mirror of https://github.com/mongodb/mongo
408 lines
14 KiB
Python
408 lines
14 KiB
Python
"""API to parse and access the configuration present in a evergreen.yml file.
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The API also provides methods to access specific fields present in the mongodb/mongo
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configuration file.
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"""
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from __future__ import annotations
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import datetime
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import distutils.spawn # pylint: disable=no-name-in-module
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import os
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import subprocess
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from typing import Any, Dict, List, Optional, Set
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import yaml
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import buildscripts.util.runcommand as runcommand
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ENTERPRISE_MODULE_NAME = "enterprise"
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ASAN_SIGNATURE = "detect_leaks=1"
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def parse_evergreen_file(path, evergreen_binary="evergreen"):
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"""Read an Evergreen file and return EvergreenProjectConfig instance."""
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if evergreen_binary:
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if not distutils.spawn.find_executable(evergreen_binary):
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default_evergreen_location = os.path.expanduser(os.path.join("~", "evergreen"))
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if os.path.exists(default_evergreen_location):
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evergreen_binary = default_evergreen_location
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elif os.path.exists(f"{default_evergreen_location}.exe"):
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evergreen_binary = f"{default_evergreen_location}.exe"
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else:
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raise EnvironmentError(
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"Executable '{}' does not exist or is not in the PATH.".format(
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evergreen_binary))
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# Call 'evergreen evaluate path' to pre-process the project configuration file.
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cmd = [evergreen_binary, "evaluate", path]
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result = subprocess.run(cmd, capture_output=True, text=True, check=False)
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if result.returncode:
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raise RuntimeError("Unable to evaluate {}: {}".format(path, result.stdout))
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config = yaml.safe_load(result.stdout)
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else:
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with open(path, "r") as fstream:
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config = yaml.safe_load(fstream)
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return EvergreenProjectConfig(config)
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class EvergreenProjectConfig(object): # pylint: disable=too-many-instance-attributes
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"""Represent an Evergreen project configuration file."""
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def __init__(self, conf):
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"""Initialize the EvergreenProjectConfig from a YML dictionary."""
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self._conf = conf
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self.tasks = [Task(task_dict) for task_dict in self._conf["tasks"]]
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self._tasks_by_name = {task.name: task for task in self.tasks}
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self.task_groups = [
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TaskGroup(task_group_dict) for task_group_dict in self._conf.get("task_groups", [])
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]
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self._task_groups_by_name = {task_group.name: task_group for task_group in self.task_groups}
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self.variants = [
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Variant(variant_dict, self._tasks_by_name, self._task_groups_by_name)
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for variant_dict in self._conf["buildvariants"]
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]
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self._variants_by_name = {variant.name: variant for variant in self.variants}
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self.distro_names = set()
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for variant in self.variants:
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self.distro_names.update(variant.distro_names)
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@property
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def task_names(self) -> List[str]:
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"""Get the list of task names."""
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return list(self._tasks_by_name.keys())
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def get_task(self, task_name: str) -> Task:
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"""Return the task with the given name as a Task instance."""
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return self._tasks_by_name.get(task_name)
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@property
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def task_group_names(self):
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"""Get the list of task_group names."""
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return list(self._task_groups_by_name.keys())
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def get_task_group(self, task_group_name):
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"""Return the task_group with the given name as a Task instance."""
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return self._task_groups_by_name.get(task_group_name)
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@property
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def variant_names(self):
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"""Get the list of build variant names."""
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return list(self._variants_by_name.keys())
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def get_variant(self, variant_name: str) -> Variant:
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"""Return the variant with the given name as a Variant instance."""
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return self._variants_by_name.get(variant_name)
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def get_required_variants(self) -> Set[Variant]:
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"""Get the list of required build variants."""
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return {variant for variant in self.variants if variant.is_required_variant()}
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def get_task_names_by_tag(self, tag):
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"""Return the list of tasks that have the given tag."""
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return list(task.name for task in self.tasks if tag in task.tags)
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class Task(object):
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"""Represent a task configuration as found in an Evergreen project configuration file."""
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def __init__(self, conf_dict):
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"""Initialize a Task from a dictionary containing its configuration."""
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self.raw = conf_dict
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# Lazy parse task tags.
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self._tags = None
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@property
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def name(self):
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"""Get the task name."""
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return self.raw["name"]
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@property
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def depends_on(self):
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"""Get the list of task names this task depends on."""
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return self.raw.get("depends_on", [])
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def find_func_command(self, func_command):
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"""Return the 'func_command' if found, or None."""
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for command in self.raw.get("commands", []):
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if command.get("func") == func_command:
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return command
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return None
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@property
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def generate_resmoke_tasks_command(self) -> Optional[Dict[str, Any]]:
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"""Return the 'generate resmoke tasks' command if found, or None."""
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return self.find_func_command("generate resmoke tasks")
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@property
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def is_generate_resmoke_task(self) -> bool:
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"""Return True if 'generate resmoke tasks' command is found."""
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return self.generate_resmoke_tasks_command is not None
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@property
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def run_tests_command(self) -> Optional[Dict[str, Any]]:
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"""Return the 'run tests' command if found, or None."""
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return self.find_func_command("run tests")
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@property
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def is_run_tests_task(self) -> bool:
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"""Return True if 'run_tests' command is found."""
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return self.run_tests_command is not None
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@property
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def initialize_multiversion_tasks_command(self) -> Optional[Dict[str, Any]]:
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"""Return the 'initialize multiversion tasks' command if found, or None."""
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return self.find_func_command("initialize multiversion tasks")
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@property
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def is_initialize_multiversion_tasks_task(self) -> bool:
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"""Return True if 'initialize multiversion tasks' command is found."""
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return self.initialize_multiversion_tasks_command is not None
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@property
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def generated_task_name(self) -> str:
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"""
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Get basename of the tasks generated by this _gen task.
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:return: Basename of the generated tasks.
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"""
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if not self.is_generate_resmoke_task:
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raise TypeError("Only _gen tasks can have generated task names")
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return self.name[:-4]
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def get_resmoke_command_vars(self) -> Dict[str, Any]:
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"""Get the vars for either 'generate resmoke tasks' or 'run tests', both eventually call resmoke.py."""
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if self.is_run_tests_task:
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return self.run_tests_command.get("vars", {})
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if self.is_generate_resmoke_task:
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return self.generate_resmoke_tasks_command.get("vars", {})
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return {}
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def get_suite_names(self) -> List[str]:
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"""Get the names of the resmoke.py suites from the task definition."""
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command_vars = self.get_resmoke_command_vars()
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if self.is_run_tests_task:
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return [command_vars.get("suite", self.name)]
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if self.is_generate_resmoke_task and not self.is_initialize_multiversion_tasks_task:
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return [command_vars.get("suite", self.generated_task_name)]
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if self.is_initialize_multiversion_tasks_task:
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return [
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suite
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for suite in self.initialize_multiversion_tasks_command.get("vars", {}).keys()
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]
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raise ValueError(f"{self.name} task does not run a resmoke.py test suite")
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@property
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def suite_to_resmoke_args_map(self) -> Dict[str, str]:
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"""Get the resmoke.py arguments from the task definition."""
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output = {}
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for suite_name in self.get_suite_names():
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resmoke_args = f"--suites={suite_name}"
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more_args = self.get_resmoke_command_vars().get("resmoke_args")
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if more_args is not None:
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resmoke_args = f"{resmoke_args} {more_args}"
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output[suite_name] = resmoke_args
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return output
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@property
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def tags(self):
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"""Get a set of tags this task has been marked with."""
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if self._tags is None:
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self._tags = set(self.raw.get("tags", []))
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return self._tags
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def require_multiversion_setup(self):
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"""Check if the task requires running the multiversion setup."""
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return "multiversion" in self.tags
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def __str__(self):
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return self.name
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class TaskGroup(object):
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"""Represent a task_group configuration as found in an Evergreen project configuration file."""
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def __init__(self, conf_dict):
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"""Initialize a TaskGroup from a dictionary containing its configuration."""
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self.raw = conf_dict
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@property
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def name(self):
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"""Get the task_group name."""
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return self.raw["name"]
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@property
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def tasks(self):
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"""Get the list of task names for task_group."""
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return self.raw.get("tasks", [])
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def __str__(self):
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return self.name
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class Variant(object):
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"""Build variant configuration as found in an Evergreen project configuration file."""
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def __init__(self, conf_dict, task_map, task_group_map):
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"""Initialize Variant."""
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self.raw = conf_dict
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run_on = self.run_on
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self.tasks = []
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for task in conf_dict["tasks"]:
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task_name = task.get("name")
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if task_name in task_group_map:
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# A task in conf_dict may be a task_group, containing a list of tasks.
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for task_in_group in task_group_map.get(task_name).tasks:
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self.tasks.append(
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VariantTask(task_map.get(task_in_group), task.get("distros", run_on), self))
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else:
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self.tasks.append(
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VariantTask(task_map.get(task["name"]), task.get("distros", run_on), self))
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self.distro_names = set(run_on)
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for task in self.tasks:
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self.distro_names.update(task.run_on)
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def __repr__(self):
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"""Create a string version of object for debugging."""
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return self.name
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@property
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def name(self):
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"""Get the build variant name."""
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return self.raw["name"]
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@property
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def display_name(self):
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"""Get the build variant display name, or None if not found."""
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return self.raw.get("display_name")
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@property
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def batchtime(self):
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"""Get the build variant batchtime parameter as datetime.timedelta.
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Return None if the batchtime parameter is not found.
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"""
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batchtime = self.raw.get("batchtime")
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return datetime.timedelta(minutes=batchtime) if batchtime is not None else None
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@property
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def modules(self):
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"""Get build variant modules parameter as a list of module names."""
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modules = self.raw.get("modules")
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return modules if modules is not None else []
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def is_enterprise_build(self) -> bool:
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"""Determine if this build variant include the enterprise module."""
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return ENTERPRISE_MODULE_NAME in set(self.modules)
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@property
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def run_on(self):
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"""Get build variant run_on parameter as a list of distro names."""
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run_on = self.raw.get("run_on")
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return run_on if run_on is not None else []
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@property
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def task_names(self):
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"""Get list of task names."""
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return [t.name for t in self.tasks]
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def is_required_variant(self) -> bool:
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"""Return True if the variant is a required variant."""
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return self.display_name.startswith("!")
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def get_task(self, task_name):
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"""Return the task with the given name as an instance of VariantTask.
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Return None if this variant does not run the task.
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"""
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for task in self.tasks:
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if task.name == task_name:
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return task
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return None
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def __str__(self):
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return self.name
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# Expansions
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def expansion(self, name):
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"""Return the value of the expansion named 'name', or None if not found."""
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return self.raw.get("expansions", {}).get(name)
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@property
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def expansions(self):
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"""Get the expansions."""
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return self.raw.get("expansions", [])
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@property
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def test_flags(self):
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"""Get the value of the test_flags expansion or None if not found."""
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return self.expansion("test_flags")
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@property
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def num_jobs_available(self):
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"""Get the value of the num_jobs_available expansion or None if not found."""
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return self.expansion("num_jobs_available")
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def is_asan_build(self) -> bool:
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"""Determine if this task is an ASAN build."""
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san_options = self.expansion("san_options")
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if san_options:
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return ASAN_SIGNATURE in san_options
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return False
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@property
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def idle_timeout_factor(self) -> Optional[float]:
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"""Get the value of idle_timeout_factor expansion or None if not found."""
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factor = self.expansion("idle_timeout_factor")
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if factor:
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return float(factor)
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return None
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@property
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def exec_timeout_factor(self) -> Optional[float]:
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"""Get the value of exec_timeout_factor expansion or None if not found."""
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factor = self.expansion("exec_timeout_factor")
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if factor:
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return float(factor)
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return None
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class VariantTask(Task):
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"""Represent a task definition in the context of a build variant."""
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def __init__(self, task, run_on, variant):
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"""Initialize VariantTask."""
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Task.__init__(self, task.raw)
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self.run_on = run_on
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self.variant = variant
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def __repr__(self):
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"""Create a string representation of object for debugging."""
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return f"{self.variant}: {self.name}"
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@property
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def combined_suite_to_resmoke_args_map(self) -> Dict[str, str]:
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"""Get the combined resmoke arguments.
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This results from the concatenation of the task's resmoke_args parameter and the
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variant's test_flags parameter.
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"""
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variant_test_flags = self.variant.test_flags
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if variant_test_flags is not None:
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output = {}
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for suite_name, task_resmoke_args in self.suite_to_resmoke_args_map.items():
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output[suite_name] = f"{task_resmoke_args} {variant_test_flags}"
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return output
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return self.suite_to_resmoke_args_map
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