#!/bin/bash
# Backup script for Gitea in a Kubernetes cluster

# `gitea dump` is a mess that we should not touch. We write our own backup scripts instead.

PROGRAM_NAME='backup_gitea'
printlog () {
    printf '%s: %s\n' "${PROGRAM_NAME}" "${1}"
}

BACKUP_DEST='/mnt/PRIVATE_DOCS/BACKUPS/gitea'
PASSFILE='./gitea_pass.txt'

# Retrieve container names
base_container="$( docker ps --format '{{.Names}}' | grep hugit-gitea_hugit-gitea )"
database_container="$( docker ps --format '{{.Names}}' | grep hugit-postgresql_hugit-postgresql )"

# Abort entire script if any command fails
set -e

# Enable maintenance mode
printlog 'Flushing queues'
docker exec "${base_container}" gitea manager flush-queues
# Pause queues
# TODO

# Backup the database
printlog 'Backing up database'
database_backupfile="gitea-sqlbkp_$( date +'%Y%m%d' ).bak"
internal_database_backupfile="/tmp/${database_backupfile}"
docker exec --env-file "${PASSFILE}" "${database_container}" pg_dump 'gitea' -cwv -h 'localhost' -U 'gitea' -f "${internal_database_backupfile}"
docker cp "${database_container}":"${internal_database_backupfile}" "${BACKUP_DEST}"

# Backup files
printlog 'Backing up files'
tar czvf "${BACKUP_DEST}/gitea-data_$( date +'%Y%m%d' ).tar.gz" -C "/mnt/APPS/hugit"

# Disable maintenance mode
# TODO

# Double check
# gitea doctor --all --log-file /tmp/doctor.log
# TODO

printlog 'Done'