nanopi-openwrt/scripts/autoupdate-bash.sh

#!/bin/bash
set -e $1

opkg update || true
function proceed_command () {
	if ! command -v $1 &> /dev/null; then opkg install --force-overwrite $1; fi
	if ! command -v $1 &> /dev/null; then echo -e '\e[91m'$1'命令不可用，升级中止！\e[0m' && exit 1; fi
}
proceed_command pv
proceed_command fdisk
proceed_command sfdisk
proceed_command losetup
proceed_command resize2fs
opkg install coreutils-truncate || true

board_id=$(cat /etc/board.json | jsonfilter -e '@["model"].id' | sed 's/friendly.*,nanopi-//;s/xunlong,orangepi-//;s/^r1s-h5$/r1s/;s/^r1$/r1s-h3/;s/^r1-plus$/r1p/;s/default-string-default-string/x86/')
mount -t tmpfs -o remount,size=850m tmpfs /tmp
rm -rf /tmp/upg && mkdir /tmp/upg && cd /tmp/upg

md5sum=`wget https://ghproxy.com/https://github.com/klever1988/nanopi-openwrt/releases/download/$(date +%Y-%m-%d)/$board_id$ver.img.gz -O- | tee >(gzip -dc>$board_id.img) | md5sum | awk '{print $1}'`
if [ "$md5sum" != "d41d8cd98f00b204e9800998ecf8427e" ]; then
	wget https://ghproxy.com/https://github.com/klever1988/nanopi-openwrt/releases/download/$(date +%Y-%m-%d)/$board_id$ver.img.gz.md5 -O md5sum.txt
	echo -e '\e[92m今天固件已下载，准备解压\e[0m'
else
	echo -e '\e[91m今天的固件还没更新，尝试下载昨天的固件\e[0m'
	md5sum=`wget https://ghproxy.com/https://github.com/klever1988/nanopi-openwrt/releases/download/$(date -d "@$(( $(busybox date +%s) - 86400))" +%Y-%m-%d)/$board_id$ver.img.gz -O- | tee >(gzip -dc>$board_id.img) | md5sum | awk '{print $1}'`
	if [ "$md5sum" != "d41d8cd98f00b204e9800998ecf8427e" ]; then
		wget https://ghproxy.com/https://github.com/klever1988/nanopi-openwrt/releases/download/$(date -d "@$(( $(busybox date +%s) - 86400))" +%Y-%m-%d)/$board_id$ver.img.gz.md5 -O md5sum.txt
		echo -e '\e[92m昨天的固件已下载，准备解压\e[0m'
	else
		echo -e '\e[91m没找到最新的固件，脚本退出\e[0m'
		exit 1
	fi
fi

md5r=`awk '{print $1}' md5sum.txt`
if [ $md5r != $md5sum ]; then
	echo -e '\e[91m固件HASH值匹配失败，脚本退出\e[0m'
	exit 1
fi

mv $board_id.img FriendlyWrt.img
[ $board_id = 'x86' ] && drive='sda' || drive='mmcblk0'
bs=`expr $(cat /sys/block/$drive/size) \* 512`
truncate -s $bs FriendlyWrt.img || ../truncate -s $bs FriendlyWrt.img
echo ", +" | sfdisk -N 2 FriendlyWrt.img

lodev=$(losetup -f)
losetup -P $lodev FriendlyWrt.img
mkdir -p /mnt/img
mount -t ext4 ${lodev}p2 /mnt/img
echo -e '\e[92m解压已完成，准备编辑镜像文件，写入备份信息\e[0m'
sleep 10
cd /mnt/img
sysupgrade -b back.tar.gz
tar zxf back.tar.gz
opkg list-installed | grep "luci-i18n\|luci-app" | cut -d\  -f1 > packages_needed
if ! grep -q macaddr /etc/config/network; then
	echo -e '\e[91m注意：由于已知的问题，“网络接口”配置无法继承，重启后需要重新设置WAN拨号和LAN网段信息\e[0m'
	rm etc/config/network;
fi
echo -e '\e[92m备份文件已经写入，移除挂载\e[0m'
#rm back.tar.gz
cd /tmp/upg
umount /mnt/img

sleep 5
if cat /proc/mounts | grep -q ${lodev}p1; then umount ${lodev}p1; fi
if cat /proc/mounts | grep -q ${lodev}p2; then umount ${lodev}p2; fi
e2fsck -yf ${lodev}p2 || true
resize2fs ${lodev}p2

losetup -d $lodev
echo -e '\e[92m正在打包...\e[0m'
echo -e '\e[92m开始写入，请勿中断...\e[0m'
if [ -f FriendlyWrt.img ]; then
	echo 1 > /proc/sys/kernel/sysrq
	echo u > /proc/sysrq-trigger && umount / || true
	#pv FriendlyWrt.img | dd of=/dev/mmcblk0 conv=fsync
	dd if=FriendlyWrt.img of=/dev/$drive conv=sparse status=progress bs=1M
	echo -e '\e[92m刷机完毕，正在重启...\e[0m'
	echo b > /proc/sysrq-trigger
fi