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# Copyright (c) 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Top-level presubmit script for auto-bisect.
See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
details on the presubmit API.
"""
import imp
import subprocess
import os
# Paths to bisect config files relative to src/tools.
CONFIG_FILES = [
'auto_bisect/config.cfg',
'run-perf-test.cfg'
]
def CheckChangeOnUpload(input_api, output_api):
return _CommonChecks(input_api, output_api)
def CheckChangeOnCommit(input_api, output_api):
return _CommonChecks(input_api, output_api)
def _CommonChecks(input_api, output_api):
"""Does all presubmit checks for auto-bisect."""
results = []
results.extend(_CheckAllConfigFiles(input_api, output_api))
results.extend(_RunUnitTests(input_api, output_api))
results.extend(_RunPyLint(input_api, output_api))
return results
def _CheckAllConfigFiles(input_api, output_api):
"""Checks all bisect config files and returns a list of presubmit results."""
results = []
for f in input_api.AffectedFiles():
for config_file in CONFIG_FILES:
if f.LocalPath().endswith(config_file):
results.extend(_CheckConfigFile(config_file, output_api))
return results
def _CheckConfigFile(file_path, output_api):
"""Checks one bisect config file and returns a list of presubmit results."""
try:
config_file = imp.load_source('config', file_path)
except IOError as e:
warning = 'Failed to read config file %s: %s' % (file_path, str(e))
return [output_api.PresubmitError(warning, items=[file_path])]
if not hasattr(config_file.config):
warning = 'Config file has no "config" global variable: %s' % str(e)
return [output_api.PresubmitError(warning, items=[file_path])]
if type(config_file.config) is not dict:
warning = 'Config file "config" global variable is not dict: %s' % str(e)
return [output_api.PresubmitError(warning, items=[file_path])]
for k, v in config_file.config.iteritems():
if v != '':
warning = 'Non-empty value in config dict: %s: %s' % (repr(k), repr(v))
warning += ('\nThe bisection config file should only contain a config '
'dict with empty fields. Changes to this file should not '
'be submitted.')
return [output_api.PresubmitError(warning, items=[file_path])]
return []
def _RunUnitTests(input_api, output_api):
"""Runs unit tests for auto-bisect."""
repo_root = input_api.change.RepositoryRoot()
auto_bisect_dir = os.path.join(repo_root, 'tools', 'auto_bisect')
test_runner = os.path.join(auto_bisect_dir, 'run_tests')
return_code = subprocess.call(['python', test_runner])
if return_code:
message = 'Auto-bisect unit tests did not all pass.'
return [output_api.PresubmitError(message)]
return []
def _RunPyLint(input_api, output_api):
"""Runs unit tests for auto-bisect."""
tests = input_api.canned_checks.GetPylint(input_api, output_api)
return input_api.RunTests(tests)
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