tor-parallel-relay-conn/contrib/osx/TorPreFlight

#!/bin/sh
# TorPreFlight is invoked before the install begins

# Figure out where Tor is installed
if [ -f /Library/StartupItems/Tor/Tor.loc ]; then
	TORPATH=`cat /Library/StartupItems/Tor/Tor.loc`
else if [ -f /System/Library/LaunchDaemons/net.freehaven.tor ]; then
	TORPATH=/`grep -A1 "<key>Program</key>" /System/Library/LaunchDaemons/net.freehaven.tor.plist | grep string | cut -d"/" -f2,3`
else
	TORPATH="/Library/Tor/"
fi

# Backup all of Tor, just in case
if [ -d $TORPATH ]; then
	tar zcf ~/`date "+%Y-%m-%d"`-Tor.backup.tar.gz $TORPATH
fi

# Remove Tor and everything to do with it
if [ -f $TORPATH/uninstall_tor_bundle.sh ]; then
	$TORPATH/uninstall_tor_bundle.sh
else
	$PACKAGE_PATH/Contents/Resources/uninstall_tor_bundle.sh
fi

# This is complete, we have a fresh system on which to install Tor