defulmere

#!/bin/bash

mkdir -p ~/opt/{tmp,src}
export TMPDIR=~/opt/tmp
export CPPFLAGS="-I$HOME/opt/include $CPPFLAGS"
export LDFLAGS="-L$HOME/opt/lib $LDFLAGS"
export LD_LIBRARY_PATH=$HOME/opt/lib
export PATH=$HOME/opt/bin:$PATH

echo 'export PATH=$HOME/opt/bin:$PATH' >> ~/.bashrc

defulmere

Bootstrap a rails project without rails installed

Set GEM_HOME to an ephemeral directory then use gem exec to run rails:

export GEM_HOME=$( mktemp -d )
gem exec rails new myproject
cd myproject
bundle config set deployment true
bundle install