Bug#50231: in plain text this time

[Alain Tesio <alain@onesite.org>]

#!/bin/sh

# informations on stderr
# obsoletes files on stdout, delete with "$0 | xargs rm"

cd /var/cache/apt/archives

total_size=0
for package in `ls -1 *deb | sed "s/_.*//" | sort -u`
do
	echo -n "Package '$package' : " > /dev/stderr
	apt-cache show $package | grep -q "W: Unable to locate package $package"
	if (test $? -eq 0)
	then
		echo " ERROR : apt-cache show doesn't know about it" > /dev/stderr
		continue
	fi
	apt-cache show $package | grep -q "Filename: "
	if (test $? -eq 1)
	then
		echo " ERROR : apt-cache show doesn't show the file name" > /dev/stderr
		continue
	fi
	installed_file=`apt-cache show $package | grep "Filename: " | sed "s/.*\/\([^/]\)/\1/"`
	echo $installed_file > /dev/stderr
	for file in `ls -1 $package\_*`
	do
		translated_file=`echo $file | sed "s/[0-9]%3a//"`
		if (test $translated_file != $installed_file)
		then
			size=`stat $file | grep "Size:" | awk '{print $2}'`
			echo "   Obsolete file $file ($size bytes)" > /dev/stderr
			total_size=`echo "$total_size+$size" | bc`
			echo $file
		fi
	done
done

total_size_mb=`echo "$total_size/1024^2" | bc`
echo "Total size of obsolete files : $total_size_mb MBytes" > /dev/null