Bash shortcuts for routing Rails commands through the binstubs if they are present, or fallback to the other version-dependent methods

.rails_aliases

# RUBY / RUBY ON RAILS COMMANDS
alias bexec='bundle exec'
alias rails_mv="bexec rails -v | sed 's/Rails \([0-9]\).*/\1/g'"
# Alias the rake command to Spring binstubs or fallback to "bundle exec"
# http://goo.gl/HkhHAf, http://goo.gl/STtIvF
function brake {
  if [ -f bin/rake ]
  then
    bin/rake "$@"
  else
    if [ `rails_mv` -lt 3 ]; then 
      rake "$@"
    else
      bexec rake "$@"
    fi
  fi 
}
function brails {
  if [ -f bin/rake ]
  then
    bin/rails "$@"
  else
    bexec rails "$@"
  fi 
}
function cons {
  if [ `rails_mv` -lt 3 ]; then
    ./script/console "$@"
  else
    brails c "$@"
  fi
}
function dbcons {
  if [ `rails_mv` -lt 3 ]; then
    echo "Not supported in this version of Rails (`rails -v`)"
  else
    brails db "$@"
  fi
}
function gen {
  if [ `rails_mv` -lt 3 ]; then
    ./script/generate "$@"
  else
    brails g "$@"
  fi
}
function srv {
  if [ `rails_mv` -lt 3 ]; then
    ./script/server "$@"
  else
    brails s "$@"
  fi
}
function run {
  if [ `rails_mv` -lt 3 ]; then
    ./script/runner "$@"
  else
    brails r "$@"
  fi
}
alias sandbox='cons --sandbox'

I now prefer the bundler plugin for oh-my-zsh.