prepare-chroot-base

#!/bin/sh
# vim: set ts=4 sw=4 sts=4 et :
### prepare-chroot-base : Create a (any) chroot instance of Archlinux
### May be called from ./scripts/01_install_core.sh or ./prepare-chroot-archlinux
echo "--> Archlinux prepare-chroot-base"

INSTALLDIR="$1"
DISTRO="$2"  # aka elsewhere as $DIST

BOOTSTRAP_DIR="${CACHEDIR}/bootstrap"
PACMAN_MIRROR="${PACMAN_MIRROR:-mirror.rackspace.com}"

PACMAN_CACHE_DIR="${CACHEDIR}/pacman_cache"
export PACMAN_CACHE_DIR

set -e
[ "$VERBOSE" -ge 2 -o "$DEBUG" -gt 0 ] && set -x

if ! [ -f "${BOOTSTRAP_DIR}/.extracted" -a -d "${CACHEDIR}/pacman_cache" ]; then
    # XXX: Potential infinite loop in certain error conditions?
    echo "  --> Bootstrap chroot environment may not exist, calling 00_prepare.sh..."
    "${SCRIPTSDIR}/00_prepare.sh"
fi

# XXX: Also run if .extracted is newer than .prepared_base ??
if [ -f "${INSTALLDIR}/.prepared_base" ]; then
    echo "  --> NB: INSTALLDIR '${INSTALLDIR}' already appears to have an environment; will leave as-is!"
    exit 0
fi

echo "  --> Binding INSTALLDIR '${INSTALLDIR}' to bootstrap environment..."
mount --bind "$INSTALLDIR" "${BOOTSTRAP_DIR}/mnt"

# TODO: This doesn't seem super elegant
echo "  --> Setting pacman mirror as '$PACMAN_MIRROR'..."
sed "s|#Server = http://${PACMAN_MIRROR}/|Server = http://${PACMAN_MIRROR}/|" \
    < "${CACHEDIR}/bootstrap/etc/pacman.d/mirrorlist.dist" \
    > "${CACHEDIR}/bootstrap/etc/pacman.d/mirrorlist"
cp /etc/resolv.conf "${BOOTSTRAP_DIR}/etc/"

echo "  --> Initializing pacman keychain..."
"${SCRIPTSDIR}/arch-chroot-lite" "$BOOTSTRAP_DIR" /bin/pacman-key --init
"${SCRIPTSDIR}/arch-chroot-lite" "$BOOTSTRAP_DIR" /bin/pacman-key --populate

echo "  --> Installing core pacman packages..."
export PACMAN_CACHE_MOUNT_DIR="${BOOTSTRAP_DIR}/mnt/var/cache/pacman"
"${SCRIPTSDIR}/arch-chroot-lite" "$BOOTSTRAP_DIR" /bin/sh -c \
    "http_proxy='${REPO_PROXY}' pacstrap /mnt base"
unset PACMAN_CACHE_MOUNT_DIR

echo "  --> Removing non-required linux kernel (can be added manually through a package)..."
"${SCRIPTSDIR}/arch-chroot-lite" "$INSTALLDIR" /bin/pacman --noconfirm -Rsc linux

echo "  --> Unbinding INSTALLDIR..."
umount ${BOOTSTRAP_DIR}/mnt

touch "${INSTALLDIR}/.prepared_base"