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#!/usr/bin/env python2
"""A crontab script to delete night test data."""
from __future__ import print_function
__author__ = 'shenhan@google.com (Han Shen)'
import argparse
import datetime
import os
import re
import sys
from cros_utils import command_executer
from cros_utils import constants
from cros_utils import misc
DIR_BY_WEEKDAY = ('Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun')
def CleanNumberedDir(s, dry_run=False):
"""Deleted directories under each dated_dir."""
chromeos_dirs = [
os.path.join(s, x) for x in os.listdir(s)
if misc.IsChromeOsTree(os.path.join(s, x))
]
ce = command_executer.GetCommandExecuter(log_level='none')
all_succeeded = True
for cd in chromeos_dirs:
if misc.DeleteChromeOsTree(cd, dry_run=dry_run):
print('Successfully removed chromeos tree "{0}".'.format(cd))
else:
all_succeeded = False
print('Failed to remove chromeos tree "{0}", please check.'.format(cd))
if not all_succeeded:
print('Failed to delete at least one chromeos tree, please check.')
return False
## Now delete the numbered dir Before forcibly removing the directory, just
## check 's' to make sure it is sane. A valid dir to be removed must be
## '/usr/local/google/crostc/(SUN|MON|TUE...|SAT)'.
valid_dir_pattern = (
'^' + constants.CROSTC_WORKSPACE + '/(' + '|'.join(DIR_BY_WEEKDAY) + ')')
if not re.search(valid_dir_pattern, s):
print('Trying to delete an invalid dir "{0}" (must match "{1}"), '
'please check.'.format(s, valid_dir_pattern))
return False
cmd = 'rm -fr {0}'.format(s)
if dry_run:
print(cmd)
else:
if ce.RunCommand(cmd, print_to_console=False, terminated_timeout=480) == 0:
print('Successfully removed "{0}".'.format(s))
else:
all_succeeded = False
print('Failed to remove "{0}", please check.'.format(s))
return all_succeeded
def CleanDatedDir(dated_dir, dry_run=False):
# List subdirs under dir
subdirs = [
os.path.join(dated_dir, x) for x in os.listdir(dated_dir)
if os.path.isdir(os.path.join(dated_dir, x))
]
all_succeeded = True
for s in subdirs:
if not CleanNumberedDir(s, dry_run):
all_succeeded = False
return all_succeeded
def ProcessArguments(argv):
"""Process arguments."""
parser = argparse.ArgumentParser(
description='Automatically delete nightly test data directories.',
usage='auto_delete_nightly_test_data.py options')
parser.add_argument(
'-d',
'--dry_run',
dest='dry_run',
default=False,
action='store_true',
help='Only print command line, do not execute anything.')
parser.add_argument(
'--days_to_preserve',
dest='days_to_preserve',
default=3,
help=('Specify the number of days (not including today),'
' test data generated on these days will *NOT* be '
'deleted. Defaults to 3.'))
options = parser.parse_args(argv)
return options
def CleanChromeOsTmpFiles(chroot_tmp, days_to_preserve, dry_run):
rv = 0
ce = command_executer.GetCommandExecuter()
# Clean chroot/tmp/test_that_* and chroot/tmp/tmpxxxxxx, that were last
# accessed more than specified time.
minutes = 1440 * days_to_preserve
cmd = (r'find {0} -maxdepth 1 -type d '
r'\( -name "test_that_*" -amin +{1} -o '
r' -name "cros-update*" -amin +{1} -o '
r' -regex "{0}/tmp......" -amin +{1} \) '
r'-exec bash -c "echo rm -fr {{}}" \; '
r'-exec bash -c "rm -fr {{}}" \;').format(chroot_tmp, minutes)
if dry_run:
print('Going to execute:\n%s' % cmd)
else:
rv = ce.RunCommand(cmd, print_to_console=False)
if rv == 0:
print('Successfully cleaned chromeos tree tmp directory '
'"{0}".'.format(chroot_tmp))
else:
print('Some directories were not removed under chromeos tree '
'tmp directory -"{0}".'.format(chroot_tmp))
return rv
def CleanChromeOsImageFiles(chroot_tmp, subdir_suffix, days_to_preserve,
dry_run):
rv = 0
rv2 = 0
ce = command_executer.GetCommandExecuter()
minutes = 1440 * days_to_preserve
# Clean image tar files, which were last accessed 1 hour ago and clean image
# bin files that were last accessed more than specified time.
cmd = ('find {0}/*{1} -type f '
r'\( -name "chromiumos_test_image.tar" -amin +60 -o '
r' -name "chromiumos_test_image.tar.xz" -amin +60 -o '
r' -name "chromiumos_test_image.bin" -amin +{2} \) '
r'-exec bash -c "echo rm -f {{}}" \; '
r'-exec bash -c "rm -f {{}}" \;').format(chroot_tmp, subdir_suffix,
minutes)
if dry_run:
print('Going to execute:\n%s' % cmd)
else:
rv2 = ce.RunCommand(cmd, print_to_console=False)
if rv2 == 0:
print('Successfully cleaned chromeos images from '
'"{0}/*{1}".'.format(chroot_tmp, subdir_suffix))
else:
print('Some chromeos images were not removed from '
'"{0}/*{1}".'.format(chroot_tmp, subdir_suffix))
rv += rv2
# Clean autotest files that were last accessed more than specified time.
rv2 = 0
cmd = (r'find {0}/*{1} -maxdepth 2 -type d '
r'\( -name "autotest_files" \) '
r'-amin +{2} '
r'-exec bash -c "echo rm -fr {{}}" \; '
r'-exec bash -c "rm -fr {{}}" \;').format(chroot_tmp, subdir_suffix,
minutes)
if dry_run:
print('Going to execute:\n%s' % cmd)
else:
rv2 = ce.RunCommand(cmd, print_to_console=False)
if rv2 == 0:
print('Successfully cleaned chromeos image autotest directories from '
'"{0}/*{1}".'.format(chroot_tmp, subdir_suffix))
else:
print('Some image autotest directories were not removed from '
'"{0}/*{1}".'.format(chroot_tmp, subdir_suffix))
rv += rv2
return rv
def CleanChromeOsTmpAndImages(days_to_preserve=1, dry_run=False):
"""Delete temporaries, images under crostc/chromeos."""
chromeos_chroot_tmp = os.path.join(constants.CROSTC_WORKSPACE, 'chromeos',
'chroot', 'tmp')
# Clean files in tmp directory
rv = CleanChromeOsTmpFiles(chromeos_chroot_tmp, days_to_preserve, dry_run)
# Clean image files in *-release directories
rv += CleanChromeOsImageFiles(chromeos_chroot_tmp, '-release',
days_to_preserve, dry_run)
# Clean image files in *-pfq directories
rv += CleanChromeOsImageFiles(chromeos_chroot_tmp, '-pfq', days_to_preserve,
dry_run)
return rv
def Main(argv):
"""Delete nightly test data directories, tmps and test images."""
options = ProcessArguments(argv)
# Function 'isoweekday' returns 1(Monday) - 7 (Sunday).
d = datetime.datetime.today().isoweekday()
# We go back 1 week, delete from that day till we are
# options.days_to_preserve away from today.
s = d - 7
e = d - int(options.days_to_preserve)
rv = 0
for i in range(s + 1, e):
if i <= 0:
## Wrap around if index is negative. 6 is from i + 7 - 1, because
## DIR_BY_WEEKDAY starts from 0, while isoweekday is from 1-7.
dated_dir = DIR_BY_WEEKDAY[i + 6]
else:
dated_dir = DIR_BY_WEEKDAY[i - 1]
rv += 0 if CleanDatedDir(
os.path.join(constants.CROSTC_WORKSPACE, dated_dir),
options.dry_run) else 1
## Finally clean temporaries, images under crostc/chromeos
rv2 = CleanChromeOsTmpAndImages(
int(options.days_to_preserve), options.dry_run)
return rv + rv2
if __name__ == '__main__':
retval = Main(sys.argv[1:])
sys.exit(retval)
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