nixos-server-conf/backup_forgejo.sh
2025-04-02 08:57:33 +02:00

119 lines
2.8 KiB
Bash

#!/bin/bash
version="0.1"
backup_path=none
backup_user=none
server=none
ssh_port=none
mail_config=none
mail=none
usage()
{
echo "[-v] [-h] [-d directory] [-u user] [-s server] [-p port] [-a mail-config] [-m mail]"
}
version()
{
echo "backup script: $version"
}
get_ops()
{
while getopts duspam: opt; do
case $opt in
d) backup_path=$OPTARG ;;
u) backup_user=$OPTARG ;;
s) server=$OPTARG ;;
p) ssh_port=$OPTARG ;;
a) mail_config=$OPTARG ;;
m) mail=$OPTARG ;;
*) echo 'error in command line parsing' >&2
exit 1
esac
done
}
get_ops $*
if [ "$backup_path" = "none" ]; then
echo "missing backup path";
exit 1
fi
if [ "$backup_user" = "none" ]; then
echo "missing backup user";
exit 1
fi
if [ "$server" = "none" ]; then
echo "missing backup server address";
exit 1
fi
if [ "$ssh_port" = "none" ]; then
echo "missing backup server port";
exit 1
fi
# make sure we are in the correct dir (locally)
cd $backup_path
mkdir -p backups
outfile="backups/backup_$(date +%Y_%m_%d).zip"
# result flags
success=true
failure_reason="Unknown."
# create backup
forgejo dump -c /etc/forgejo/app.ini -f $outfile
# check for success
if [ $? -ne 0 ]; then
failure_reason="Failed to create forgejo backup."
echo $failure_reason
success=false
fi
# query size of output file
outfile_size=$(ls -l $outfile | cut -d ' ' -f5 | numfmt --to iec)
backup_dir_size=0
# copy backup to backup server
if [ "$success" = true ] ; then
# check if ssh files are present (went missing in the past)
if [[ -f ~/.ssh/id_rsa && -f ~/.ssh/id_rsa.pub ]]; then
# simple scp to backup server
scp -P $ssh_port $outfile $backup_user@$server:$backup_path
scp_return=$?
echo scp code $scp_return
# check for success
if [ $scp_return -eq 0 ]; then
rm $outfile
backup_dir_size=$(ssh -n $backup_user@$server -p $ssh_port "ls -l $backup_path" | awk '{sum += $5} END {print sum}' | numfmt --to iec)
success=true
else
failure_reason="scp failed."
success=false
fi
else
failure_reason="Missing rsa file."
echo $failure_reason
success=false
fi
fi
echo $success
if [ "$mail_config" != "none" ] && [ "$mail" != "none" ]; then
# send info mail to configured mail address
if [ "$success" = true ] ; then
echo "reporting success"
printf "Subject: Forgejo Backup - Success\n\nBackup ran successfully. Backup size: $outfile_size. Backup dir size: $backup_dir_size" | msmtp -a $mail_config $mail
else
echo "reporting failure"
printf "Subject: Forgejo Backup - Failure\n\n$failure_reason" | msmtp -a $mail_config $mail
fi
fi