopard.
Snow Leopard includes Ruby and Rails by default if you install XCode. The version is 1.8.7 and 2.2.2 for each, respectively. This would not suffice for most developers because we need to start porting to Ruby 1.9 and start experimenting with Rails 3. The goal is to just keep moving forward and use the best version that exists.
Update: Since I am getting a lot of feedback regarding this post. I noticed it’s not newbie-friendly. Sorry. Here are the missing steps.
My Apache2 is installed in /usr/local and PHP5 is compiled by source. I do not use what Leopard has by default because it wasn’t working well for me.
In case it happens for you and you want to install PHP5 and more modules. See the following guides:
I also installed Fink
So at the very least, you can skip reading what’s written on the links above if your Apache2 installed is OK.
Install WGET (but you can also use curl) or just download via web browser.
tar -xzvf wget-latest.tar.gz
cd wget-*
./configure
make
sudo make install
Install Readline
wget ftp://ftp.cwru.edu/pub/bash/readline-6.1.tar.gz
tar -xvzf readline-6.1.tar.gz
cd readline-6.1
./configure
make
sudo make install
Install Most
wget ftp://space.mit.edu/pub/davis/most/most-5.0.0.tar.gz
tar xvzf most-5.0.0.tar.gz
cd most-5.0.0
./configure
make
sudo make install
RVM installation for OS X.
Please read the guides on the website of Wayne. Click here to go there.
Note: The path “/usr/local” is important. This makes a bit of a difference between installing on Ubuntu/Debian and OS X.
Update: I recommend you install RVM this way
bash < <( curl http://rvm.beginrescueend.com/releases/rvm-install-head )
rvm install 1.8.7 -C --enable-shared,--with-readline-dir=/usr/local
rvm install 1.9.2 -C --enable-shared,--with-readline-dir=/usr/local
rvm 1.8.7 --default
But this will also work:
rvm install 1.8.7
rvm install 1.9.2
rvm 1.9.2 --default
Install Prerequisites
Git
Hivelogic tutorials are good. Check out how to install Git on Leopard.
SQLite 3
wget http://www.sqlite.org/sqlite-amalgamation-3070400.zip
tar xvzf sqlite-amalgamation-3070400.tar.gz
cd sqlite-3.6.22/
./configure
make
sudo make install
MySQL
Download from MYSQL website
Select the version compatible with your Mac.
sudo /Library/StartupItems/MySQLCOM/MySQLCOM start
Install Rails 3.0.3 for Ruby 1.9.2
rvm use 1.9.2
#install bundler so you could just specify dependencies on Gem and do bundle install
gem install bundler
gem install rails
And all this didn’t take time for me even while writing this post. I now have a successful install for Rails 3. Same result with Ubuntu Karmic Koala.
rails new yourawesomeapp -d mysql
I suggest replacing the .gitignore file immediately with the .gitignore you’ve been using or add those necessary entries.
An example of a complete .gitignore file is here.
But often this is just what you need:
*~
.#*
.DS_Store
backups/* #[I keep some files relevant to the application like the database dump on the same folder]
log/* #[we don't need the the log files submitted
Keep adding in other entries later.
Notes:
Some guides out there are wrong. Do not use “sudo” when you are using RVM. Your gems are on your user’s home directory.
If things are not working and you have followed installation guides. You’re missing an important part which is called the .bash_profile. Please review your .bash_profile first. I can’t explain every line but every line is important.
This is what I have right now:
Katherine-Pes-iMac:~ katz$ cat .bash_profile
export PATH=/usr/local/bin/:/usr/local/sbin/:/opt/local/bin/:/opt/local/sbin/
:/Users/katz/.rvm/rubies/ruby-1.8.7-p248/bin:
/Users/katz/.rvm/gems/ruby-1.8.7-p248/bin:
/Users/katz/.rvm/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
export PATH="/usr/local/bin:/usr/local/sbin:
/usr/local/mysql/bin:$PATH"
export APACHE2="/usr/local/apache2/bin"
export PATH="${APACHE2}:${PATH}"
export EDITOR='mate -w'
export CLICOLOR=1
export LSCOLORS=ExFxCxDxBxegedabagacad
export PAGER=most
if [[ -s /Users/katz/.rvm/scripts/rvm ]] ; then source /Users/katz/.rvm/scripts/rvm ; fi
alias start_mysql="/Library/StartupItems/MySQLCOM/MySQLCOM start"
alias stop_mysql="/Library/StartupItems/MySQLCOM/MySQLCOM stop"
. /sw/bin/init.sh
function gemdir {
if [[ -z "$1" ]] ; then
echo "gemdir expects a parameter, which should be a valid rvm Ruby selector"
else
rvm "$1"
cd `rvm gemdir`
pwd
fi
}
As you can see, there’s RVM code. If you follow RVM installation properly you should have something like that. Aliases are shortcuts for starting/stopping MYSQL but mine is automatically loaded on startup.
Have fun :)
Last Updated: January 20, 2011