mirror of
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408 lines
14 KiB
Python
Executable File
408 lines
14 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Utility to interact with golden data test outputs, produced by golden data test framework.
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For details on the golden data test framework see: docs/golden_data_test_framework.md.
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"""
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import os
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import pathlib
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import platform
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import re
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import shutil
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import sys
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from subprocess import call, check_output
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import click
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# Get relative imports to work when the package is not installed on the PYTHONPATH.
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if __name__ == "__main__" and __package__ is None:
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sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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# pylint: disable=wrong-import-position
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from buildscripts.util.fileops import read_yaml_file
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# pylint: enable=wrong-import-position
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assert sys.version_info >= (3, 7)
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class AppError(Exception):
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"""Application execution error."""
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pass
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class GoldenTestConfig(object):
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"""Represents the golden test configuration.
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See: docs/golden_data_test_framework.md#appendix---config-file-reference
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"""
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def __init__(self, iterable=(), **kwargs):
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"""Initialize the fields."""
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self.__dict__.update(iterable, **kwargs)
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outputRootPattern: str
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diffCmd: str
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@classmethod
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def from_yaml_file(cls, path: str) -> "GoldenTestConfig":
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"""Read the golden test configuration from the given file."""
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return cls(**read_yaml_file(path))
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class OutputPaths(object):
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"""Represents actual and expected output paths."""
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def __init__(self, actual, expected):
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"""Initialize the fields."""
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self.actual = actual
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self.expected = expected
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actual: None
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expected: None
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def replace_variables(pattern: str, variables: dict) -> str:
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"""Replace the mustache-style variables."""
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return re.sub(r"\{\{(\w+)\}\}", lambda match: variables[match.group(1)], pattern)
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def get_path_name_regex(pattern: str) -> str:
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"""Return the regex pattern for output names."""
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return "[0-9a-f]".join([re.escape(part) for part in pattern.split("%")])
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# For compatibility with version<3.8 that does not support shutil.copytree with dirs_exist_ok=True
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def copytree_dirs_exist_ok_compatibility(src, dest):
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if os.path.isdir(src):
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if not os.path.isdir(dest):
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os.makedirs(dest)
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files = os.listdir(src)
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for file in files:
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copytree_dirs_exist_ok_compatibility(os.path.join(src, file), os.path.join(dest, file))
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else:
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shutil.copyfile(src, dest)
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def copytree_dirs_exist_ok(src, dest):
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if sys.version_info >= (3, 8):
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shutil.copytree(src, dest, dirs_exist_ok=True)
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else:
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copytree_dirs_exist_ok_compatibility(src, dest)
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@click.group()
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@click.option("-n", "--dry-run", is_flag=True)
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@click.option("-v", "--verbose", is_flag=True)
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@click.option(
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"--config",
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envvar="GOLDEN_TEST_CONFIG_PATH",
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help="Config file path. Also GOLDEN_TEST_CONFIG_PATH environment variable.",
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)
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@click.pass_context
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def cli(ctx, dry_run, verbose, config):
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"""Manage test results from golden data test framework.
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Allows for querying, diffing and accepting the golden data test results.
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\b
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For advanced setup guide see: https://wiki.corp.mongodb.com/display/KERNEL/Golden+Data+test+framework+and+workstation+setup
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"""
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ctx.obj = GoldenTestApp(dry_run, verbose, config)
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class GoldenTestApp(object):
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"""Represents the golden application."""
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verbose: False
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dry_run: False
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config_path: None
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config: None
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output_parent_path = None
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output_name_pattern = None
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output_name_regex = None
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def __init__(self, dry_run, verbose, config_path):
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"""Initialize the app."""
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self.verbose = verbose
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self.dry_run = dry_run
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self.config_path = config_path
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def init_config(self):
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self.config = self.load_config(self.config_path)
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self.output_parent_path = pathlib.Path(self.config.outputRootPattern).parent
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self.output_name_pattern = str(pathlib.Path(self.config.outputRootPattern).name)
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self.output_name_regex = get_path_name_regex(self.output_name_pattern)
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def vprint(self, *args, **kwargs):
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"""Verbose print, if enabled."""
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if self.verbose:
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print(*args, file=sys.stderr, **kwargs)
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def call_shell(self, cmd):
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"""Call shell command."""
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if not self.dry_run:
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call(cmd, shell=True)
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else:
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print(cmd)
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def get_git_root(self):
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"""Return the root for git repo."""
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self.vprint("Querying git repo root")
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repo_root = check_output("git rev-parse --show-toplevel", shell=True, text=True).strip()
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self.vprint(f"Found git repo root: '{repo_root}'")
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return repo_root
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def load_config(self, config_path):
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"""Load configuration file."""
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if config_path is None:
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raise AppError(
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(
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"Can't load config. GOLDEN_TEST_CONFIG_PATH envrionment variable is not set. Golden test CLI must be configured before use.\n"
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"To configure it, follow the instructions in https://github.com/mongodb/mongo/blob/master/docs/golden_data_test_framework.md#how-to-diff-and-accept-new-test-outputs-on-a-workstation\n"
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"Note: After setup you may need to rerun the tests for this utility to find them."
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)
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)
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self.vprint(f"Loading config from path: '{config_path}'")
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config = GoldenTestConfig.from_yaml_file(config_path)
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if config.outputRootPattern is None:
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raise AppError("Invalid config. outputRootPattern config parameter is not set")
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return config
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def get_output_path(self, output_name):
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"""Return the path for given output name."""
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if not re.match(self.output_name_regex, output_name):
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raise AppError(
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f"Invalid name: '{output_name}'. "
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+ f"Does not match configured pattern: {self.output_name_pattern}"
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)
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output_path = os.path.join(self.output_parent_path, output_name)
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if not os.path.isdir(output_path):
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raise AppError(f"No such directory: '{output_path}'")
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return output_path
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def list_outputs(self):
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"""Return names of all available outputs."""
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self.vprint(
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f"Listing outputs in path: '{self.output_parent_path}' "
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+ f"matching '{self.output_name_pattern}'"
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)
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if not os.path.isdir(self.output_parent_path):
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return []
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return [
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o
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for o in os.listdir(self.output_parent_path)
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if re.match(self.output_name_regex, o)
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and os.path.isdir(os.path.join(self.output_parent_path, o))
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]
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def get_latest_output(self):
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"""Return the output name wit most recent created timestamp."""
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latest_name = None
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latest_ctime = None
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self.vprint("Searching for output with latest creation time")
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for output_name in self.list_outputs():
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stat = os.stat(self.get_output_path(output_name))
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if (latest_ctime is None) or (stat.st_ctime > latest_ctime):
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latest_name = output_name
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latest_ctime = stat.st_ctime
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if latest_name is None:
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raise AppError("No outputs found")
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self.vprint(
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f"Found output with latest creation time: {latest_name} " + f"created at {latest_ctime}"
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)
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return latest_name
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def get_paths(self, output_name):
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"""Return actual and expected paths for given output name."""
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output_path = self.get_output_path(output_name)
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return OutputPaths(
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actual=os.path.join(output_path, "actual"),
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expected=os.path.join(output_path, "expected"),
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)
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def setup_linux(self):
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# Create config file
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config_path = os.path.join(os.path.expanduser("~"), ".golden_test_config.yml")
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if not os.path.isfile(config_path):
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print(f"Creating {config_path}")
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config_contents = (
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r"""outputRootPattern: '/var/tmp/test_output/out-%%%%-%%%%-%%%%-%%%%'"""
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"\n"
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r"""diffCmd: 'git diff --no-index "{{expected}}" "{{actual}}"'"""
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"\n"
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)
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with open(config_path, "w") as file:
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file.write(config_contents)
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else:
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print(f"Skipping creating {config_path}, file exists.")
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# Add global GOLDEN_TEST_CONFIG_PATH environment variable
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etc_environment_path = "/etc/environment"
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env_var_defined = False
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if os.path.isfile(etc_environment_path):
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with open(etc_environment_path, "r") as file:
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for line in file.readlines():
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if line.startswith("GOLDEN_TEST_CONFIG_PATH="):
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env_var_defined = True
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if not env_var_defined:
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print(f"Adding GOLDEN_TEST_CONFIG_PATH to {etc_environment_path}")
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env_var_contents = f'GOLDEN_TEST_CONFIG_PATH="{config_path}"'
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call(["sudo", "/bin/sh", "-c", f"echo '{env_var_contents}' >> {etc_environment_path}"])
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else:
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print(
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f"Skipping adding GOLDEN_TEST_CONFIG_PATH to {etc_environment_path}, variable already defined."
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)
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def setup_windows(self):
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# Create config file
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config_path = os.path.join(os.path.expandvars("%LocalAppData%"), ".golden_test_config.yml")
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if not os.path.isfile(config_path):
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print(f"Creating {config_path}")
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config_contents = (
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r"outputRootPattern: 'C:\Users\Administrator\AppData\Local\Temp\test_output\out-%%%%-%%%%-%%%%-%%%%'"
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"\n"
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r"""diffCmd: 'git diff --no-index "{{expected}}" "{{actual}}"'"""
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"\n"
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)
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with open(config_path, "w") as file:
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file.write(config_contents)
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else:
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print(f"Skipping creating {config_path}, file exists.")
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# Add global GOLDEN_TEST_CONFIG_PATH environment variable
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if os.environ.get("GOLDEN_TEST_CONFIG_PATH") is None:
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print("Setting GOLDEN_TEST_CONFIG_PATH global variable")
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call(
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[
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"runas",
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"/profile",
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"/user:administrator",
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f'setx GOLDEN_TEST_CONFIG_PATH "{config_path}"',
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]
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)
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else:
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print(
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"Skipping setting GOLDEN_TEST_CONFIG_PATH global variable, variable already defined."
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)
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@cli.command("diff", help="Diff the expected and actual folders of the test output")
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@click.argument("output_name", required=False)
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@click.pass_obj
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def command_diff(self, output_name):
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"""Diff the expected and actual folders of the test output."""
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self.init_config()
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if output_name is None:
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output_name = self.get_latest_output()
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self.vprint(f"Diffing results from output '{output_name}'")
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paths = self.get_paths(output_name)
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diff_cmd = replace_variables(
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self.config.diffCmd, {"actual": paths.actual, "expected": paths.expected}
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)
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self.vprint(f"Running command: '{diff_cmd}'")
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self.call_shell(diff_cmd)
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@cli.command("get-path", help="Get the root folder path of the test output.")
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@click.argument("output_name", required=False)
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@click.pass_obj
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def command_get_path(self, output_name):
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"""Get the root folder path of the test output."""
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self.init_config()
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if output_name is None:
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output_name = self.get_latest_output()
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print(self.get_output_path(output_name))
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@cli.command(
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"accept",
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help="Accept the actual test output and copy it as new golden data to the source repo.",
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)
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@click.argument("output_name", required=False)
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@click.pass_obj
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def command_accept(self, output_name):
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"""Accept the actual test output and copy it as new golden data to the source repo."""
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self.init_config()
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if output_name is None:
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output_name = self.get_latest_output()
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self.vprint(f"Accepting actual results from output '{output_name}'")
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repo_root = self.get_git_root()
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paths = self.get_paths(output_name)
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self.vprint(f"Copying files recursively from '{paths.actual}' to '{repo_root}'")
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if not self.dry_run:
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copytree_dirs_exist_ok(paths.actual, repo_root)
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@cli.command("clean", help="Remove all test outputs")
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@click.pass_obj
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def command_clean(self):
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"""Remove all test outputs."""
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self.init_config()
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outputs = self.list_outputs()
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self.vprint(f"Deleting {len(outputs)} outputs")
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for output_name in outputs:
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output_path = self.get_output_path(output_name)
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self.vprint(f"Deleting folder: '{output_path}'")
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if not self.dry_run:
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shutil.rmtree(output_path)
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@cli.command("latest", help="Get the name of the most recent test output")
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@click.pass_obj
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def command_latest(self):
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"""Get the name of the most recent test output."""
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self.init_config()
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output_name = self.get_latest_output()
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print(output_name)
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@cli.command("list", help="List all names of the available test outputs")
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@click.pass_obj
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def command_list(self):
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"""List all names of the available test outputs."""
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self.init_config()
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for output_name in self.list_outputs():
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print(output_name)
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@cli.command("setup", help="Performs default setup based on current platform")
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@click.pass_obj
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def command_setup(self):
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"""Performs default setup based on current platform."""
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if platform.platform().startswith("Linux"):
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self.setup_linux()
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elif platform.platform().startswith("Windows"):
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self.setup_windows()
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else:
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raise AppError(f"Platform not supported by this setup utility: {platform.platform()}")
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def main():
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"""Execute main."""
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try:
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cli() # pylint: disable=no-value-for-parameter
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except AppError as err:
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print(err)
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sys.exit(1)
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if __name__ == "__main__":
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main()
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