# Author: Daniel Drake <dsd@gentoo.org>
# http://dev.gentoo.org/~dsd/development-platform/

source /usr/lib/portage/bin/ebuild.sh daemonize
source /usr/lib/portage/bin/ebuild-functions.sh

SANDBOX_ON=1
ECLASSDIR="/usr/portage/eclass"
PATH="${PATH}:/usr/lib/portage/bin"

# Redefine unpack with an empty function, as we will be providing the sources
unset unpack
unpack() {
	einfo "Would normally unpack: $*"
}

# Find an ebuild of the specified name and version, source it, and set up the
# development ebuild environment.
# Usage: use-ebuild <packagename> <version>
use-ebuild() {
	S="$(pwd)"
	T="/tmp"

	PN="$1"
	PVR="$2"
	PV="${PVR%-r*}" # FIXME i'm wrong
	P="${PN}-${PV}"
	PF="${PN}-${PVR}"
	EBUILD="${PF}.ebuild"

	ecd ${PN}
	FILESDIR="$(pwd)/files"
	source ${EBUILD}

	cd ${S}
}


# From ciaranm's bashrc 2005-05-02
# change to an ebuild's directory.
ecd() {
    local pc d

    pc=$(efind $*)
    d=$(eportdir)

    if [[ $pc == "" ]] ; then
        echo "nothing found for $*"
        return 1
    fi

    cd ${d}/${pc}
}

# From ciaranm's bashrc 2005-05-02
# find a given ebuild. based upon code by agriffis. does some fancy prediction,
# so it will find categories if necessary (eg efind sparc-dev-sources will find
# sys-kernel/sparc-dev-sources, and does partial name matching). prints the
# result in the form category/package .
efind() {
    local efinddir cat pkg
    efinddir=$(eportdir)

    case $1 in
        *-*/*)
            pkg=${1##*/}
            cat=${1%/*}
            ;;

        ?*)
            pkg=${1}
            cat=$(echo1 ${efinddir}/*-*/${pkg}/*.ebuild)
            [[ -f $cat ]] || cat=$(echo1 ${efinddir}/*-*/${pkg}*/*.ebuild)
            [[ -f $cat ]] || cat=$(echo1 ${efinddir}/*-*/*${pkg}/*.ebuild)
            [[ -f $cat ]] || cat=$(echo1 ${efinddir}/*-*/*${pkg}*/*.ebuild)
            if [[ ! -f $cat ]]; then
                return 1
            fi
            pkg=${cat%/*}
            pkg=${pkg##*/}
            cat=${cat#${efinddir}/}
            cat=${cat%%/*}
        ;;
    esac

    echo ${cat}/${pkg}
}

# From ciaranm's bashrc 2005-05-02
# find either a cvs co of gentoo's portage module or the portage directory, and
# echo the result.
eportdir() {
    # does fast cache magic. portageq in particular is really slow... this makes
    # subsequent calls to eportdir() pretty much instantaneous, as opposed to
    # taking several seconds.
    if [[ -n "${PORTDIR_CACHE}" ]] ; then
        echo "${PORTDIR_CACHE}"
    elif [[ -d ${HOME}/cvs/portage ]] ; then
        PORTDIR_CACHE="${HOME}/cvs/portage"
        eportdir
    elif [[ -d /usr/portage ]] ; then
        PORTDIR_CACHE="/usr/portage"
        eportdir
    else
        PORTDIR_CACHE="$(portageq portdir )"
        eportdir
    fi
}

# From ciaranm's bashrc 2005-05-02
echo1() {
    echo "$1"
}