useful scripts

bashrc.sh

function pruneDocker () {
  for CMD in $@
  do
    echo "Pruning ${CMD}s..."
    IDS=$(docker $CMD ls --all --quiet 2> /dev/null || docker $CMD ls --quiet)
    [ -z "$IDS" ] && echo "None found." && continue
    echo "$IDS" | xargs -L1 docker $CMD rm --force
    docker $CMD prune --force
  done
}

function withOpts () {
  while :; do
    case "$1" in
    "")
      shift
      break
      ;;
    *)
      if echo "$1 $2" | grep -qE "^--[_/a-z]+ [-_/a-zA-Z0-9]+$"; then
        eval "${1#--}=$2"
        shift 2
      else
        echo "Unexpected option pair: ${1:-?} ${2:-?}" && exit 1
      fi
      ;;
    esac
  done
}