log (){ date +"[%T] $*" | tee -a "${LOG_FILE}" } export -f log bootstrap(){ local BOOTSTRAP_CMD=debootstrap local BOOTSTRAP_ARGS=() export http_proxy=${APT_PROXY} if [ "$(dpkg --print-architecture)" != "armhf" ] && [ "$(dpkg --print-architecture)" != "aarch64" ]; then BOOTSTRAP_CMD=qemu-debootstrap fi BOOTSTRAP_ARGS+=(--arch armhf) BOOTSTRAP_ARGS+=(--components "main,contrib,non-free") BOOTSTRAP_ARGS+=(--keyring "${STAGE_DIR}/files/raspberrypi.gpg") BOOTSTRAP_ARGS+=("$@") printf -v BOOTSTRAP_STR '%q ' "${BOOTSTRAP_ARGS[@]}" setarch linux32 capsh --drop=cap_setfcap -- -c "'${BOOTSTRAP_CMD}' $BOOTSTRAP_STR" || true if [ -d "$2/debootstrap" ]; then rmdir "$2/debootstrap" fi } export -f bootstrap copy_previous(){ if [ ! -d "${PREV_ROOTFS_DIR}" ]; then echo "Previous stage rootfs not found" false fi mkdir -p "${ROOTFS_DIR}" rsync -aHAXx --exclude var/cache/apt/archives "${PREV_ROOTFS_DIR}/" "${ROOTFS_DIR}/" } export -f copy_previous unmount(){ if [ -z "$1" ]; then DIR=$PWD else DIR=$1 fi while mount | grep -q "$DIR"; do local LOCS LOCS=$(mount | grep "$DIR" | cut -f 3 -d ' ' | sort -r) for loc in $LOCS; do umount "$loc" done done } export -f unmount unmount_image(){ sync sleep 1 local LOOP_DEVICES LOOP_DEVICES=$(losetup --list | grep "$(basename "${1}")" | cut -f1 -d' ') for LOOP_DEV in ${LOOP_DEVICES}; do if [ -n "${LOOP_DEV}" ]; then local MOUNTED_DIR MOUNTED_DIR=$(mount | grep "$(basename "${LOOP_DEV}")" | head -n 1 | cut -f 3 -d ' ') if [ -n "${MOUNTED_DIR}" ] && [ "${MOUNTED_DIR}" != "/" ]; then unmount "$(dirname "${MOUNTED_DIR}")" fi sleep 1 losetup -d "${LOOP_DEV}" fi done } export -f unmount_image on_chroot() { if ! mount | grep -q "$(realpath "${ROOTFS_DIR}"/proc)"; then mount -t proc proc "${ROOTFS_DIR}/proc" fi if ! mount | grep -q "$(realpath "${ROOTFS_DIR}"/dev)"; then mount --bind /dev "${ROOTFS_DIR}/dev" fi if ! mount | grep -q "$(realpath "${ROOTFS_DIR}"/dev/pts)"; then mount --bind /dev/pts "${ROOTFS_DIR}/dev/pts" fi if ! mount | grep -q "$(realpath "${ROOTFS_DIR}"/sys)"; then mount --bind /sys "${ROOTFS_DIR}/sys" fi setarch linux32 capsh --drop=cap_setfcap "--chroot=${ROOTFS_DIR}/" -- -e "$@" } export -f on_chroot update_issue() { echo -e "Raspberry Pi reference ${IMG_DATE}\nGenerated using ${PI_GEN}, ${PI_GEN_REPO}, ${GIT_HASH}, ${1}" > "${ROOTFS_DIR}/etc/rpi-issue" } export -f update_issue