自动更新geosite geoip。供其他应用使用，增加了文件大小判断，避免下载了空文件影响程序使用。

auto-update-geodat.sh

#!/bin/sh

################# setup env
# download resource refer:
# https://github.com/Loyalsoldier/geoip
# https://github.com/Loyalsoldier/v2ray-rules-dat
# 使用 https://hub.fastgit.xyz/author/repo 加速
geoip="https://raw.fastgit.org/Loyalsoldier/geoip/release/geoip-only-cn-private.dat"
geosite="https://download.fastgit.org/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geosite.dat"
minip=100000
minisite=4000000

#
tmpip=/tmp/geoip.dat
tmpsite=/tmp/geosite.dat
#
saveip=/opt/etc/mosdns/geoip-only-cn-private.dat
savesite=/opt/etc/mosdns/geosite.dat
################

#wget
echo "downloading...."
wget --no-check-certificate $geoip -O $tmpip      >/dev/null 2>&1
wget --no-check-certificate $geosite -O $tmpsite  >/dev/null 2>&1

#check
sizeip=`ls -l $tmpip | awk '{ print $5 }'`
sizesite=`ls -l $tmpsite | awk '{ print $5 }'`

# mv to saved
if [ $sizeip -gt $minip -a $sizesite -gt $minisite ]; then

echo "passed. restarting."
mv $tmpip   $saveip
mv $tmpsite $savesite
docker restart mosdns

else

echo "task failed."

fi