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#!/usr/bin/env python2.7
# Copyright 2015, 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.
"""Filter out tests based on file differences compared to merge target branch"""
from subprocess import call, check_output
# Whitelist for all tests
# Update all instances in corresponding trigger lists when modifying this
starts_with_whitelist = ['templates/',
'doc/',
'examples/',
'summerofcode/',
'src/cpp',
'src/csharp',
'src/node',
'src/objective-c',
'src/php',
'src/python',
'src/ruby',
'test/core',
'test/cpp',
'test/distrib/cpp',
'test/distrib/csharp',
'test/distrib/node',
'test/distrib/php',
'test/distrib/python',
'test/distrib/ruby']
ends_with_whitelist = ['README.md',
'LICENSE']
# Triggers for core tests
core_starts_with_triggers = ['test/core']
# Triggers for c++ tests
cpp_starts_with_triggers = ['src/cpp',
'test/cpp',
'test/distrib/cpp']
# Triggers for c# tests
csharp_starts_with_triggers = ['src/csharp',
'test/distrib/csharp']
# Triggers for node tests
node_starts_with_triggers = ['src/node',
'test/distrib/node']
# Triggers for objective-c tests
objc_starts_with_triggers = ['src/objective-c']
# Triggers for php tests
php_starts_with_triggers = ['src/php',
'test/distrib/php']
# Triggers for python tests
python_starts_with_triggers = ['src/python',
'test/distrib/python']
# Triggers for ruby tests
ruby_starts_with_triggers = ['src/ruby',
'test/distrib/ruby']
def _filter_whitelist(whitelist, triggers):
"""
Removes triggers from whitelist
:param whitelist: list to remove values from
:param triggers: list of values to remove from whitelist
:return: filtered whitelist
"""
filtered_whitelist = list(whitelist)
for trigger in triggers:
if trigger in filtered_whitelist:
filtered_whitelist.remove(trigger)
else:
"""
If the trigger is not found in the whitelist, then there is likely
a mistake in the whitelist or trigger list, which needs to be addressed
to not wrongly skip tests
"""
print("ERROR: '%s' trigger not in whitelist. Please fix this!" % trigger)
return filtered_whitelist
def _get_changed_files():
"""
Get list of changed files between current branch and base of target merge branch
"""
# git fetch might need to be called on Jenkins slave
# todo(mattkwong): remove or uncomment below after seeing if Jenkins needs this
# call(['git', 'fetch'])
# this also collects files that are changed in the repo but not updated in the branch
# todo(mattkwong): change this to only collect changes files compared to base and not hardcode branch
return check_output(["git", "diff", "--name-only", "..origin/master"]).splitlines()
def _can_skip_tests(file_names, starts_with_whitelist=[], ends_with_whitelist=[]):
"""
Determines if tests are skippable based on if all file names do not match
any begin or end triggers
:param file_names: list of changed files generated by _get_changed_files()
:param starts_with_triggers: tuple of strings to match with beginning of file names
:param ends_with_triggers: tuple of strings to match with end of file names
:return: safe to skip tests
"""
# convert lists to tuple to pass into str.startswith() and str.endswith()
starts_with_whitelist = tuple(starts_with_whitelist)
ends_with_whitelist = tuple(ends_with_whitelist)
print (starts_with_whitelist)
for file_name in file_names:
if starts_with_whitelist and not file_name.startswith(starts_with_whitelist) and \
ends_with_whitelist and not file_name.endswith(ends_with_whitelist):
return False
return True
def _remove_irrelevant_tests(tests, tag):
"""
Filters out tests by config or language
:param tests: list of all tests generated by run_tests_matrix.py
:param tag: string representing language or config to filter - "_(language)_" or "_(config)"
:return: list of relevant tests
"""
# todo(mattkwong): find a more reliable way to filter tests - don't use shortname
return [test for test in tests if not tag in test.shortname]
def filter_tests(tests):
"""
Filters out tests that are safe to ignore
:param tests: list of all tests generated by run_tests_matrix.py
:return: list of relevant tests
"""
print("Finding file differences between grpc:master repo and pull request...")
changed_files = _get_changed_files()
for changed_file in changed_files:
print(changed_file)
changed_files = ['src/ruby/dgf']
# Filter core tests
skip_core = _can_skip_tests(changed_files,
starts_with_whitelist=_filter_whitelist(starts_with_whitelist, core_starts_with_triggers),
ends_with_whitelist=ends_with_whitelist)
if skip_core:
tests = _remove_irrelevant_tests(tests, '_c_')
# Filter c++ tests
skip_cpp = _can_skip_tests(changed_files,
starts_with_whitelist=_filter_whitelist(starts_with_whitelist, cpp_starts_with_triggers),
ends_with_whitelist=ends_with_whitelist)
if skip_cpp:
tests = _remove_irrelevant_tests(tests, '_cpp_')
# Tsan, msan, and asan tests skipped if core and c++ are skipped
if skip_core and skip_cpp:
tests = _remove_irrelevant_tests(tests, '_tsan')
tests = _remove_irrelevant_tests(tests, '_msan')
tests = _remove_irrelevant_tests(tests, '_asan')
# Filter c# tests
skip_csharp = _can_skip_tests(changed_files,
starts_with_whitelist=_filter_whitelist(starts_with_whitelist, csharp_starts_with_triggers),
ends_with_whitelist=ends_with_whitelist)
if skip_csharp:
tests = _remove_irrelevant_tests(tests, '_csharp_')
# Filter node tests
skip_node = _can_skip_tests(changed_files,
starts_with_whitelist=_filter_whitelist(starts_with_whitelist, node_starts_with_triggers),
ends_with_whitelist=ends_with_whitelist)
if skip_node:
tests = _remove_irrelevant_tests(tests, '_node_')
# Filter objc tests
skip_objc = _can_skip_tests(changed_files,
starts_with_whitelist=_filter_whitelist(starts_with_whitelist, objc_starts_with_triggers),
ends_with_whitelist=ends_with_whitelist)
if skip_objc:
tests = _remove_irrelevant_tests(tests, '_objc_')
# Filter php tests
skip_php = _can_skip_tests(changed_files,
starts_with_whitelist=_filter_whitelist(starts_with_whitelist, php_starts_with_triggers),
ends_with_whitelist=ends_with_whitelist)
if skip_php:
tests = _remove_irrelevant_tests(tests, '_php_')
# Filter python tests
skip_python = _can_skip_tests(changed_files,
starts_with_whitelist=_filter_whitelist(starts_with_whitelist, python_starts_with_triggers),
ends_with_whitelist=ends_with_whitelist)
if skip_python:
tests = _remove_irrelevant_tests(tests, '_python_')
# Filter ruby tests
skip_ruby = _can_skip_tests(changed_files,
starts_with_whitelist=_filter_whitelist(starts_with_whitelist, ruby_starts_with_triggers),
ends_with_whitelist=ends_with_whitelist)
if skip_ruby:
tests = _remove_irrelevant_tests(tests, '_ruby_')
return tests
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