#! /bin/sh
#

set -x
if [ "$#" -eq 0 ] || [ "$#" -gt 1 ]; then
  echo takes only one argument
  exit 1
fi

if [ ! -e "${1}" ]; then
  echo cannot find "${1}"
  exit 1
fi

# shellcheck source=./env_files/checkdiff-example.env
. "${1}"

remote_copy_path=$(mktemp -d)
rsync \
  --archive \
  --checksum \
  --human-readable \
  "${REMOTE_SSH_STRING}":"${REMOTE_ROOT_PATH}${FOLDER_PATH}/" \
  "${remote_copy_path}"

local_copy_path=$(mktemp -d)
rsync \
  --archive \
  --checksum \
  --exclude-from="${EXCLUDEFILE_PATH}" \
  --human-readable \
  "${LOCAL_ROOT_PATH}${FOLDER_PATH}/" \
  "${local_copy_path}"

kdiff3 "${local_copy_path}" "${remote_copy_path}"