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- log (){
- date +"[%T] $*" | tee -a "${LOG_FILE}"
- }
- export -f log
-
- bootstrap(){
- local BOOTSTRAP_CMD=debootstrap
- local BOOTSTRAP_ARGS=()
-
- export http_proxy=${APT_PROXY}
-
- BOOTSTRAP_ARGS+=(--arch arm64)
- BOOTSTRAP_ARGS+=(--include gnupg)
- BOOTSTRAP_ARGS+=(--components "main,contrib,non-free")
- #BOOTSTRAP_ARGS+=(--keyring "${STAGE_DIR}/files/raspberrypi.gpg")
- BOOTSTRAP_ARGS+=(--exclude=info)
- BOOTSTRAP_ARGS+=(--include=ca-certificates)
- BOOTSTRAP_ARGS+=("$@")
- printf -v BOOTSTRAP_STR '%q ' "${BOOTSTRAP_ARGS[@]}"
-
- capsh $CAPSH_ARG -- -c "'${BOOTSTRAP_CMD}' $BOOTSTRAP_STR" || true
-
- if [ -d "$2/debootstrap" ] && ! rmdir "$2/debootstrap"; then
- cp "$2/debootstrap/debootstrap.log" "${STAGE_WORK_DIR}"
- log "bootstrap failed: please check ${STAGE_WORK_DIR}/debootstrap.log"
- return 1
- fi
- }
- export -f bootstrap
-
- copy_previous(){
- if [ ! -d "${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
- LOOP_DEVICE=$(losetup --list | grep "$1" | cut -f1 -d' ')
- if [ -n "$LOOP_DEVICE" ]; then
- for part in "$LOOP_DEVICE"p*; do
- if DIR=$(findmnt -n -o target -S "$part"); then
- unmount "$DIR"
- fi
- done
- losetup -d "$LOOP_DEVICE"
- fi
- }
- export -f unmount_image
-
- on_chroot() {
- if ! mount | grep -q "$(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 "${ROOTFS_DIR}/sys"
- fi
-
- if ! mount | grep -q "$(realpath "${ROOTFS_DIR}"/run)"; then
- mount -t tmpfs tmpfs "${ROOTFS_DIR}/run"
- fi
-
- if ! mount | grep -q "$(realpath "${ROOTFS_DIR}"/tmp)"; then
- mount -t tmpfs tmpfs "${ROOTFS_DIR}/tmp"
- fi
-
- capsh $CAPSH_ARG "--chroot=${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
-
- ensure_next_loopdev() {
- local loopdev
- loopdev="$(losetup -f)"
- loopmaj="$(echo "$loopdev" | sed -E 's/.*[^0-9]*?([0-9]+)$/\1/')"
- [[ -b "$loopdev" ]] || mknod "$loopdev" b 7 "$loopmaj"
- }
- export -f ensure_next_loopdev
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