[gentoo-dev] cmake.eclass

[Panard]

Hi,

I needed to write a cmake eclass to build out of the sources.
So, here is my cmake.eclass... I hope it will be usefull.

4 functions are defined :
cmake_use_option <USEFLAG> [<OPTION> [<value if use> [<value else>]]]
# eg:
# USE=qt debug
# cmake_use_option qt => -DWITH_qt=ON
# cmake_use_option gtk => -DWITH_gtk=OFF
# cmake_use_option qt ENABLE_QUI => -DENABLE_QUI=ON
# cmake_use_option gtk ENABLE_GUI => -DENABLE_GUI=OFF
# cmake_use_option gtk ENABLE_NOGUI OFF => -DENABLE_NOGUI=ON
# cmake_use_option doc GENDOC full =>
# cmake_use_option html DOCFORMAT html text => -DGENDOC=text
# cmake_use_option debug CMAKE_BUILD_TYPE debugfull 
=> -DCMAKE_BUILD_TYPE=debugfull

cmake_configure:
   create BUILDDIR, and run cmake with selected debug (and with prefix=/usr)
cmake_compile
   emake in BUILDDIR
cmake_install
   emake DESTDIR=$D install in BUILDDIR
   clean BUILDDIR

Any comment appreciated...

Beers,

Panard
-- 
HomePage: http://dev.inzenet.org/~panard/
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# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

#
# Original Author: panard
# Purpose: cmake with a separate builddir
#

ECLASS="cmake"
INHERITED="$INHERITED $ECLASS"

DEPEND="dev-util/cmake"
RDEPEND=""

IUSE="debug"

BUILDDIR="${WORKDIR}/cmake-build"

# cmake option helper:
#       cmake_use_option <USEFLAG> [<OPTION> [<value if use> [<value else>]]]
# eg:
# USE=qt debug
# cmake_use_option qt => -DWITH_qt=ON
# cmake_use_option gtk => -DWITH_gtk=OFF
# cmake_use_option qt ENABLE_QUI => -DENABLE_QUI=ON
# cmake_use_option gtk ENABLE_GUI => -DENABLE_GUI=OFF
# cmake_use_option gtk ENABLE_NOGUI OFF => -DENABLE_NOGUI=ON
# cmake_use_option doc GENDOC full =>
# cmake_use_option html DOCFORMAT html text => -DGENDOC=text
# cmake_use_option debug CMAKE_BUILD_TYPE debugfull => 
-DCMAKE_BUILD_TYPE=debugfull
#
cmake_use_option() {
        local USEFLAG="$1"; shift
        local OPTION="$1"; shift
        if [ -z "${OPTION}" ]; then
                OPTION="WITH_${USEFLAG}"
        fi
        local E_VALUE="ON" # value if use
        local D_VALUE="OFF" # value if not used
        if [ ! -z "$1" ]; then
                case $1 in
                        on|On|oN|ON)
                                ;;
                        off|ofF|oFf|oFF|Off|OfF|OFf|OFF)
                                # reverse values
                                E_VALUE="OFF"
                                D_VALUE="ON"
                                ;;
                        *)
                                # non-boolean option
                                E_VALUE="$1"
                                D_VALUE="$2"
                                ;;
                esac
        fi

        local opt="-D${OPTION}="
        if useq ${USEFLAG}; then
                opt="${opt}${E_VALUE}"
        elif [ ! -z "${D_VALUE}" ]; then
                opt="${opt}${D_VALUE}"
        else
                opt=""
        fi
        echo ${opt}
}

cmake_configure() {
        debug-print-function
        debug-print "${FUNCNAME}: BUILDDIR is '${BUILDDIR}'"

        mkdir -p ${BUILDDIR}
        cd ${BUILDDIR}
        vecho cmake ${S} -DCMAKE_INSTALL_PREFIX=/usr $(cmake_use_option debug 
CMAKE_BUILD_TYPE debugfull) $*
        cmake ${S} -DCMAKE_INSTALL_PREFIX=/usr $(cmake_use_option debug 
CMAKE_BUILD_TYPE debugfull) $*
        ret=$?
        cd ${OLDPWD}
        return $ret
}

cmake_compile() {
        cd ${BUILDDIR}
        emake $*
        ret=$?
        cd ${OLDPWD}
        return $ret
}

cmake_install() {
        cd ${BUILDDIR}
        emake DESTDIR="${D}" $* install
        ret=$?
        rm -rf ${BUILDDIR}
        cd ${OLDPWD}
        return $ret
}

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