goto_repo.sh

#!/bin/bash
#
# this script should not be run directly,
# instead you need to source it from your .bashrc,
# by adding this line:
#   . PATH_TO_SCRIPT/goto_repo.sh

function repo() {
  reponame=$1
  basedir="$HOME/Sites/$reponame"

  if [ -d "$basedir/repo" ]; then
    cd "$basedir/repo"
  elif [ -d "$basedir/trunk" ]; then
    cd "$basedir/trunk"
  elif [ -d "$basedir" ]; then
    cd "$basedir"
  fi
}