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# Copyright 2009, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import os
import sys
def FindOnPage(input_api, url, regex):
"""Given a url, download it and find the part matching a regex.
Arguments:
input_api: the limited set of input modules allowed in presubmit
url: url to download
regex: regex to match on
Returns:
A string extracted from the match, or None if no match or error.
"""
try:
connection = input_api.urllib2.urlopen(url)
text = connection.read()
connection.close()
match = input_api.re.search(regex, text)
if match:
return match.group(1)
else:
return None
except IOError, e:
print str(e)
return None
def CheckTreeIsOpen(input_api, output_api, url, url_text):
"""Similar to the one in presubmit_canned_checks except it shows an helpful
status text instead.
Arguments:
input_api: the limited set of input modules allowed in presubmit
output_api: the limited set of output modules allowed in presubmit
url: url to get numerical tree status from
url_text: url to get human readable tree status from
regex: regex to match on
Returns:
A list of presubmit warnings.
"""
assert(input_api.is_committing)
# Check if tree is open.
status = FindOnPage(input_api, url, '([0-9]+)')
if status and int(status):
return []
# Try to find out what failed.
message = FindOnPage(input_api, url_text,
r'\<div class\="Notice"\>(.*)\<\/div\>')
if message:
return [output_api.PresubmitPromptWarning("The tree is closed.",
long_text=message.strip())]
# Report unknown reason.
return [output_api.PresubmitPromptWarning(
"The tree status can't be checked.")]
def CheckChangeOnCommit(input_api, output_api):
report = []
report.extend(CheckTreeIsOpen(
input_api, output_api,
'http://o3d-status.appspot.com/status',
'http://o3d-status.appspot.com/current'))
return report
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