#!/bin/bash

HELP=0
PRINT_INPUTS=0
FORCE_GZIP=0
FORCE_BZIP2=0

DONE=0
while [ $DONE = 0 ]
do
case "$1" in
--force-gzip )
FORCE_GZIP=1
FORCE_BZIP2=0
shift
;;
--force-bzip2 )
FORCE_GZIP=0
FORCE_BZIP2=1
shift
;;
--help )
HELP=1
shift
;;
--print-inputs )
PRINT_INPUTS=1
shift
;;
* )
DONE=1
;;
esac
done

if ([ $PRINT_INPUTS = 0 ] && [ "$#" -ne 1 ]) ||
([ $PRINT_INPUTS = 1 ] && [ "$#" -ne 0 ]) ||
[ $HELP = 1 ]
then
echo "Usage: $0 [options ... ] <output-file>"
echo
echo "This script will collect the copious information needed to"
echo "reproduce an aptitude bug, storing it in the given output file."
echo
echo "Options:"
echo " --force-bzip2 Override autodetection of the comrpession"
echo " format: use bzip2 even if it appears to be"
echo " unavailable."
echo " --force-gzip Override autodetection of the compression"
echo " format: use gzip even if bzip2 is available."
echo " --help Print this message, then exit."
echo " --print-inputs Display the list of files and directories"
echo " that would be included in the bundle, then exit."

exit 1
fi

INPUTS[1]="$HOME/.aptitude"
INPUTS[2]="/var/lib/aptitude"
INPUTS[3]="/var/lib/apt"
INPUTS[4]="/var/cache/apt/*.bin"
INPUTS[5]="/etc/apt"
INPUTS[6]="/var/lib/dpkg/status"

if [ $PRINT_INPUTS = 1 ]
then
for x in ${INPUTS[@]}; do echo $x; done
exit 0
fi

# Stick "." on the front of all inputs.
declare -a REALINPUTS
i=1
while [ $i -le ${#INPUTS[*]} ]
do
REALINPUTS[$i]=./${INPUTS[$i]}
i=$((i + 1))
done

OUTFILE="$1"

if [ $FORCE_BZIP2 = 1 ] || ([ $FORCE_GZIP = 0 ] && which bzip2 2> /dev/null > /dev/null)
then
COMPRESSOR=bzip2
else
COMPRESSOR=gzip
fi

(cd / && tar c ${REALINPUTS[@]}) | $COMPRESSOR -c > "$OUTFILE"