#!/bin/bash -e

PUBLIC=1

if [[ "$1" == "--private" ]]; then
  PUBLIC=
  shift
fi

SRC=$1
DEST=$2

if [[ -z "${SRC}" ]]; then
  echo "syntax: $0 [--private] <src> <dest>"
  exit 1
fi

if [[ -z "${DEST}" ]]; then
  echo "syntax: $0 [--private] <src> <dest>"
  exit 1
fi

if [[ "${DEST:0:5}" == "s3://" ]]; then
  aws s3 sync ${PUBLIC:+--acl public-read} ${SRC} ${DEST}
  exit 0
fi

if [[ "${DEST:0:5}" == "gs://" ]]; then
  bucket=$(echo "${DEST}" | cut -d/ -f1-3)
  acl_flag="${PUBLIC:+-a public-read}"
  # GCS buckets with UBLA enabled error on attempts to set ACLs
  # ref: https://cloud.google.com/storage/docs/uniform-bucket-level-access#enabled
  if gsutil ubla get "${bucket}" | grep -q "Enabled: True" 2>/dev/null; then
    acl_flag=""
  fi
  gsutil -h "Cache-Control:private,max-age=0" rsync -r ${acl_flag} ${SRC} ${DEST}
  exit 0
fi

if [[ "${DEST:0:6}" == "oss://" ]]; then
	aliyun oss cp ${PUBLIC:+--acl public-read} -r -f --include "*" ${SRC}/ ${DEST}
  exit 0
fi

if [[ "${DEST:0:5}" == "do://" ]]; then
  DO_BUCKET=`echo "${DEST}" | cut -c 6-`
  s3cmd put "*" ${SRC}/ s3://$DO_BUCKET --recursive ${PUBLIC:+--acl-public}
  exit 0
fi

echo "Unsupported destination - supports s3://, gs:// and oss:// urls: ${DEST}"
exit 1