install rails on soda lab computers running ubuntu 12.

soda-rails-setup.sh

#!/bin/bash
# to install rails and node on ubuntu in Soda Hall (UC Berkeley) without root access
# constraints: no root access. ~1536 MB limit.

# TODO: handle all cs169 dependencies
# https://github.com/saasbook/courseware/blob/5e6cd1f533cc86f8caa0ad0ed0a9fb84baf2a662/vm-setup/configure-image-0.10.2.sh

### RVM INSTALLATION ###
# https://rvm.io/rvm/install # single user installation
echo "Installing rvm ..."
cd ~/
\curl -L https://get.rvm.io | bash -s -- --ignore-dotfiles
echo "source $HOME/.rvm/scripts/rvm" >> ~/.bash_profile

# RVM POST-INSTALLATION MESSAGE
# * To start using RVM you need to run `source /home/cc/cs169/fa13/class/cs169-hp/.rvm/scripts/rvm`
#    in all your open shell windows, in rare cases you need to reopen all shell windows.

# In case of problems:
#      run and read: rvm notes
#         read docs: http://rvm.io/
#        talk to us: http://webchat.freenode.net/?channels=rvm (http://freenode.net/faq.shtml#plusr)
#   read cheatsheet: http://cheat.errtheblog.com/s/rvm
#  watch screencast: http://screencasts.org/episodes/how-to-use-rvm
# open a bug report: https://github.com/wayneeseguin/rvm/issues

### RUBY INSTALLATION ###
# http://stackoverflow.com/a/18285986/1123985
# https://www.digitalocean.com/community/articles/how-to-install-ruby-on-rails-on-ubuntu-12-04-lts-precise-pangolin-with-rvm
# rvm list remote | grep 1.9.3 | wc -l  #TODO: check if ruby-1.9.3 exists
echo "Installing ruby 1.9.3..."
rvm mount -r 1.9.3

### RUBYGEMS INSTALLATION ###
rvm rubygems current

### CREATE RAILS3.2.13 GEMSET ###
echo "Installing Rails 3.2.13..."
rvm gemset create ruby3.2.13 && rvm 1.9.3@rails3.2.13 && gem install -v rails3.2.13


### SQLLITE3 INSTALLATION ###
gem install sqlite3-ruby

### NODEJS INSTALLATION ###
# http://dstvns.com/setting-up-nodejs-on-webfaction-revised/
# https://github.com/creationix/nvm # TODO: try using nvm to install nodejs
echo "Installing nodejs 0.10.18..."
cd ~/ && curl http://nodejs.org/dist/v0.10.18/node-v0.10.18.tar.gz | tarxz
cd node-v0.10.18 && ./configure --prefix=$HOME/node0.10.18 && make && make install

### PUT EXECUTABLES IN STARTUP SCRIPT ###

echo 'export PATH=$HOME/node0.10.18/bin:$PATH' >> $HOME/.bash_profile
echo 'source ~/.rvm/scripts/rvm' >> $HOME/.bash_profile