#!/bin/bash
# Copyright Paul Sladen 2005-05-20
# Distributable under the terms of the GNU GPL v2.
VERSION="0.0.1"

usage ()
{
    cat << EOF 1>&2
usage:  ${0##*/} [-h|--help] action [package|search-string|.deb]
        (see --help for more information)
EOF
}

usage_full ()
{
        cat << EOF
Usage:  ${0##*/} [-h|--help] <action> [package|pattern|.deb]
apt-foo and dpkg wrapper to make life *really* baz-esq simple.

Options:
        -h, --help              this help
Actions:
	build			fakeroot apt-get -b source <package>
	build-dep		sudo apt-get build-dep <packages...>
	clean			sudo apt-get clean
	dist-upgrade		sudo apt-get dist-upgrade
	install			sudo apt-get install <packages...>
				sudo dpkg -i <package.deb>
	purge			sudo apt-get --purge remove <packages...>
	remove			sudo apt-get remove <packages...>
	source			apt-get source
	update			sudo apt-get update
	upgrade			sudo apt-get upgrade

	search			apt-cache search <match>
	show			apt-cache show <package>
	showpackage|showpkg	apt-cache showpkg <package>
	statistics|stats	apt-cache stats

	reconfigure		sudo dpkg-reconfigure <package>

	find|which		dpkg -S <pattern>
	list			dpkg -l <pattern>
	listfiles		dpkg -L <package>
	status			dpkg -s <package>

	select			sudo dselect | sudo synaptic

	archives		grep '^deb ' /etc/apt/sources.list
	enable			main|restricted|universe|multiverse
	info			apt-cache show <package> | grep -E '^(Description:)? '
	setup			sudo apt-setup
EOF
#Gentoo compatibility mode (TODO):
#        emerge                  sudo apt-get build-dep && mkdir -p /tmp/emerge-$$
#                                (cd /tmp/emerge-$$ ; fakeroot apt-get -b source &&
#                                sudo dpkg -i <package>*.deb ) ; rm -rf /tmp/emerge-$$
}

case "$1" in
    # apt-get 
    build|emerge)
	priv=fakeroot ; command=apt-get ; action=source ; flags=-b ;;
    build-dep|clean|dist-upgrade|remove|update|upgrade)
	priv=sudo ; command=apt-get ; action="$1" ;;
    install)
	case "$2" in
	    *.deb)
		priv=sudo ; command=dpkg ; action=-i ;;
	    *)
		priv=sudo ; command=apt-get ; action="$1" ;;
	esac ;;
    purge)
	priv=sudo ; command=apt-get ; action=remove ; flags=--purge ;;
    source)
	command=apt-get ; action=source ;;
    # apt-cache
    search|show|showpkg)
	command=apt-cache ; action="$1" ;;
    statistics|stats)
	command=apt-cache ; action="stats" ;;
    # dpkg-reconfigure
    reconfigure)
	priv=sudo ; command=dpkg-reconfigure ;;
    # dpkg
    find|which)
	command=dpkg ; action=-S ;;
    list|listfiles|status)
	command=dpkg ; action="--$1" ;;
    # dselect / synaptic
    select)
	echo "$DISPLAY"
	case "$DISPLAY" in
	    *:*)
	    	priv=sudo ; command=synaptic ;;
	    ""|*)
		priv=sudo ; command=dselect ;;
	esac ;;
    # grepping
    archives)
	exec grep '^deb ' /etc/apt/sources.list ;;
    enable)
	shift
	exec sudo sed -i.apt-enable -e "s/^deb\ .*$/& $*/" /etc/apt/sources.list ;;
    info)
	shift
	apt-cache show "$@" | grep -E '^(Description:)? ' ; exit ;;
    # apt-setup
    setup)
        priv=sudo ; command=apt-setup ;;
    # assistance
    -h|--help|help)
	usage_full ; exit ;;
    "")
        usage ; exit ;;
    *)
	echo "E: Invalid action '$1'" >2
	usage ; exit ;;
esac
shift

echo running: $priv "$command" "$action" $flags "$@"
if [ "x$priv" = "x" ] ; then
    exec "$command" "$action" $flags "$@"
else
    exec $priv "$command" $action $flags "$@"
fi