ac492476e5
* Remove unused imports. * Clean up ConfigParser usage in ansible-test. * Fix bare except statements in ansible-test. * Miscellaneous cleanup from PyCharm inspections. * Enable pylint no-self-use for ansible-test. * Remove obsolete pylint ignores for Python 3.7. * Fix shellcheck issuers under newer shellcheck. * Use newer path for ansible-test. * Fix issues in code-smell tests.
827 lines
21 KiB
Python
827 lines
21 KiB
Python
"""Miscellaneous utility functions and classes."""
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from __future__ import absolute_import, print_function
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import atexit
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import contextlib
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import errno
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import fcntl
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import inspect
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import json
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import os
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import pipes
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import pkgutil
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import random
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import re
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import shutil
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import socket
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import stat
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import string
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import subprocess
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import sys
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import tempfile
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import time
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from struct import unpack, pack
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from termios import TIOCGWINSZ
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try:
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from abc import ABC
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except ImportError:
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from abc import ABCMeta
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ABC = ABCMeta('ABC', (), {})
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try:
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# noinspection PyCompatibility
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from ConfigParser import SafeConfigParser as ConfigParser
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except ImportError:
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# noinspection PyCompatibility
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from configparser import ConfigParser
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DOCKER_COMPLETION = {}
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coverage_path = '' # pylint: disable=locally-disabled, invalid-name
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def get_docker_completion():
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"""
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:rtype: dict[str, str]
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"""
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if not DOCKER_COMPLETION:
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images = read_lines_without_comments('test/runner/completion/docker.txt', remove_blank_lines=True)
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DOCKER_COMPLETION.update(dict(kvp for kvp in [parse_docker_completion(i) for i in images] if kvp))
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return DOCKER_COMPLETION
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def parse_docker_completion(value):
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"""
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:type value: str
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:rtype: tuple[str, dict[str, str]]
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"""
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values = value.split()
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if not values:
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return None
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name = values[0]
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data = dict((kvp[0], kvp[1] if len(kvp) > 1 else '') for kvp in [item.split('=', 1) for item in values[1:]])
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return name, data
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def is_shippable():
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"""
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:rtype: bool
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"""
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return os.environ.get('SHIPPABLE') == 'true'
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def remove_file(path):
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"""
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:type path: str
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"""
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if os.path.isfile(path):
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os.remove(path)
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def read_lines_without_comments(path, remove_blank_lines=False):
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"""
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:type path: str
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:type remove_blank_lines: bool
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:rtype: list[str]
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"""
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with open(path, 'r') as path_fd:
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lines = path_fd.read().splitlines()
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lines = [re.sub(r' *#.*$', '', line) for line in lines]
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if remove_blank_lines:
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lines = [line for line in lines if line]
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return lines
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def find_executable(executable, cwd=None, path=None, required=True):
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"""
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:type executable: str
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:type cwd: str
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:type path: str
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:type required: bool | str
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:rtype: str | None
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"""
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match = None
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real_cwd = os.getcwd()
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if not cwd:
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cwd = real_cwd
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if os.path.dirname(executable):
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target = os.path.join(cwd, executable)
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if os.path.exists(target) and os.access(target, os.F_OK | os.X_OK):
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match = executable
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else:
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if path is None:
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path = os.environ.get('PATH', os.path.defpath)
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if path:
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path_dirs = path.split(os.path.pathsep)
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seen_dirs = set()
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for path_dir in path_dirs:
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if path_dir in seen_dirs:
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continue
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seen_dirs.add(path_dir)
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if os.path.abspath(path_dir) == real_cwd:
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path_dir = cwd
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candidate = os.path.join(path_dir, executable)
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if os.path.exists(candidate) and os.access(candidate, os.F_OK | os.X_OK):
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match = candidate
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break
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if not match and required:
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message = 'Required program "%s" not found.' % executable
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if required != 'warning':
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raise ApplicationError(message)
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display.warning(message)
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return match
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def find_python(version, path=None):
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"""
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:type version: str
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:type path: str | None
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:rtype: str
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"""
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version_info = tuple(int(n) for n in version.split('.'))
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if not path and version_info == sys.version_info[:len(version_info)]:
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python_bin = sys.executable
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else:
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python_bin = find_executable('python%s' % version, path=path)
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return python_bin
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def generate_pip_command(python):
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"""
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:type python: str
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:rtype: list[str]
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"""
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return [python, '-m', 'pip.__main__']
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def intercept_command(args, cmd, target_name, capture=False, env=None, data=None, cwd=None, python_version=None, 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 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 python_version: str | None
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:type 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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inject_path = get_coverage_path(args)
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config_path = os.path.join(inject_path, 'injector.json')
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version = python_version or args.python_version
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interpreter = find_python(version, path)
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coverage_file = os.path.abspath(os.path.join(inject_path, '..', 'output', '%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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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:
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env['_ANSIBLE_COVERAGE_CONFIG'] = os.path.join(inject_path, '.coveragerc')
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env['_ANSIBLE_COVERAGE_OUTPUT'] = coverage_file
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config = dict(
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python_interpreter=interpreter,
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coverage_file=coverage_file if args.coverage else None,
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)
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if not args.explain:
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with open(config_path, 'w') as config_fd:
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json.dump(config, config_fd, indent=4, sort_keys=True)
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return run_command(args, cmd, capture=capture, env=env, data=data, cwd=cwd)
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def get_coverage_path(args):
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"""
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:type args: TestConfig
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:rtype: str
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"""
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global coverage_path # pylint: disable=locally-disabled, global-statement, invalid-name
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if coverage_path:
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return os.path.join(coverage_path, 'coverage')
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prefix = 'ansible-test-coverage-'
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tmp_dir = '/tmp'
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if args.explain:
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return os.path.join(tmp_dir, '%stmp' % prefix, 'coverage')
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src = os.path.abspath(os.path.join(os.getcwd(), 'test/runner/injector/'))
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coverage_path = tempfile.mkdtemp('', prefix, dir=tmp_dir)
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os.chmod(coverage_path, stat.S_IRWXU | stat.S_IRGRP | stat.S_IXGRP | stat.S_IROTH | stat.S_IXOTH)
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shutil.copytree(src, os.path.join(coverage_path, 'coverage'))
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shutil.copy('.coveragerc', os.path.join(coverage_path, 'coverage', '.coveragerc'))
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for root, dir_names, file_names in os.walk(coverage_path):
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for name in dir_names + file_names:
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os.chmod(os.path.join(root, name), stat.S_IRWXU | stat.S_IRGRP | stat.S_IXGRP | stat.S_IROTH | stat.S_IXOTH)
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for directory in 'output', 'logs':
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os.mkdir(os.path.join(coverage_path, directory))
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os.chmod(os.path.join(coverage_path, directory), stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
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atexit.register(cleanup_coverage_dir)
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return os.path.join(coverage_path, 'coverage')
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def cleanup_coverage_dir():
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"""Copy over coverage data from temporary directory and purge temporary directory."""
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output_dir = os.path.join(coverage_path, 'output')
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for filename in os.listdir(output_dir):
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src = os.path.join(output_dir, filename)
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dst = os.path.join(os.getcwd(), 'test', 'results', 'coverage')
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shutil.copy(src, dst)
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logs_dir = os.path.join(coverage_path, 'logs')
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for filename in os.listdir(logs_dir):
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random_suffix = ''.join(random.choice(string.ascii_letters + string.digits) for _ in range(8))
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new_name = '%s.%s.log' % (os.path.splitext(os.path.basename(filename))[0], random_suffix)
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src = os.path.join(logs_dir, filename)
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dst = os.path.join(os.getcwd(), 'test', 'results', 'logs', new_name)
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shutil.copy(src, dst)
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shutil.rmtree(coverage_path)
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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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def raw_command(cmd, capture=False, env=None, data=None, cwd=None, explain=False, stdin=None, stdout=None,
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cmd_verbosity=1, str_errors='strict'):
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"""
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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 explain: 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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if not cwd:
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cwd = os.getcwd()
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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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escaped_cmd = ' '.join(pipes.quote(c) for c in cmd)
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display.info('Run command: %s' % escaped_cmd, verbosity=cmd_verbosity, truncate=True)
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display.info('Working directory: %s' % cwd, verbosity=2)
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program = find_executable(cmd[0], cwd=cwd, path=env['PATH'], required='warning')
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if program:
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display.info('Program found: %s' % program, verbosity=2)
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for key in sorted(env.keys()):
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display.info('%s=%s' % (key, env[key]), verbosity=2)
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if explain:
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return None, None
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communicate = False
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if stdin is not None:
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data = None
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communicate = True
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elif data is not None:
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stdin = subprocess.PIPE
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communicate = True
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if stdout:
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communicate = True
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if capture:
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stdout = stdout or subprocess.PIPE
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stderr = subprocess.PIPE
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communicate = True
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else:
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stderr = None
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start = time.time()
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try:
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process = subprocess.Popen(cmd, env=env, stdin=stdin, stdout=stdout, stderr=stderr, cwd=cwd)
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except OSError as ex:
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if ex.errno == errno.ENOENT:
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raise ApplicationError('Required program "%s" not found.' % cmd[0])
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raise
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if communicate:
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encoding = 'utf-8'
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data_bytes = data.encode(encoding, 'surrogateescape') if data else None
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stdout_bytes, stderr_bytes = process.communicate(data_bytes)
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stdout_text = stdout_bytes.decode(encoding, str_errors) if stdout_bytes else u''
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stderr_text = stderr_bytes.decode(encoding, str_errors) if stderr_bytes else u''
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else:
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process.wait()
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stdout_text, stderr_text = None, None
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status = process.returncode
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runtime = time.time() - start
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display.info('Command exited with status %s after %s seconds.' % (status, runtime), verbosity=4)
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if status == 0:
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return stdout_text, stderr_text
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raise SubprocessError(cmd, status, stdout_text, stderr_text, runtime)
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def common_environment():
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"""Common environment used for executing all programs."""
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env = dict(
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LC_ALL='en_US.UTF-8',
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PATH=os.environ.get('PATH', os.path.defpath),
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)
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required = (
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'HOME',
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)
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optional = (
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'HTTPTESTER',
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'LD_LIBRARY_PATH',
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'SSH_AUTH_SOCK',
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# MacOS High Sierra Compatibility
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# http://sealiesoftware.com/blog/archive/2017/6/5/Objective-C_and_fork_in_macOS_1013.html
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'OBJC_DISABLE_INITIALIZE_FORK_SAFETY',
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'ANSIBLE_KEEP_REMOTE_FILES',
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)
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env.update(pass_vars(required=required, optional=optional))
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return env
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|
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def pass_vars(required, optional):
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"""
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:type required: collections.Iterable[str]
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:type optional: collections.Iterable[str]
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:rtype: dict[str, str]
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"""
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env = {}
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for name in required:
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if name not in os.environ:
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raise MissingEnvironmentVariable(name)
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env[name] = os.environ[name]
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|
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for name in optional:
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if name not in os.environ:
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continue
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env[name] = os.environ[name]
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return env
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|
|
|
|
|
def deepest_path(path_a, path_b):
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"""Return the deepest of two paths, or None if the paths are unrelated.
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:type path_a: str
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:type path_b: str
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:rtype: str | None
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"""
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if path_a == '.':
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path_a = ''
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if path_b == '.':
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path_b = ''
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|
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if path_a.startswith(path_b):
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return path_a or '.'
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|
|
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if path_b.startswith(path_a):
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return path_b or '.'
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|
|
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return None
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|
|
|
|
|
def remove_tree(path):
|
|
"""
|
|
:type path: str
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|
"""
|
|
try:
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shutil.rmtree(path)
|
|
except OSError as ex:
|
|
if ex.errno != errno.ENOENT:
|
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raise
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|
|
|
|
|
def make_dirs(path):
|
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"""
|
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:type path: str
|
|
"""
|
|
try:
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os.makedirs(path)
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|
except OSError as ex:
|
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if ex.errno != errno.EEXIST:
|
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raise
|
|
|
|
|
|
def is_binary_file(path):
|
|
"""
|
|
:type path: str
|
|
:rtype: bool
|
|
"""
|
|
assume_text = set([
|
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'.cfg',
|
|
'.conf',
|
|
'.crt',
|
|
'.css',
|
|
'.html',
|
|
'.ini',
|
|
'.j2',
|
|
'.js',
|
|
'.json',
|
|
'.md',
|
|
'.pem',
|
|
'.ps1',
|
|
'.psm1',
|
|
'.py',
|
|
'.rst',
|
|
'.sh',
|
|
'.txt',
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|
'.xml',
|
|
'.yaml',
|
|
'.yml',
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|
])
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|
|
|
assume_binary = set([
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'.bin',
|
|
'.eot',
|
|
'.gz',
|
|
'.ico',
|
|
'.iso',
|
|
'.jpg',
|
|
'.otf',
|
|
'.p12',
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|
'.png',
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|
'.pyc',
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|
'.rpm',
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|
'.ttf',
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'.woff',
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'.woff2',
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|
'.zip',
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])
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|
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ext = os.path.splitext(path)[1]
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|
|
if ext in assume_text:
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return False
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|
|
|
if ext in assume_binary:
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return True
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|
|
with open(path, 'rb') as path_fd:
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return b'\0' in path_fd.read(1024)
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|
|
|
|
|
def generate_password():
|
|
"""Generate a random password.
|
|
:rtype: str
|
|
"""
|
|
chars = [
|
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string.ascii_letters,
|
|
string.digits,
|
|
string.ascii_letters,
|
|
string.digits,
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'-',
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] * 4
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|
|
password = ''.join([random.choice(char) for char in chars[:-1]])
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|
|
|
display.sensitive.add(password)
|
|
|
|
return password
|
|
|
|
|
|
class Display(object):
|
|
"""Manages color console output."""
|
|
clear = '\033[0m'
|
|
red = '\033[31m'
|
|
green = '\033[32m'
|
|
yellow = '\033[33m'
|
|
blue = '\033[34m'
|
|
purple = '\033[35m'
|
|
cyan = '\033[36m'
|
|
|
|
verbosity_colors = {
|
|
0: None,
|
|
1: green,
|
|
2: blue,
|
|
3: cyan,
|
|
}
|
|
|
|
def __init__(self):
|
|
self.verbosity = 0
|
|
self.color = True
|
|
self.warnings = []
|
|
self.warnings_unique = set()
|
|
self.info_stderr = False
|
|
self.rows = 0
|
|
self.columns = 0
|
|
self.truncate = 0
|
|
self.redact = False
|
|
self.sensitive = set()
|
|
|
|
if os.isatty(0):
|
|
self.rows, self.columns = unpack('HHHH', fcntl.ioctl(0, TIOCGWINSZ, pack('HHHH', 0, 0, 0, 0)))[:2]
|
|
|
|
def __warning(self, message):
|
|
"""
|
|
:type message: str
|
|
"""
|
|
self.print_message('WARNING: %s' % message, color=self.purple, fd=sys.stderr)
|
|
|
|
def review_warnings(self):
|
|
"""Review all warnings which previously occurred."""
|
|
if not self.warnings:
|
|
return
|
|
|
|
self.__warning('Reviewing previous %d warning(s):' % len(self.warnings))
|
|
|
|
for warning in self.warnings:
|
|
self.__warning(warning)
|
|
|
|
def warning(self, message, unique=False):
|
|
"""
|
|
:type message: str
|
|
:type unique: bool
|
|
"""
|
|
if unique:
|
|
if message in self.warnings_unique:
|
|
return
|
|
|
|
self.warnings_unique.add(message)
|
|
|
|
self.__warning(message)
|
|
self.warnings.append(message)
|
|
|
|
def notice(self, message):
|
|
"""
|
|
:type message: str
|
|
"""
|
|
self.print_message('NOTICE: %s' % message, color=self.purple, fd=sys.stderr)
|
|
|
|
def error(self, message):
|
|
"""
|
|
:type message: str
|
|
"""
|
|
self.print_message('ERROR: %s' % message, color=self.red, fd=sys.stderr)
|
|
|
|
def info(self, message, verbosity=0, truncate=False):
|
|
"""
|
|
:type message: str
|
|
:type verbosity: int
|
|
:type truncate: bool
|
|
"""
|
|
if self.verbosity >= verbosity:
|
|
color = self.verbosity_colors.get(verbosity, self.yellow)
|
|
self.print_message(message, color=color, fd=sys.stderr if self.info_stderr else sys.stdout, truncate=truncate)
|
|
|
|
def print_message(self, message, color=None, fd=sys.stdout, truncate=False): # pylint: disable=locally-disabled, invalid-name
|
|
"""
|
|
:type message: str
|
|
:type color: str | None
|
|
:type fd: file
|
|
:type truncate: bool
|
|
"""
|
|
if self.redact and self.sensitive:
|
|
for item in self.sensitive:
|
|
message = message.replace(item, '*' * len(item))
|
|
|
|
if truncate:
|
|
if len(message) > self.truncate > 5:
|
|
message = message[:self.truncate - 5] + ' ...'
|
|
|
|
if color and self.color:
|
|
# convert color resets in message to desired color
|
|
message = message.replace(self.clear, color)
|
|
message = '%s%s%s' % (color, message, self.clear)
|
|
|
|
if sys.version_info[0] == 2 and isinstance(message, type(u'')):
|
|
message = message.encode('utf-8')
|
|
|
|
print(message, file=fd)
|
|
fd.flush()
|
|
|
|
|
|
class ApplicationError(Exception):
|
|
"""General application error."""
|
|
pass
|
|
|
|
|
|
class ApplicationWarning(Exception):
|
|
"""General application warning which interrupts normal program flow."""
|
|
pass
|
|
|
|
|
|
class SubprocessError(ApplicationError):
|
|
"""Error resulting from failed subprocess execution."""
|
|
def __init__(self, cmd, status=0, stdout=None, stderr=None, runtime=None):
|
|
"""
|
|
:type cmd: list[str]
|
|
:type status: int
|
|
:type stdout: str | None
|
|
:type stderr: str | None
|
|
:type runtime: float | None
|
|
"""
|
|
message = 'Command "%s" returned exit status %s.\n' % (' '.join(pipes.quote(c) for c in cmd), status)
|
|
|
|
if stderr:
|
|
message += '>>> Standard Error\n'
|
|
message += '%s%s\n' % (stderr.strip(), Display.clear)
|
|
|
|
if stdout:
|
|
message += '>>> Standard Output\n'
|
|
message += '%s%s\n' % (stdout.strip(), Display.clear)
|
|
|
|
message = message.strip()
|
|
|
|
super(SubprocessError, self).__init__(message)
|
|
|
|
self.cmd = cmd
|
|
self.status = status
|
|
self.stdout = stdout
|
|
self.stderr = stderr
|
|
self.runtime = runtime
|
|
|
|
|
|
class MissingEnvironmentVariable(ApplicationError):
|
|
"""Error caused by missing environment variable."""
|
|
def __init__(self, name):
|
|
"""
|
|
:type name: str
|
|
"""
|
|
super(MissingEnvironmentVariable, self).__init__('Missing environment variable: %s' % name)
|
|
|
|
self.name = name
|
|
|
|
|
|
class CommonConfig(object):
|
|
"""Configuration common to all commands."""
|
|
def __init__(self, args):
|
|
"""
|
|
:type args: any
|
|
"""
|
|
self.color = args.color # type: bool
|
|
self.explain = args.explain # type: bool
|
|
self.verbosity = args.verbosity # type: int
|
|
self.debug = args.debug # type: bool
|
|
self.truncate = args.truncate # type: int
|
|
self.redact = args.redact # type: bool
|
|
|
|
if is_shippable():
|
|
self.redact = True
|
|
|
|
|
|
def docker_qualify_image(name):
|
|
"""
|
|
:type name: str
|
|
:rtype: str
|
|
"""
|
|
config = get_docker_completion().get(name, {})
|
|
|
|
return config.get('name', name)
|
|
|
|
|
|
def parse_to_list_of_dict(pattern, value):
|
|
"""
|
|
:type pattern: str
|
|
:type value: str
|
|
:return: list[dict[str, str]]
|
|
"""
|
|
matched = []
|
|
unmatched = []
|
|
|
|
for line in value.splitlines():
|
|
match = re.search(pattern, line)
|
|
|
|
if match:
|
|
matched.append(match.groupdict())
|
|
else:
|
|
unmatched.append(line)
|
|
|
|
if unmatched:
|
|
raise Exception('Pattern "%s" did not match values:\n%s' % (pattern, '\n'.join(unmatched)))
|
|
|
|
return matched
|
|
|
|
|
|
def get_available_port():
|
|
"""
|
|
:rtype: int
|
|
"""
|
|
# this relies on the kernel not reusing previously assigned ports immediately
|
|
socket_fd = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
|
|
with contextlib.closing(socket_fd):
|
|
socket_fd.bind(('', 0))
|
|
return socket_fd.getsockname()[1]
|
|
|
|
|
|
def get_subclasses(class_type):
|
|
"""
|
|
:type class_type: type
|
|
:rtype: set[str]
|
|
"""
|
|
subclasses = set()
|
|
queue = [class_type]
|
|
|
|
while queue:
|
|
parent = queue.pop()
|
|
|
|
for child in parent.__subclasses__():
|
|
if child not in subclasses:
|
|
if not inspect.isabstract(child):
|
|
subclasses.add(child)
|
|
queue.append(child)
|
|
|
|
return subclasses
|
|
|
|
|
|
def import_plugins(directory):
|
|
"""
|
|
:type directory: str
|
|
"""
|
|
path = os.path.join(os.path.dirname(__file__), directory)
|
|
prefix = 'lib.%s.' % directory
|
|
|
|
for (_, name, _) in pkgutil.iter_modules([path], prefix=prefix):
|
|
__import__(name)
|
|
|
|
|
|
def load_plugins(base_type, database):
|
|
"""
|
|
:type base_type: type
|
|
:type database: dict[str, type]
|
|
"""
|
|
plugins = dict((sc.__module__.split('.')[2], sc) for sc in get_subclasses(base_type)) # type: dict [str, type]
|
|
|
|
for plugin in plugins:
|
|
database[plugin] = plugins[plugin]
|
|
|
|
|
|
display = Display() # pylint: disable=locally-disabled, invalid-name
|