#! /bin/sh

if [ -z ${GITEA_DIR} ]; then
    echo Variable GITEA_DIR is not specified
    exit 1
fi

BACKUP=`date +%Y-%m-%d_%H`.tar.gz

echo >>log
date >>log

if [ ! -e snapshot ]; then
  BACKUP=`date +%Y-%m-%d_%H_full`.tar.gz
fi

# If tar fails, go to code block
set -o pipefail

tar c -z \
  -f $BACKUP \
  -g snapshot \
  ${GITEA_DIR} \
  2>>log >/dev/null || {
  echo Fail to backup latest tar file | tee -a log
  exit 1
}

echo Succesfully backup >>log