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#!/usr/bin/env python
# Copyright (c) 2012 The LibYuv Project Authors. All rights reserved.
#
# Use of this source code is governed by a BSD-style license
# that can be found in the LICENSE file in the root of the source
# tree. An additional intellectual property rights grant can be found
# in the file PATENTS. All contributing project authors may
# be found in the AUTHORS file in the root of the source tree.
"""
Copied from Chrome's src/tools/valgrind/memcheck/PRESUBMIT.py
See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
for more details on the presubmit API built into gcl.
"""
import os
import re
import sys
def CheckChange(input_api, output_api):
"""Checks the memcheck suppressions files for bad data."""
# Add the path to the Chrome valgrind dir to the import path:
tools_vg_path = os.path.join(input_api.PresubmitLocalPath(), '..', '..',
'valgrind')
sys.path.append(tools_vg_path)
import suppressions
sup_regex = re.compile('suppressions.*\.txt$')
suppressions = {}
errors = []
check_for_memcheck = False
# skip_next_line has 3 possible values:
# - False: don't skip the next line.
# - 'skip_suppression_name': the next line is a suppression name, skip.
# - 'skip_param': the next line is a system call parameter error, skip.
skip_next_line = False
for f in filter(lambda x: sup_regex.search(x.LocalPath()),
input_api.AffectedFiles()):
for line, line_num in zip(f.NewContents(),
xrange(1, len(f.NewContents()) + 1)):
line = line.lstrip()
if line.startswith('#') or not line:
continue
if skip_next_line:
if skip_next_line == 'skip_suppression_name':
if 'insert_a_suppression_name_here' in line:
errors.append('"insert_a_suppression_name_here" is not a valid '
'suppression name')
if suppressions.has_key(line):
if f.LocalPath() == suppressions[line][1]:
errors.append('suppression with name "%s" at %s line %s '
'has already been defined at line %s' %
(line, f.LocalPath(), line_num,
suppressions[line][1]))
else:
errors.append('suppression with name "%s" at %s line %s '
'has already been defined at %s line %s' %
(line, f.LocalPath(), line_num,
suppressions[line][0], suppressions[line][1]))
else:
suppressions[line] = (f, line_num)
check_for_memcheck = True;
skip_next_line = False
continue
if check_for_memcheck:
if not line.startswith('Memcheck:'):
errors.append('"%s" should be "Memcheck:..." in %s line %s' %
(line, f.LocalPath(), line_num))
check_for_memcheck = False;
if line == '{':
skip_next_line = 'skip_suppression_name'
continue
if line == "Memcheck:Param":
skip_next_line = 'skip_param'
continue
if (line.startswith('fun:') or line.startswith('obj:') or
line.startswith('Memcheck:') or line == '}' or
line == '...'):
continue
errors.append('"%s" is probably wrong: %s line %s' % (line, f.LocalPath(),
line_num))
if errors:
return [output_api.PresubmitError('\n'.join(errors))]
return []
def CheckChangeOnUpload(input_api, output_api):
return CheckChange(input_api, output_api)
def CheckChangeOnCommit(input_api, output_api):
return CheckChange(input_api, output_api)
def GetPreferredTrySlaves():
# We don't have any memcheck slaves yet, so there's no use for this method.
# When we have, the slave name(s) should be put into this list.
return []
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