Rails: Installing RoR using RVM
There are many ways to install Ruby on Rails but the current trend is to use a package manager to keep things in order. The best two options for package management are
rbenv. This entry will use RVM.
Step 1 - Install Homebrew
Homebrew is a package manager that simplifies downloading, compiling and installing binary packages.
Step 2 - Install GNU Privacy Guard
gpg is an encryption program used to check the security of the RVM download. Let's use Homebrew to install the package.
brew install gpg
This is a pre-step to intalling RVM
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
Step 3 - Quick shortcut
RVM installs documentation for every gem that Rails depends on, it helps to first disable documentation.
echo "gem: --no-document" >> ~/.gemrc
It helps to create a little progress bar for yourself so that you can determine how long it will take to download.
echo progress-bar >> ~/.curlrc
Step 4 - Install RVM and Ruby and Rails
Let's install both Ruby Version Manager and Ruby on rails using a single line of code.
\curl -sSL https://get.rvm.io | bash -s stable --autolibs=homebrew --rails
RVM includes an
autolibs[^1] option to identify and install components needed for your operating system. In our case, we aim to enforce
homebrew to be our package manager instead of RVM's default
The reason for the
curl in order to avoid possible version conflicts.
Step 5 - Double check your work
If you have
rvm installed, this should say "rvm is a function"
rvm | head -n 1
Step 6 - Maintenance
Keep your rvm up-to-date.
rvm get stable --autolibs=enable --auto-dotfiles
rvm get stable --autolibs=homebrew
Removing RVM entirely
Implode removes all traces of RVM from your system (except for changes such as ~/.bash_profile). You may need to do this if you choose
rbenv to manage your ruby packages.