trabajo-afectivo/contrib/backup/functions

#!/bin/bash
#
# zammad backup script functions
#

function get_backup_date () {
  TIMESTAMP="$(date +'%Y%m%d%H%M%S')"

  if [ "${DEBUG}" == "yes" ]; then
    echo "timestamp is ${TIMESTAMP}"
  fi
}

function delete_old_backups () {
  test -d ${BACKUP_DIR} && find ${BACKUP_DIR}/*_zammad_*.gz -type f -mtime +${HOLD_DAYS} -exec rm -r \;
}

function get_db_credentials () {
  DB_ADAPTER="$(grep 'adapter:' < ${ZAMMAD_DIR}/${DATABASE_CONFIG} | sed -e 's/.*adapter:\(\| \)//g')"
  DB_NAME="$(grep 'database:' < ${ZAMMAD_DIR}/${DATABASE_CONFIG} | sed -e 's/.*database:\(\| \) //g')"
  DB_USER="$(grep 'username:' < ${ZAMMAD_DIR}/${DATABASE_CONFIG} | sed -e 's/.*username:\(\| \)//g')"
  DB_PASS="$(grep 'password:' < ${ZAMMAD_DIR}/${DATABASE_CONFIG} | sed -e 's/.*password:\(\| \)//g')"

  if [ "${DEBUG}" == "yes" ]; then
    echo "adapter=${DB_ADAPTER} dbname=${DB_NAME} dbuser=${DB_USER} dbpass=${DB_PASS}"
  fi
}

function backup_dir_create () {
  test -d ${BACKUP_DIR} || mkdir -p ${BACKUP_DIR}

  if [ "${DEBUG}" == "yes" ]; then
    echo "backup dir is ${BACKUP_DIR}"
  fi
}

function backup_files () {
  tar -czf ${BACKUP_DIR}/${TIMESTAMP}_zammad_files.tar.gz ${ZAMMAD_DIR}
}

function backup_db () {
  if [ "${DB_ADAPTER}" == "mysql2" ]; then
    mysqldump --opt --single-transaction -u${DB_USER} -p${DB_PASS} ${DB_NAME} | gzip > ${BACKUP_DIR}/${TIMESTAMP}_zammad_db.mysql.gz
  elif [ "${DB_ADAPTER}" == "postgresql" ]; then
    su -c "pg_dump ${DB_NAME} | gzip > ${BACKUP_DIR}/${TIMESTAMP}_zammad_db.psql.gz" postgres
  else
    echo "ADAPTER not found. if its sqlite backup is already saved in filebackup"
  fi
}

function check_database_config_exists () {
  if [ -f ${ZAMMAD_DIR}/${DATABASE_CONFIG} ]; then
    get_db_credentials
  else
    echo "${ZAMMAD_DIR}/${DATABASE_CONFIG} is missing. is zammad configured yet?"
    exit 1
  fi
}

function restore_warning () {
  echo -e "The restore will delete your current config and database!\nBe sure to have a backup available!\n"
  echo -e "Enter 'yes' if you want to proceed!"
  read -s CHOOSE_RESTORE

  if [ "${CHOOSE_RESTORE}" != "yes" ]; then
    echo "Restore aborted!"
    exit 1
  fi
}

function get_restore_dates () {
  RESTORE_FILE_DATES="$(find ${BACKUP_DIR} -type f -iname '*_zammad_files.tar.gz' | sed -e "s#${BACKUP_DIR}/##g" -e "s#_zammad_files.tar.gz##g")"

  if [ "${ADAPTER}" == "postgresql" ]; then
    DB_FILE_EXT="psql"
  elif [ "${ADAPTER}" == "mysql2" ]; then
    DB_FILE_EXT="mysql"
  fi

  RESTORE_DB_DATES="$(find ${BACKUP_DIR} -type f -iname "*_zammad_db.${DB_FILE_EXT}.gz" | sed -e "s#${BACKUP_DIR}/##g" -e "s#_zammad_db.${DB_FILE_EXT}.gz##g")"
}

function choose_restore_date () {
  echo "Enter file date to restore: ${RESTORE_FILE_DATES}"
  read -s RESTORE_FILE_DATE
  if [ ! -f "${BACKUP_DIR}/${RESTORE_FILE_DATE}_zammad_files.tar.gz" ];then
    echo "File ${BACKUP_DIR}/${RESTORE_FILE_DATE}_zammad_files.tar.gz does not exist!\nRestore aborted!"
    exit 1
  fi

  echo "Enter db date to restore: ${RESTORE_DB_DATES}"
  read -s RESTORE_DB_DATE
  if [ ! -f "${BACKUP_DIR}/${RESTORE_DB_DATE}_zammad_db.${DB_FILE_EXT}.gz" ];then
    echo "File ${BACKUP_DIR}/${RESTORE_DB_DATE}_zammad_files.tar.gz does not exist!\nRestore aborted!"
    exit 1
  fi
}

function detect_initcmd () {
  if [ -n "$(which systemctl 2> /dev/null)" ]; then
    INIT_CMD="systemctl"
  elif [ -n "$(which initctl 2> /dev/null)" ]; then
    INIT_CMD="initctl"
  else
    function sysvinit () {
      service $2 $1
    }
    INIT_CMD="sysvinit"
  fi

  if [ "${DOCKER}" == "yes" ]; then
    INIT_CMD="initctl"
  fi

  if [ "${DEBUG}" == "yes" ]; then
    echo "INIT CMD = ${INIT_CMD}"
  fi
}

function start_zammad () {
  echo "# Starting Zammad"
  ${INIT_CMD} start zammad
}

function stop_zammad () {
  echo "# Stopping Zammad"
  ${INIT_CMD} stop zammad
}

function delete_current_files () {
  test -d ${ZAMMAD_DIR} && rm -rf ${ZAMMAD_DIR}
}

function restore_zammad () {
  tar -C / -xzf ${BACKUP_DIR}/${RESTORE_FILE_DATE}_zammad_files.tar.gz

  if [ "${ADAPTER}" == "postgresql" ]; then
    gunzip ${BACKUP_DIR}/${RESTORE_DB_DATE}_zammad_db.${DB_FILE_EXT}.gz | pg_restore -c ${DB_NAME}
  elif [ "${ADAPTER}" == "mysql2" ]; then
    gunzip ${BACKUP_DIR}/${RESTORE_DB_DATE}_zammad_db.${DB_FILE_EXT}.gz | mysql -u${DB_USER} -p${DB_PASS} ${DB_NAME}
  fi
}

function restore_message () {
    echo "Zammad restored!"
}