switch gopath in fly (bash script)

gistfile1.sh

#!/bin/bash

CURRENT="$PWD"
while [ `basename $CURRENT` != "src" -a "$CURRENT" != "/" -a -n "$CURRENT" ]; do
    CURRENT=`dirname "$CURRENT"`
#echo "'$CURRENT'"
done

if [ `basename "$CURRENT"` == "src" ]; then
    export GOPATH=`dirname "$CURRENT"`
fi

if [ "$GOROOT" == "" ]; then
    export GOROOT="$HOME/bin/go-1.3.3"
fi

"$GOROOT/bin/go" "$@"