#!/bin/sh
# Shell script to be run as cron job to copy npm logs to backup location.

# Stop npm service to ensure logs are not being written to while copying.
systemctl stop npm

# Only copy new/changed log files to avoid re-copying existing backups.
# --ignore-existing: never overwrite files already present in the destination.
# -c: compare files by checksum so matching files are not re-written.
# -P: preserve permissions + show progress.
rsync -qcP --ignore-existing /data/logs/*access* /data/logs/*error* /mnt/backups/npm/

# Start npm service again after copying logs.
systemctl start npm