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ansible/test/lib/ansible_test/_internal/cover.py

341 lines
12 KiB
Python

"""Code coverage utilities."""
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import re
from .target import (
walk_module_targets,
walk_compile_targets,
)
from .util import (
display,
ApplicationError,
common_environment,
ANSIBLE_TEST_DATA_ROOT,
)
from .util_common import (
run_command,
)
from .config import (
CoverageConfig,
CoverageReportConfig,
)
from .executor import (
Delegate,
install_command_requirements,
)
from .data import (
data_context,
)
COVERAGE_GROUPS = ('command', 'target', 'environment', 'version')
COVERAGE_CONFIG_PATH = os.path.join(ANSIBLE_TEST_DATA_ROOT, 'coveragerc')
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_dir = os.path.join(data_context().results, 'coverage')
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 = data_context().content.root + '/'
counter = 0
groups = {}
if args.all or args.stub:
# excludes symlinks of regular files to avoid reporting on the same file multiple times
# in the future it would be nice to merge any coverage for symlinks into the real files
sources = sorted(os.path.abspath(target.path) for target in walk_compile_targets(include_symlinks=False))
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)
if data_context().content.collection:
collection_search_re = re.compile(r'/%s/' % data_context().content.collection.directory)
collection_sub_re = re.compile(r'^.*?/%s/' % data_context().content.collection.directory)
else:
collection_search_re = None
collection_sub_re = None
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 collection_search_re and collection_search_re.search(filename):
new_name = os.path.abspath(collection_sub_re.sub('', 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
coverage_file = os.path.join(data_context().results, 'coverage', 'coverage')
for group in sorted(groups):
arc_data = groups[group]
updated = coverage.CoverageData()
for filename in arc_data:
if not os.path.isfile(filename):
if collection_search_re and collection_search_re.search(filename) and os.path.basename(filename) == '__init__.py':
# the collection loader uses implicit namespace packages, so __init__.py does not need to exist on disk
continue
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', '--rcfile', COVERAGE_CONFIG_PATH] + options)
def command_coverage_html(args):
"""
:type args: CoverageConfig
"""
output_files = command_coverage_combine(args)
for output_file in output_files:
dir_name = os.path.join(data_context().results, 'reports', os.path.basename(output_file))
env = common_environment()
env.update(dict(COVERAGE_FILE=output_file))
run_command(args, env=env, cmd=['coverage', 'html', '--rcfile', COVERAGE_CONFIG_PATH, '-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 = os.path.join(data_context().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', '--rcfile', COVERAGE_CONFIG_PATH, '-i', '-o', xml_name])
def command_coverage_erase(args):
"""
:type args: CoverageConfig
"""
initialize_coverage(args)
coverage_dir = os.path.join(data_context().results, 'coverage')
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