#!/bin/sh
set -e

MACHINE_ID=$(cat /etc/machine-id)
CURRENT_LOGS=/var/log/journal/${MACHINE_ID}

# Cleanup
if [ ! -d ${CURRENT_LOGS} ]; then
    rm -rf /var/log/journal/*
    exit 0
fi

# Loop all logs folder and move
for log_folder in /var/log/journal/*; do
    # Not a log folder
    if [ ! -d ${log_folder} ]; then
        continue
    fi
    
    # Current log folder
    if (echo ${log_folder} | grep ${MACHINE_ID}); then
        continue
    fi
    
    mv ${log_folder}/* ${CURRENT_LOGS}/
    rm -rf ${log_folder}
done

journalctl --vacuum-size=20M