I’m currently playing around with Rails Apps in virtual environments. To get started, i threw together a little script.
Update: Available as Gist now. Found some stupid things. Will update as needed.
#!/bin/bash set -e # exit on error ### README # * built for Ubuntu (Lucid Lynx) # * uses GIT via SSH because of !@#$% proxy at work # * installs your desired ruby version (1.9.2-p290 per default) using rbenv # ** including openssl (needed by bundler) # ** including sqlite (probably needed for rails apps) # # Before you start: # * put ssh-keys in place # * $ ssh git@github.com # * If you're behind a proxy, be sure to set $http_proxy etc! # # After the Script has run: # * reload your .profile ### /README ### CONFIG # Ruby Version to install RBVER='1.9.2-p290' ### /CONFIG PROFILE=~/.profile # update system, just in case sudo aptitude update #sudo aptitude full-upgrade # install some dependancies sudo aptitude install -y \ build-essential zlib1g-dev \ sqlite3 libsqlite3-dev \ libssl-dev openssl \ libreadline-dev \ curl wget git-core # build-essential zlib1g-dev required to install ruby # sqlite3 libsqlite3-dev required for sqlite gem # libssl-dev openssl required for openssl extension # libreadline-dev required for IRB # curl wget git-core can i haz tools? cd ### Install rbenv test -d ~/.rbenv || git clone git@github.com:sstephenson/rbenv.git ~/.rbenv # modify $PATH and autoload rbenv grep 'rbenv/bin' $PROFILE &>/dev/null || echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> $PROFILE grep 'rbenv init' $PROFILE &>/dev/null || echo 'eval "$(rbenv init -)"' >> $PROFILE # reload shell source $PROFILE ### Install ruby-build test -d ~/ruby-build || git clone git@github.com:sstephenson/ruby-build.git ~/ruby-build cd ~/ruby-build && sudo ./install.sh ### Install Ruby rbenv install $RBVER --with-openssl-dir=/usr/local # reload binaries rbenv rehash # set as default version rbenv global $RBVER ruby -v # set some defaults test -s ~/.gemrc || echo 'gem: --no-rdoc --no-ri' >> ~/.gemrc echo 'Here is your ~/.gemrc:' cat ~/.gemrc echo '=== end of .gemrc ===' # install bundler gem install bundler rbenv rehash grep 'BUNDLE_WITHOUT' $PROFILE &>/dev/null || echo 'export BUNDLE_WITHOUT=production' >> $PROFILE
), customized the page a bit and has already written 
”
) sollte sie fuer die meisten Linux-Distributionen gueltig sein.