#! /usr/bin/bash

if [[ $UID != 0 ]]; then
  echo "Please run this using sudo"
  exit
fi

prefix=backup_Gitea
targetFolder=/mnt/data0/
target=gitea

#Database info
dbname="giteadb"
dbhost="localhost"
dbuser="gitea"
dbpw="gitea"


fileName=$prefix-$(date +'%Y%m%d').tar.gz
dir=$(pwd)

echo "====== backup Gitea from $targetFolder/$target"
echo "                         /etc/gitea/app.ini"
echo "                         /etc/systemd/system/gitea.service"

echo "====== check number of old backup"
nBackup=$(ls -1 $prefix-* | wc -l)
echo "number of backup : ${nBackup}"
if [[ $nBackup -gt 3 ]]; then
   oldFile=$(ls -t $prefix-* | tail -1)
   echo "removing the old backup $oldFile"
   rm -f $oldFile
fi

echo "====== dump the database to $targetFolder/$target"
cd $targetFolder/$target
mysqldump --user=$dbuser --password=$dbpw --add-drop-table $dbname > dbcontent.sql


echo "====== cp /etc/gitea/app.ini to /mnt/data0/gitea"
cp /etc/gitea/app.ini .

echo "====== cp /etc/systemd/system/gitea.service to /mnt/data0/gitea"
cp /etc/systemd/system/gitea.service .

echo "====== cd to /mnt/data0"

cd $targetFolder
tar -cf - $target -P | pv -s $(du -sb $target | awk '{print $1}') | gzip > $fileName

ls -l $fileName
mv $fileName $dir/.

echo "backup saved to ${fileName}"

echo "===== ssh to newton.physics.fsu.edu"
cd $dir
scp -rp $fileName ryan@128.186.111.52:/backupHome/.