Lev Lazinskiy

Working with chruby and nvm on Ubuntu

I am setting up a new Ubuntu 16.04 dev environment. I wanted to take some notes on my progress. I am trying out chruby after it being highly recommended by the ruby gurus Eric and Zach. A natural place to start would be to get this Jekyll blog running locally. I ran into a few stumbling blocks.

Installing chruby and a Ruby version

1. Download and Install chruby

   wget -O chruby-0.3.9.tar.gz https://github.com/postmodern/chruby/archive/v0.3.9.tar.gz
   tar xf chruby-0.3.9.tar.gz
   cd chruby-0.3.9/
   sudo make install
   

2. Add chruby to your .bashrc

   source /usr/local/share/chruby/chruby.sh
   source /usr/local/share/chruby/auto.sh
   

3. Install dependencies

   sudo apt-get install -y build-essential bison zlib1g-dev \
   libyaml-dev libssl-dev libgdbm-dev libreadline-dev \
   libncurses5-dev libffi-dev
   

4. Install Ruby 2.3.1 This will work for any version of Ruby, but 2.3.1 is the one that I needed.

   wget https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.1.tar.bz2
   tar xf ruby-2.3.1.tar.bz2
   cd ruby-2.3.1/
   ./configure --prefix=/opt/rubies/ruby-2.3.1
   make
   sudo make install
   

5. Install Gems for Jekyll Now that we have Ruby installed, we can install bundler and install all of our Gems.

   chruby 2.3.1
   gem install bundle
   bundle install
   

/home/levlaz/.gem/ruby/2.3.1/gems/bundler-1.12.5/lib/bundler/runtime.rb:89:in
`rescue in block (2 levels) in require': There was an error while trying to load
the gem 'jekyll-coffeescript'. (Bundler::GemRequireError)
Gem Load Error is: Could not find a JavaScript runtime. See
https://github.com/rails/execjs for a list of available runtimes.

Installing nvm

1. Run the installer script

   curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.31.7/install.sh | bash
   

   This will install nvm and add the appropriate lines to your ~/.bashrc file in order to load properly.
2. Install the latest version of node

   nvm install node
   

3. Source NVM To get nvm working in the same terminal, you can run source ~/.bashrc, alternatively you can open a new terminal and nvm will automatically be sourced since the installer script added the appropriate bits for us.