entrypoint

#!/bin/bash
set -euo pipefail

echo "Checking configured repository '${RESTIC_REPOSITORY}' ..."
if restic cat config > /dev/null; then
  echo "Repository found."
else
  echo "Could not access the configured repository. Trying to initialize (in case it has not been initialized yet) ..."
  if restic init; then
    echo "Repository successfully initialized."
  else
    if [ "${SKIP_INIT_CHECK:-}" == "true" ]; then
      echo "Initialization failed. Ignoring errors because SKIP_INIT_CHECK is set in your configuration."
    else
      echo "Initialization failed. Please see error messages above and check your configuration. Exiting."
      exit 1
    fi
  fi
fi
echo -e "\n"

if [[ $# -gt 0 ]]; then
  exec restic "$@"
else
  if [[ -n "${BACKUP_CRON:-}" ]] && [[ -n "${PRUNE_CRON:-}" ]]; then
    >&2 echo "Environment variables BACKUP_CRON and PRUNE_CRON are mutually exclusive. Please fix your configuration. Exiting."
    exit 1
  fi
  if [[ -n "${BACKUP_CRON:-}" ]]; then
    if [ "${RUN_ON_STARTUP:-}" == "true" ]; then
      echo "Executing backup on startup ..."
      /usr/local/bin/backup
    fi
    echo "Scheduling backup job according to cron expression."
    exec go-cron "$BACKUP_CRON" /usr/local/bin/backup
  fi
  if [[ -n "${PRUNE_CRON:-}" ]]; then
    if [ "${RUN_ON_STARTUP:-}" == "true" ]; then
      echo "Executing prune job on startup ..."
      /usr/local/bin/prune
    fi
    echo "Scheduling prune job according to cron expression."
    exec go-cron "$PRUNE_CRON" /usr/local/bin/prune
  fi
  >&2 echo "No valid operating mode configured! Exiting."
  exit 1
fi