LFS: 移植Gentoo Portage系统的脚本

#!/bin/bash



PackageName=portage-2.2_rc35
PackageURL=http://mirror.mcs.anl.gov/pub/gentoo/distfiles/portage-2.2_rc35.tar.bz2
patchURL=http://mirror.mcs.anl.gov/pub/gentoo/distfiles/portage-2.2_rc40.patch.bz2


#local vars.
libdir=lib
portage_base="/usr/${libdir}/portage"
portage_share_config=/usr/share/portage/config
S=$LFS_TEMP/$PackageName
D=
ARCH=x86

#echek error code. $1 is string if error.
err_check()
{
 if [ "$?" != 0 ]; then
 echo $1
 exit 1
 fi
 return 0
}


die()
{
        echo $*
        exit 1
}

instman()
{
        for i in $(ls $1 2>/dev/null);
        do
 len=${#i}
 len=$(($len-1))
 manind=${i:$len:1}
 cp $i /usr/share/man$manind
 err_check "copy $i failed."
        done
}


case "${1}" in
download)
 #替换成你自己的下载命令
        check_and_download $PackageURL
        check_and_download $patchURL
        ;;
build)
        #step0: unpack.
 #替换成你自己的解压命令, 并到解压后的源码目录
 unpack_and_enter $PackageName $PackageURL

        #patch.
        bzip2 -dc $LFS_SOURCE/`basename $patchURL` | patch -p0
        err_check "[Error] patch $PackageName failed."

        #install cnf.
        cd "${S}"/cnf
 cp etc-update.conf dispatch-conf.conf /etc
        err_check "[Error] copy cnf of $PackageName failed."

        mkdir -p ${portage_share_config}
 cp ./{sets.conf,make.globals} ${portage_share_config}
        err_check "[Error] copy sets.conf of $PackageName failed."

 if [ -f "make.conf.${ARCH}".diff ]; then
 patch make.conf "make.conf.${ARCH}".diff || \
 die "Failed to patch make.conf.example"
 cp make.conf ${portage_share_config}/make.conf.example
 else
 echo ""
 echo "Portage does not have an arch-specific configuration for this arch."
 echo "Please notify the arch maintainer about this issue. Using generic."
 echo ""
 cp make.conf ${portage_share_config}/make.conf.example
 fi

        #make symbol
        rm /etc/make.globals
        ln -sv ${portage_share_config}/make.globals /etc/make.globals


        #install bins
        for x in $(find "$S"/bin -type d) ; do
 x=${x#$S/}
 mkdir -p $portage_base/$x || die "dodir failed"
 cd "$S"/$x || die "cd failed"
 cp $(find . -mindepth 1 -maxdepth 1 -type f ! -type l) \
 $portage_base/$x || \
 die "doexe failed"
 symlinks=$(find . -mindepth 1 -maxdepth 1 -type l)
 if [ -n "$symlinks" ] ; then
 cp -P $symlinks "$D$portage_base/$x" || die "cp failed"
 fi
 done

        #install pym
        for x in $(find "$S"/pym -type d) ; do
 x=${x#$S/}
 mkdir -p $portage_base/$x || die "dodir failed"
 cd "$S"/$x || die "cd failed"
 cp *.py $portage_base/$x || die "doins failed"
 symlinks=$(find . -mindepth 1 -maxdepth 1 -type l)
 if [ -n "$symlinks" ] ; then
 cp -P $symlinks "$D$portage_base/$x" || die "cp failed"
 fi
 done

        # Symlinks to directories cause up/downgrade issues and the use of these
 # modules outside of portage is probably negligible.
 for x in "${D}${portage_base}/pym/"{cache,elog_modules} ; do
 [ ! -L "${x}" ] && continue
 die "symlink to directory will cause upgrade/downgrade issues: '${x}'"
 done

 cp "${S}"/pym/portage/tests/runTests ${portage_base}/pym/portage/tests

        #install man pages.
        instman "${S}"/man/*.[0-9]

        #/usr/bin
        for x in ebuild egencache emerge portageq repoman ; do
 ln -sv ../${libdir}/portage/bin/${x} /usr/bin/${x}
 done

        #/usr/sbin
        my_syms="archive-conf
 dispatch-conf
 emaint
 emerge-webrsync
 env-update
 etc-update
 fixpackages
 quickpkg
 regenworld"
 for x in ${my_syms}; do
 ln -sv ../${libdir}/portage/bin/${x} /usr/sbin/${x}
 done

        ln -sv env-update /usr/sbin/update-env
 ln -sv etc-update /usr/sbin/update-etc

        mkdir -p /etc/portage


        #get portage.

        #symbol link
        ln -sv ../usr/portage/profiles/default/linux/x86/10.0 /etc/make.profile


        #add user/group
        useradd -M -c "portage system" -s /bin/false portage
        
        ;;

*)
        exit 1
        ;;
esac

#end

emerge -avtO 软件包名