# Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

description   "Remove all bootstat data except the most recent"
author        "chromium-os-dev@chromium.org"

start on started system-services

script
  # Every time we shut down, we save a log of all the bootstat event
  # files.  To prevent unbounded growth, when we get back here, we
  # remove the data for all but the 50 most recent boots.
  for log in $(ls -t /var/log/metrics/ |
               grep '^shutdown\.[0-9]*$' |
               tail -n +51); do
    rm -rf "/var/log/metrics/${log}" || :
  done
end script