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community.general/test/runner/lib/cover.py
Matt Clay 8fa294a33a
Fix ansible-test coverage stub memory usage. (#53652)
Split coverage stub files into multiple parts based on the number
of lines in files included in each stub. This will keep memory usage
down to avoid hanging on Shippable.
2019-03-11 15:14:09 -07:00

311 lines
10 KiB
Python

"""Code coverage utilities."""
from __future__ import absolute_import, print_function
import os
import re
from lib.target import (
walk_module_targets,
walk_compile_targets,
)
from lib.util import (
display,
ApplicationError,
run_command,
common_environment,
)
from lib.config import (
CoverageConfig,
CoverageReportConfig,
)
from lib.executor import (
Delegate,
install_command_requirements,
)
COVERAGE_DIR = 'test/results/coverage'
COVERAGE_FILE = os.path.join(COVERAGE_DIR, 'coverage')
COVERAGE_GROUPS = ('command', 'target', 'environment', 'version')
def command_coverage_combine(args):
"""Patch paths in coverage files and merge into a single file.
:type args: CoverageConfig
:rtype: list[str]
"""
coverage = initialize_coverage(args)
modules = dict((t.module, t.path) for t in list(walk_module_targets()) if t.path.endswith('.py'))
coverage_files = [os.path.join(COVERAGE_DIR, f) for f in os.listdir(COVERAGE_DIR) if '=coverage.' in f]
ansible_path = os.path.abspath('lib/ansible/') + '/'
root_path = os.getcwd() + '/'
counter = 0
groups = {}
if args.all or args.stub:
sources = sorted(os.path.abspath(target.path) for target in walk_compile_targets())
else:
sources = []
if args.stub:
stub_group = []
stub_groups = [stub_group]
stub_line_limit = 500000
stub_line_count = 0
for source in sources:
with open(source, 'r') as source_fd:
source_line_count = len(source_fd.read().splitlines())
stub_group.append(source)
stub_line_count += source_line_count
if stub_line_count > stub_line_limit:
stub_line_count = 0
stub_group = []
stub_groups.append(stub_group)
for stub_index, stub_group in enumerate(stub_groups):
if not stub_group:
continue
groups['=stub-%02d' % (stub_index + 1)] = dict((source, set()) for source in stub_group)
for coverage_file in coverage_files:
counter += 1
display.info('[%4d/%4d] %s' % (counter, len(coverage_files), coverage_file), verbosity=2)
original = coverage.CoverageData()
group = get_coverage_group(args, coverage_file)
if group is None:
display.warning('Unexpected name for coverage file: %s' % coverage_file)
continue
if os.path.getsize(coverage_file) == 0:
display.warning('Empty coverage file: %s' % coverage_file)
continue
try:
original.read_file(coverage_file)
except Exception as ex: # pylint: disable=locally-disabled, broad-except
display.error(u'%s' % ex)
continue
for filename in original.measured_files():
arcs = set(original.arcs(filename) or [])
if not arcs:
# This is most likely due to using an unsupported version of coverage.
display.warning('No arcs found for "%s" in coverage file: %s' % (filename, coverage_file))
continue
if '/ansible_modlib.zip/ansible/' in filename:
# Rewrite the module_utils path from the remote host to match the controller. Ansible 2.6 and earlier.
new_name = re.sub('^.*/ansible_modlib.zip/ansible/', ansible_path, filename)
display.info('%s -> %s' % (filename, new_name), verbosity=3)
filename = new_name
elif re.search(r'/ansible_[^/]+_payload\.zip/ansible/', filename):
# Rewrite the module_utils path from the remote host to match the controller. Ansible 2.7 and later.
new_name = re.sub(r'^.*/ansible_[^/]+_payload\.zip/ansible/', ansible_path, filename)
display.info('%s -> %s' % (filename, new_name), verbosity=3)
filename = new_name
elif '/ansible_module_' in filename:
# Rewrite the module path from the remote host to match the controller. Ansible 2.6 and earlier.
module_name = re.sub('^.*/ansible_module_(?P<module>.*).py$', '\\g<module>', filename)
if module_name not in modules:
display.warning('Skipping coverage of unknown module: %s' % module_name)
continue
new_name = os.path.abspath(modules[module_name])
display.info('%s -> %s' % (filename, new_name), verbosity=3)
filename = new_name
elif re.search(r'/ansible_[^/]+_payload(_[^/]+|\.zip)/__main__\.py$', filename):
# Rewrite the module path from the remote host to match the controller. Ansible 2.7 and later.
# AnsiballZ versions using zipimporter will match the `.zip` portion of the regex.
# AnsiballZ versions not using zipimporter will match the `_[^/]+` portion of the regex.
module_name = re.sub(r'^.*/ansible_(?P<module>[^/]+)_payload(_[^/]+|\.zip)/__main__\.py$', '\\g<module>', filename).rstrip('_')
if module_name not in modules:
display.warning('Skipping coverage of unknown module: %s' % module_name)
continue
new_name = os.path.abspath(modules[module_name])
display.info('%s -> %s' % (filename, new_name), verbosity=3)
filename = new_name
elif re.search('^(/.*?)?/root/ansible/', filename):
# Rewrite the path of code running on a remote host or in a docker container as root.
new_name = re.sub('^(/.*?)?/root/ansible/', root_path, filename)
display.info('%s -> %s' % (filename, new_name), verbosity=3)
filename = new_name
elif '/.ansible/test/tmp/' in filename:
# Rewrite the path of code running from an integration test temporary directory.
new_name = re.sub(r'^.*/\.ansible/test/tmp/[^/]+/', root_path, filename)
display.info('%s -> %s' % (filename, new_name), verbosity=3)
filename = new_name
if group not in groups:
groups[group] = {}
arc_data = groups[group]
if filename not in arc_data:
arc_data[filename] = set()
arc_data[filename].update(arcs)
output_files = []
invalid_path_count = 0
invalid_path_chars = 0
for group in sorted(groups):
arc_data = groups[group]
updated = coverage.CoverageData()
for filename in arc_data:
if not os.path.isfile(filename):
invalid_path_count += 1
invalid_path_chars += len(filename)
if args.verbosity > 1:
display.warning('Invalid coverage path: %s' % filename)
continue
updated.add_arcs({filename: list(arc_data[filename])})
if args.all:
updated.add_arcs(dict((source, []) for source in sources))
if not args.explain:
output_file = COVERAGE_FILE + group
updated.write_file(output_file)
output_files.append(output_file)
if invalid_path_count > 0:
display.warning('Ignored %d characters from %d invalid coverage path(s).' % (invalid_path_chars, invalid_path_count))
return sorted(output_files)
def command_coverage_report(args):
"""
:type args: CoverageReportConfig
"""
output_files = command_coverage_combine(args)
for output_file in output_files:
if args.group_by or args.stub:
display.info('>>> Coverage Group: %s' % ' '.join(os.path.basename(output_file).split('=')[1:]))
options = []
if args.show_missing:
options.append('--show-missing')
if args.include:
options.extend(['--include', args.include])
if args.omit:
options.extend(['--omit', args.omit])
env = common_environment()
env.update(dict(COVERAGE_FILE=output_file))
run_command(args, env=env, cmd=['coverage', 'report'] + options)
def command_coverage_html(args):
"""
:type args: CoverageConfig
"""
output_files = command_coverage_combine(args)
for output_file in output_files:
dir_name = 'test/results/reports/%s' % os.path.basename(output_file)
env = common_environment()
env.update(dict(COVERAGE_FILE=output_file))
run_command(args, env=env, cmd=['coverage', 'html', '-i', '-d', dir_name])
def command_coverage_xml(args):
"""
:type args: CoverageConfig
"""
output_files = command_coverage_combine(args)
for output_file in output_files:
xml_name = 'test/results/reports/%s.xml' % os.path.basename(output_file)
env = common_environment()
env.update(dict(COVERAGE_FILE=output_file))
run_command(args, env=env, cmd=['coverage', 'xml', '-i', '-o', xml_name])
def command_coverage_erase(args):
"""
:type args: CoverageConfig
"""
initialize_coverage(args)
for name in os.listdir(COVERAGE_DIR):
if not name.startswith('coverage') and '=coverage.' not in name:
continue
path = os.path.join(COVERAGE_DIR, name)
if not args.explain:
os.remove(path)
def initialize_coverage(args):
"""
:type args: CoverageConfig
:rtype: coverage
"""
if args.delegate:
raise Delegate()
if args.requirements:
install_command_requirements(args)
try:
import coverage
except ImportError:
coverage = None
if not coverage:
raise ApplicationError('You must install the "coverage" python module to use this command.')
return coverage
def get_coverage_group(args, coverage_file):
"""
:type args: CoverageConfig
:type coverage_file: str
:rtype: str
"""
parts = os.path.basename(coverage_file).split('=', 4)
if len(parts) != 5 or not parts[4].startswith('coverage.'):
return None
names = dict(
command=parts[0],
target=parts[1],
environment=parts[2],
version=parts[3],
)
group = ''
for part in COVERAGE_GROUPS:
if part in args.group_by:
group += '=%s' % names[part]
return group