#! /bin/sh
################################################################
# 32bit deb Change to 64bit deb
################################################################
#원본파일명
ORIGIN_DEB_FILE_NAME=$1
#변환파일명
CHAGE_DEB_FILE_NAME=$2

description() {
	echo '사용방법 설명 : ./change.sh 원본파일 변환파일'
	echo 'ex ) honeymon:~$ ./change.sh a.deb b.deb'
	echo 'So, deb file change 32bit to 64bit'
}

# 임시 디렉토리(tmp) 생성후에 32bit deb 압축을 풀고 i386으로 된
# Architecture를 all로 변경한 후에 다시 리팩키징하는 함ㅅ
changeDeb() {
	#make tmp directory
	mkdir tmp
	
	#Extract the deb file to the tmp dir
	dpkg-deb -x $ORIGIN_DEB_FILE_NAME tmp
	
	#Extract the control files :
	dpkg-deb --control $ORIGIN_DEB_FILE_NAME tmp/DEBIAN
	
	#Change the Architecture parameter from "i386" to "all";
	sed -i "s/i386/all/" tmp/DEBIAN/control
	
	#Repackage the deb file :
	dpkg -b tmp $CHAGE_DEB_FILE_NAME

	#Remove tmp directory :
	rm -rf tmp
}

if [ $# = 0 ]; then
	description
else
	changeDeb
fi