#!/usr/bin/env bash

set -euo pipefail

ARGS=(
    # Show readable progress in log
    --verbose
    --human-readable
    --progress
    # Have a one-to-one copy
    --archive
    --compress
    --recursive
    --delete
    # Configure ssh client
    --rsh "ssh -p ${SYNC_PORT:-22} -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null"
)

eval "$(ssh-agent)"
SSHPASS="${SYNC_PASSPHRASE:-}" sshpass -P 'passphrase' -v -e ssh-add <(echo "${SYNC_KEY}")

if [ -n "${SYNC_DRY_RUN:-}" ]; then
    ARGS+=(--dry-run)
fi

# shellcheck disable=2086
# FIXME: have a safer way to allow globbing the source
rsync \
    "${ARGS[@]}" \
    ${SYNC_SOURCE} \
    "${SYNC_USERNAME}@${SYNC_HOST}:${SYNC_TARGET}"