# Marc E. Fiuczynski <mef@cs.princeton.edu>
# Copyright (C) 2007 The Trustees of Princeton University
#
-# $Id: build.common,v 1.3 2007/08/31 03:17:34 mef Exp $
+# $Id$
#
-function pl_getDefaultFedoraRelease() {
- # FC4 is currently the default release
- return 4
+# support for fedora and centos only for now
+
+function pl_getDistro() {
+ if [ -f "/etc/redhat-release" ] ; then
+ distro=$(awk ' { print $1 } ' /etc/redhat-release)
+ else
+ echo "build.common.pl_getDistro-unknown"
+ exit 1
+ fi
+ echo "$distro"
+ return 0
}
-function pl_getFedoraRelease() {
- pl_getDefaultFedoraRelease
- defaultFedoraRelease=$?
- if [ -f "/etc/fedora-release" ] ; then
- fedoraRelease=$(awk ' { if ($2=="Core") print $4; else print $3 } ' /etc/fedora-release)
- [ $fedoraRelease -lt $defaultFedoraRelease ] && fedoraRelease=$defaultFedoraRelease
+function pl_getRelease() {
+ if [ -f "/etc/redhat-release" ] ; then
+ release=$(awk ' { if ($1=="Fedora" && $2=="Core") print $4 ; if (($1=="Fedora" && $2!="Core")||$1=="CentOS") print $3 } ' /etc/redhat-release)
else
- fedoraRelease=$defaultFedoraRelease
+ echo "build.common.pl_getRelease-unknown"
+ exit 1
fi
- return $fedoraRelease
+ echo "$release"
+ return 0
}
-# select basearch of the host devel environment
-pl_FEDORA_ARCH=$(uname -i)
+# vserver expects something like fc4 or f7
+function pl_getReleaseName () {
+ distro=$1; shift
+ release=$1; shift
+ case $distro in
+ [Ff]edora*)
+ if [ "$release" -le 6 ] ; then
+ releasename=fc$release
+ else
+ releasename=f$release
+ fi ;;
+ [Cc]entOS*)
+ old_IFS="$IFS"
+ IFS="."
+ set -- $release
+ IFS="$old_IFS"
+ releasename=centos$1
+ ;;
+ *)
+ releasename="unknown-name-for-${pl_DISTRO}-please-edit-build.common"
+ echo 1>&2 "build.common: WARNING - releasename not set for distro=$distro"
+ return 1
+ ;;
+ esac
+ echo "$releasename"
+ return 0
+}
+
+# figure out which redhat distro we are using (fedora, centos, redhat)
+pl_DISTRO=$(pl_getDistro)
+
+# select basearch of the host devel environment - protected for macos for local tests
+pl_DISTRO_ARCH=$(uname -i 2>/dev/null|| echo unknownarch)
-# let mkfedora select one of its mirrors
-pl_FEDORA_URL=""
+# the release number (plain number)
+pl_DISTRO_RELEASE=$(pl_getRelease)
-pl_getFedoraRelease
-pl_FEDORA_RELEASE=$?
+# the release name - for vserver build - like fc4, f8 or centos4
+pl_DISTRO_NAME=$(pl_getReleaseName $pl_DISTRO $pl_DISTRO_RELEASE)
-# get patch to appropriate yumgroups.xml file
-# XXX This path should be relative to PLDISTRO, as defined in
-# build/Makefile
-pl_YUMGROUPSXML="../build/groups/v4_yumgroups.xml"
+# get path to appropriate yumgroups.xml file
+# Thierry: quick & dirty improvement
+# this file is updated by the toplevel build, from groups/<pldistro>.xml
+pl_DISTRO_YUMGROUPS="../../../RPMS/yumgroups.xml"
function pl_process_fedora_options () {
# Get options
while getopts "l:r:a:h" opt ; do
case $opt in
l)
- pl_FEDORA_URL=$OPTARG
+ pl_DISTRO_URL=$OPTARG
let shiftcount=$shiftcount+2
;;
r)
- pl_FEDORA_RELEASE=$OPTARG
+ pl_DISTRO_RELEASE=$OPTARG
let shiftcount=$shiftcount+2
;;
a)
- pl_FEDORA_ARCH=$OPTARG
+ pl_DISTRO_ARCH=$OPTARG
let shiftcount=$shiftcount+2
;;
h|*)
echo "Usage: $0 [OPTION]..."
- echo " -l url Fedora mirror location (default: $pl_FEDORA_URL)"
- echo " -r release Fedora release number (default: $pl_FEDORA_RELEASE)"
- echo " -a arch Fedora architecture (default: $pl_FEDORA_ARCH)"
+ echo " -l url distro mirror location (default: $pl_DISTRO_URL)"
+ echo " -r release distro release number (default: $pl_DISTRO_RELEASE)"
+ echo " -a arch distro architecture (default: $pl_DISTRO_ARCH)"
+ echo "where distro can be either fedora, centos, or redhat"
echo " -h This message"
exit 1
;;
return $shiftcount
}
-function pl_makedevs() {
+######################################## handling a root image
+function pl_root_rpm_macros () {
+ cat <<EOF
+%_install_langs C:en_US:en
+%_netsharedpath /proc:/dev/pts:/usr/share/info
+%_excludedocs 1
+%__file_context_path /dev/null
+EOF
+}
+
+function pl_root_makedevs() {
vroot=$1
# Clean ${vroot}/dev, but only when ${vroot}!=""
[ -n $vroot ] && rm -rf $vroot/dev
# For mkinitrd (in case a kernel is being installed)
# As well for loop back mounting within a vserver.
- for i in $(seq 0 7) ; do
+ for i in $(seq 0 255) ; do
mknod -m 640 $vroot/dev/loop$i b 7 $i
done
}
-function pl_mkfedora() {
- root=$1
- shift
- options=$@
+function mkfedora_usage() {
+ echo "Usage: pl_root_mkfedora [OPTION]... basedir pldistro pkgsfile(s)"
+ echo " -l url Fedora mirror location."
+ echo " Defaults are searched in <pldistro>.mirrors"
+ echo " -v Be verbose"
+ echo " -h This message"
+ echo " target selection (defaults based on current build vserver)"
+ echo " -r release Fedora release number (default: $releasever)"
+ echo " -a arch Fedora architecture (default: $basearch)"
+ exit 1
+}
- pl_makedevs $root
+function pl_root_mkfedora () {
- [ -n "$pl_FEDORA_URL" ] && options="$options -l $pl_FEDORA_URL"
- [ -n "$pl_FEDORA_ARCH" ] && options="$options -a $pl_FEDORA_ARCH"
- [ -n "$pl_FEDORA_RELEASE" ] && options="$options -r $pl_FEDORA_RELEASE"
- # echo "mkfedora -v $options $root"
- eval mkfedora -v $options $root
-}
+ echo "* Entering pl_root_mkfedora" "$@"
-function pl_setup_chroot() {
- root=$1
- shift
- options=$@
+ if [ $UID -ne 0 ] ; then
+ echo "Error: You must run this script as root."
+ exit 1
+ fi
+
+# Verbosity
+ verbose=0
+
+# Release and architecture to install : defaults to current vserver's settings or previously parsed fedora_options
+ releasever=$pl_DISTRO_RELEASE
+ basearch=$pl_DISTRO_ARCH
+
+# Get options
+### mirrors=""
+### while getopts "l:r:a:vh" opt ; do
+ while getopts "vh" opt ; do
+ case $opt in
+### l) mirrors="$mirrors $OPTARG" ;;
+### r) releasever=$OPTARG ;;
+### a) basearch=$OPTARG ;;
+ v) verbose=1; set -x ;;
+ h|*) mkfedora_usage ;;
+ esac
+ done
+
+ shift $(($OPTIND - 1))
+ [[ "$#" -lt 3 ]] && mkfedora_usage
+ vroot=$1 ; shift
+ pldistro=$1 ; shift
+ pkgsfile="$@"
+ vroot=$(cd $vroot && pwd -P)
+ [ -d $vroot ] || mkfedora_usage
+
+
+ # parse pkgsfile and add to local vars
+ fcdistro=${pl_DISTRO_NAME}
+ pkgs_packages=$(pl_parsePkgs package $fcdistro $pldistro $pkgsfile)
+ pkgs_groups=$(pl_parsePkgs group $fcdistro $pldistro $pkgsfile)
+ # packages to exclude - obsolete, was maybe useful when installing a group
+ pkgs_excludes=$(pl_parsePkgs exclude $fcdistro $pldistro $pkgsfile)
+ pkgs_junk=$(pl_parsePkgs junk $fcdistro $pldistro $pkgsfile)
+ pkgs_precious=$(pl_parsePkgs precious $fcdistro $pldistro $pkgsfile)
+ # formerly related to mkfedora -k
+ pkgs_kexcludes=$(pl_parsePkgs kexclude $fcdistro $pldistro $pkgsfile)
+ # get mirrors if not specified with -l
+ if [ -z "$mirrors" ] ; then
+ mirrorsfile=$(pl_locateDistroFile ../build/ $pldistro "$pldistro.mirrors")
+ mirrors=$(pl_parsePkgs mirror $fcdistro $pldistro $mirrorsfile)
+ fi
+
+ exclude_line=""
+ # add them manually as the output of pl_parsePkgs is line-separated
+ if [ -n "$pkgs_kexcludes" ] ; then
+ exclude_line="exclude="
+ for kexclude in $pkgs_kexcludes ; do
+ exclude_line="$exclude_line $kexclude"
+ done
+ fi
+
+ echo "$0: candidate mirrors"
+ for mirror in $mirrors ; do
+ echo "* candidate mirror $mirror"
+ done
+
+ # the repo part of the final yum.conf
+ yum_conf_repos=$vroot/xxxmkfedora-repos.confxxx
+ if ! yumconf_mirrors $yum_conf_repos ../build/ $fcdistro "$exclude_line" $mirrors ; then
+ echo xxx -- error ; return 1
+ fi
+
+ public_gpg_key=$(yumconf_gpgkey $yum_conf_repos)
+
+ # Do not tolerate errors
+ set -e
+
+ ## make rpms ignore installing stuff to special fs entries like /proc
+ # Because of https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=52725
+ # you have to use at least one language beside 'C'
+ # Prevent all locales from being installed in reference image
+ mkdir -p $vroot/etc/rpm
+ pl_root_rpm_macros > $vroot/etc/rpm/macros
+
+ # Trick rpm and yum, who read the real root /etc/rpm/macros file
+ # rather than the one installed in the reference image, despite what
+ # you might expect the --root and --installroot options to mean. Both
+ # programs always read $HOME/.rpmmacros.
+ export HOME=$vroot/tmp
+ mkdir -p $vroot/tmp
+ pl_root_rpm_macros > $vroot/tmp/.rpmmacros
+
+ function mkfedora_cleanup () {
+ umount -l $vroot/proc
+ umount -l $vroot/dev/shm
+ umount -l $vroot/dev/pts
+ }
+
+ # Clean up before exiting if anything goes wrong
+ trap "mkfedora_cleanup" ERR INT
+
+ # Mount in reference image
+ mount -t devpts none $vroot/dev/pts
+ mount -t tmpfs none $vroot/dev/shm
+ mkdir -p $vroot/proc
+ mount -t proc none $vroot/proc
+
+ # Create a /var/lib dirs for yum & rpm
+ mkdir -p $vroot/var/lib/yum
+ mkdir -p $vroot/var/lib/rpm
+ mkdir -p $vroot/usr/share/info
+
+ # Create a dummy /etc/fstab in reference image
+ mkdir -p $vroot/etc
+ cat >$vroot/etc/fstab <<EOF
+# This fake fstab exists only to please df and linuxconf.
+/dev/hdv1 / ext2 defaults 1 1
+EOF
+ cp $vroot/etc/fstab $vroot/etc/mtab
+
+ # Necessary for some scripts
+ mkdir -p $vroot/etc/sysconfig
+ echo "NETWORKING=yes" > $vroot/etc/sysconfig/network
+
+ # Initialize RPM database in reference image
+ mkdir -p $vroot/var/lib/rpm
+ rpm --root $vroot --initdb
+ rpm --root $vroot --import $public_gpg_key
+
+ # Initialize yum in reference image
+ mkdir -p $vroot/var/cache/yum $vroot/var/log
+
+# yum.conf is for building only - store in different location than /etc/yum.conf
+ yum_conf=$vroot/etc/mkfedora-yum.conf
+ cat > $yum_conf <<EOF
+[main]
+cachedir=/var/cache/yum
+debuglevel=2
+logfile=/var/log/yum.log
+pkgpolicy=newest
+distroverpkg=redhat-release
+tolerant=1
+exactarch=1
+retries=20
+obsoletes=1
+gpgcheck=0
+# Prevent yum-2.4 from loading additional repository definitions
+# (e.g., from /etc/yum.repos.d/)
+reposdir=/dev/null
+EOF
+
+ cat $yum_conf_repos >> $yum_conf
+
+ # If we are being built as part of an automated RPM build, solve the
+ # bootstrap problem by including any just built packages in the yum
+ # configuration. This cooperates with the PlanetLab build system.
+ if [ -n "$RPM_BUILD_DIR" ] ; then
+ RPM_RPMS_DIR=$(cd $(dirname $RPM_BUILD_DIR)/RPMS && pwd -P)
+ # If run under sudo, allow user to delete the headers/ and
+ # repodata/ directories.
+ if [ -n "$SUDO_USER" ] ; then
+ chown -R $SUDO_USER $RPM_RPMS_DIR
+ fi
+ cat >> $yum_conf <<EOF
+
+[building]
+name=Building - $basearch - $RPM_RPMS_DIR/
+baseurl=file://$RPM_RPMS_DIR/
+EOF
+fi
+
+ echo "========== Dumping $yum_conf"
+ cat $yum_conf
+ echo "========== EndDump $yum_conf"
+
+ yum_options=""
+ yum --help | grep verbose &> /dev/null && yum_options="$yum_options --verbose"
+ yum_options="$yum_options -y"
+ yum_options="$yum_options -c $yum_conf"
+ yum_options="$yum_options --installroot=$vroot"
+
+ exclude_arg=""
+ for exclude in $pkgs_excludes; do
+ exclude_arg="$exclude_arg --exclude $exclude"
+ done
+
+ # glibc must be specified explicitly for the correct arch to be
+ # chosen.
+ echo "* Installing glibc"
+ yum $yum_options $exclude_arg install glibc
+
+ # Go, baby, go
+ if [ -n "$pkgs_packages" ] ; then
+ echo "* Installing optional packages" $pkgs_packages
+ yum $yum_options $exclude_arg install $pkgs_packages
+ if ! rpm --root $vroot -q $pkgs_packages >/dev/null ; then
+ echo "* Warning: Missing packages"
+ rpm --root $vroot -q $pkgs_packages | grep "not installed"
+ fi
+ fi
+
+ if [ -n "$pkgs_groups" ] ; then
+ ## call yum sequentially to get finer-grained info on dependencies
+ for grp in $pkgs_groups ; do
+ echo "* Installing optional group $grp"
+ yum $yum_options $exclude_arg groupinstall "$grp"
+ done
+ fi
+
+ # formerly in bootcd/prep.sh : to optimize footprint
+ if [ -n "$pkgs_junk" ] ; then
+ echo "* Removing unnecessary junk"
+ pushd $vroot
+ # Save precious files
+ [ -n "$pkgs_precious" ] && tar --ignore-failed-read -cpf precious.tar $pkgs_precious
+ # Remove unnecessary junk
+ [ -n "$pkgs_junk" ] && rm -rf $pkgs_junk
+ # Restore precious files
+ [ -n "$pkgs_precious" ] && tar -xpf precious.tar && rm -f precious.tar
+ popd
+ fi
+
+ # Clean yum cache
+ echo "* Cleaning up"
+ yum $yum_options clean all
+
+ # Clean RPM state
+ rm -f $vroot/var/lib/rpm/__db*
+
+ # Set time zone to UTC
+ if [ -f $vroot/usr/share/zoneinfo/UTC -a -f $vroot/etc/localtime ] ; then
+ rm -f $vroot/etc/localtime
+ ln -s /usr/share/zoneinfo/UTC $vroot/etc/localtime
+ fi
+
+ echo "Dumping current list of rpms in /etc/mkfedora-rpms.txt"
+ chroot $vroot rpm -aq | sort > $vroot/etc/mkfedora-rpms.txt
+
+ # remove trap handler, as we are about to call it directly.
+ trap - ERR INT
- pl_mkfedora $root $options
+ # Clean up
+ mkfedora_cleanup
+
+ return 0
+}
+
+function pl_root_tune_image () {
+ root=$1; shift
# Disable all services in reference image
chroot $root sh -c "/sbin/chkconfig --list | awk '{ print \$1 }' | xargs -i /sbin/chkconfig {} off"
# This tells the Boot Manager that it is okay to update
# /etc/resolv.conf and /etc/hosts whenever the network configuration
# changes. Users are free to delete this file.
- touch $vroot/etc/AUTO_UPDATE_NET_FILES
+ touch $root/etc/AUTO_UPDATE_NET_FILES
}
# Move specified directories out of a src tree into a dst tree, and
fi
rm -rf ${root}/${datadir}
mkdir -p $(dirname ${root}/${datadir})
- ln -nsf /${store}/${datadir} ${root}/${datadir}
+ ln -nsf ${store}/${datadir} ${root}/${datadir}
done
}
(cd $root && tar cpf - .) | (cd $tmp && tar xpf -)
# Unmount it
- umount -l $tmp
+ umount $tmp
rmdir $tmp
trap - ERR INT
}
done
}
+########## .pkgs format
+# comments start with a # - this is needed only if you use a keyword in a comment
+
+function pl_getPkgsAttribute () {
+ keyword=$1; shift
+ file=$1; shift
+ # remove any initial white spaces from the result
+ grep -v '^#' $file | grep --regexp="^${keyword}:" | sed -e "s,${keyword}:,," -e "s,^[[:space:]][[:space:]]*,,"
+}
+
+# for a given keyword like 'package' :
+# we support fcdistro-dependant format, for tokens (pkgname) without whitespace
+# you can e.g. use
+# package: pkg1 .. pkgn
+# package+f8: pkg1 .. pkgn
+# package-f8: pkg1 .. pkgn
+#
+# values can contain @arch@, @fcdistro@ or @pldistro@ that are replaced with the current values
+#
+# Usage: pl_parsePkgs keyword [-a arch] fcdistro pldistro pkgs-file[..s]
+# the reason for the -a option is for when we build the build vserver itself; in this case
+# pl_DISTRO_ARCH is the one we obtain from the root context, and that's wrong
+# specify -sa arch AFTER keyword, so as to keep pl_getPackages and pl_getGroups simple
+#
+function pl_parsePkgs () {
+
+ target_arch=$pl_DISTRO_ARCH
+ keyword=$1;shift
+ [ "$1" == "-a" ] && { shift; target_arch="$1"; shift; }
+ fcdistro=$1; shift
+ pldistro=$1; shift
+ # remaining arguments are paths to the pkgs files
+
+ # grab regular descriptions
+ all=$(grep -v '^#' "$@" | grep --regexp="^${keyword}:" | sed -e "s,${keyword}:,,")
+ # grab additions
+ add=$(grep -v '^#' "$@" | grep --regexp="^${keyword}+${fcdistro}:" | sed -e "s,${keyword}+${fcdistro}:,,")
+ # grab exclusions
+ sub=$(grep -v '^#' "$@" | grep --regexp="^${keyword}-${fcdistro}:" | sed -e "s,${keyword}-${fcdistro}:,,")
+
+ for rpm in $all $add; do
+ for exclude in $sub; do
+ [ "$rpm" = "$exclude" ] && continue 2
+ done
+ echo "${rpm} " | sed -e "s,@arch@,${target_arch},g" -e "s,@fcdistro@,$fcdistro,g" -e "s,@pldistro@,$pldistro,g"
+ done
+ return 0
+}
+
+# usage: pl_getPackages [-a arch] fcdistro pldistro pkg-file[..s]
+function pl_getPackages() { pl_parsePkgs package "$@" ; }
+function pl_getGroups() { pl_parsePkgs group "$@" ; }
+
+# locates a pldistro-dependant file
+# tries first in build/<pldistro>/, then in build/planetlab/
+function pl_locateDistroFile () {
+ builddir=$1; shift
+ pldistro=$1; shift
+ pkgsfile=$1; shift
+
+ pkgspath=""
+ # locate it
+ paths="$builddir/config.$pldistro/$pkgsfile $builddir/config.planetlab/$pkgsfile"
+ for path in $paths; do
+ if [ -f $path ] ; then
+ pkgspath=$path
+ break
+ fi
+ done
+ if [ -z "$pkgspath" ] ; then
+ echo 1>&2 "pl_locateDistroFile - in $(pwd) : cannot locate $pkgsfile in $builddir"
+ echo 1>&2 "candidates were $paths"
+ echo "not-found-by-pl_locateDistroFile"
+ return 1
+ else
+ echo 1>&2 "pl_locateDistroFile: using $pkgspath"
+ echo $pkgspath
+ return 0
+ fi
+}
+
+function yumgroups_from_pkgs () {
+ builddir=$1; shift
+ pldistro=$1; shift
+ fcdistro=$1; shift
+ pkgsnames=$@
+
+ sedargs="-e s,@FCDISTRO@,$fcdistro,g"
+
+ cat <<__header
+<?xml version="1.0"?>
+<!DOCTYPE comps PUBLIC "-//Red Hat, Inc.//DTD Comps info//EN" "comps.dtd">
+<comps>
+__header
+
+ for pkgsname in $pkgsnames; do
+ pkgsfile=$(pl_locateDistroFile $builddir $pldistro $pkgsname)
+ packages=$(pl_getPackages $fcdistro $pldistro $pkgsfile)
+
+ groupname=$(pl_getPkgsAttribute groupname $pkgsfile | sed $sedargs)
+ groupdesc=$(pl_getPkgsAttribute groupdesc $pkgsfile | sed $sedargs)
+
+ if [ -z "$groupname" -o -z "$groupdesc" ] ; then
+ echo "Cannot find groupname: and groupdesc: in $pkgsfile -- skipped" 1>&2
+ continue
+ fi
+
+ cat << __group_header
+ <group>
+ <id>$(echo $groupname|tr A-Z a-z)</id>
+ <name>$groupname</name>
+ <description>$groupdesc</description>
+ <uservisible>true</uservisible>
+ <packagelist>
+__group_header
+ for package in $packages; do
+ echo "<packagereq type=\"mandatory\">$package</packagereq>"
+ done
+ cat << __group_footer
+ </packagelist>
+ </group>
+__group_footer
+ done
+cat <<__footer
+</comps>
+__footer
+}
+
+
+function build_fetch () {
+ curl --fail --silent --max-time 60 --output /dev/null "$1"
+}
+
+# tries to compute a valid yum.conf for that pldistro from the template in mirroring/
+# returns 0 and writes <dest_yumconf> on success
+# returns 1 on failure, in which case <dest_yumconf> is deleted
+function yumconf_mirrors () {
+ dest_yumconf=$1; shift
+ builddir=$1; shift
+ fcdistro=$1; shift
+ exclude_line="$1" ; shift
+ mirrors="$@"
+
+ template=$builddir/mirroring/$fcdistro/yum.repos.d/building.repo.in
+
+ if [ ! -f $template ] ; then
+ echo "yumconf_mirrors: cannot locate template $template"
+ rm -f $dest_yumconf
+ return 1
+ fi
+
+ for mirror in $mirrors; do
+ if yumconf_mirror $dest_yumconf $template "$exclude_line" $mirror; then
+ return 0
+ fi
+ done
+ rm -f $dest_yumconf
+ return 1
+}
+
+# computes a yum.conf from the template, and checks that all baseurl defined in there are valid repos
+# returns 0 on success and 1 on failure
+function yumconf_mirror () {
+ dest_yumconf=$1; shift
+ template=$1; shift
+ exclude_line="$1" ; shift
+ mirror=$1; shift
+
+ sed -e "s,@MIRRORURL@,$mirror,g" \
+ -e "/baseurl=/i\\
+$exclude_line" $template > $dest_yumconf
+
+ # capture all lines defining baseurl
+ baseurl_defs=$(grep '^baseurl=' $dest_yumconf)
+ if [ -z "$baseurl_defs" ] ; then
+ return 1
+ fi
+
+ for baseurl_def in $baseurl_defs; do
+ baseurl=$(echo $baseurl_def | sed \
+ -e s,baseurl=,, \
+ -e 's,$basearch,'"$pl_DISTRO_ARCH",g)
+ repomd=$baseurl/repodata/repomd.xml
+
+ echo "* Trying to fetch $repomd"
+ if ! build_fetch $repomd ; then
+ echo "* Failed to fetch $repomd"
+ return 1
+ fi
+ done
+ echo "* Selected mirror $mirror"
+ return 0
+}
+
+# from a yum.conf as generated above, computes the (first) gpgkey url
+function yumconf_gpgkey () {
+ dest_yumconf=$1; shift
+
+ first_line=$(grep '^gpgkey=' $dest_yumconf | head -1)
+ values=$(echo $first_line | sed -e s,gpgkey=,,)
+ value=$(echo $values | awk '{print $1;}' | sed -e 's,$basearch,'"$pl_DISTRO_ARCH",g)
+ [ -n "$value" ] || return 1
+ echo $value
+ return 0
+}