entrypoint

#!/bin/bash

. functions.sh

if [[ -n "$DB_DUMP_DEBUG" ]]; then
  set -x
fi

# get all variables from environment variables or files (e.g. VARIABLE_NAME_FILE)
# (setting defaults happens here, too)
file_env "DB_SERVER"
file_env "DB_PORT"
file_env "DB_USER"
file_env "DB_PASS"
file_env "DB_NAMES"

file_env "DB_DUMP_DEBUG"
file_env "DB_DUMP_TARGET" "/backup"
file_env "DB_DUMP_KEEP_PERMISSIONS" "true"

file_env "AWS_ENDPOINT_URL"
file_env "AWS_ENDPOINT_OPT"
file_env "AWS_ACCESS_KEY_ID"
file_env "AWS_SECRET_ACCESS_KEY"
file_env "AWS_DEFAULT_REGION"


if [[ -n "$DB_DUMP_DEBUG" ]]; then
  set -x
fi

# ensure it is defined
MYSQLDUMP_OPTS=${MYSQLDUMP_OPTS:-}

# login credentials
if [ -n "${DB_USER}" ]; then
  DBUSER="-u${DB_USER}"
else
  DBUSER=
fi
if [ -n "${DB_PASS}" ]; then
  DBPASS="-p${DB_PASS}"
else
  DBPASS=
fi

# database server
if [ -z "${DB_SERVER}" ]; then
  echo "DB_SERVER variable is required. Exiting."
  exit 1
fi
# database port
if [ -z "${DB_PORT}" ]; then
  echo "DB_PORT not provided, defaulting to 3306"
  DB_PORT=3306
fi



# temporary dump dir
TMPDIR=/tmp/backups

# this is global, so has to be set outside
declare -A uri

# wait for the next time to start a backup
# for debugging
echo Starting at $(date)


exit_code=0

# make sure the directory exists
mkdir -p $TMPDIR

do_dump

[ $? -ne 0 ] && exit_code=1

# remove lingering file
/bin/rm ${TMPDIR}/${SOURCE}

exit $exit_code