localbackuppkglists



#!/bin/sh
#
# /usr/local/sbin/localbackuppkglists
# Copyright 2007 Jonas Smedegaard <dr@jones.dk>
#
# $Id: localbackuppkglists,v 1.3 2008-02-08 20:59:57 jonas Exp $
#
# Depends: aptitude and debconf-utils
#
# TODO: Use aptitude-create-state-bundle if available
# TODO: Mimic aptitude-create-state-bundle if not available
# TODO: Save packages recommended but unavailable

set -e

PRG=$(basename "$0")

TEMP="`getopt -s sh -o t:f -l target:,force -n "$PRG" -- "$@"`"
if [ $? != 0 ] ; then echo >&2 "ERROR: Internal getopt error." ; exit 1 ; fi
eval set -- "$TEMP"

targetdir=''
force='no'
while true ; do
    case "$1" in
        -t|--target) targetdir="$2" ; shift 2 ;;
        -f|--force) force="yes" ; shift ;;
        --) shift ; break ;;
        *) echo >&2 "ERROR: Internal error resolving options." ; exit 1 ;;
    esac
done

if [ -n "$targetdir" ]; then
    targetdirparent="$(dirname "$targetdir")"
    if ! [ -d "$targetdirparent" ]; then
        if [ "$force" = "yes" ]; then
            mkdir -p "$targetdirparent"
        else
            echo >&2 "Error: Parent directory for target directory does not exist."
            exit 1
        fi
    elif [ -e "$targetdir" ]; then
        if [ "$force" = "yes" ]; then
            rm -rf "$targetdir"
        else
            echo >&2 "Error: Target directory already exists."
            exit 1
        fi
    fi
fi

tempdir="$(mktemp -td localpkglists.XXXXXX)"

origlang="$LANG"
export LANG='C.UTF-8'

dpkg --get-selections > "$tempdir/dpkg-selections.txt"

aptitude -F '%p#%v#' search '~i!~M' > "$tempdir/aptitude-installed-explicitly.txt"
aptitude -F '%p#%v#' search '~i!~Odebian' > "$tempdir/aptitude-installed-aliens.txt"
aptitude -F '%p#' search '!~i~Rrecommends:(~i)' > "$tempdir/aptitude-notinstalled-recommended.txt"

debconf-get-selections > "$tempdir/debconf-questions.txt"
debconf-get-selections --installer > "$tempdir/debconf-questions-di.txt" 2> /dev/null || true

dpkg-query -W -f='${Conffiles}\n' | grep obsolete$ > "$tempdir/cfg-obsolete.txt" 2> /dev/null || true

export LANG="$origlang"

if [ -n "$targetdir" ]; then
    mv "$tempdir" "$targetdir"
    rm -rf "$tempdir"
fi