init/upstart/test-init/early-failure-cleanup.conf

# Copyright 2020 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 "Clean up after early-failure.conf if a test isn't happening"
author      "chromium-os-dev@chromium.org"

start on stopped crash-boot-collect

task
oom score -100  # This is extremely unlikely to run out of memory

script
  # If there is a crash test in progress, try to wait for it to finish.
  timeout=120
  while [ ${timeout} -gt 0 ] && \
        [ -e /run/crash_reporter/crash-test-in-progress ]; do
    sleep 5
    : $((timeout -= 5))
  done

  # If the test is still in progress, give up.
  if [ -e /run/crash_reporter/crash-test-in-progress ]; then
    logger -t "${UPSTART_JOB}" "Timed out waiting for crash test to finish"
    exit
  fi

  # Now we know there's no crash test in progress, which means that the
  # EarlyCrash test, if it was running, is done.
  # If another crash test starts later, that's okay; it won't need this
  # coreutils crash.

  # Find crashes:
  #  * from 'coreutils'
  #  * from the last 10 minutes
  #  * invoked as 'sleep 10000'
  # And remove them
  find /var/spool/crash/ -maxdepth 1 -name "coreutils.*.meta" -mmin -10 \
      -exec grep -l upload_var_is_early_boot=true {} + | \
  while IFS= read -r file; do
    proclog="${file%.meta}.proclog"

    if grep -q 'sleep 10000' "${proclog}"; then
      base="${file%.meta}"
      logger -t "${UPSTART_JOB}" "Cleaning up files:" "${base}"*
      rm -vf "${base}"* || true
    fi
  done
end script