cdgem_mategem.sh

GEMPATHS=`gem environment | awk '/GEM PATHS/, /GEM [^P]/ {print $2}' | grep -v GEM`
function gemdir {
  echo $GEMPATHS | xargs -n 1 -I %s find %s/gems -type d -depth 1 | grep $1 | sort | tail -1
}
# really awesome function, use: cdgem <gem name>, cd's into your gems
# directory and opens gem that best matches the gem name provided
function cdgem {
  GEMDIR=`gemdir $1`
  if [ $GEMDIR ] && [ -d $GEMDIR ]; then
    cd $GEMDIR
  else
    echo "No gem found for $1 in $GEMPATHS"
    return 1
  fi
}
function mategem {
  (cdgem $1 && mate .)
}