317378f742
The latest release of pep8 adds stricter rules for extraneous whitespace within lines. This patch also addresses these new violations acoss the codebase. Change-Id: Ib7e50281870473df1704ed50868c5c2e26bdb02e
129 lines
3.6 KiB
Python
129 lines
3.6 KiB
Python
#!/usr/bin/env python
|
|
|
|
# Copyright 2012 OpenStack, LLC
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
"""
|
|
This script is designed to cleanup any VHDs (and their descendents) which have
|
|
a bad parent pointer.
|
|
|
|
The script needs to be run in the dom0 of the affected host.
|
|
|
|
The available actions are:
|
|
|
|
- print: display the filenames of the affected VHDs
|
|
- delete: remove the affected VHDs
|
|
- move: move the affected VHDs out of the SR into another directory
|
|
"""
|
|
import glob
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
|
|
|
|
class ExecutionFailed(Exception):
|
|
def __init__(self, returncode, stdout, stderr, max_stream_length=32):
|
|
self.returncode = returncode
|
|
self.stdout = stdout[:max_stream_length]
|
|
self.stderr = stderr[:max_stream_length]
|
|
self.max_stream_length = max_stream_length
|
|
|
|
def __repr__(self):
|
|
return "<ExecutionFailed returncode=%s out='%s' stderr='%s'>" % (
|
|
self.returncode, self.stdout, self.stderr)
|
|
|
|
__str__ = __repr__
|
|
|
|
|
|
def execute(cmd, ok_exit_codes=None):
|
|
if ok_exit_codes is None:
|
|
ok_exit_codes = [0]
|
|
|
|
proc = subprocess.Popen(
|
|
cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
|
|
(stdout, stderr) = proc.communicate()
|
|
|
|
if proc.returncode not in ok_exit_codes:
|
|
raise ExecutionFailed(proc.returncode, stdout, stderr)
|
|
|
|
return proc.returncode, stdout, stderr
|
|
|
|
|
|
def usage():
|
|
print "usage: %s <SR PATH> <print|delete|move>" % sys.argv[0]
|
|
sys.exit(1)
|
|
|
|
|
|
def main():
|
|
if len(sys.argv) < 3:
|
|
usage()
|
|
|
|
sr_path = sys.argv[1]
|
|
action = sys.argv[2]
|
|
|
|
if action not in ('print', 'delete', 'move'):
|
|
usage()
|
|
|
|
if action == 'move':
|
|
if len(sys.argv) < 4:
|
|
print "error: must specify where to move bad VHDs"
|
|
sys.exit(1)
|
|
|
|
bad_vhd_path = sys.argv[3]
|
|
if not os.path.exists(bad_vhd_path):
|
|
os.makedirs(bad_vhd_path)
|
|
|
|
bad_leaves = []
|
|
descendents = {}
|
|
|
|
for fname in glob.glob(os.path.join(sr_path, "*.vhd")):
|
|
(returncode, stdout, stderr) = execute(
|
|
['vhd-util', 'query', '-n', fname, '-p'], ok_exit_codes=[0, 22])
|
|
|
|
stdout = stdout.strip()
|
|
|
|
if stdout.endswith('.vhd'):
|
|
try:
|
|
descendents[stdout].append(fname)
|
|
except KeyError:
|
|
descendents[stdout] = [fname]
|
|
elif 'query failed' in stdout:
|
|
bad_leaves.append(fname)
|
|
|
|
def walk_vhds(root):
|
|
yield root
|
|
if root in descendents:
|
|
for child in descendents[root]:
|
|
for vhd in walk_vhds(child):
|
|
yield vhd
|
|
|
|
for bad_leaf in bad_leaves:
|
|
for bad_vhd in walk_vhds(bad_leaf):
|
|
print bad_vhd
|
|
if action == "print":
|
|
pass
|
|
elif action == "delete":
|
|
os.unlink(bad_vhd)
|
|
elif action == "move":
|
|
new_path = os.path.join(bad_vhd_path,
|
|
os.path.basename(bad_vhd))
|
|
os.rename(bad_vhd, new_path)
|
|
else:
|
|
raise Exception("invalid action %s" % action)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|