:::bash
rsync -og --chown=user:group -e "ssh -p $(SSH_PORT)" -P -rvzc \
 --delete $(OUTPUTDIR)/ \
$(SSH_USER)@$(SSH_HOST):$(SSH_TARGET_DIR) \
--cvs-exclude --exclude=/.well-known

-c, --checksum: skip based on checksum, not mod-time & size

-v, --verbose: increase verbosity

-r, --recursive: recurse into directories

-z, --compress: compress file data during the transfer

-P, --progress --partial:

--delete: delete extraneous files from dest dirs

-C, --cvs-exclude: auto-ignore files in the same way CVS does

-o, --owner: preserve owner (super-user only)

-g, --group: preserve group

--chown=USER:GROUP: simple username/groupname mapping

-e, --rsh=COMMAND: specify the remote shell to use