flectra/addons/point_of_sale/tools/posbox/posbox_create_image.sh

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#!/usr/bin/env bash
set -o errexit
set -o nounset
set -o pipefail
# set -o xtrace
if [[ $EUID -ne 0 ]]; then
echo "This script must be run as root"
exit 1
fi
file_exists() {
[[ -f $1 ]];
}
require_command () {
type "$1" &> /dev/null || { echo "Command $1 is missing. Install it e.g. with 'apt-get install $1'. Aborting." >&2; exit 1; }
}
require_command kpartx
require_command qemu-system-arm
require_command zerofree
__dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
__base="$(basename ${__file} .sh)"
MOUNT_POINT="${__dir}/root_mount"
OVERWRITE_FILES_BEFORE_INIT_DIR="${__dir}/overwrite_before_init"
OVERWRITE_FILES_AFTER_INIT_DIR="${__dir}/overwrite_after_init"
if [ ! -f kernel-qemu ] || ! file_exists *raspbian*.img ; then
./posbox_download_images.sh
fi
cp -a *raspbian*.img posbox.img
CLONE_DIR="${OVERWRITE_FILES_BEFORE_INIT_DIR}/home/pi/odoo"
rm -rf "${CLONE_DIR}"
if [ ! -d $CLONE_DIR ]; then
echo "Clone Github repo"
mkdir -p "${CLONE_DIR}"
git clone -b 8.0 --no-local --no-checkout --depth 1 https://github.com/odoo/odoo.git "${CLONE_DIR}"
cd "${CLONE_DIR}"
git config core.sparsecheckout true
echo "addons/web
addons/hw_*
addons/point_of_sale/tools/posbox/configuration
openerp/
odoo.py" | tee --append .git/info/sparse-checkout > /dev/null
git read-tree -mu HEAD
fi
cd "${__dir}"
USR_BIN="${OVERWRITE_FILES_BEFORE_INIT_DIR}/usr/bin/"
mkdir -p "${USR_BIN}"
cd "/tmp"
curl 'https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-arm.zip' > ngrok.zip
unzip ngrok.zip
rm ngrok.zip
cd "${__dir}"
mv /tmp/ngrok "${USR_BIN}"
# zero pad the image to be around 3.5 GiB, by default the image is only ~1.3 GiB
echo "Enlarging the image..."
dd if=/dev/zero bs=1M count=2048 >> posbox.img
# resize partition table
echo "Fdisking"
START_OF_ROOT_PARTITION=$(fdisk -l posbox.img | tail -n 1 | awk '{print $2}')
(echo 'p'; # print
echo 'd'; # delete
echo '2'; # second partition
echo 'n'; # create new partition
echo 'p'; # primary
echo '2'; # number 2
echo "${START_OF_ROOT_PARTITION}"; # starting at previous offset
echo ''; # ending at default (fdisk should propose max)
echo 'p'; # print
echo 'w') | fdisk posbox.img # write and quit
LOOP_MAPPER_PATH=$(kpartx -avs posbox.img | tail -n 1 | cut -d ' ' -f 3)
LOOP_MAPPER_PATH="/dev/mapper/${LOOP_MAPPER_PATH}"
sleep 5
# resize filesystem
e2fsck -f "${LOOP_MAPPER_PATH}" # resize2fs requires clean fs
resize2fs "${LOOP_MAPPER_PATH}"
mkdir "${MOUNT_POINT}"
mount "${LOOP_MAPPER_PATH}" "${MOUNT_POINT}"
# 'overlay' the overwrite directory onto the mounted image filesystem
cp -a "${OVERWRITE_FILES_BEFORE_INIT_DIR}"/* "${MOUNT_POINT}"
# get rid of the git clone
rm -rf "${CLONE_DIR}"
# and the ngrok usr/bin
rm -rf "${OVERWRITE_FILES_BEFORE_INIT_DIR}/usr"
# get rid of the mount, we have to remount it anyway because we have
# to "refresh" the filesystem after qemu modified it
sleep 2
umount "${MOUNT_POINT}"
# from http://paulscott.co.za/blog/full-raspberry-pi-raspbian-emulation-with-qemu/
# ssh pi@localhost -p10022
QEMU_OPTS=(-kernel kernel-qemu -cpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append 'root=/dev/sda2 rootfstype=ext4 rw' -hda posbox.img -net user,hostfwd=tcp::10022-:22,hostfwd=tcp::18069-:8069 -net nic)
if [ -z ${DISPLAY:-} ] ; then
QEMU_OPTS+=(-nographic)
fi
qemu-system-arm "${QEMU_OPTS[@]}"
mount "${LOOP_MAPPER_PATH}" "${MOUNT_POINT}"
cp -av "${OVERWRITE_FILES_AFTER_INIT_DIR}"/* "${MOUNT_POINT}"
# cleanup
sleep 2
umount "${MOUNT_POINT}"
rm -r "${MOUNT_POINT}"
echo "Running zerofree..."
zerofree -v "${LOOP_MAPPER_PATH}" || true
kpartx -d posbox.img