#!/bin/bash
#
# Builds a Fedora Core 4 build environment suitable for rebuilding all
# PlanetLab software, including MyPLC. Requires access to Fedora Core
# 4 base, updates, and extras repositories.
#
# Mark Huang <mlhuang@cs.princeton.edu>
# Copyright (C) 2006 The Trustees of Princeton University
#
# $Id: mkbuild,v 1.2.4.1 2007/08/30 16:39:00 mef Exp $
#

export PATH=/sbin:/bin:/usr/sbin:/usr/bin

. build.common

# Verbosity
verbose=0

# Default yum repositories to try
mirror=

# Yum groups to install
grouplist=(
"Development Tools"
"Development Libraries"
# In particular, compat-gcc-32 for kernel-2.6.12 builds
"Legacy Software Development"
)

# Packages to install
packagelist=(
# kernel
gnupg
diffutils
# util-vserver
vconfig
iptables
wget
beecrypt-devel
tetex-latex
gcc-c++
# ulogd
libpcap
# iptables
linuxdoc-tools
# vserver-reference
sudo
yum
createrepo
# mysql
gperf
time
# bootmanager
sharutils
# bootcd
nasm
mkisofs
dosfstools
# myplc
rsync
)

# Tag to export
tag=HEAD

usage()
{
    echo "Usage: mkbuild [OPTION]... [basedir]"
    echo "	-l url		Fedora mirror location"
    echo "	-r release	Fedora release number"
    echo "	-a arch		Fedora architecture"
    echo "	-g group1 -g group2 ..."
    echo "			Yumgroups to install. Defaults:"
    for group in "${grouplist[@]}" ; do
	echo "			$group"
    done
    echo "	-p package1 -p package2 ..."
    echo "			Additional packages to install. Defaults:"
    for package in "${packagelist[@]}" ; do
	echo "			$package"
    done
    echo "	-t tag		CVS tag of PlanetLab sources to export (default: $tag)"
    echo "	-v		Be verbose"
    echo "	-h		This message"
    exit 1
}

# Get options
while getopts "kl:g:p:t:vh" opt ; do
    case $opt in
	l)
	    mirror=$OPTARG
	    ;;
	g)
	    grouplist[${#grouplist[*]}]="$OPTARG"
	    ;;
	p)
	    packagelist[${#packagelist[*]}]="$OPTARG"
	    ;;
	t)
	    tag=$OPTARG
	    ;;
	v)
	    verbose=1
	    set -x
	    ;;
	h|*)
	    usage
	    ;;
    esac
done

shift $(($OPTIND - 1))
if [ -n "$1" ] ; then
    # Install in chroot
    mkdir -p "$1"
    vroot=$(cd "$1" && pwd -P)
else
    # Install for real
    vroot=
fi

if [ $UID -ne 0 ] ; then
    echo "Error: You must run this script as root."
    exit 1
fi

exec 3>&1
exec 4>&2
if [ -z "$verbose" ] ; then
    exec 1>/dev/null
    exec 2>/dev/null
fi

# Do not tolerate errors
set -e

if [ -n "$vroot" ] ; then
    # Install in chroot
    if [ $verbose -ne 0 ] ; then
	options="$options -v"
    fi
    if [ -n "$mirror" ] ; then
	options="$options -l \"$mirror\""
    fi
    for group in "${grouplist[@]}" ; do
	options="$options -g \"$group\""
    done
    for package in "${packagelist[@]}" ; do
	options="$options -p \"$package\""
    done

    pl_mkfedora $vroot $options
else
    # Install for real
    echo "* Installing optional packages" >&3
    yum -y install "${packagelist[@]}"

    echo "* Installing optional groups" >&3
    yum -y groupinstall "${grouplist[@]}"
fi

# If a preferred mirror was specified, configure mkfedora to use it
if [ -n "$mirror" ] ; then
    mkdir -p $vroot/etc/planetlab
    echo "PLC_DEVEL_FEDORA_URL=$mirror" >$vroot/etc/planetlab/plc_config
fi

# Install local CVS repository.
echo "* Exporting source code to /cvs" >&3
mkdir -p $vroot/cvs
export CVSROOT=$vroot/cvs
cvs -d $CVSROOT init

tmp=$(mktemp -d /tmp/cvs.XXXXXX)
trap "rm -rf $tmp" ERR
pushd $tmp

# Export source code from cvs.planet-lab.org to /tmp
if [ "$tag" = "HEAD" ] ; then
	date=$(date +%Y-%m-%d)
	cvs_export="cvs -d :pserver:anon@cvs.planet-lab.org:/cvs export -D $date planetlab"
	tag=planetlab-$date
else
	cvs_export="cvs -d :pserver:anon@cvs.planet-lab.org:/cvs export -r $tag planetlab"
fi
$cvs_export

# Import into /cvs/tmp
for dir in * ; do
    pushd $dir
    cvs -d $CVSROOT import -m "$cvs_export" -ko -I ! $dir planetlab $tag
    popd
done

popd
rm -rf $tmp

exit 0