#!/bin/bash
#
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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#  http://www.apache.org/licenses/LICENSE-2.0
#
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# executes the command supplied as an argument in a tmp directory rsynched against the current directory
# the tmp is a hash of `pwd` so the target will be the same on multiple runs
# esp useful when running something like `rsd mvn clean install` 
# but you don't want your IDE or other changes to interfere

ORIG=`pwd`
DIR=`basename $(pwd -P)`-`pwd | md5sum | awk '{print $1}'`
mkdir -p /tmp/$DIR/
pushd /tmp/$DIR/ > /dev/null
echo executing \'$@\' in `pwd` as a copy of $ORIG 
rsync -a --delete $ORIG/ .
"$@"
# not necessary as command invoked in subshell
# popd > /dev/null