#!/bin/bash
# version: 1.6
# (c) Kristian Peters 2012
# released under the terms of GPL
#
# changes: 1.6 - added remove_acls
#          1.5 - updates for extended attributes for Mac OS X 10.7
#          1.4 - removing hidden extended attributes on hfs+ volumes
#          1.3 - files named "._[*]" are removed if "[*]" exists in the
#                same directory
#          1.2 - added .Trashes and ._.DS_Store from OSX
#          1.1 - added .trash-<username>
#          1.0 - initial release
#
# contact: "Kristian Peters" <kristian.peters@korseby.net>

IFS="
"
USERNAME="$(whoami)"



function remove_ds_store() {
	# remove .DS_Store files (generated by Mac OSX's Finder)
	for i in $(find . -name ".DS_Store" -print); do
		echo "Moving \"${i}\" to Trash..."
		mv -f "${i}" "${HOME}/.Trash/"
	done
}



function remove_trashes() {
	# remove .Trashes files (generated by Mac OSX's Finder)
	for i in $(find . -name ".Trashes" -print); do
		echo "Moving \"${i}\" to Trash..."
		mv -f "${i}" "${HOME}/.Trash/"
	done

	# remove .Trash-<username> directories (generated by Nautilus from Gnome)
	for i in $(find . -name ".Trash-${USERNAME}" -print); do
		echo "Moving contents of \"${i}\" to Tash..."
		mv -f "${i}/*" "${HOME}/.Trash/"
		rmdir "${i}"
	done
}



function remove_acls() {
	# remove acl via chmod
	alias ls='ls -1l'
	for i in $(find . -print); do
		list="$(ls -1l "$i" | cut -c 11)"
		if [ "$list" == "+" ] ; then
			echo "Removing ACL from \"$i\"..."
			chmod -N "$i"
		fi
	done
}



function remove_extended_attributes_leos() {
	# remove ._* files (generated by Mac OSX's Finder) under the condition
	# that a file named * (without the ._ be the first letters) already exists
	for i in $(find . -name "._*" -print); do
		if [ -f "$(echo ${i} | sed -e "s/\/\._/\//")" ] ; then
			echo "Moving \"${i}\" to Trash..."
			mv -f "${i}" "${HOME}/.Trash/"
		fi
	done

	# remove hidden extended attributes via xattr
	alias ls='ls -1l'
	for i in $(find . -print); do
		list="$(ls -1l "$i" | cut -c 11)"
		if [ "$list" == "@" ] ; then
			attr="$(xattr -l "$i" | grep :$ | grep -v \  | sed -e "s/:$//")"
			if [ "$attr" != "" ] ; then
				for j in $attr; do
					echo "Removing \"$j\" from \"$i\"..."
					xattr -d "$j" "$i"
				done
			fi
		fi
	done
}



function remove_extended_attributes_lion() {
	# remove ._* files (generated by Mac OSX's Finder) under the condition
	# that a file named * (without the ._ be the first letters) already exists
	for i in $(find . -name "._*" -print); do
		if [ -f "$(echo ${i} | sed -e "s/\/\._/\//")" ] ; then
			echo "Moving \"${i}\" to Trash..."
			mv -f "${i}" "${HOME}/.Trash/"
		fi
	done

	# remove hidden extended attributes via xattr
	alias ls='ls -1l'
	for i in $(find . -print); do
		list="$(ls -1l "$i" | cut -c 11)"
		if [ "$list" == "@" ] ; then
			attr="$(xattr -l "$i" | sed -e "s/:.*//")"
			if [ "$attr" != "" ] ; then
				for j in $attr; do
					echo "Removing \"$j\" from \"$i\"..."
					xattr -d "$j" "$i"
				done
			fi
		fi
	done
}



# remove_ds_store
remove_ds_store

# remove_trashes
remove_trashes

# remove_acls
remove_acls

# remove_extended_attributes
if [ -x "/usr/bin/sw_vers" ] ; then
	OS_VERSION="$(/usr/bin/sw_vers | grep ProductVersion | sed -e "s/.*10\.//" | sed -e "s/\..*//")"
	if [ "$OS_VERSION" == "7" ] ; then
		remove_extended_attributes_lion
	elif [ "$OS_VERSION" == "6" ] || [ "$OS_VERSION" == "5" ] ; then
		remove_extended_attributes_leos
	else
		echo "Warning: No Mac OS X Version detected."
		remove_extended_attributes_lion
	fi
else
	echo "Warning: No Mac OS X detected."
	remove_extended_attributes_lion
fi