#!/bin/bash
# Runs an isolated Firefox session in its own profile. - Matt 2007-12-02

#set -x

MDD=~/.mozilla/firefox

function write_profiles_ini {
	(
	echo '[General]'
	echo 'StartWithLastProfile=1'
	echo
	i=0
	for dir in *.*; do
		if [ -d "$dir" ]; then
			name="${dir#*.}"
			echo "[Profile$i]"
			echo "Name=$name"
			echo "IsRelative=1"
			echo "Path=$dir"
			echo
			let i=$i+1
		fi
	done
	) >profiles.ini.tmp
	mv profiles.ini.tmp profiles.ini
}

function new_profile {
	name="isolated-$$-$(date +%s)"
	cp2 00000000.master/ "00000000.$name/"
	write_profiles_ini
	echo "$name"
}

function liquidate_profile {
	dir="00000000.$name"
	cdir="changes_$name"
	rsync -rl --compare-dest=../00000000.master --checksum "$dir/" "$cdir/"
	rm -rf "$dir"
	write_profiles_ini
	find "$cdir" -type d -empty -delete
	if [ -e "$cdir" ]; then
		find_out="$(find "$cdir" -type f -print)"
		zenity --info --text="This session changed the following files; you may wish to review the changes for application to the master profile:

$find_out"
	fi
}

function run_isolated {
	ff="$1"
	shift
	name="$(cd "$MDD"; new_profile)"
	zenity --info --text="Beginning isolated Firefox session $name"
	"$ff" -no-remote -P "$name" "$@"
	(cd "$MDD"; liquidate_profile "$name")
}

run_isolated /usr/bin/firefox "$@"