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#!/usr/bin/python
"""A crontab script to delete night test data."""
__author__ = 'shenhan@google.com (Han Shen)'
import datetime
import optparse
import os
import re
import sys
from utils import command_executer
from utils import constants
from 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 = optparse.OptionParser(
description='Automatically delete nightly test data directories.',
usage='auto_delete_nightly_test_data.py options')
parser.add_option('-d', '--dry_run', dest='dry_run',
default=False, action='store_true',
help='Only print command line, do not execute anything.')
parser.add_option('--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 CleanChromeOsTmpAndImages():
"""Delete temporaries, images under crostc/chromeos."""
chromeos_chroot_tmp = os.path.join(constants.CROSTC_WORKSPACE,
'chromeos', 'chroot', 'tmp')
ce = command_executer.GetCommandExecuter()
# Clean chroot/tmp/test_that_* and chroot/tmp/tmpxxxxxx, that were last
# accessed more than 24 hours ago.
cmd = (r'find {0} -maxdepth 1 -type d '
r'\( -name "test_that_*" -o -regex "{0}/tmp......" \) '
r'-amin +1440 '
r'-exec bash -c "echo rm -fr {{}}" \; '
r'-exec bash -c "rm -fr {{}}" \;').format(chromeos_chroot_tmp)
rv = ce.RunCommand(cmd, print_to_console=False)
if rv == 0:
print ('Successfully cleaned chromeos tree tmp directory '
'"{0}".'.format(chromeos_chroot_tmp))
else:
print ('Some directories were not removed under chromeos tree '
'tmp directory -"{0}".'.format(chromeos_chroot_tmp))
# Clean image tar files, which were last accessed 1 hour ago and clean image
# bin files that were last accessed more than 24 hours ago.
cmd = ('find {0}/*-release -type f '
r'\( -name "chromiumos_test_image.tar" -amin +60 -o '
r' -name "chromiumos_test_image.tar.xz" -amin +60 -o '
r' -name "chromiumos_test_image.bin" -amin +1440 \) '
r'-exec bash -c "echo rm -f {{}}" \; '
r'-exec bash -c "rm -f {{}}" \;').format(chromeos_chroot_tmp)
rv2 = ce.RunCommand(cmd, print_to_console=False)
if rv2 == 0:
print 'Successfully cleaned chromeos images.'
else:
print 'Some chromeos images were not removed.'
return rv + rv2
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()
return rv + rv2
if __name__ == '__main__':
retval = Main(sys.argv)
sys.exit(retval)
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