cheat sheets.

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Cheat Sheet:
RVM home page: http://rvm.beginrescueend.com Install RVM ------------ See http://rvm.beginrescueend.com/rvm/install/ bash < <( curl http://rvm.beginrescueend.com/releases/rvm-install-head ) Install rvm for all users -------------------------- Fairly complicated; make sure to read http://rvm.beginrescueend.com/deployment/system-wide/ Show all rubies and gemsets --------------------------- rvm list gemsets Upgrade to the latest version of rvm from github ------------------------------------------------- rvm update --head Ruby on Rails 3 Tutorial says to follow this with rvm reload rvm install 1.8.7 rvm install 1.9.2 and, if you need a patchlevel, do something like rvm install 1.8.7-p174 Install a given version of ruby -------------------------------- rvm install 1.9.2 If this fails with compiler errors, you may need to install some packages. rvm package install openssl rvm package install readline rvm package install iconv rvm install 1.9.2 --with-openssl-dir=$HOME/.rvm/usr \ --with-readline-dir=$HOME/.rvm/usr \ --with-iconv-dir=$HOME/.rvm/usr On Mac, you may need to install some libraries via MacPorts. sudo port install ncurses sudo port install libyaml sudo port install zlib rvm install 1.9.2 --with-libyaml-dir=/opt/local \ --with-openssl-dir=$HOME/.rvm/usr \ --with-readline-dir=$HOME/.rvm/usr \ --with-iconv-dir=$HOME/.rvm/usr On Linux sudo apt-get install git-core git curl file \ gcc make automake autoconf automake1.9 \ binutils g++ g++-multilib checkinstall sudo apt-get install libssl-dev libxslt-dev libxml2-dev sudo apt-get install libcurl4-openssl-dev libmysql++-dev sudo apt-get install libpcre3 libpcre3-dev More at http://rvm.beginrescueend.com/rubies/installing/ Open a new shell and rvm! ------------------------- rvm use 1.9.1 >> Switching to ruby 1.9.1 ... ruby -v >> ruby 1.9.1p243 (2009-07-16 revision 24175) [x86_64-linux] which ruby >> /home/wayne/.rvm/ruby-1.9.1-p243/bin/ruby Make 1.9.2 default for all new shells -------------------------------------- rvm --default 1.9.2 Reverting to system default ---------------------------- rvm system ruby -v >> ruby 1.8.7 (2008-08-11 patchlevel 72) [universal-darwin10.0] which ruby >> /usr/bin/ruby Installing gems in multiple ruby versions ------------------------------------------ rvm 1.8.6,1.9.1 gem install rspec json --no-rdoc --no-ri Starting a new project? Create a Gemset and rvmrc at the same time: ------------------------------------------------------------------- rvm --create --rvmrc ree@project_name Working with gemsets -------------------- rvm 1.8.7 # use the ruby to manage gemsets for rvm gemset create project_name # create a gemset rvm gemset use project_name # use a gemset in this ruby rvm gemset list # list gemsets in this ruby rvm gemset delete project_name # delete a gemset rvm 1.9.1@other_project_name # use another ruby and gemset The global gemset ----------------- With every ruby, rvm creates the global gemset. Gems installed into this gemset are available to all gemsets in the ruby. rvm 1.8.7 rvm gemset create project_name gem list # no gems :( rvm gemset use global gem install rake rvm gemset use project_name gem list # rake :) Install a gem directly into the global gemset: rvm 1.8.7@global gem install shoulda Install cheat in the global gemset when you install a new ruby: echo "cheat" >> ~/.rvm/gemsets/global.gems .rvmrc ------ rvm can automatically use a ruby and gemset when you cd to a project directory. echo "rvm 1.8.7@project_name" > ~/projects/project_name/.rvmrc Lots more help --------------- rvm help http://rvm.beginrescueend.com/

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