#!/bin/bash
# Author : Ismael Barros² <ismael@barros2.org>
# License : BSD http://en.wikipedia.org/wiki/BSD_license

EXCEPTIONS=libGL.so.1
DESTINATION="$PWD/usr/lib/"


findFiles() {
	find "$DESTINATION" -iname "*.so"
	find "$DESTINATION" -iname "*.so.*"
	
	for i in $@; do
		[ -d "$i" ] && find "$i" -type f -perm /a+x
		[ -f "$i" ] && echo "$i"
	done
}

extractDependencies() {
	#objdump -p "$@" 2>/dev/null | egrep NEEDED | awk '{ print $2 }' | grep -v "$PWD" | egrep "^/" | sort | uniq
	LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$DESTINATION" ldd "$@" | grep "not found" | sort | uniq >&2
	LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$DESTINATION" ldd "$@" 2>/dev/null | grep -v "not a dynamic executable" | grep -v "^\." | grep -v "$PWD" | cut -d" " -f3 | grep "^/" | sort | uniq
}

extractRuntimeDependencies() {
	strings "$@" | egrep \\.so
}



mkdir -p "$DESTINATION"

OIFS=$IFS
NIFS=$'\n'
IFS=$NIFS

prev_libs=
while true; do
	files=$(findFiles "$@")
	libs=$(extractDependencies $files)
	#runlibs=$(extractRuntimeDependencies $@)

	#if [ -n "$libs" ]; then
		#echo "Libraries: $libs"
	#fi

	#if [ -n "$runlibs" ]; then
		#echo "Runtime libraries: $runlibs"
		#libs+=" $runlibs"
	#fi

	for i in $EXCEPTIONS; do
		#echo "Ignoring $i"
		#libs=${libs//$i/}
		for j in $libs; do
			[[ "$j" =~ "$i" ]] && {
				echo "Ignoring $j"
				libs=${libs//$j/}
			}
		done
        done

	for i in $libs; do
		dest_lib=$DESTINATION/$(basename "$i")
		if [ ! -f "$dest_lib" ]; then
			if [ -f "$i" ]; then
				cp -v "$i" "$dest_lib"
				chmod +x "$dest_lib"
			else
				echo "!! Could not find dependency $i"
			fi
		fi
	done

	# If no new libraries have been found, break the loop
	if [ "$prev_libs" = "$libs" ]; then
		break;
	fi

	prev_libs=$libs
done

cp -v /lib/ld-linux.so.2 usr/lib/