Chip 2007 January, February, March & April/Chip-Cover-CD-2007-02.iso/Pakiet bezpieczenstwa/mini Pentoo LiveCD 2006.1/mpentoo-2006.1.iso/livecd.squashfs/usr/sbin/opengl-update

Text File | 2006-04-12 | 4.1 KB | 168 lines

#!/bin/bash
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/x11-base/opengl-update/files/opengl-update-3.0.0,v 1.4 2005/08/17 21:51:02 eradicator Exp $
# Author:  Martin Schlemmer <[e-mail]>
# Further modifications by Donnie Berkholz <[e-mail]>
# Further modifications based off submissions to bug #54984 <[e-mail]>
# Further modifications by Jeremy Huddleston <[e-mail]>

. /etc/init.d/functions.sh

hasq() {
    local x

    local me=${1}
    shift

    for x in "${@}"; do
        if [[ "${x}" == "${me}" ]]; then
            return 0
        fi
    done
    return 1
}

print_usage() {
    cat << FOO
Usage: ${0##*/} [<options>] <GL implementation>
       Set the opengl implementation.
       Valid options:
       --use-old:          If an implementation is already set, use that one.
       --prefix=<val>:     Set the source prefix (default: /usr)
       --dst-prefix=<val>: Set the destination prefix (default: /usr)
       --impl-headers:     Use headers provided by this implementation to
                           override golbal ones provided by opengl-update.

Usage: ${0##*/} --get-implementation
       Print the current implementaion

Notes:
       --impl-headers was default in <opengl-update-2.2.

Examples:
       ${0##*/} xorg-x11
       This will setup things to use libGL.so from X.org.

       ${0##*/} nvidia
       This will setup things to use libGL.so from the nVidia drivers.

WARNING: opengl-update is deprecated and is just a frontend to the opengl
         eselect module.  In the future, opengl-update will be removed
         from portage.  Please see 'eselect opengl help'

FOO
}

get_implementations() {
    local implems
    for dir in ${PREFIX}/lib{,32,64}/opengl/*; do
        if [[ -d "${dir}" && ${dir##*/} != "global" ]] && ! hasq ${dir##*/} ${implems}; then
            implems=${implems:+${implems} }${dir##*/}
        fi
    done
    echo ${implems}
}

parse_options() {
    local opt
    while [[ ${#} -gt 0 ]]; do
        opt=${1}
        shift
        case ${opt} in
            --use-old)
                if [[ -n "${ACTION}" ]]; then
                    ACTION="error"
                    eerror "Invalid usage."
                else
                    if [[ -n "${CURRENT_GL_IMPLEM}" ]] && hasq ${CURRENT_GL_IMPLEM} ${AVAIL_IMPLEMS}; then
                        ACTION="old-implementation"
                    fi
                fi
            ;;
            --get-implementation)
                if [[ -n "${ACTION}" ]]; then
                    ACTION="error"
                    eerror "Invalid usage."
                else
                    ACTION="get-implementation"
                fi
            ;;
            --prefix=*)
                PREFIX=${opt#*=}
                AVAIL_IMPLEMS=$(get_implementations)
            ;;
            --dst-prefix=*)
                DST_PREFIX=${opt#*=}
            ;;
            --impl-headers)
                USE_PROFILE_HEADERS="yes"
            ;;
            --help|-h|-?)
                ACION="usage"
            ;;
            *)
                if hasq ${opt} ${AVAIL_IMPLEMS}; then
                    if [[ "${ACTION}" != "old-implementation" ]]; then
                        if [[ -n "${ACTION}" ]]; then
                            ACTION="error"
                            eerror "Invalid usage."
                        else
                            ACTION="set-implementation"
                            NEW_GL_IMPLEM="${opt}"
                        fi
                    fi
                else
                    eerror "Unrecognized option: ${opt}"
                    ACTION="error"
                fi
            ;;
        esac
    done
}

## START PROGRAM ##

NEW_GL_IMPLEM=""
ACTION=""
PREFIX="/usr"
DST_PREFIX="/usr"
AVAIL_IMPLEMS=$(get_implementations)
CURRENT_GL_IMPLEM=$(eselect opengl show)
USE_PROFILE_HEADERS="no"

parse_options ${@}

case ${ACTION} in
    get-implementation)
        eselect opengl show
    ;;
    old-implementation)
        ewarn "opengl-update is deprecated and is just a frontend to the opengl"
        ewarn "eselect module.  In the future, opengl-update will be removed"
        ewarn "from portage.  Please see 'eselect opengl help'"

        eselect opengl set --use-old
        exit $?
    ;;
    set-implementation)
        ewarn "opengl-update is deprecated and is just a frontend to the opengl"
        ewarn "eselect module.  In the future, opengl-update will be removed"
        ewarn "from portage.  Please see 'eselect opengl help'"

        if [[ ${USE_PROFILE_HEADERS} == "yes" ]] ; then
            eselect opengl set ${NEW_GL_IMPLEM} --prefix="${PREFIX}" --dst-prefix="${DST_PREFIX}" --impl-headers
        else
            eselect opengl set ${NEW_GL_IMPLEM} --prefix="${PREFIX}" --dst-prefix="${DST_PREFIX}"
        fi
    ;;
    usage)
        print_usage
        exit 0
    ;;
    *)
        print_usage
        exit 1
    ;;
esac