#!/bin/bash

deblist="/var/cache/deblist"
temp_file="/tmp/policy"

update() {
if [ `id -u` -ne 0 ]; then echo "Vous devez être ROOT"; exit 1; fi
rm -f "$deblist" > /dev/null;
for i in `dpkg -l | grep ^ii | awk '{print $2}'` ; do
    apt-cache policy $i  > "$temp_file"
    let j=`cat -n $temp_file | grep 100\ \/var\/lib\/dpkg\/status | awk '{print $1}'`-1;
    echo "$i: `cat -n $temp_file | sed -n "$j"p | awk '{print $3" "$4" "$5" "$6}'`" >> "$deblist";
done
rm -f "$temp_file" > /dev/null;
}

if [ ! -f $deblist ] && [ "$1" != "-u" ]; then
    echo "Veuillez faire '`basename $0` -u' SVP";
    exit 1;
fi

case $1 in
    -h)
        echo "Usage: `basename $0` -u   : met à jour la base de donnée (root)"
        echo "       `basename $0`  : affiche la base de donnée"
        exit 0;
        ;;
    -u)
        update
        exit 0
        ;;
    *)
        cat "$deblist"
        ;;
esac