346 lines
12 KiB
Python
346 lines
12 KiB
Python
"""Common utility code that depends on CommonConfig."""
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import atexit
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import contextlib
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import json
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import os
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import shutil
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import tempfile
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import textwrap
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from . import types as t
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from .util import (
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common_environment,
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COVERAGE_CONFIG_NAME,
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display,
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find_python,
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is_shippable,
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MODE_DIRECTORY,
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MODE_FILE_EXECUTE,
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PYTHON_PATHS,
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raw_command,
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to_bytes,
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ANSIBLE_TEST_DATA_ROOT,
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make_dirs,
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)
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from .data import (
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data_context,
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)
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class ResultType:
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"""Test result type."""
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BOT = None # type: ResultType
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COVERAGE = None # type: ResultType
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DATA = None # type: ResultType
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JUNIT = None # type: ResultType
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LOGS = None # type: ResultType
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REPORTS = None # type: ResultType
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TMP = None # type: ResultType
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@staticmethod
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def _populate():
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ResultType.BOT = ResultType('bot')
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ResultType.COVERAGE = ResultType('coverage')
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ResultType.DATA = ResultType('data')
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ResultType.JUNIT = ResultType('junit')
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ResultType.LOGS = ResultType('logs')
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ResultType.REPORTS = ResultType('reports')
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ResultType.TMP = ResultType('.tmp')
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def __init__(self, name): # type: (str) -> None
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self.name = name
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@property
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def relative_path(self): # type: () -> str
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"""The content relative path to the results."""
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return os.path.join(data_context().results_relative, self.name)
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@property
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def path(self): # type: () -> str
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"""The absolute path to the results."""
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return os.path.join(data_context().results, self.name)
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def __str__(self): # type: () -> str
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return self.name
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# noinspection PyProtectedMember
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ResultType._populate() # pylint: disable=protected-access
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class CommonConfig:
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"""Configuration common to all commands."""
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def __init__(self, args, command):
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"""
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:type args: any
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:type command: str
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"""
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self.command = command
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self.color = args.color # type: bool
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self.explain = args.explain # type: bool
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self.verbosity = args.verbosity # type: int
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self.debug = args.debug # type: bool
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self.truncate = args.truncate # type: int
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self.redact = args.redact # type: bool
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if is_shippable():
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self.redact = True
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self.cache = {}
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def get_ansible_config(self): # type: () -> str
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"""Return the path to the Ansible config for the given config."""
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return os.path.join(ANSIBLE_TEST_DATA_ROOT, 'ansible.cfg')
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@contextlib.contextmanager
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def named_temporary_file(args, prefix, suffix, directory, content):
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"""
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:param args: CommonConfig
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:param prefix: str
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:param suffix: str
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:param directory: str
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:param content: str | bytes | unicode
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:rtype: str
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"""
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if args.explain:
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yield os.path.join(directory, '%stemp%s' % (prefix, suffix))
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else:
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with tempfile.NamedTemporaryFile(prefix=prefix, suffix=suffix, dir=directory) as tempfile_fd:
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tempfile_fd.write(to_bytes(content))
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tempfile_fd.flush()
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yield tempfile_fd.name
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def write_json_test_results(category, name, content): # type: (ResultType, str, t.Union[t.List[t.Any], t.Dict[str, t.Any]]) -> None
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"""Write the given json content to the specified test results path, creating directories as needed."""
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path = os.path.join(category.path, name)
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write_json_file(path, content, create_directories=True)
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def write_text_test_results(category, name, content): # type: (ResultType, str, str) -> None
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"""Write the given text content to the specified test results path, creating directories as needed."""
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path = os.path.join(category.path, name)
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write_text_file(path, content, create_directories=True)
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def write_json_file(path, content, create_directories=False): # type: (str, t.Union[t.List[t.Any], t.Dict[str, t.Any]], bool) -> None
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"""Write the given json content to the specified path, optionally creating missing directories."""
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text_content = json.dumps(content, sort_keys=True, indent=4, ensure_ascii=False) + '\n'
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write_text_file(path, text_content, create_directories=create_directories)
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def write_text_file(path, content, create_directories=False): # type: (str, str, bool) -> None
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"""Write the given text content to the specified path, optionally creating missing directories."""
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if create_directories:
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make_dirs(os.path.dirname(path))
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with open(to_bytes(path), 'wb') as file:
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file.write(to_bytes(content))
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def get_python_path(args, interpreter):
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"""
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:type args: TestConfig
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:type interpreter: str
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:rtype: str
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"""
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# When the python interpreter is already named "python" its directory can simply be added to the path.
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# Using another level of indirection is only required when the interpreter has a different name.
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if os.path.basename(interpreter) == 'python':
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return os.path.dirname(interpreter)
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python_path = PYTHON_PATHS.get(interpreter)
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if python_path:
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return python_path
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prefix = 'python-'
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suffix = '-ansible'
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root_temp_dir = '/tmp'
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if args.explain:
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return os.path.join(root_temp_dir, ''.join((prefix, 'temp', suffix)))
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python_path = tempfile.mkdtemp(prefix=prefix, suffix=suffix, dir=root_temp_dir)
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injected_interpreter = os.path.join(python_path, 'python')
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# A symlink is faster than the execv wrapper, but isn't compatible with virtual environments.
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# Attempt to detect when it is safe to use a symlink by checking the real path of the interpreter.
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use_symlink = os.path.dirname(os.path.realpath(interpreter)) == os.path.dirname(interpreter)
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if use_symlink:
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display.info('Injecting "%s" as a symlink to the "%s" interpreter.' % (injected_interpreter, interpreter), verbosity=1)
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os.symlink(interpreter, injected_interpreter)
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else:
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display.info('Injecting "%s" as a execv wrapper for the "%s" interpreter.' % (injected_interpreter, interpreter), verbosity=1)
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code = textwrap.dedent('''
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#!%s
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from __future__ import absolute_import
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from os import execv
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from sys import argv
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python = '%s'
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execv(python, [python] + argv[1:])
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''' % (interpreter, interpreter)).lstrip()
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write_text_file(injected_interpreter, code)
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os.chmod(injected_interpreter, MODE_FILE_EXECUTE)
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os.chmod(python_path, MODE_DIRECTORY)
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if not PYTHON_PATHS:
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atexit.register(cleanup_python_paths)
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PYTHON_PATHS[interpreter] = python_path
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return python_path
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def cleanup_python_paths():
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"""Clean up all temporary python directories."""
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for path in sorted(PYTHON_PATHS.values()):
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display.info('Cleaning up temporary python directory: %s' % path, verbosity=2)
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shutil.rmtree(path)
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def get_coverage_environment(args, target_name, version, temp_path, module_coverage, remote_temp_path=None):
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"""
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:type args: TestConfig
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:type target_name: str
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:type version: str
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:type temp_path: str
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:type module_coverage: bool
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:type remote_temp_path: str | None
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:rtype: dict[str, str]
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"""
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if temp_path:
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# integration tests (both localhost and the optional testhost)
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# config and results are in a temporary directory
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coverage_config_base_path = temp_path
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coverage_output_base_path = temp_path
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elif args.coverage_config_base_path:
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# unit tests, sanity tests and other special cases (localhost only)
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# config is in a temporary directory
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# results are in the source tree
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coverage_config_base_path = args.coverage_config_base_path
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coverage_output_base_path = data_context().results
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else:
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raise Exception('No temp path and no coverage config base path. Check for missing coverage_context usage.')
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config_file = os.path.join(coverage_config_base_path, COVERAGE_CONFIG_NAME)
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coverage_file = os.path.join(coverage_output_base_path, ResultType.COVERAGE.name, '%s=%s=%s=%s=coverage' % (
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args.command, target_name, args.coverage_label or 'local-%s' % version, 'python-%s' % version))
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if not args.explain and not os.path.exists(config_file):
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raise Exception('Missing coverage config file: %s' % config_file)
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if args.coverage_check:
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# cause the 'coverage' module to be found, but not imported or enabled
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coverage_file = ''
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# Enable code coverage collection on local Python programs (this does not include Ansible modules).
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# Used by the injectors to support code coverage.
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# Used by the pytest unit test plugin to support code coverage.
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# The COVERAGE_FILE variable is also used directly by the 'coverage' module.
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env = dict(
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COVERAGE_CONF=config_file,
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COVERAGE_FILE=coverage_file,
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)
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if module_coverage:
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# Enable code coverage collection on Ansible modules (both local and remote).
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# Used by the AnsiballZ wrapper generator in lib/ansible/executor/module_common.py to support code coverage.
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env.update(dict(
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_ANSIBLE_COVERAGE_CONFIG=config_file,
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_ANSIBLE_COVERAGE_OUTPUT=coverage_file,
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))
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if remote_temp_path:
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# Include the command, target and label so the remote host can create a filename with that info. The remote
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# is responsible for adding '={language version}=coverage.{hostname}.{pid}.{id}'
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env['_ANSIBLE_COVERAGE_REMOTE_OUTPUT'] = os.path.join(remote_temp_path, '%s=%s=%s' % (
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args.command, target_name, args.coverage_label or 'remote'))
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env['_ANSIBLE_COVERAGE_REMOTE_WHITELIST'] = os.path.join(data_context().content.root, '*')
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return env
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def intercept_command(args, cmd, target_name, env, capture=False, data=None, cwd=None, python_version=None, temp_path=None, module_coverage=True,
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virtualenv=None, disable_coverage=False, remote_temp_path=None):
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"""
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:type args: TestConfig
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:type cmd: collections.Iterable[str]
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:type target_name: str
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:type env: dict[str, str]
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:type capture: bool
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:type data: str | None
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:type cwd: str | None
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:type python_version: str | None
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:type temp_path: str | None
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:type module_coverage: bool
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:type virtualenv: str | None
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:type disable_coverage: bool
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:type remote_temp_path: str | None
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:rtype: str | None, str | None
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"""
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if not env:
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env = common_environment()
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cmd = list(cmd)
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version = python_version or args.python_version
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interpreter = virtualenv or find_python(version)
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inject_path = os.path.join(ANSIBLE_TEST_DATA_ROOT, 'injector')
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if not virtualenv:
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# injection of python into the path is required when not activating a virtualenv
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# otherwise scripts may find the wrong interpreter or possibly no interpreter
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python_path = get_python_path(args, interpreter)
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inject_path = python_path + os.path.pathsep + inject_path
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env['PATH'] = inject_path + os.path.pathsep + env['PATH']
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env['ANSIBLE_TEST_PYTHON_VERSION'] = version
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env['ANSIBLE_TEST_PYTHON_INTERPRETER'] = interpreter
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if args.coverage and not disable_coverage:
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# add the necessary environment variables to enable code coverage collection
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env.update(get_coverage_environment(args, target_name, version, temp_path, module_coverage,
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remote_temp_path=remote_temp_path))
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return run_command(args, cmd, capture=capture, env=env, data=data, cwd=cwd)
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def run_command(args, cmd, capture=False, env=None, data=None, cwd=None, always=False, stdin=None, stdout=None,
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cmd_verbosity=1, str_errors='strict'):
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"""
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:type args: CommonConfig
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:type cmd: collections.Iterable[str]
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:type capture: bool
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:type env: dict[str, str] | None
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:type data: str | None
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:type cwd: str | None
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:type always: bool
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:type stdin: file | None
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:type stdout: file | None
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:type cmd_verbosity: int
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:type str_errors: str
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:rtype: str | None, str | None
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"""
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explain = args.explain and not always
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return raw_command(cmd, capture=capture, env=env, data=data, cwd=cwd, explain=explain, stdin=stdin, stdout=stdout,
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cmd_verbosity=cmd_verbosity, str_errors=str_errors)
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