torch-pi-gen/scripts/common

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log (){
date +"[%T] $@" | tee -a "${LOG_FILE}"
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}
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export -f log
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bootstrap(){
local ARCH
ARCH=$(dpkg --print-architecture)
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export http_proxy=${APT_PROXY}
if [ "$ARCH" != "armhf" ]; then
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local BOOTSTRAP_CMD=qemu-debootstrap
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else
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local BOOTSTRAP_CMD=debootstrap
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fi
capsh --drop=cap_setfcap -- -c "${BOOTSTRAP_CMD} --components=main,contrib,non-free \
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--arch armhf\
--no-check-gpg \
$1 $2 $3"
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}
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export -f bootstrap
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copy_previous(){
if [ ! -d "${PREV_ROOTFS_DIR}" ]; then
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echo "Previous stage rootfs not found"
false
fi
mkdir -p "${ROOTFS_DIR}"
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rsync -aHAXx --exclude var/cache/apt/archives "${PREV_ROOTFS_DIR}/" "${ROOTFS_DIR}/"
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}
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export -f copy_previous
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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)
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for loc in $LOCS; do
umount "$loc"
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done
done
}
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export -f unmount
unmount_image(){
sync
sleep 1
local LOOP_DEVICES
LOOP_DEVICES=$(losetup -j "${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}"
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fi
done
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}
export -f unmount_image
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on_chroot() {
if ! mount | grep -q "$(realpath "${ROOTFS_DIR}"/proc)"; then
mount -t proc proc "${ROOTFS_DIR}/proc"
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fi
if ! mount | grep -q "$(realpath "${ROOTFS_DIR}"/dev)"; then
mount --bind /dev "${ROOTFS_DIR}/dev"
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fi
if ! mount | grep -q "$(realpath "${ROOTFS_DIR}"/dev/pts)"; then
mount --bind /dev/pts "${ROOTFS_DIR}/dev/pts"
fi
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if ! mount | grep -q "$(realpath "${ROOTFS_DIR}"/sys)"; then
mount --bind /sys "${ROOTFS_DIR}/sys"
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fi
capsh --drop=cap_setfcap "--chroot=${ROOTFS_DIR}/" -- "$@"
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}
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export -f on_chroot
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update_issue() {
local GIT_HASH
GIT_HASH=$(git rev-parse HEAD)
echo -e "Raspberry Pi reference ${IMG_DATE}\nGenerated using pi-gen, https://github.com/RPi-Distro/pi-gen, ${GIT_HASH}, ${1}" > "${ROOTFS_DIR}/etc/rpi-issue"
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}
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export -f update_issue