multistrap/embootstrap

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#!/bin/bash
set -e
# embootstrap -- create a bootstrap for emdebian builds
#
# Note that this script controls tarballs for empdebuild and emsandbox
# pass --cross to set an emsandbox tarball.
#
# Copyright (C) 2007-2008 Neil Williams <codehelp@debian.org>
#
# This package is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
CWD=`pwd`
# test for sudo
# make sure sudo is in use.
# bash cannot seem to do this when set -e is enabled
# because grep returns non-zero on a non-match
# so I use perl. :-)
ISROOT=`perl -e '$e=\`printenv\`; ($e =~ /\nUSER=root\n/) ? print "yes" : print "no";'`
if [ $ISROOT == "no" ] ; then
echo "embootstrap needs to be run under sudo or as root."
exit 2
fi
. /usr/lib/pbuilder/pbuilder-modules
. /usr/lib/pbuilder/pbuilder-buildpackage-funcs
. /usr/share/emdebian-tools/empbuilderlib
# move to our own function file later.
# Need support for create (this script), update (unpack base.tgz) and login
# (sudo chroot /bin/sh) as well as the final empdebuild (emsource,emdebuild)
# in a separate script.
# Currently, this script needs user intervention to build the chroot:
# emsetup asks for confirmation and apt-get install wants GnuPG verification.
# This script will concentrate only on creating and updating the chroot.
# Parameters.
# WORK=location of this script.
# MIRROR=the Debian primary mirror that will replace the default debootstrap mirror
# (ftp.debian.org is not a primary and only supports 2 architectures).
# TODO: needs command line options to set the rest of these parameters.
# Note --oknodo will cause failures, see #426877
WORK=$CWD
get_work_dir
BUILDPLACE=$WORKDIR
BASETGZ="$BUILDPLACE/emdebian.tgz"
BASETGZ=`echo $BASETGZ | tr -s \/`
BUILDPLACE="$BUILDPLACE/pbuilder"
# tidy up // to /
BUILDPLACE=`echo $BUILDPLACE | tr -s \/`
MIRROR=
# don't die if the user has set 'None' for the dpkg-cross default.
get_default_arch
BUILDPLACE="${WORKDIR}/pbuilder/build"
if [ -d $BUILDPLACE ]; then
rm -rf $BUILDPLACE/*
fi
if [ ! -d $BUILDPLACE ]; then
mkdir -p $BUILDPLACE
fi
BASETGZ="${WORKDIR}/emdebian.tgz"
SUITE=unstable
CROSS=x
MACHINE=x
VARIANT=x
MACHINEPATH="${WORKDIR}/machine/"
USEDEVPTS="yes"
USEPROC="yes"
while [ -n "$1" ]; do
case "$1" in
-a|--arch)
shift
ARCH=$1
# chomp the argument to --arch
shift
;;
--testing|testing)
shift;
BASETGZ="${WORKDIR}/emdebian-testing.tgz"
SUITE=testing
echo "Creating an embootstrap testing chroot"
;;
# only for emsandbox support, empdebuild does not pass -S
-S|--suite)
shift
SUITE=$1
shift
;;
--cross|cross)
shift;
BASETGZ="${WORKDIR}/emdebian-$ARCH.tgz"
CROSS=$ARCH
echo "Creating an embootstrap $ARCH chroot"
;;
--script)
shift
CMD_SCRIPT=$1
if [ ! -f $CMD_SCRIPT ]; then
echo "Cannot find suite script '$CMD_SCRIPT'."
exit;
fi
echo "Using $CMD_SCRIPT"
shift
;;
--machine-path)
shift
MACHINEPATH=$1
shift
;;
--machine)
shift
MACHINE=$1
VARIANT=default
if [ ! -d "${MACHINEPATH}/$MACHINE" ]; then
echo "Cannot find '${MACHINEPATH}/$MACHINE'."
exit
fi
shift
;;
--variant)
shift
VARIANT=$1
if [ ! $MACHINE ]; then
echo "Variant specified without a machine."
exit
fi
if [ ! -d "${MACHINEPATH}/$MACHINE/$VARIANT" ]; then
echo "Cannot find '${MACHINEPATH}/$MACHINE/$VARIANT'."
exit
fi
shift
;;
*)
echo "Unrecognised option: $1"
exit;
;;
esac
done
if [ "$ARCH" = "None.\n" ]; then
echo $ARCH
echo Use the --arch option or dpkg-reconfigure dpkg-cross
exit
fi
# include packages.conf if --machine used.
if [ "$MACHINE" != "x" -a "$VARIANT" != "x" -a $CROSS -a $CROSS = $ARCH ]; then
# sets INCLUDE, SCRIPT, MIRROR etc.
if [ -f ${MACHINEPATH}/$MACHINE/$VARIANT/packages.conf ]; then
. ${MACHINEPATH}/$MACHINE/$VARIANT/packages.conf
fi
echo "Using $MACHINE:$VARIANT"
if [ $TARBALL_NAME ]; then
echo " -> creating ${WORKDIR}/${TARBALL_NAME}"
BASETGZ="${WORKDIR}/${TARBALL_NAME}"
fi
fi
checkarch
HOST_ARCH=`dpkg-architecture -qDEB_HOST_ARCH`
# let the command line override the packages.conf
if [ ! $SCRIPT ]; then
SCRIPT=$CMD_SCRIPT
fi
# if neither command line nor packages.conf have a script set, use default.
if [ ! $SCRIPT ]; then
SCRIPT="/usr/share/emdebian-tools/emdebian.crossd"
fi
if [ $CROSS -a $CROSS = $ARCH ]; then
echo "Building $ARCH chroot on $HOST_ARCH to install $ARCH packages."
else
echo "Building $HOST_ARCH chroot on $HOST_ARCH to cross-build $ARCH packages."
fi
if [ -f ${BASETGZ} ]; then
echo "${BASETGZ} already exists! Aborting . . ."
exit 1;
fi
echo "Checking for a user writeable tree in $BUILDPLACE"
check_dirs
echo " -> running debootstrap"
export LANG=C
export LC_ALL=C
# debootstrap 1.0.7 has moved
WORK="/usr/share/debootstrap/"
# handle old versions of debootstrap so that we can migrate into testing.
if [ -f "/usr/lib/debootstrap/functions" ]; then
WORK="/usr/lib/debootstrap/";
fi
FOREIGN=
INC=
if [ $CROSS -a $CROSS = $ARCH ]; then
echo " -> cross detected, using foreign."
FOREIGN="--foreign"
if [ ! $MIRROR ]; then
MIRROR="http://www.emdebian.org/crush/"
fi
if [ ! $PROXY ]; then
PROXY="http://www.emdebian.org/crush/"
fi
if [ $INCLUDE ]; then
INC="--include=$INCLUDE"
fi
# if SUITE is empty in packages.conf, reset the default
if [ ! $SUITE ]; then
SUITE=unstable
fi
BUILDD=$SCRIPT
if [ ! -f ${WORKDIR}/stamp-debootstrap ]; then
echo "DEBOOTSTRAP_DIR=$WORK debootstrap $INC --verbose $FOREIGN --arch ${ARCH} $SUITE $BUILDPLACE $PROXY $BUILDD"
DEBOOTSTRAP_DIR=$WORK debootstrap ${INC} --verbose $FOREIGN --arch ${ARCH} $SUITE $BUILDPLACE $PROXY $BUILDD
echo " -> debootstrap stage complete"
echo " -> Checking for machine:variant hooks"
# hooks
if [ $INC ]; then
echo "${INC}" >> $BUILDPLACE/debootstrap/machineincludes
fi
if [ -f ${MACHINEPATH}/$MACHINE/$VARIANT/setup.sh ]; then
if [ ! -z "$EXTRA" ]; then
if [ -e $EXTRA ]; then
cp $EXTRA $BUILDPLACE/
fi
fi
echo " -> Running $MACHINE/$VARIANT/setup.sh $BUILDPLACE $ARCH"
sh ${MACHINEPATH}/$MACHINE/$VARIANT/setup.sh $BUILDPLACE $ARCH
fi
if [ -f ${MACHINEPATH}/$MACHINE/$VARIANT/config.sh ]; then
echo " -> Copying config.sh for $MACHINE:$VARIANT into tarball"
mkdir -p $BUILDPLACE/machine/
cp ${MACHINEPATH}/$MACHINE/$VARIANT/config.sh $BUILDPLACE/machine/
fi
touch ${WORKDIR}/stamp-debootstrap
fi # end of $CROSS
else # else if not $CROSS
# TODO this should be configurable - emdebian-tools will add a primary later.
# copy or use the ~/.apt-cross/sources.foo. files.
if [ ! $MIRROR ]; then
URL=`perl -e "use Emdebian::Tools; use Config::Auto; print &get_primary;"`
if [ ! -z "$URL" ]; then
MIRROR="http://${URL}/debian"
fi
fi
if [ ! $MIRROR ]; then
MIRROR="http://ftp.fr.debian.org/debian/"
fi
BUILDD=/usr/share/emdebian-tools/emdebian.buildd
if [ ! -f ${WORKDIR}/stamp-debootstrap ]; then
echo "DEBOOTSTRAP_DIR=$WORK debootstrap --verbose $SUITE $BUILDPLACE $MIRROR $BUILDD"
DEBOOTSTRAP_DIR=$WORK debootstrap --verbose $SUITE $BUILDPLACE $MIRROR $BUILDD
touch ${WORKDIR}/stamp-debootstrap
fi
fi
mkdir -p "$BUILDPLACE/tmp/buildd"
copy_host_configuration
# emdebian-tools will be reconfigured later.
# ensure src is available if not emsandbox
echo " -> Installing apt-lines for $MIRROR"
mkdir -p "$BUILDPLACE/etc/apt/sources.list.d/"
rm -f "$BUILDPLACE"/etc/apt/sources.list
if [ $CROSS -a $CROSS = $ARCH ]; then
cat >> "$BUILDPLACE"/etc/apt/sources.list.d/emdebian.sources.list << EOF
#emdebian target repository : default source list
# created by emsandbox
deb $MIRROR $SUITE main
#deb-src $MIRROR $SUITE main
EOF
else
cat >> "$BUILDPLACE"/etc/apt/sources.list << EOF
deb $MIRROR $SUITE main
deb-src $MIRROR $SUITE main
EOF
fi
if [ $CROSS -a $CROSS = $ARCH ]; then
# copy our secure apt key into the chroot for apt-key
cp /usr/share/emdebian-tools/emdebian-archive-keyring.gpg $BUILDPLACE/
# copy in our install helper
cp /usr/share/emdebian-tools/emsecondstage $BUILDPLACE/
# only executable by root to allow debootstrap to work properly.
chmod 744 $BUILDPLACE/emsecondstage
rm -f $BUILDPLACE/debootstrap/debootstrap.log
# empty if using unpack but should still exist.
save_aptcache
else
echo "Refreshing the base.tgz "
echo " -> upgrading packages"
mountproc
chroot $BUILDPLACE /usr/bin/apt-get update
recover_aptcache
chroot $BUILDPLACE /usr/bin/apt-get -y --force-yes dist-upgrade
echo " -> adding the Emdebian repository key"
chroot $BUILDPLACE mkdir -p /home/$SUDO_USER/.gnupg
chroot $BUILDPLACE mkdir -p /home/$SUDO_USER/.dpkg-cross
if [ -f /home/$SUDO_USER/.devscripts ]; then
cp /home/$SUDO_USER/.devscripts $BUILDPLACE/home/$SUDO_USER/.devscripts
fi
cp /usr/share/emdebian-tools/emdebian-archive-keyring.gpg $BUILDPLACE/
chroot $BUILDPLACE apt-key add emdebian-archive-keyring.gpg
if [ -f emdebian-archive-keyring.gpg ]; then
rm emdebian-archive-keyring.gpg
fi
echo " -> updating /etc/hosts"
cp /etc/hosts $BUILDPLACE/etc/hosts
# emdebian.buildd installs emdebian-tools which sets up apt for the emdebian repository
echo " -> updating the apt cache"
chroot "$BUILDPLACE" /usr/bin/apt-get update
# upgrade emdebian-tools and apt-cross before running emsetup
echo " -> upgrading emdebian-tools and apt-cross"
chroot "$BUILDPLACE" /usr/bin/apt-get -y --force-yes dist-upgrade
echo " -> updating apt-cross cache"
DPKG_CROSS="/home/$SUDO_USER/.dpkg-cross"
if [ ! -f $DPKG_CROSS/apt.conf-${SUITE} ]; then
chroot $BUILDPLACE /usr/bin/apt-cross -a $ARCH -S $SUITE -u
else
echo " -> copying existing apt-cross cache"
cp $DPKG_CROSS/apt.conf-$SUITE $BUILDPLACE/$DPKG_CROSS/
cp $DPKG_CROSS/sources.$SUITE $BUILDPLACE/$DPKG_CROSS/
cp $DPKG_CROSS/status-$SUITE $BUILDPLACE/$DPKG_CROSS/
cp -r $DPKG_CROSS/$SUITE $BUILDPLACE/$DPKG_CROSS/
fi
echo " -> running emsetup"
if chroot "$BUILDPLACE" /usr/bin/emsetup -v -a $ARCH --yes; then
:
else
echo " -> emsetup failed"
if [ "${LOGIN_AFTER_FAIL}" = "yes" ]; then
echo " -> Logging into the chroot"
echo " -> Build directory: /trunk/$SVN"
echobacktime
chroot $BUILDPLACE /bin/sh
save_aptcache
echo " -> emsetup failed"
chroot $BUILDPLACE /usr/bin/apt-get clean
umountproc
create_emdebiantgz
cleanbuildplace
rm ${WORKDIR}/stamp-debootstrap
exit 1;
fi
save_aptcache
umountproc
chroot $BUILDPLACE /usr/bin/apt-get clean
create_emdebiantgz
cleanbuildplace
rm ${WORKDIR}/stamp-debootstrap
echobacktime
echo " -> emsetup failed: exiting with an error!"
echo " Try --login-after-fail"
exit 1;
fi
umountproc
save_aptcache
chroot $BUILDPLACE /usr/bin/apt-get clean
fi
create_emdebiantgz
cleanbuildplace
rm ${WORKDIR}/stamp-debootstrap