2025-12-04T07:56:46.2553919Z Current runner version: '2.329.0'
2025-12-04T07:56:46.2583115Z ##[group]Runner Image Provisioner
2025-12-04T07:56:46.2584312Z Hosted Compute Agent
2025-12-04T07:56:46.2585262Z Version: 20251124.448
2025-12-04T07:56:46.2586256Z Commit: fda5086b43ec66ade217e5fcd18146c879571177
2025-12-04T07:56:46.2587472Z Build Date: 2025-11-24T21:16:26Z
2025-12-04T07:56:46.2588355Z ##[endgroup]
2025-12-04T07:56:46.2589188Z ##[group]Operating System
2025-12-04T07:56:46.2590643Z Ubuntu
2025-12-04T07:56:46.2591484Z 24.04.3
2025-12-04T07:56:46.2592323Z LTS
2025-12-04T07:56:46.2593059Z ##[endgroup]
2025-12-04T07:56:46.2594064Z ##[group]Runner Image
2025-12-04T07:56:46.2594959Z Image: ubuntu-24.04
2025-12-04T07:56:46.2595761Z Version: 20251126.144.1
2025-12-04T07:56:46.2597644Z Included Software: https://github.com/actions/runner-images/blob/ubuntu24/20251126.144/images/ubuntu/Ubuntu2404-Readme.md
2025-12-04T07:56:46.2600668Z Image Release: https://github.com/actions/runner-images/releases/tag/ubuntu24%2F20251126.144
2025-12-04T07:56:46.2602549Z ##[endgroup]
2025-12-04T07:56:46.2606736Z ##[group]GITHUB_TOKEN Permissions
2025-12-04T07:56:46.2609898Z Actions: read
2025-12-04T07:56:46.2610960Z ArtifactMetadata: read
2025-12-04T07:56:46.2611780Z Attestations: read
2025-12-04T07:56:46.2612736Z Checks: read
2025-12-04T07:56:46.2613471Z Contents: read
2025-12-04T07:56:46.2614234Z Deployments: read
2025-12-04T07:56:46.2615715Z Discussions: read
2025-12-04T07:56:46.2616478Z Issues: read
2025-12-04T07:56:46.2617423Z Metadata: read
2025-12-04T07:56:46.2618221Z Models: read
2025-12-04T07:56:46.2619044Z Packages: read
2025-12-04T07:56:46.2619846Z Pages: read
2025-12-04T07:56:46.2621022Z PullRequests: read
2025-12-04T07:56:46.2621846Z RepositoryProjects: read
2025-12-04T07:56:46.2622839Z SecurityEvents: read
2025-12-04T07:56:46.2623828Z Statuses: read
2025-12-04T07:56:46.2624608Z ##[endgroup]
2025-12-04T07:56:46.2627035Z Secret source: Actions
2025-12-04T07:56:46.2628223Z Prepare workflow directory
2025-12-04T07:56:46.3221061Z Prepare all required actions
2025-12-04T07:56:46.3294177Z Uses: pytorch/pytorch/.github/workflows/_runner-determinator.yml@refs/heads/main (ffd9b0fb4355e97af82fc42cf185c3ffa0fc0a32)
2025-12-04T07:56:46.3301603Z ##[group] Inputs
2025-12-04T07:56:46.3302485Z   check_experiments: 
2025-12-04T07:56:46.3303437Z   opt_out_experiments: 
2025-12-04T07:56:46.3304388Z   triggering_actor: pytorchmergebot
2025-12-04T07:56:46.3305300Z   issue_owner: 
2025-12-04T07:56:46.3306151Z   curr_branch: main
2025-12-04T07:56:46.3307000Z   curr_ref_type: branch
2025-12-04T07:56:46.3307817Z   issue_number: 5132
2025-12-04T07:56:46.3308782Z ##[endgroup]
2025-12-04T07:56:46.3309591Z Complete job name: get-label-type / runner-determinator
2025-12-04T07:56:46.4089552Z ##[group]Run cat <<EOF > runner_determinator.py
2025-12-04T07:56:46.4092663Z cat <<EOF > runner_determinator.py
2025-12-04T07:56:46.4093645Z # flake8: noqa: G004
2025-12-04T07:56:46.4094624Z 
2025-12-04T07:56:46.4095693Z # Note: Copies of this script in runner_determinator.py and _runner-determinator.yml
2025-12-04T07:56:46.4097362Z #       must be kept in sync. You can do it easily by running the following command:
2025-12-04T07:56:46.4098967Z #           python .github/scripts/update_runner_determinator.py
2025-12-04T07:56:46.4100198Z 
2025-12-04T07:56:46.4100919Z """
2025-12-04T07:56:46.4102047Z This runner determinator is used to determine which set of runners to run a
2025-12-04T07:56:46.4103592Z GitHub job on. It uses the first comment of a GitHub issue (by default
2025-12-04T07:56:46.4105423Z https://github.com/pytorch/test-infra/issues/5132) to define the configuration
2025-12-04T07:56:46.4106980Z of which runners should be used to run which job.
2025-12-04T07:56:46.4108033Z 
2025-12-04T07:56:46.4109138Z The configuration has two parts, the settings and a list of opted-in users,
2025-12-04T07:56:46.4111032Z separated by a line containing "---".  If the line is not present, the
2025-12-04T07:56:46.4112805Z settings are considered to be empty with only the second part, the user
2025-12-04T07:56:46.4114247Z list, defined.
2025-12-04T07:56:46.4115036Z 
2025-12-04T07:56:46.4115991Z The first part is a YAML block that defines the rollout settings. This can be
2025-12-04T07:56:46.4117772Z used to define any settings that are needed to determine which runners to use.
2025-12-04T07:56:46.4119238Z It's fields are defined by the RolloutSettings class below.
2025-12-04T07:56:46.4120643Z 
2025-12-04T07:56:46.4121810Z The second part is a list of users who are explicitly opted in to the LF fleet.
2025-12-04T07:56:46.4123311Z The user list is also a comma separated list of additional features or
2025-12-04T07:56:46.4124790Z experiments which the user could be opted in to.
2025-12-04T07:56:46.4125790Z 
2025-12-04T07:56:46.4126513Z The user list has the following rules:
2025-12-04T07:56:46.4127437Z 
2025-12-04T07:56:46.4128462Z - Users are GitHub usernames, which must start with the @ prefix
2025-12-04T07:56:46.4129942Z - Each user is also a comma-separated list of features/experiments to enable
2025-12-04T07:56:46.4131592Z - A "#" prefix opts the user out of all experiments
2025-12-04T07:56:46.4132615Z 
2025-12-04T07:56:46.4133228Z Example config:
2025-12-04T07:56:46.4134249Z     # A list of experiments that can be opted into.
2025-12-04T07:56:46.4135567Z     # This defines the behavior they'll induce when opted into.
2025-12-04T07:56:46.4136635Z     # Expected syntax is:
2025-12-04T07:56:46.4138019Z     #   [experiment_name]: # Name of the experiment. Also used for the label prefix.
2025-12-04T07:56:46.4139672Z     #      rollout_perc: [int] # % of workflows to run with this experiment when users are not opted in.
2025-12-04T07:56:46.4141272Z 
2025-12-04T07:56:46.4142009Z     experiments:
2025-12-04T07:56:46.4142841Z       lf:
2025-12-04T07:56:46.4143592Z         rollout_percent: 25
2025-12-04T07:56:46.4144611Z         all_branches: false
2025-12-04T07:56:46.4145511Z         default: true
2025-12-04T07:56:46.4146266Z     ---
2025-12-04T07:56:46.4147078Z 
2025-12-04T07:56:46.4147934Z     # Opt-ins:
2025-12-04T07:56:46.4149008Z     # Users can opt into the LF fleet by adding their GitHub username to this list
2025-12-04T07:56:46.4151143Z     # and specifying experiments to enable in a comma-separated list.
2025-12-04T07:56:46.4152550Z     # To always opt out of an experiment, prefix it with a "-".
2025-12-04T07:56:46.4153855Z     # Experiments should be from the above list.
2025-12-04T07:56:46.4155103Z 
2025-12-04T07:56:46.4155816Z     @User1,-lf,split_build
2025-12-04T07:56:46.4156730Z     @User2,lf
2025-12-04T07:56:46.4157698Z     @User3,split_build
2025-12-04T07:56:46.4158633Z """
2025-12-04T07:56:46.4159307Z 
2025-12-04T07:56:46.4160345Z import json
2025-12-04T07:56:46.4161255Z import logging
2025-12-04T07:56:46.4162081Z import os
2025-12-04T07:56:46.4163009Z import random
2025-12-04T07:56:46.4163764Z import re
2025-12-04T07:56:46.4164549Z import sys
2025-12-04T07:56:46.4165630Z from argparse import ArgumentParser
2025-12-04T07:56:46.4166735Z from collections.abc import Iterable
2025-12-04T07:56:46.4167734Z from functools import cache
2025-12-04T07:56:46.4168911Z from logging import LogRecord
2025-12-04T07:56:46.4169958Z from typing import Any, NamedTuple
2025-12-04T07:56:46.4171298Z from urllib.request import Request, urlopen
2025-12-04T07:56:46.4172577Z 
2025-12-04T07:56:46.4173548Z import yaml
2025-12-04T07:56:46.4174362Z from github import Auth, Github
2025-12-04T07:56:46.4175481Z from github.Issue import Issue
2025-12-04T07:56:46.4176509Z 
2025-12-04T07:56:46.4177264Z 
2025-12-04T07:56:46.4178165Z DEFAULT_LABEL_PREFIX = ""  # use meta runners
2025-12-04T07:56:46.4179577Z WORKFLOW_LABEL_LF = "lf."  # use runners from the linux foundation
2025-12-04T07:56:46.4181434Z WORKFLOW_LABEL_LF_CANARY = "lf.c."  # use canary runners from the linux foundation
2025-12-04T07:56:46.4182939Z 
2025-12-04T07:56:46.4183832Z GITHUB_OUTPUT = os.getenv("GITHUB_OUTPUT", "")
2025-12-04T07:56:46.4184999Z GH_OUTPUT_KEY_AMI = "runner-ami"
2025-12-04T07:56:46.4186302Z GH_OUTPUT_KEY_LABEL_TYPE = "label-type"
2025-12-04T07:56:46.4187460Z OPT_OUT_LABEL = "no-runner-experiments"
2025-12-04T07:56:46.4188470Z 
2025-12-04T07:56:46.4189316Z SETTING_EXPERIMENTS = "experiments"
2025-12-04T07:56:46.4190687Z 
2025-12-04T07:56:46.4191412Z LF_FLEET_EXPERIMENT = "lf"
2025-12-04T07:56:46.4192530Z CANARY_FLEET_SUFFIX = ".c"
2025-12-04T07:56:46.4193487Z 
2025-12-04T07:56:46.4194179Z 
2025-12-04T07:56:46.4195079Z class Experiment(NamedTuple):
2025-12-04T07:56:46.4196017Z     rollout_perc: float = (
2025-12-04T07:56:46.4197472Z         0  # Percentage of workflows to experiment on when user is not opted-in.
2025-12-04T07:56:46.4198825Z     )
2025-12-04T07:56:46.4199608Z     all_branches: bool = (
2025-12-04T07:56:46.4201216Z         False  # If True, the experiment is also enabled on the exception branches
2025-12-04T07:56:46.4202566Z     )
2025-12-04T07:56:46.4203332Z     default: bool = (
2025-12-04T07:56:46.4204512Z         True  # If True, the experiment is enabled by default for all queries
2025-12-04T07:56:46.4205858Z     )
2025-12-04T07:56:46.4206565Z 
2025-12-04T07:56:46.4207369Z     # Add more fields as needed
2025-12-04T07:56:46.4208371Z 
2025-12-04T07:56:46.4209082Z 
2025-12-04T07:56:46.4209958Z class Settings(NamedTuple):
2025-12-04T07:56:46.4211068Z     """
2025-12-04T07:56:46.4212075Z     Settings for the experiments that can be opted into.
2025-12-04T07:56:46.4213303Z     """
2025-12-04T07:56:46.4214081Z 
2025-12-04T07:56:46.4214824Z     experiments: dict[str, Experiment] = {}
2025-12-04T07:56:46.4216021Z 
2025-12-04T07:56:46.4217003Z 
2025-12-04T07:56:46.4217810Z class ColorFormatter(logging.Formatter):
2025-12-04T07:56:46.4279116Z     """Color codes the log messages based on the log level"""
2025-12-04T07:56:46.4280357Z 
2025-12-04T07:56:46.4280923Z     COLORS = {
2025-12-04T07:56:46.4281615Z         "WARNING": "\033[33m",  # Yellow
2025-12-04T07:56:46.4282477Z         "ERROR": "\033[31m",  # Red
2025-12-04T07:56:46.4283348Z         "CRITICAL": "\033[31m",  # Red
2025-12-04T07:56:46.4284224Z         "INFO": "\033[0m",  # Reset
2025-12-04T07:56:46.4285031Z         "DEBUG": "\033[0m",  # Reset
2025-12-04T07:56:46.4285779Z     }
2025-12-04T07:56:46.4286357Z 
2025-12-04T07:56:46.4287044Z     def format(self, record: LogRecord) -> str:
2025-12-04T07:56:46.4288238Z         log_color = self.COLORS.get(record.levelname, "\033[0m")  # Default to reset
2025-12-04T07:56:46.4289491Z         record.msg = f"{log_color}{record.msg}\033[0m"
2025-12-04T07:56:46.4290797Z         return super().format(record)
2025-12-04T07:56:46.4291583Z 
2025-12-04T07:56:46.4292101Z 
2025-12-04T07:56:46.4292705Z handler = logging.StreamHandler()
2025-12-04T07:56:46.4293934Z handler.setFormatter(ColorFormatter(fmt="%(levelname)-8s: %(message)s"))
2025-12-04T07:56:46.4295298Z 
2025-12-04T07:56:46.4296021Z log = logging.getLogger(os.path.basename(__file__))
2025-12-04T07:56:46.4296991Z log.addHandler(handler)
2025-12-04T07:56:46.4297750Z log.setLevel(logging.INFO)
2025-12-04T07:56:46.4298461Z 
2025-12-04T07:56:46.4298971Z 
2025-12-04T07:56:46.4299715Z def set_github_output(key: str, value: str) -> None:
2025-12-04T07:56:46.4300843Z     """
2025-12-04T07:56:46.4301682Z     Defines outputs of the github action that invokes this script
2025-12-04T07:56:46.4302691Z     """
2025-12-04T07:56:46.4303322Z     if not GITHUB_OUTPUT:
2025-12-04T07:56:46.4305076Z         # See https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/ for deprecation notice
2025-12-04T07:56:46.4306878Z         log.warning(
2025-12-04T07:56:46.4308292Z             "No env var found for GITHUB_OUTPUT, you must be running this code locally. Falling back to the deprecated print method."
2025-12-04T07:56:46.4309764Z         )
2025-12-04T07:56:46.4310753Z         print(f"::set-output name={key}::{value}")
2025-12-04T07:56:46.4311604Z         return
2025-12-04T07:56:46.4312210Z 
2025-12-04T07:56:46.4312821Z     with open(GITHUB_OUTPUT, "a") as f:
2025-12-04T07:56:46.4313770Z         log.info(f"Setting output: {key}='{value}'")
2025-12-04T07:56:46.4314666Z         f.write(f"{key}={value}\n")
2025-12-04T07:56:46.4315418Z 
2025-12-04T07:56:46.4315964Z 
2025-12-04T07:56:46.4316855Z def _str_comma_separated_to_set(value: str) -> frozenset[str]:
2025-12-04T07:56:46.4317982Z     return frozenset(
2025-12-04T07:56:46.4319072Z         filter(lambda itm: itm != "", map(str.strip, value.strip(" \n\t").split(",")))
2025-12-04T07:56:46.4320462Z     )
2025-12-04T07:56:46.4321097Z 
2025-12-04T07:56:46.4321664Z 
2025-12-04T07:56:46.4322267Z def parse_args() -> Any:
2025-12-04T07:56:46.4323270Z     parser = ArgumentParser("Get dynamic rollout settings")
2025-12-04T07:56:46.4324813Z     parser.add_argument("--github-token", type=str, required=True, help="GitHub token")
2025-12-04T07:56:46.4326115Z     parser.add_argument(
2025-12-04T07:56:46.4326936Z         "--github-issue-repo",
2025-12-04T07:56:46.4327796Z         type=str,
2025-12-04T07:56:46.4328546Z         required=False,
2025-12-04T07:56:46.4329589Z         default="pytorch/test-infra",
2025-12-04T07:56:46.4330740Z         help="GitHub repo to get the issue",
2025-12-04T07:56:46.4331645Z     )
2025-12-04T07:56:46.4332312Z     parser.add_argument(
2025-12-04T07:56:46.4333109Z         "--github-repo",
2025-12-04T07:56:46.4333888Z         type=str,
2025-12-04T07:56:46.4334633Z         required=True,
2025-12-04T07:56:46.4335539Z         help="GitHub repo where CI is running",
2025-12-04T07:56:46.4336417Z     )
2025-12-04T07:56:46.4337046Z     parser.add_argument(
2025-12-04T07:56:46.4338151Z         "--github-issue", type=int, required=True, help="GitHub issue number"
2025-12-04T07:56:46.4339304Z     )
2025-12-04T07:56:46.4339956Z     parser.add_argument(
2025-12-04T07:56:46.4341286Z         "--github-actor", type=str, required=True, help="GitHub triggering_actor"
2025-12-04T07:56:46.4342506Z     )
2025-12-04T07:56:46.4343157Z     parser.add_argument(
2025-12-04T07:56:46.4344291Z         "--github-issue-owner", type=str, required=True, help="GitHub issue owner"
2025-12-04T07:56:46.4345515Z     )
2025-12-04T07:56:46.4346172Z     parser.add_argument(
2025-12-04T07:56:46.4347573Z         "--github-branch", type=str, required=True, help="Current GitHub branch or tag"
2025-12-04T07:56:46.4348821Z     )
2025-12-04T07:56:46.4349491Z     parser.add_argument(
2025-12-04T07:56:46.4350504Z         "--github-ref-type",
2025-12-04T07:56:46.4351262Z         type=str,
2025-12-04T07:56:46.4351947Z         required=True,
2025-12-04T07:56:46.4352881Z         help="Current GitHub ref type, branch or tag",
2025-12-04T07:56:46.4353770Z     )
2025-12-04T07:56:46.4354357Z     parser.add_argument(
2025-12-04T07:56:46.4355135Z         "--eligible-experiments",
2025-12-04T07:56:46.4356039Z         type=_str_comma_separated_to_set,
2025-12-04T07:56:46.4356860Z         required=False,
2025-12-04T07:56:46.4357572Z         default="",
2025-12-04T07:56:46.4358980Z         help="comma separated list of experiments to check, if omitted all experiments marked with default=True are checked",
2025-12-04T07:56:46.4360692Z     )
2025-12-04T07:56:46.4361286Z     parser.add_argument(
2025-12-04T07:56:46.4362072Z         "--opt-out-experiments",
2025-12-04T07:56:46.4362951Z         type=_str_comma_separated_to_set,
2025-12-04T07:56:46.4363770Z         required=False,
2025-12-04T07:56:46.4364470Z         default="",
2025-12-04T07:56:46.4365136Z         help=(
2025-12-04T07:56:46.4366272Z             "comma separated list of experiments to opt-out of. If unset, no opt-outs will occur. "
2025-12-04T07:56:46.4368083Z             "If the same experiment is listed both here and in '--eligible-experiments' opt-out will take priority."
2025-12-04T07:56:46.4369434Z         ),
2025-12-04T07:56:46.4370219Z     )
2025-12-04T07:56:46.4370813Z     parser.add_argument(
2025-12-04T07:56:46.4371551Z         "--pr-number",
2025-12-04T07:56:46.4372296Z         type=str,
2025-12-04T07:56:46.4372984Z         required=False,
2025-12-04T07:56:46.4373685Z         default="",
2025-12-04T07:56:46.4374491Z         help="the optional PR number where this is run",
2025-12-04T07:56:46.4375395Z     )
2025-12-04T07:56:46.4375959Z 
2025-12-04T07:56:46.4376540Z     return parser.parse_args()
2025-12-04T07:56:46.4377270Z 
2025-12-04T07:56:46.4377802Z 
2025-12-04T07:56:46.4378773Z def get_gh_client(github_token: str) -> Github:  # type: ignore[no-any-unimported]
2025-12-04T07:56:46.4380337Z     auth = Auth.Token(github_token)
2025-12-04T07:56:46.4381182Z     return Github(auth=auth)
2025-12-04T07:56:46.4381956Z 
2025-12-04T07:56:46.4382485Z 
2025-12-04T07:56:46.4383502Z def get_issue(gh: Github, repo: str, issue_num: int) -> Issue:  # type: ignore[no-any-unimported]
2025-12-04T07:56:46.4384918Z     repo = gh.get_repo(repo)
2025-12-04T07:56:46.4385845Z     return repo.get_issue(number=issue_num)
2025-12-04T07:56:46.4386719Z 
2025-12-04T07:56:46.4387261Z 
2025-12-04T07:56:46.4387887Z def get_potential_pr_author(
2025-12-04T07:56:46.4389033Z     github_token: str, repo: str, username: str, ref_type: str, ref_name: str
2025-12-04T07:56:46.4390389Z ) -> str:
2025-12-04T07:56:46.4391330Z     # If the trigger was a new tag added by a bot, this is a ciflow case
2025-12-04T07:56:46.4392736Z     # Fetch the actual username from the original PR. The PR number is
2025-12-04T07:56:46.4394038Z     # embedded in the tag name: ciflow/<name>/<pr-number>
2025-12-04T07:56:46.4395035Z 
2025-12-04T07:56:46.4395679Z     gh = get_gh_client(github_token)
2025-12-04T07:56:46.4396502Z 
2025-12-04T07:56:46.4397283Z     if username == "pytorch-bot[bot]" and ref_type == "tag":
2025-12-04T07:56:46.4398637Z         split_tag = ref_name.split("/")
2025-12-04T07:56:46.4399487Z         if (
2025-12-04T07:56:46.4400357Z             len(split_tag) == 3
2025-12-04T07:56:46.4401233Z             and split_tag[0] == "ciflow"
2025-12-04T07:56:46.4402162Z             and split_tag[2].isnumeric()
2025-12-04T07:56:46.4402994Z         ):
2025-12-04T07:56:46.4403686Z             pr_number = split_tag[2]
2025-12-04T07:56:46.4404553Z             try:
2025-12-04T07:56:46.4405333Z                 repository = gh.get_repo(repo)
2025-12-04T07:56:46.4406397Z                 pull = repository.get_pull(number=int(pr_number))
2025-12-04T07:56:46.4407466Z             except Exception as e:
2025-12-04T07:56:46.4408385Z                 raise Exception(  # noqa: TRY002
2025-12-04T07:56:46.4409537Z                     f"issue with pull request {pr_number} from repo {repository}"
2025-12-04T07:56:46.4410943Z                 ) from e
2025-12-04T07:56:46.4411918Z             return pull.user.login  # type: ignore[no-any-return]
2025-12-04T07:56:46.4413158Z     # In all other cases, return the original input username
2025-12-04T07:56:46.4414188Z     return username
2025-12-04T07:56:46.4414898Z 
2025-12-04T07:56:46.4415458Z 
2025-12-04T07:56:46.4416186Z def is_exception_branch(branch: str) -> bool:
2025-12-04T07:56:46.4417105Z     """
2025-12-04T07:56:46.4418238Z     Branches that get opted out of experiments by default, until they're explicitly enabled.
2025-12-04T07:56:46.4419576Z     """
2025-12-04T07:56:46.4420717Z     return branch.split("/")[0] in {"main", "nightly", "release", "landchecks"}
2025-12-04T07:56:46.4421848Z 
2025-12-04T07:56:46.4422448Z 
2025-12-04T07:56:46.4423089Z def load_yaml(yaml_text: str) -> Any:
2025-12-04T07:56:46.4423946Z     try:
2025-12-04T07:56:46.4424626Z         data = yaml.safe_load(yaml_text)
2025-12-04T07:56:46.4425532Z         return data
2025-12-04T07:56:46.4426295Z     except yaml.YAMLError:
2025-12-04T07:56:46.4427157Z         log.exception("Error loading YAML")
2025-12-04T07:56:46.4428059Z         raise
2025-12-04T07:56:46.4428722Z 
2025-12-04T07:56:46.4429278Z 
2025-12-04T07:56:46.4430506Z def extract_settings_user_opt_in_from_text(rollout_state: str) -> tuple[str, str]:
2025-12-04T07:56:46.4431809Z     """
2025-12-04T07:56:46.4433105Z     Extracts the text with settings, if any, and the opted in users from the rollout state.
2025-12-04T07:56:46.4434411Z 
2025-12-04T07:56:46.4435327Z     If the issue body contains "---" then the text above that is the settings
2025-12-04T07:56:46.4436628Z     and the text below is the list of opted in users.
2025-12-04T07:56:46.4437602Z 
2025-12-04T07:56:46.4438567Z     If it doesn't contain "---" then the settings are empty and the rest is the users.
2025-12-04T07:56:46.4439768Z     """
2025-12-04T07:56:46.4440772Z     rollout_state_parts = rollout_state.split("---")
2025-12-04T07:56:46.4441802Z     if len(rollout_state_parts) >= 2:
2025-12-04T07:56:46.4442875Z         return rollout_state_parts[0], rollout_state_parts[1]
2025-12-04T07:56:46.4443911Z     else:
2025-12-04T07:56:46.4444589Z         return "", rollout_state
2025-12-04T07:56:46.4445372Z 
2025-12-04T07:56:46.4445946Z 
2025-12-04T07:56:46.4446642Z class UserOptins(dict[str, list[str]]):
2025-12-04T07:56:46.4447516Z     """
2025-12-04T07:56:46.4448425Z     Dictionary of users with a list of features they have opted into
2025-12-04T07:56:46.4449539Z     """
2025-12-04T07:56:46.4450364Z 
2025-12-04T07:56:46.4451134Z 
2025-12-04T07:56:46.4452036Z def parse_user_opt_in_from_text(user_optin_text: str) -> UserOptins:
2025-12-04T07:56:46.4453247Z     """
2025-12-04T07:56:46.4454497Z     Parse the user opt-in text into a key value pair of username and the list of features they have opted into
2025-12-04T07:56:46.4455944Z 
2025-12-04T07:56:46.4457322Z     Users are GitHub usernames with the @ prefix. Each user is also a comma-separated list of features/experiments to enable.
2025-12-04T07:56:46.4459049Z         - Example line: "@User1,lf,split_build"
2025-12-04T07:56:46.4460419Z         - A "#" prefix indicates the user is opted out of all experiments
2025-12-04T07:56:46.4461500Z 
2025-12-04T07:56:46.4462080Z 
2025-12-04T07:56:46.4462639Z     """
2025-12-04T07:56:46.4463277Z     optins = UserOptins()
2025-12-04T07:56:46.4464150Z     for user in user_optin_text.split("\n"):
2025-12-04T07:56:46.4465147Z         user = user.strip("\r\n\t -")
2025-12-04T07:56:46.4466105Z         if not user or not user.startswith("@"):
2025-12-04T07:56:46.4467056Z             # Not a valid user. Skip
2025-12-04T07:56:46.4467908Z             continue
2025-12-04T07:56:46.4468622Z 
2025-12-04T07:56:46.4469197Z         if user:
2025-12-04T07:56:46.4470155Z             usr_name = user.split(",")[0].strip("@")
2025-12-04T07:56:46.4471373Z             optins[usr_name] = [exp.strip(" ") for exp in user.split(",")[1:]]
2025-12-04T07:56:46.4472450Z 
2025-12-04T07:56:46.4473047Z     return optins
2025-12-04T07:56:46.4473732Z 
2025-12-04T07:56:46.4474313Z 
2025-12-04T07:56:46.4475150Z def is_valid_experiment_name(experiment_name: str) -> bool:
2025-12-04T07:56:46.4476190Z     """
2025-12-04T07:56:46.4476908Z     Check if the experiment name is valid.
2025-12-04T07:56:46.4477831Z     A valid name:
2025-12-04T07:56:46.4478975Z         - Contains only alphanumeric characters and the special characters "_" & "-"
2025-12-04T07:56:46.4480866Z         - The special characters "_" & "-" shouldn't be the first or last characters
2025-12-04T07:56:46.4482094Z         - Cannot contain spaces
2025-12-04T07:56:46.4483096Z     """
2025-12-04T07:56:46.4483863Z 
2025-12-04T07:56:46.4484659Z     valid_char_regex = r"^[a-zA-Z0-9]([\w-]*[a-zA-Z0-9])?$"
2025-12-04T07:56:46.4485875Z     valid = bool(re.match(valid_char_regex, experiment_name))
2025-12-04T07:56:46.4487126Z 
2025-12-04T07:56:46.4487737Z     if valid:
2025-12-04T07:56:46.4488420Z         return True
2025-12-04T07:56:46.4489109Z 
2025-12-04T07:56:46.4489686Z     log.error(
2025-12-04T07:56:46.4492413Z         f"Invalid experiment name: {experiment_name}. Experiment names should only contain alphanumeric characters, '_', and '-'. They cannot contain spaces, and the special characters '_' and '-' cannot be the first or last characters."
2025-12-04T07:56:46.4495045Z     )
2025-12-04T07:56:46.4495672Z     return False
2025-12-04T07:56:46.4496369Z 
2025-12-04T07:56:46.4496932Z 
2025-12-04T07:56:46.4497783Z def parse_settings_from_text(settings_text: str) -> Settings:
2025-12-04T07:56:46.4498859Z     """
2025-12-04T07:56:46.4499918Z     Parse the experiments from the issue body into a list of ExperimentSettings
2025-12-04T07:56:46.4501321Z     """
2025-12-04T07:56:46.4501943Z     try:
2025-12-04T07:56:46.4502599Z         if settings_text:
2025-12-04T07:56:46.4503885Z             # Escape the backtick as well so that we can have the settings in a code block on the GH issue
2025-12-04T07:56:46.4505233Z             # for easy reading
2025-12-04T07:56:46.4506875Z             # Note: Using ascii for the backtick so that the cat step in _runner-determinator.yml doesn't choke on
2025-12-04T07:56:46.4508415Z             #       the backtick character in shell commands.
2025-12-04T07:56:46.4509474Z             backtick = chr(96)  # backtick character
2025-12-04T07:56:46.4510807Z             settings_text = settings_text.strip(f"\r\n\t{backtick} ")
2025-12-04T07:56:46.4511974Z             settings = load_yaml(settings_text)
2025-12-04T07:56:46.4512850Z 
2025-12-04T07:56:46.4513855Z             # For now we just load experiments. We can expand this if/when we add more settings
2025-12-04T07:56:46.4515146Z             experiments = {}
2025-12-04T07:56:46.4515925Z 
2025-12-04T07:56:46.4516853Z             for exp_name, exp_settings in settings.get(SETTING_EXPERIMENTS).items():
2025-12-04T07:56:46.4518186Z                 if not is_valid_experiment_name(exp_name):
2025-12-04T07:56:46.4520231Z                     # Exclude invalid experiments from the list. We log an error, but don't raise an exception so that other experiments can still be processed.
2025-12-04T07:56:46.4522023Z                     continue
2025-12-04T07:56:46.4522790Z 
2025-12-04T07:56:46.4523399Z                 valid_settings = {}
2025-12-04T07:56:46.4524326Z                 for setting in exp_settings:
2025-12-04T07:56:46.4525286Z                     if setting not in Experiment._fields:
2025-12-04T07:56:46.4526227Z                         log.warning(
2025-12-04T07:56:46.4527482Z                             f"Unexpected setting in experiment: {setting} = {exp_settings[setting]}"
2025-12-04T07:56:46.4528683Z                         )
2025-12-04T07:56:46.4529436Z                     else:
2025-12-04T07:56:46.4530634Z                         valid_settings[setting] = exp_settings[setting]
2025-12-04T07:56:46.4531617Z 
2025-12-04T07:56:46.4532386Z                 experiments[exp_name] = Experiment(**valid_settings)
2025-12-04T07:56:46.4533485Z             return Settings(experiments)
2025-12-04T07:56:46.4534312Z 
2025-12-04T07:56:46.4534901Z     except Exception:
2025-12-04T07:56:46.4535756Z         log.exception("Failed to parse settings")
2025-12-04T07:56:46.4536663Z 
2025-12-04T07:56:46.4537261Z     return Settings()
2025-12-04T07:56:46.4537969Z 
2025-12-04T07:56:46.4538530Z 
2025-12-04T07:56:46.4539527Z def parse_settings(rollout_state: str) -> Settings:
2025-12-04T07:56:46.4540713Z     """
2025-12-04T07:56:46.4541471Z     Parse settings, if any, from the rollout state.
2025-12-04T07:56:46.4542405Z 
2025-12-04T07:56:46.4543313Z     If the issue body contains "---" then the text above that is the settings
2025-12-04T07:56:46.4544616Z     and the text below is the list of opted in users.
2025-12-04T07:56:46.4545577Z 
2025-12-04T07:56:46.4546581Z     If it doesn't contain "---" then the settings are empty and the default values are used.
2025-12-04T07:56:46.4547802Z     """
2025-12-04T07:56:46.4548799Z     settings_text, _ = extract_settings_user_opt_in_from_text(rollout_state)
2025-12-04T07:56:46.4550282Z     return parse_settings_from_text(settings_text)
2025-12-04T07:56:46.4551227Z 
2025-12-04T07:56:46.4551793Z 
2025-12-04T07:56:46.4552554Z def parse_users(rollout_state: str) -> UserOptins:
2025-12-04T07:56:46.4553577Z     """
2025-12-04T07:56:46.4554272Z     Parse users from the rollout state.
2025-12-04T07:56:46.4555147Z 
2025-12-04T07:56:46.4555702Z     """
2025-12-04T07:56:46.4556635Z     _, users_text = extract_settings_user_opt_in_from_text(rollout_state)
2025-12-04T07:56:46.4558133Z     return parse_user_opt_in_from_text(users_text)
2025-12-04T07:56:46.4559075Z 
2025-12-04T07:56:46.4559622Z 
2025-12-04T07:56:46.4560836Z def is_user_opted_in(user: str, user_optins: UserOptins, experiment_name: str) -> bool:
2025-12-04T07:56:46.4562142Z     """
2025-12-04T07:56:46.4562881Z     Check if a user is opted into an experiment
2025-12-04T07:56:46.4563775Z     """
2025-12-04T07:56:46.4564592Z     return experiment_name in user_optins.get(user, [])
2025-12-04T07:56:46.4565597Z 
2025-12-04T07:56:46.4566147Z 
2025-12-04T07:56:46.4567207Z def is_user_opted_out(user: str, user_optins: UserOptins, experiment_name: str) -> bool:
2025-12-04T07:56:46.4568503Z     """
2025-12-04T07:56:46.4569315Z     Check if a user explicitly opted out of an experiment
2025-12-04T07:56:46.4570555Z     """
2025-12-04T07:56:46.4571479Z     # if the experiment is prefixed with a "-", then it's an opt-out
2025-12-04T07:56:46.4572663Z     experiment_optout = "-" + experiment_name
2025-12-04T07:56:46.4573756Z     if experiment_optout not in user_optins.get(user, []):
2025-12-04T07:56:46.4574791Z         return False
2025-12-04T07:56:46.4575484Z 
2025-12-04T07:56:46.4576261Z     if is_user_opted_in(user, user_optins, experiment_name):
2025-12-04T07:56:46.4577303Z         log.warning(
2025-12-04T07:56:46.4578702Z             f"User {user} is opted into experiment {experiment_name}, but also opted out of it. Defaulting to opting out"
2025-12-04T07:56:46.4580380Z         )
2025-12-04T07:56:46.4581014Z 
2025-12-04T07:56:46.4581589Z     return True
2025-12-04T07:56:46.4582247Z 
2025-12-04T07:56:46.4582826Z 
2025-12-04T07:56:46.4583457Z def get_runner_prefix(
2025-12-04T07:56:46.4584240Z     rollout_state: str,
2025-12-04T07:56:46.4585067Z     workflow_requestors: Iterable[str],
2025-12-04T07:56:46.4585955Z     branch: str,
2025-12-04T07:56:46.4586857Z     eligible_experiments: frozenset[str] = frozenset(),
2025-12-04T07:56:46.4588006Z     opt_out_experiments: frozenset[str] = frozenset(),
2025-12-04T07:56:46.4589035Z     is_canary: bool = False,
2025-12-04T07:56:46.4589829Z ) -> str:
2025-12-04T07:56:46.4590761Z     settings = parse_settings(rollout_state)
2025-12-04T07:56:46.4591776Z     user_optins = parse_users(rollout_state)
2025-12-04T07:56:46.4592666Z 
2025-12-04T07:56:46.4593475Z     fleet_prefix = ""
2025-12-04T07:56:46.4594221Z     prefixes = []
2025-12-04T07:56:46.4595361Z     for experiment_name, experiment_settings in settings.experiments.items():
2025-12-04T07:56:46.4596974Z         if not experiment_settings.all_branches and is_exception_branch(branch):
2025-12-04T07:56:46.4598209Z             log.info(
2025-12-04T07:56:46.4599409Z                 f"Branch {branch} is an exception branch. Not enabling experiment {experiment_name}."
2025-12-04T07:56:46.4600863Z             )
2025-12-04T07:56:46.4601568Z             continue
2025-12-04T07:56:46.4602262Z 
2025-12-04T07:56:46.4602875Z         if opt_out_experiments:
2025-12-04T07:56:46.4603818Z             if experiment_name in opt_out_experiments:
2025-12-04T07:56:46.4604920Z                 opt_out_exp_list = ", ".join(opt_out_experiments)
2025-12-04T07:56:46.4605906Z                 log.info(
2025-12-04T07:56:46.4607496Z                     f"Skipping experiment '{experiment_name}', as this workflow has opted-out (opted out experiments are: {opt_out_exp_list})"
2025-12-04T07:56:46.4609149Z                 )
2025-12-04T07:56:46.4609870Z                 continue
2025-12-04T07:56:46.4611211Z 
2025-12-04T07:56:46.4611838Z         if eligible_experiments:
2025-12-04T07:56:46.4612812Z             if experiment_name not in eligible_experiments:
2025-12-04T07:56:46.4613927Z                 exp_list = ", ".join(eligible_experiments)
2025-12-04T07:56:46.4614851Z                 log.info(
2025-12-04T07:56:46.4616229Z                     f"Skipping experiment '{experiment_name}', as it is not in the eligible_experiments list: {exp_list}"
2025-12-04T07:56:46.4617653Z                 )
2025-12-04T07:56:46.4618357Z                 continue
2025-12-04T07:56:46.4619238Z         elif not experiment_settings.default:
2025-12-04T07:56:46.4620331Z             log.info(
2025-12-04T07:56:46.4621502Z                 f"Skipping experiment '{experiment_name}', as it is not a default experiment"
2025-12-04T07:56:46.4622753Z             )
2025-12-04T07:56:46.4623450Z             continue
2025-12-04T07:56:46.4624133Z 
2025-12-04T07:56:46.4624918Z         # Is any workflow_requestor opted out to this experiment?
2025-12-04T07:56:46.4625984Z         opted_out_users = [
2025-12-04T07:56:46.4626781Z             requestor
2025-12-04T07:56:46.4627601Z             for requestor in workflow_requestors
2025-12-04T07:56:46.4628744Z             if is_user_opted_out(requestor, user_optins, experiment_name)
2025-12-04T07:56:46.4629816Z         ]
2025-12-04T07:56:46.4630605Z 
2025-12-04T07:56:46.4631200Z         if opted_out_users:
2025-12-04T07:56:46.4632031Z             log.info(
2025-12-04T07:56:46.4633119Z                 f"{', '.join(opted_out_users)} have opted out of experiment {experiment_name}."
2025-12-04T07:56:46.4634286Z             )
2025-12-04T07:56:46.4634957Z             continue
2025-12-04T07:56:46.4635691Z 
2025-12-04T07:56:46.4636458Z         # Is any workflow_requestor opted in to this experiment?
2025-12-04T07:56:46.4637487Z         opted_in_users = [
2025-12-04T07:56:46.4638286Z             requestor
2025-12-04T07:56:46.4639116Z             for requestor in workflow_requestors
2025-12-04T07:56:46.4640422Z             if is_user_opted_in(requestor, user_optins, experiment_name)
2025-12-04T07:56:46.4641484Z         ]
2025-12-04T07:56:46.4642113Z 
2025-12-04T07:56:46.4642698Z         enabled = False
2025-12-04T07:56:46.4643465Z         if opted_in_users:
2025-12-04T07:56:46.4644469Z             log.info(
2025-12-04T07:56:46.4645567Z                 f"{', '.join(opted_in_users)} have opted into experiment {experiment_name}."
2025-12-04T07:56:46.4646715Z             )
2025-12-04T07:56:46.4647416Z             enabled = True
2025-12-04T07:56:46.4648181Z 
2025-12-04T07:56:46.4648864Z         elif experiment_settings.rollout_perc:
2025-12-04T07:56:46.4650515Z             # If no user is opted in, then we randomly enable the experiment based on the rollout percentage
2025-12-04T07:56:46.4652106Z             if random.uniform(0, 100) <= experiment_settings.rollout_perc:
2025-12-04T07:56:46.4653278Z                 log.info(
2025-12-04T07:56:46.4654802Z                     f"Based on rollout percentage of {experiment_settings.rollout_perc}%, enabling experiment {experiment_name}."
2025-12-04T07:56:46.4656362Z                 )
2025-12-04T07:56:46.4657115Z                 enabled = True
2025-12-04T07:56:46.4657880Z 
2025-12-04T07:56:46.4658453Z         if enabled:
2025-12-04T07:56:46.4659226Z             label = experiment_name
2025-12-04T07:56:46.4660386Z             if experiment_name == LF_FLEET_EXPERIMENT:
2025-12-04T07:56:46.4662012Z                 # We give some special treatment to the "lf" experiment since determines the fleet we use
2025-12-04T07:56:46.4663505Z                 #  - If it's enabled, then we always list it's prefix first
2025-12-04T07:56:46.4664788Z                 #  - If we're in the canary branch, then we append ".c" to the lf prefix
2025-12-04T07:56:46.4665913Z                 if is_canary:
2025-12-04T07:56:46.4666790Z                     label += CANARY_FLEET_SUFFIX
2025-12-04T07:56:46.4667705Z                 fleet_prefix = label
2025-12-04T07:56:46.4668538Z             else:
2025-12-04T07:56:46.4669342Z                 prefixes.append(label)
2025-12-04T07:56:46.4670376Z 
2025-12-04T07:56:46.4670983Z     if len(prefixes) > 1:
2025-12-04T07:56:46.4671746Z         log.error(
2025-12-04T07:56:46.4673538Z             f"Only a fleet and one other experiment can be enabled for a job at any time. Enabling {prefixes[0]} and ignoring the rest, which are {', '.join(prefixes[1:])}"
2025-12-04T07:56:46.4675459Z         )
2025-12-04T07:56:46.4676144Z         prefixes = prefixes[:1]
2025-12-04T07:56:46.4676954Z 
2025-12-04T07:56:46.4677552Z     # Fleet always comes first
2025-12-04T07:56:46.4678461Z     if fleet_prefix:
2025-12-04T07:56:46.4679271Z         prefixes.insert(0, fleet_prefix)
2025-12-04T07:56:46.4680293Z 
2025-12-04T07:56:46.4681042Z     return ".".join(prefixes) + "." if prefixes else ""
2025-12-04T07:56:46.4682011Z 
2025-12-04T07:56:46.4682575Z 
2025-12-04T07:56:46.4683636Z def get_rollout_state_from_issue(github_token: str, repo: str, issue_num: int) -> str:
2025-12-04T07:56:46.4684953Z     """
2025-12-04T07:56:46.4685956Z     Gets the first comment of the issue, which contains the desired rollout state.
2025-12-04T07:56:46.4687144Z 
2025-12-04T07:56:46.4688144Z     The default issue we use - https://github.com/pytorch/test-infra/issues/5132
2025-12-04T07:56:46.4689317Z     """
2025-12-04T07:56:46.4690231Z     gh = get_gh_client(github_token)
2025-12-04T07:56:46.4691187Z     issue = get_issue(gh, repo, issue_num)
2025-12-04T07:56:46.4692288Z     return str(issue.get_comments()[0].body.strip("\n\t "))
2025-12-04T07:56:46.4693291Z 
2025-12-04T07:56:46.4693857Z 
2025-12-04T07:56:46.4694876Z def download_json(url: str, headers: dict[str, str], num_retries: int = 3) -> Any:
2025-12-04T07:56:46.4696342Z     for _ in range(num_retries):
2025-12-04T07:56:46.4697175Z         try:
2025-12-04T07:56:46.4697943Z             req = Request(url=url, headers=headers)
2025-12-04T07:56:46.4699058Z             content = urlopen(req, timeout=5).read().decode("utf-8")
2025-12-04T07:56:46.4700331Z             return json.loads(content)
2025-12-04T07:56:46.4701288Z         except Exception as e:
2025-12-04T07:56:46.4702259Z             log.warning(f"Could not download {url}: {e}")
2025-12-04T07:56:46.4703173Z 
2025-12-04T07:56:46.4704155Z     log.warning(f"All {num_retries} retries exhausted, downloading {url} failed")
2025-12-04T07:56:46.4705358Z     return {}
2025-12-04T07:56:46.4706006Z 
2025-12-04T07:56:46.4706564Z 
2025-12-04T07:56:46.4707148Z @cache
2025-12-04T07:56:46.4708215Z def get_pr_info(github_repo: str, github_token: str, pr_number: int) -> dict[str, Any]:
2025-12-04T07:56:46.4709499Z     """
2025-12-04T07:56:46.4710396Z     Dynamically get PR information
2025-12-04T07:56:46.4711231Z     """
2025-12-04T07:56:46.4712093Z     github_api = f"https://api.github.com/repos/{github_repo}"
2025-12-04T07:56:46.4713157Z     headers = {
2025-12-04T07:56:46.4713983Z         "Accept": "application/vnd.github.v3+json",
2025-12-04T07:56:46.4715219Z         "Authorization": f"token {github_token}",
2025-12-04T07:56:46.4716135Z     }
2025-12-04T07:56:46.4716893Z     json_response: dict[str, Any] = download_json(
2025-12-04T07:56:46.4717913Z         url=f"{github_api}/issues/{pr_number}",
2025-12-04T07:56:46.4718822Z         headers=headers,
2025-12-04T07:56:46.4719578Z     )
2025-12-04T07:56:46.4720350Z 
2025-12-04T07:56:46.4720943Z     if not json_response:
2025-12-04T07:56:46.4721971Z         log.warning(f"Failed to get the labels for #{pr_number}")
2025-12-04T07:56:46.4723056Z         return {}
2025-12-04T07:56:46.4723740Z 
2025-12-04T07:56:46.4724341Z     return json_response
2025-12-04T07:56:46.4725101Z 
2025-12-04T07:56:46.4725673Z 
2025-12-04T07:56:46.4726651Z def get_labels(github_repo: str, github_token: str, pr_number: int) -> set[str]:
2025-12-04T07:56:46.4727880Z     """
2025-12-04T07:56:46.4728797Z     Dynamically get the latest list of labels from the pull request
2025-12-04T07:56:46.4729892Z     """
2025-12-04T07:56:46.4730984Z     pr_info = get_pr_info(github_repo, github_token, pr_number)
2025-12-04T07:56:46.4732031Z     return {
2025-12-04T07:56:46.4733040Z         label.get("name") for label in pr_info.get("labels", []) if label.get("name")
2025-12-04T07:56:46.4734201Z     }
2025-12-04T07:56:46.4734804Z 
2025-12-04T07:56:46.4735359Z 
2025-12-04T07:56:46.4735957Z def main() -> None:
2025-12-04T07:56:46.4736697Z     args = parse_args()
2025-12-04T07:56:46.4737455Z 
2025-12-04T07:56:46.4738155Z     runner_label_prefix = DEFAULT_LABEL_PREFIX
2025-12-04T07:56:46.4739038Z 
2025-12-04T07:56:46.4739659Z     # Check if the PR is opt-out
2025-12-04T07:56:46.4740741Z     if args.pr_number:
2025-12-04T07:56:46.4741906Z         labels = get_labels(args.github_repo, args.github_token, int(args.pr_number))
2025-12-04T07:56:46.4743170Z         if OPT_OUT_LABEL in labels:
2025-12-04T07:56:46.4744039Z             log.info(
2025-12-04T07:56:46.4745241Z                 f"Opt-out runner determinator because #{args.pr_number} has {OPT_OUT_LABEL} label"
2025-12-04T07:56:46.4746528Z             )
2025-12-04T07:56:46.4747501Z             set_github_output(GH_OUTPUT_KEY_LABEL_TYPE, runner_label_prefix)
2025-12-04T07:56:46.4748626Z             sys.exit()
2025-12-04T07:56:46.4749574Z 
2025-12-04T07:56:46.4750361Z     try:
2025-12-04T07:56:46.4751131Z         rollout_state = get_rollout_state_from_issue(
2025-12-04T07:56:46.4752384Z             args.github_token, args.github_issue_repo, args.github_issue
2025-12-04T07:56:46.4753560Z         )
2025-12-04T07:56:46.4754326Z 
2025-12-04T07:56:46.4754987Z         username = get_potential_pr_author(
2025-12-04T07:56:46.4755924Z             args.github_token,
2025-12-04T07:56:46.4756766Z             args.github_repo,
2025-12-04T07:56:46.4757597Z             args.github_actor,
2025-12-04T07:56:46.4758438Z             args.github_ref_type,
2025-12-04T07:56:46.4759324Z             args.github_branch,
2025-12-04T07:56:46.4760293Z         )
2025-12-04T07:56:46.4760912Z 
2025-12-04T07:56:46.4761717Z         is_canary = args.github_repo == "pytorch/pytorch-canary"
2025-12-04T07:56:46.4762749Z 
2025-12-04T07:56:46.4763435Z         runner_label_prefix = get_runner_prefix(
2025-12-04T07:56:46.4764343Z             rollout_state,
2025-12-04T07:56:46.4765213Z             (args.github_issue_owner, username),
2025-12-04T07:56:46.4766149Z             args.github_branch,
2025-12-04T07:56:46.4767234Z             args.eligible_experiments,
2025-12-04T07:56:46.4768171Z             args.opt_out_experiments,
2025-12-04T07:56:46.4769040Z             is_canary,
2025-12-04T07:56:46.4769808Z         )
2025-12-04T07:56:46.4770752Z 
2025-12-04T07:56:46.4771369Z     except Exception as e:
2025-12-04T07:56:46.4772170Z         log.error(
2025-12-04T07:56:46.4773359Z             f"Failed to get issue. Defaulting to Meta runners and no experiments. Exception: {e}"
2025-12-04T07:56:46.4774624Z         )
2025-12-04T07:56:46.4775408Z 
2025-12-04T07:56:46.4776310Z     set_github_output(GH_OUTPUT_KEY_LABEL_TYPE, runner_label_prefix)
2025-12-04T07:56:46.4777397Z 
2025-12-04T07:56:46.4777957Z 
2025-12-04T07:56:46.4778560Z if __name__ == "__main__":
2025-12-04T07:56:46.4779347Z     main()
2025-12-04T07:56:46.4780156Z 
2025-12-04T07:56:46.4780719Z EOF
2025-12-04T07:56:46.4781300Z 
2025-12-04T07:56:46.4781923Z cat runner_determinator.py
2025-12-04T07:56:46.5292778Z shell: /usr/bin/bash -e {0}
2025-12-04T07:56:46.5293822Z env:
2025-12-04T07:56:46.5294497Z   GITHUB_TOKEN: ***
2025-12-04T07:56:46.5294908Z   ISSUE_NUMBER: 5132
2025-12-04T07:56:46.5295356Z   TRIGGERING_ACTOR: pytorchmergebot
2025-12-04T07:56:46.5295847Z   ISSUE_OWNER: 
2025-12-04T07:56:46.5296231Z   CHECK_EXPERIMENTS: 
2025-12-04T07:56:46.5296662Z   OPT_OUT_EXPERIMENTS: 
2025-12-04T07:56:46.5297071Z   PR_NUMBER: 
2025-12-04T07:56:46.5297453Z ##[endgroup]
2025-12-04T07:56:46.5539669Z # flake8: noqa: G004
2025-12-04T07:56:46.5540217Z 
2025-12-04T07:56:46.5540701Z # Note: Copies of this script in runner_determinator.py and _runner-determinator.yml
2025-12-04T07:56:46.5541625Z #       must be kept in sync. You can do it easily by running the following command:
2025-12-04T07:56:46.5542428Z #           python .github/scripts/update_runner_determinator.py
2025-12-04T07:56:46.5542865Z 
2025-12-04T07:56:46.5543038Z """
2025-12-04T07:56:46.5543607Z This runner determinator is used to determine which set of runners to run a
2025-12-04T07:56:46.5544466Z GitHub job on. It uses the first comment of a GitHub issue (by default
2025-12-04T07:56:46.5545350Z https://github.com/pytorch/test-infra/issues/5132) to define the configuration
2025-12-04T07:56:46.5546153Z of which runners should be used to run which job.
2025-12-04T07:56:46.5546531Z 
2025-12-04T07:56:46.5546903Z The configuration has two parts, the settings and a list of opted-in users,
2025-12-04T07:56:46.5547960Z separated by a line containing "---".  If the line is not present, the
2025-12-04T07:56:46.5548815Z settings are considered to be empty with only the second part, the user
2025-12-04T07:56:46.5549482Z list, defined.
2025-12-04T07:56:46.5549706Z 
2025-12-04T07:56:46.5550310Z The first part is a YAML block that defines the rollout settings. This can be
2025-12-04T07:56:46.5551199Z used to define any settings that are needed to determine which runners to use.
2025-12-04T07:56:46.5551996Z It's fields are defined by the RolloutSettings class below.
2025-12-04T07:56:46.5552435Z 
2025-12-04T07:56:46.5552808Z The second part is a list of users who are explicitly opted in to the LF fleet.
2025-12-04T07:56:46.5553655Z The user list is also a comma separated list of additional features or
2025-12-04T07:56:46.5554387Z experiments which the user could be opted in to.
2025-12-04T07:56:46.5554773Z 
2025-12-04T07:56:46.5554976Z The user list has the following rules:
2025-12-04T07:56:46.5555311Z 
2025-12-04T07:56:46.5555619Z - Users are GitHub usernames, which must start with the @ prefix
2025-12-04T07:56:46.5556443Z - Each user is also a comma-separated list of features/experiments to enable
2025-12-04T07:56:46.5557193Z - A "#" prefix opts the user out of all experiments
2025-12-04T07:56:46.5557574Z 
2025-12-04T07:56:46.5557747Z Example config:
2025-12-04T07:56:46.5558204Z     # A list of experiments that can be opted into.
2025-12-04T07:56:46.5559014Z     # This defines the behavior they'll induce when opted into.
2025-12-04T07:56:46.5559614Z     # Expected syntax is:
2025-12-04T07:56:46.5560433Z     #   [experiment_name]: # Name of the experiment. Also used for the label prefix.
2025-12-04T07:56:46.5561361Z     #      rollout_perc: [int] # % of workflows to run with this experiment when users are not opted in.
2025-12-04T07:56:46.5561945Z 
2025-12-04T07:56:46.5562113Z     experiments:
2025-12-04T07:56:46.5562498Z       lf:
2025-12-04T07:56:46.5562861Z         rollout_percent: 25
2025-12-04T07:56:46.5563317Z         all_branches: false
2025-12-04T07:56:46.5563751Z         default: true
2025-12-04T07:56:46.5564160Z     ---
2025-12-04T07:56:46.5564346Z 
2025-12-04T07:56:46.5564507Z     # Opt-ins:
2025-12-04T07:56:46.5565071Z     # Users can opt into the LF fleet by adding their GitHub username to this list
2025-12-04T07:56:46.5565887Z     # and specifying experiments to enable in a comma-separated list.
2025-12-04T07:56:46.5566647Z     # To always opt out of an experiment, prefix it with a "-".
2025-12-04T07:56:46.5567287Z     # Experiments should be from the above list.
2025-12-04T07:56:46.5567643Z 
2025-12-04T07:56:46.5567825Z     @User1,-lf,split_build
2025-12-04T07:56:46.5568248Z     @User2,lf
2025-12-04T07:56:46.5568638Z     @User3,split_build
2025-12-04T07:56:46.5569046Z """
2025-12-04T07:56:46.5569242Z 
2025-12-04T07:56:46.5569415Z import json
2025-12-04T07:56:46.5569789Z import logging
2025-12-04T07:56:46.5570330Z import os
2025-12-04T07:56:46.5570685Z import random
2025-12-04T07:56:46.5571046Z import re
2025-12-04T07:56:46.5571406Z import sys
2025-12-04T07:56:46.5571820Z from argparse import ArgumentParser
2025-12-04T07:56:46.5572319Z from collections.abc import Iterable
2025-12-04T07:56:46.5572816Z from functools import cache
2025-12-04T07:56:46.5573293Z from logging import LogRecord
2025-12-04T07:56:46.5573765Z from typing import Any, NamedTuple
2025-12-04T07:56:46.5574286Z from urllib.request import Request, urlopen
2025-12-04T07:56:46.5574639Z 
2025-12-04T07:56:46.5574800Z import yaml
2025-12-04T07:56:46.5575171Z from github import Auth, Github
2025-12-04T07:56:46.5575683Z from github.Issue import Issue
2025-12-04T07:56:46.5575968Z 
2025-12-04T07:56:46.5575975Z 
2025-12-04T07:56:46.5576200Z DEFAULT_LABEL_PREFIX = ""  # use meta runners
2025-12-04T07:56:46.5576846Z WORKFLOW_LABEL_LF = "lf."  # use runners from the linux foundation
2025-12-04T07:56:46.5577658Z WORKFLOW_LABEL_LF_CANARY = "lf.c."  # use canary runners from the linux foundation
2025-12-04T07:56:46.5578180Z 
2025-12-04T07:56:46.5578402Z GITHUB_OUTPUT = os.getenv("GITHUB_OUTPUT", "")
2025-12-04T07:56:46.5579075Z GH_OUTPUT_KEY_AMI = "runner-ami"
2025-12-04T07:56:46.5579601Z GH_OUTPUT_KEY_LABEL_TYPE = "label-type"
2025-12-04T07:56:46.5580317Z OPT_OUT_LABEL = "no-runner-experiments"
2025-12-04T07:56:46.5580657Z 
2025-12-04T07:56:46.5580855Z SETTING_EXPERIMENTS = "experiments"
2025-12-04T07:56:46.5581162Z 
2025-12-04T07:56:46.5581361Z LF_FLEET_EXPERIMENT = "lf"
2025-12-04T07:56:46.5581829Z CANARY_FLEET_SUFFIX = ".c"
2025-12-04T07:56:46.5582096Z 
2025-12-04T07:56:46.5582103Z 
2025-12-04T07:56:46.5582287Z class Experiment(NamedTuple):
2025-12-04T07:56:46.5582756Z     rollout_perc: float = (
2025-12-04T07:56:46.5583356Z         0  # Percentage of workflows to experiment on when user is not opted-in.
2025-12-04T07:56:46.5584001Z     )
2025-12-04T07:56:46.5584378Z     all_branches: bool = (
2025-12-04T07:56:46.5584965Z         False  # If True, the experiment is also enabled on the exception branches
2025-12-04T07:56:46.5585608Z     )
2025-12-04T07:56:46.5585946Z     default: bool = (
2025-12-04T07:56:46.5586488Z         True  # If True, the experiment is enabled by default for all queries
2025-12-04T07:56:46.5587087Z     )
2025-12-04T07:56:46.5587292Z 
2025-12-04T07:56:46.5587483Z     # Add more fields as needed
2025-12-04T07:56:46.5587765Z 
2025-12-04T07:56:46.5587771Z 
2025-12-04T07:56:46.5587959Z class Settings(NamedTuple):
2025-12-04T07:56:46.5588518Z     """
2025-12-04T07:56:46.5588976Z     Settings for the experiments that can be opted into.
2025-12-04T07:56:46.5589521Z     """
2025-12-04T07:56:46.5589715Z 
2025-12-04T07:56:46.5589926Z     experiments: dict[str, Experiment] = {}
2025-12-04T07:56:46.5590503Z 
2025-12-04T07:56:46.5590512Z 
2025-12-04T07:56:46.5590727Z class ColorFormatter(logging.Formatter):
2025-12-04T07:56:46.5591340Z     """Color codes the log messages based on the log level"""
2025-12-04T07:56:46.5591746Z 
2025-12-04T07:56:46.5591917Z     COLORS = {
2025-12-04T07:56:46.5592303Z         "WARNING": "\033[33m",  # Yellow
2025-12-04T07:56:46.5592808Z         "ERROR": "\033[31m",  # Red
2025-12-04T07:56:46.5593276Z         "CRITICAL": "\033[31m",  # Red
2025-12-04T07:56:46.5593757Z         "INFO": "\033[0m",  # Reset
2025-12-04T07:56:46.5594219Z         "DEBUG": "\033[0m",  # Reset
2025-12-04T07:56:46.5594695Z     }
2025-12-04T07:56:46.5594883Z 
2025-12-04T07:56:46.5595093Z     def format(self, record: LogRecord) -> str:
2025-12-04T07:56:46.5595810Z         log_color = self.COLORS.get(record.levelname, "\033[0m")  # Default to reset
2025-12-04T07:56:46.5596569Z         record.msg = f"{log_color}{record.msg}\033[0m"
2025-12-04T07:56:46.5597120Z         return super().format(record)
2025-12-04T07:56:46.5597431Z 
2025-12-04T07:56:46.5597437Z 
2025-12-04T07:56:46.5597633Z handler = logging.StreamHandler()
2025-12-04T07:56:46.5598320Z handler.setFormatter(ColorFormatter(fmt="%(levelname)-8s: %(message)s"))
2025-12-04T07:56:46.5598859Z 
2025-12-04T07:56:46.5599115Z log = logging.getLogger(os.path.basename(__file__))
2025-12-04T07:56:46.5599662Z log.addHandler(handler)
2025-12-04T07:56:46.5600318Z log.setLevel(logging.INFO)
2025-12-04T07:56:46.5600614Z 
2025-12-04T07:56:46.5600621Z 
2025-12-04T07:56:46.5600878Z def set_github_output(key: str, value: str) -> None:
2025-12-04T07:56:46.5601404Z     """
2025-12-04T07:56:46.5601909Z     Defines outputs of the github action that invokes this script
2025-12-04T07:56:46.5602502Z     """
2025-12-04T07:56:46.5602886Z     if not GITHUB_OUTPUT:
2025-12-04T07:56:46.5603929Z         # See https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/ for deprecation notice
2025-12-04T07:56:46.5604995Z         log.warning(
2025-12-04T07:56:46.5605799Z             "No env var found for GITHUB_OUTPUT, you must be running this code locally. Falling back to the deprecated print method."
2025-12-04T07:56:46.5606683Z         )
2025-12-04T07:56:46.5616162Z         print(f"::set-output name={key}::{value}")
2025-12-04T07:56:46.5616761Z         return
2025-12-04T07:56:46.5617002Z 
2025-12-04T07:56:46.5617426Z     with open(GITHUB_OUTPUT, "a") as f:
2025-12-04T07:56:46.5618012Z         log.info(f"Setting output: {key}='{value}'")
2025-12-04T07:56:46.5618580Z         f.write(f"{key}={value}\n")
2025-12-04T07:56:46.5618896Z 
2025-12-04T07:56:46.5618902Z 
2025-12-04T07:56:46.5619212Z def _str_comma_separated_to_set(value: str) -> frozenset[str]:
2025-12-04T07:56:46.5619824Z     return frozenset(
2025-12-04T07:56:46.5620744Z         filter(lambda itm: itm != "", map(str.strip, value.strip(" \n\t").split(",")))
2025-12-04T07:56:46.5621419Z     )
2025-12-04T07:56:46.5621616Z 
2025-12-04T07:56:46.5621623Z 
2025-12-04T07:56:46.5621802Z def parse_args() -> Any:
2025-12-04T07:56:46.5622345Z     parser = ArgumentParser("Get dynamic rollout settings")
2025-12-04T07:56:46.5623182Z     parser.add_argument("--github-token", type=str, required=True, help="GitHub token")
2025-12-04T07:56:46.5623921Z     parser.add_argument(
2025-12-04T07:56:46.5624361Z         "--github-issue-repo",
2025-12-04T07:56:46.5624813Z         type=str,
2025-12-04T07:56:46.5625206Z         required=False,
2025-12-04T07:56:46.5625639Z         default="pytorch/test-infra",
2025-12-04T07:56:46.5626156Z         help="GitHub repo to get the issue",
2025-12-04T07:56:46.5626646Z     )
2025-12-04T07:56:46.5627007Z     parser.add_argument(
2025-12-04T07:56:46.5627436Z         "--github-repo",
2025-12-04T07:56:46.5627991Z         type=str,
2025-12-04T07:56:46.5628391Z         required=True,
2025-12-04T07:56:46.5628842Z         help="GitHub repo where CI is running",
2025-12-04T07:56:46.5629343Z     )
2025-12-04T07:56:46.5629699Z     parser.add_argument(
2025-12-04T07:56:46.5630396Z         "--github-issue", type=int, required=True, help="GitHub issue number"
2025-12-04T07:56:46.5631040Z     )
2025-12-04T07:56:46.5631401Z     parser.add_argument(
2025-12-04T07:56:46.5631999Z         "--github-actor", type=str, required=True, help="GitHub triggering_actor"
2025-12-04T07:56:46.5632646Z     )
2025-12-04T07:56:46.5633014Z     parser.add_argument(
2025-12-04T07:56:46.5633626Z         "--github-issue-owner", type=str, required=True, help="GitHub issue owner"
2025-12-04T07:56:46.5634289Z     )
2025-12-04T07:56:46.5634649Z     parser.add_argument(
2025-12-04T07:56:46.5635290Z         "--github-branch", type=str, required=True, help="Current GitHub branch or tag"
2025-12-04T07:56:46.5635986Z     )
2025-12-04T07:56:46.5636349Z     parser.add_argument(
2025-12-04T07:56:46.5636790Z         "--github-ref-type",
2025-12-04T07:56:46.5637231Z         type=str,
2025-12-04T07:56:46.5637621Z         required=True,
2025-12-04T07:56:46.5638089Z         help="Current GitHub ref type, branch or tag",
2025-12-04T07:56:46.5638622Z     )
2025-12-04T07:56:46.5638980Z     parser.add_argument(
2025-12-04T07:56:46.5639427Z         "--eligible-experiments",
2025-12-04T07:56:46.5639919Z         type=_str_comma_separated_to_set,
2025-12-04T07:56:46.5640555Z         required=False,
2025-12-04T07:56:46.5640964Z         default="",
2025-12-04T07:56:46.5641770Z         help="comma separated list of experiments to check, if omitted all experiments marked with default=True are checked",
2025-12-04T07:56:46.5642649Z     )
2025-12-04T07:56:46.5643015Z     parser.add_argument(
2025-12-04T07:56:46.5643461Z         "--opt-out-experiments",
2025-12-04T07:56:46.5643963Z         type=_str_comma_separated_to_set,
2025-12-04T07:56:46.5644479Z         required=False,
2025-12-04T07:56:46.5644892Z         default="",
2025-12-04T07:56:46.5645281Z         help=(
2025-12-04T07:56:46.5645934Z             "comma separated list of experiments to opt-out of. If unset, no opt-outs will occur. "
2025-12-04T07:56:46.5692428Z             "If the same experiment is listed both here and in '--eligible-experiments' opt-out will take priority."
2025-12-04T07:56:46.5693483Z         ),
2025-12-04T07:56:46.5693854Z     )
2025-12-04T07:56:46.5694242Z     parser.add_argument(
2025-12-04T07:56:46.5694681Z         "--pr-number",
2025-12-04T07:56:46.5695097Z         type=str,
2025-12-04T07:56:46.5695502Z         required=False,
2025-12-04T07:56:46.5695924Z         default="",
2025-12-04T07:56:46.5696574Z         help="the optional PR number where this is run",
2025-12-04T07:56:46.5697138Z     )
2025-12-04T07:56:46.5697335Z 
2025-12-04T07:56:46.5697536Z     return parser.parse_args()
2025-12-04T07:56:46.5697853Z 
2025-12-04T07:56:46.5697859Z 
2025-12-04T07:56:46.5698251Z def get_gh_client(github_token: str) -> Github:  # type: ignore[no-any-unimported]
2025-12-04T07:56:46.5699000Z     auth = Auth.Token(github_token)
2025-12-04T07:56:46.5699487Z     return Github(auth=auth)
2025-12-04T07:56:46.5699787Z 
2025-12-04T07:56:46.5699794Z 
2025-12-04T07:56:46.5700378Z def get_issue(gh: Github, repo: str, issue_num: int) -> Issue:  # type: ignore[no-any-unimported]
2025-12-04T07:56:46.5701161Z     repo = gh.get_repo(repo)
2025-12-04T07:56:46.5701642Z     return repo.get_issue(number=issue_num)
2025-12-04T07:56:46.5702003Z 
2025-12-04T07:56:46.5702009Z 
2025-12-04T07:56:46.5702203Z def get_potential_pr_author(
2025-12-04T07:56:46.5702839Z     github_token: str, repo: str, username: str, ref_type: str, ref_name: str
2025-12-04T07:56:46.5703492Z ) -> str:
2025-12-04T07:56:46.5704007Z     # If the trigger was a new tag added by a bot, this is a ciflow case
2025-12-04T07:56:46.5704794Z     # Fetch the actual username from the original PR. The PR number is
2025-12-04T07:56:46.5705516Z     # embedded in the tag name: ciflow/<name>/<pr-number>
2025-12-04T07:56:46.5706043Z 
2025-12-04T07:56:46.5706232Z     gh = get_gh_client(github_token)
2025-12-04T07:56:46.5706553Z 
2025-12-04T07:56:46.5706826Z     if username == "pytorch-bot[bot]" and ref_type == "tag":
2025-12-04T07:56:46.5707421Z         split_tag = ref_name.split("/")
2025-12-04T07:56:46.5707922Z         if (
2025-12-04T07:56:46.5708301Z             len(split_tag) == 3
2025-12-04T07:56:46.5708772Z             and split_tag[0] == "ciflow"
2025-12-04T07:56:46.5709280Z             and split_tag[2].isnumeric()
2025-12-04T07:56:46.5709762Z         ):
2025-12-04T07:56:46.5710246Z             pr_number = split_tag[2]
2025-12-04T07:56:46.5710725Z             try:
2025-12-04T07:56:46.5711173Z                 repository = gh.get_repo(repo)
2025-12-04T07:56:46.5711768Z                 pull = repository.get_pull(number=int(pr_number))
2025-12-04T07:56:46.5712355Z             except Exception as e:
2025-12-04T07:56:46.5712866Z                 raise Exception(  # noqa: TRY002
2025-12-04T07:56:46.5713525Z                     f"issue with pull request {pr_number} from repo {repository}"
2025-12-04T07:56:46.5714155Z                 ) from e
2025-12-04T07:56:46.5714670Z             return pull.user.login  # type: ignore[no-any-return]
2025-12-04T07:56:46.5715348Z     # In all other cases, return the original input username
2025-12-04T07:56:46.5715921Z     return username
2025-12-04T07:56:46.5716152Z 
2025-12-04T07:56:46.5716160Z 
2025-12-04T07:56:46.5716389Z def is_exception_branch(branch: str) -> bool:
2025-12-04T07:56:46.5716904Z     """
2025-12-04T07:56:46.5717535Z     Branches that get opted out of experiments by default, until they're explicitly enabled.
2025-12-04T07:56:46.5718277Z     """
2025-12-04T07:56:46.5718829Z     return branch.split("/")[0] in {"main", "nightly", "release", "landchecks"}
2025-12-04T07:56:46.5719329Z 
2025-12-04T07:56:46.5719335Z 
2025-12-04T07:56:46.5719535Z def load_yaml(yaml_text: str) -> Any:
2025-12-04T07:56:46.5720110Z     try:
2025-12-04T07:56:46.5720490Z         data = yaml.safe_load(yaml_text)
2025-12-04T07:56:46.5720986Z         return data
2025-12-04T07:56:46.5721395Z     except yaml.YAMLError:
2025-12-04T07:56:46.5721874Z         log.exception("Error loading YAML")
2025-12-04T07:56:46.5722384Z         raise
2025-12-04T07:56:46.5722597Z 
2025-12-04T07:56:46.5722604Z 
2025-12-04T07:56:46.5723007Z def extract_settings_user_opt_in_from_text(rollout_state: str) -> tuple[str, str]:
2025-12-04T07:56:46.5723732Z     """
2025-12-04T07:56:46.5724321Z     Extracts the text with settings, if any, and the opted in users from the rollout state.
2025-12-04T07:56:46.5724891Z 
2025-12-04T07:56:46.5725349Z     If the issue body contains "---" then the text above that is the settings
2025-12-04T07:56:46.5726078Z     and the text below is the list of opted in users.
2025-12-04T07:56:46.5726466Z 
2025-12-04T07:56:46.5726831Z     If it doesn't contain "---" then the settings are empty and the rest is the users.
2025-12-04T07:56:46.5727510Z     """
2025-12-04T07:56:46.5727946Z     rollout_state_parts = rollout_state.split("---")
2025-12-04T07:56:46.5728520Z     if len(rollout_state_parts) >= 2:
2025-12-04T07:56:46.5729100Z         return rollout_state_parts[0], rollout_state_parts[1]
2025-12-04T07:56:46.5729664Z     else:
2025-12-04T07:56:46.5730156Z         return "", rollout_state
2025-12-04T07:56:46.5730458Z 
2025-12-04T07:56:46.5730465Z 
2025-12-04T07:56:46.5730664Z class UserOptins(dict[str, list[str]]):
2025-12-04T07:56:46.5731169Z     """
2025-12-04T07:56:46.5731665Z     Dictionary of users with a list of features they have opted into
2025-12-04T07:56:46.5732304Z     """
2025-12-04T07:56:46.5732492Z 
2025-12-04T07:56:46.5732498Z 
2025-12-04T07:56:46.5732833Z def parse_user_opt_in_from_text(user_optin_text: str) -> UserOptins:
2025-12-04T07:56:46.5733457Z     """
2025-12-04T07:56:46.5734148Z     Parse the user opt-in text into a key value pair of username and the list of features they have opted into
2025-12-04T07:56:46.5734799Z 
2025-12-04T07:56:46.5735391Z     Users are GitHub usernames with the @ prefix. Each user is also a comma-separated list of features/experiments to enable.
2025-12-04T07:56:46.5736516Z         - Example line: "@User1,lf,split_build"
2025-12-04T07:56:46.5737196Z         - A "#" prefix indicates the user is opted out of all experiments
2025-12-04T07:56:46.5737659Z 
2025-12-04T07:56:46.5737665Z 
2025-12-04T07:56:46.5737823Z     """
2025-12-04T07:56:46.5738184Z     optins = UserOptins()
2025-12-04T07:56:46.5738653Z     for user in user_optin_text.split("\n"):
2025-12-04T07:56:46.5739196Z         user = user.strip("\r\n\t -")
2025-12-04T07:56:46.5739723Z         if not user or not user.startswith("@"):
2025-12-04T07:56:46.5740379Z             # Not a valid user. Skip
2025-12-04T07:56:46.5740853Z             continue
2025-12-04T07:56:46.5741091Z 
2025-12-04T07:56:46.5741247Z         if user:
2025-12-04T07:56:46.5741671Z             usr_name = user.split(",")[0].strip("@")
2025-12-04T07:56:46.5742347Z             optins[usr_name] = [exp.strip(" ") for exp in user.split(",")[1:]]
2025-12-04T07:56:46.5742847Z 
2025-12-04T07:56:46.5743013Z     return optins
2025-12-04T07:56:46.5743243Z 
2025-12-04T07:56:46.5743250Z 
2025-12-04T07:56:46.5743529Z def is_valid_experiment_name(experiment_name: str) -> bool:
2025-12-04T07:56:46.5744122Z     """
2025-12-04T07:56:46.5744507Z     Check if the experiment name is valid.
2025-12-04T07:56:46.5745010Z     A valid name:
2025-12-04T07:56:46.5745623Z         - Contains only alphanumeric characters and the special characters "_" & "-"
2025-12-04T07:56:46.5746524Z         - The special characters "_" & "-" shouldn't be the first or last characters
2025-12-04T07:56:46.5747229Z         - Cannot contain spaces
2025-12-04T07:56:46.5747679Z     """
2025-12-04T07:56:46.5747879Z 
2025-12-04T07:56:46.5748129Z     valid_char_regex = r"^[a-zA-Z0-9]([\w-]*[a-zA-Z0-9])?$"
2025-12-04T07:56:46.5748791Z     valid = bool(re.match(valid_char_regex, experiment_name))
2025-12-04T07:56:46.5749220Z 
2025-12-04T07:56:46.5749382Z     if valid:
2025-12-04T07:56:46.5749759Z         return True
2025-12-04T07:56:46.5750078Z 
2025-12-04T07:56:46.5750247Z     log.error(
2025-12-04T07:56:46.5751633Z         f"Invalid experiment name: {experiment_name}. Experiment names should only contain alphanumeric characters, '_', and '-'. They cannot contain spaces, and the special characters '_' and '-' cannot be the first or last characters."
2025-12-04T07:56:46.5753152Z     )
2025-12-04T07:56:46.5753495Z     return False
2025-12-04T07:56:46.5753717Z 
2025-12-04T07:56:46.5753723Z 
2025-12-04T07:56:46.5754018Z def parse_settings_from_text(settings_text: str) -> Settings:
2025-12-04T07:56:46.5754609Z     """
2025-12-04T07:56:46.5755297Z     Parse the experiments from the issue body into a list of ExperimentSettings
2025-12-04T07:56:46.5755997Z     """
2025-12-04T07:56:46.5756344Z     try:
2025-12-04T07:56:46.5756694Z         if settings_text:
2025-12-04T07:56:46.5757387Z             # Escape the backtick as well so that we can have the settings in a code block on the GH issue
2025-12-04T07:56:46.5758172Z             # for easy reading
2025-12-04T07:56:46.5758917Z             # Note: Using ascii for the backtick so that the cat step in _runner-determinator.yml doesn't choke on
2025-12-04T07:56:46.5759763Z             #       the backtick character in shell commands.
2025-12-04T07:56:46.5760447Z             backtick = chr(96)  # backtick character
2025-12-04T07:56:46.5761093Z             settings_text = settings_text.strip(f"\r\n\t{backtick} ")
2025-12-04T07:56:46.5761747Z             settings = load_yaml(settings_text)
2025-12-04T07:56:46.5762112Z 
2025-12-04T07:56:46.5762499Z             # For now we just load experiments. We can expand this if/when we add more settings
2025-12-04T07:56:46.5763239Z             experiments = {}
2025-12-04T07:56:46.5763522Z 
2025-12-04T07:56:46.5763884Z             for exp_name, exp_settings in settings.get(SETTING_EXPERIMENTS).items():
2025-12-04T07:56:46.5764622Z                 if not is_valid_experiment_name(exp_name):
2025-12-04T07:56:46.5765674Z                     # Exclude invalid experiments from the list. We log an error, but don't raise an exception so that other experiments can still be processed.
2025-12-04T07:56:46.5766809Z                     continue
2025-12-04T07:56:46.5767084Z 
2025-12-04T07:56:46.5767269Z                 valid_settings = {}
2025-12-04T07:56:46.5767766Z                 for setting in exp_settings:
2025-12-04T07:56:46.5768320Z                     if setting not in Experiment._fields:
2025-12-04T07:56:46.5768861Z                         log.warning(
2025-12-04T07:56:46.5769545Z                             f"Unexpected setting in experiment: {setting} = {exp_settings[setting]}"
2025-12-04T07:56:46.5770646Z                         )
2025-12-04T07:56:46.5771080Z                     else:
2025-12-04T07:56:46.5771572Z                         valid_settings[setting] = exp_settings[setting]
2025-12-04T07:56:46.5771986Z 
2025-12-04T07:56:46.5772257Z                 experiments[exp_name] = Experiment(**valid_settings)
2025-12-04T07:56:46.5772876Z             return Settings(experiments)
2025-12-04T07:56:46.5773213Z 
2025-12-04T07:56:46.5773387Z     except Exception:
2025-12-04T07:56:46.5773867Z         log.exception("Failed to parse settings")
2025-12-04T07:56:46.5774233Z 
2025-12-04T07:56:46.5774407Z     return Settings()
2025-12-04T07:56:46.5774658Z 
2025-12-04T07:56:46.5774665Z 
2025-12-04T07:56:46.5774909Z def parse_settings(rollout_state: str) -> Settings:
2025-12-04T07:56:46.5775460Z     """
2025-12-04T07:56:46.5775871Z     Parse settings, if any, from the rollout state.
2025-12-04T07:56:46.5776245Z 
2025-12-04T07:56:46.5776591Z     If the issue body contains "---" then the text above that is the settings
2025-12-04T07:56:46.5777343Z     and the text below is the list of opted in users.
2025-12-04T07:56:46.5777728Z 
2025-12-04T07:56:46.5778122Z     If it doesn't contain "---" then the settings are empty and the default values are used.
2025-12-04T07:56:46.5778829Z     """
2025-12-04T07:56:46.5779367Z     settings_text, _ = extract_settings_user_opt_in_from_text(rollout_state)
2025-12-04T07:56:46.5780208Z     return parse_settings_from_text(settings_text)
2025-12-04T07:56:46.5780651Z 
2025-12-04T07:56:46.5780658Z 
2025-12-04T07:56:46.5780904Z def parse_users(rollout_state: str) -> UserOptins:
2025-12-04T07:56:46.5781454Z     """
2025-12-04T07:56:46.5781829Z     Parse users from the rollout state.
2025-12-04T07:56:46.5782164Z 
2025-12-04T07:56:46.5782319Z     """
2025-12-04T07:56:46.5782830Z     _, users_text = extract_settings_user_opt_in_from_text(rollout_state)
2025-12-04T07:56:46.5783544Z     return parse_user_opt_in_from_text(users_text)
2025-12-04T07:56:46.5783920Z 
2025-12-04T07:56:46.5783926Z 
2025-12-04T07:56:46.5784449Z def is_user_opted_in(user: str, user_optins: UserOptins, experiment_name: str) -> bool:
2025-12-04T07:56:46.5785186Z     """
2025-12-04T07:56:46.5785581Z     Check if a user is opted into an experiment
2025-12-04T07:56:46.5786109Z     """
2025-12-04T07:56:46.5786552Z     return experiment_name in user_optins.get(user, [])
2025-12-04T07:56:46.5786950Z 
2025-12-04T07:56:46.5786957Z 
2025-12-04T07:56:46.5787364Z def is_user_opted_out(user: str, user_optins: UserOptins, experiment_name: str) -> bool:
2025-12-04T07:56:46.5788069Z     """
2025-12-04T07:56:46.5788516Z     Check if a user explicitly opted out of an experiment
2025-12-04T07:56:46.5789065Z     """
2025-12-04T07:56:46.5789550Z     # if the experiment is prefixed with a "-", then it's an opt-out
2025-12-04T07:56:46.5790291Z     experiment_optout = "-" + experiment_name
2025-12-04T07:56:46.5790905Z     if experiment_optout not in user_optins.get(user, []):
2025-12-04T07:56:46.5791476Z         return False
2025-12-04T07:56:46.5791718Z 
2025-12-04T07:56:46.5791977Z     if is_user_opted_in(user, user_optins, experiment_name):
2025-12-04T07:56:46.5792548Z         log.warning(
2025-12-04T07:56:46.5793324Z             f"User {user} is opted into experiment {experiment_name}, but also opted out of it. Defaulting to opting out"
2025-12-04T07:56:46.5794165Z         )
2025-12-04T07:56:46.5794479Z 
2025-12-04T07:56:46.5794639Z     return True
2025-12-04T07:56:46.5794868Z 
2025-12-04T07:56:46.5794874Z 
2025-12-04T07:56:46.5795052Z def get_runner_prefix(
2025-12-04T07:56:46.5795469Z     rollout_state: str,
2025-12-04T07:56:46.5795911Z     workflow_requestors: Iterable[str],
2025-12-04T07:56:46.5796413Z     branch: str,
2025-12-04T07:56:46.5796873Z     eligible_experiments: frozenset[str] = frozenset(),
2025-12-04T07:56:46.5797509Z     opt_out_experiments: frozenset[str] = frozenset(),
2025-12-04T07:56:46.5798078Z     is_canary: bool = False,
2025-12-04T07:56:46.5798509Z ) -> str:
2025-12-04T07:56:46.5798911Z     settings = parse_settings(rollout_state)
2025-12-04T07:56:46.5799473Z     user_optins = parse_users(rollout_state)
2025-12-04T07:56:46.5799828Z 
2025-12-04T07:56:46.5800101Z     fleet_prefix = ""
2025-12-04T07:56:46.5800514Z     prefixes = []
2025-12-04T07:56:46.5801116Z     for experiment_name, experiment_settings in settings.experiments.items():
2025-12-04T07:56:46.5802018Z         if not experiment_settings.all_branches and is_exception_branch(branch):
2025-12-04T07:56:46.5802701Z             log.info(
2025-12-04T07:56:46.5803339Z                 f"Branch {branch} is an exception branch. Not enabling experiment {experiment_name}."
2025-12-04T07:56:46.5804077Z             )
2025-12-04T07:56:46.5804445Z             continue
2025-12-04T07:56:46.5804681Z 
2025-12-04T07:56:46.5804864Z         if opt_out_experiments:
2025-12-04T07:56:46.5805365Z             if experiment_name in opt_out_experiments:
2025-12-04T07:56:46.5805980Z                 opt_out_exp_list = ", ".join(opt_out_experiments)
2025-12-04T07:56:46.5806548Z                 log.info(
2025-12-04T07:56:46.5807433Z                     f"Skipping experiment '{experiment_name}', as this workflow has opted-out (opted out experiments are: {opt_out_exp_list})"
2025-12-04T07:56:46.5808381Z                 )
2025-12-04T07:56:46.5808757Z                 continue
2025-12-04T07:56:46.5809017Z 
2025-12-04T07:56:46.5809204Z         if eligible_experiments:
2025-12-04T07:56:46.5809739Z             if experiment_name not in eligible_experiments:
2025-12-04T07:56:46.5810487Z                 exp_list = ", ".join(eligible_experiments)
2025-12-04T07:56:46.5811028Z                 log.info(
2025-12-04T07:56:46.5811766Z                     f"Skipping experiment '{experiment_name}', as it is not in the eligible_experiments list: {exp_list}"
2025-12-04T07:56:46.5812574Z                 )
2025-12-04T07:56:46.5812941Z                 continue
2025-12-04T07:56:46.5813394Z         elif not experiment_settings.default:
2025-12-04T07:56:46.5813898Z             log.info(
2025-12-04T07:56:46.5814640Z                 f"Skipping experiment '{experiment_name}', as it is not a default experiment"
2025-12-04T07:56:46.5815347Z             )
2025-12-04T07:56:46.5815700Z             continue
2025-12-04T07:56:46.5815948Z 
2025-12-04T07:56:46.5816220Z         # Is any workflow_requestor opted out to this experiment?
2025-12-04T07:56:46.5816798Z         opted_out_users = [
2025-12-04T07:56:46.5817233Z             requestor
2025-12-04T07:56:46.5817666Z             for requestor in workflow_requestors
2025-12-04T07:56:46.5818300Z             if is_user_opted_out(requestor, user_optins, experiment_name)
2025-12-04T07:56:46.5818902Z         ]
2025-12-04T07:56:46.5819099Z 
2025-12-04T07:56:46.5819272Z         if opted_out_users:
2025-12-04T07:56:46.5819706Z             log.info(
2025-12-04T07:56:46.5820390Z                 f"{', '.join(opted_out_users)} have opted out of experiment {experiment_name}."
2025-12-04T07:56:46.5821072Z             )
2025-12-04T07:56:46.5821419Z             continue
2025-12-04T07:56:46.5821668Z 
2025-12-04T07:56:46.5821942Z         # Is any workflow_requestor opted in to this experiment?
2025-12-04T07:56:46.5822537Z         opted_in_users = [
2025-12-04T07:56:46.5822961Z             requestor
2025-12-04T07:56:46.5823394Z             for requestor in workflow_requestors
2025-12-04T07:56:46.5824019Z             if is_user_opted_in(requestor, user_optins, experiment_name)
2025-12-04T07:56:46.5824725Z         ]
2025-12-04T07:56:46.5824918Z 
2025-12-04T07:56:46.5825083Z         enabled = False
2025-12-04T07:56:46.5825514Z         if opted_in_users:
2025-12-04T07:56:46.5825928Z             log.info(
2025-12-04T07:56:46.5826495Z                 f"{', '.join(opted_in_users)} have opted into experiment {experiment_name}."
2025-12-04T07:56:46.5827148Z             )
2025-12-04T07:56:46.5827529Z             enabled = True
2025-12-04T07:56:46.5827794Z 
2025-12-04T07:56:46.5828002Z         elif experiment_settings.rollout_perc:
2025-12-04T07:56:46.5828785Z             # If no user is opted in, then we randomly enable the experiment based on the rollout percentage
2025-12-04T07:56:46.5829689Z             if random.uniform(0, 100) <= experiment_settings.rollout_perc:
2025-12-04T07:56:46.5830713Z                 log.info(
2025-12-04T07:56:46.5831664Z                     f"Based on rollout percentage of {experiment_settings.rollout_perc}%, enabling experiment {experiment_name}."
2025-12-04T07:56:46.5832549Z                 )
2025-12-04T07:56:46.5832949Z                 enabled = True
2025-12-04T07:56:46.5833243Z 
2025-12-04T07:56:46.5833404Z         if enabled:
2025-12-04T07:56:46.5833807Z             label = experiment_name
2025-12-04T07:56:46.5834330Z             if experiment_name == LF_FLEET_EXPERIMENT:
2025-12-04T07:56:46.5835103Z                 # We give some special treatment to the "lf" experiment since determines the fleet we use
2025-12-04T07:56:46.5835953Z                 #  - If it's enabled, then we always list it's prefix first
2025-12-04T07:56:46.5836702Z                 #  - If we're in the canary branch, then we append ".c" to the lf prefix
2025-12-04T07:56:46.5837349Z                 if is_canary:
2025-12-04T07:56:46.5837832Z                     label += CANARY_FLEET_SUFFIX
2025-12-04T07:56:46.5838364Z                 fleet_prefix = label
2025-12-04T07:56:46.5838830Z             else:
2025-12-04T07:56:46.5839240Z                 prefixes.append(label)
2025-12-04T07:56:46.5839568Z 
2025-12-04T07:56:46.5839750Z     if len(prefixes) > 1:
2025-12-04T07:56:46.5840291Z         log.error(
2025-12-04T07:56:46.5841277Z             f"Only a fleet and one other experiment can be enabled for a job at any time. Enabling {prefixes[0]} and ignoring the rest, which are {', '.join(prefixes[1:])}"
2025-12-04T07:56:46.5842337Z         )
2025-12-04T07:56:46.5842719Z         prefixes = prefixes[:1]
2025-12-04T07:56:46.5843015Z 
2025-12-04T07:56:46.5843202Z     # Fleet always comes first
2025-12-04T07:56:46.5843650Z     if fleet_prefix:
2025-12-04T07:56:46.5844087Z         prefixes.insert(0, fleet_prefix)
2025-12-04T07:56:46.5844420Z 
2025-12-04T07:56:46.5844820Z     return ".".join(prefixes) + "." if prefixes else ""
2025-12-04T07:56:46.5845222Z 
2025-12-04T07:56:46.5845228Z 
2025-12-04T07:56:46.5845640Z def get_rollout_state_from_issue(github_token: str, repo: str, issue_num: int) -> str:
2025-12-04T07:56:46.5846372Z     """
2025-12-04T07:56:46.5846924Z     Gets the first comment of the issue, which contains the desired rollout state.
2025-12-04T07:56:46.5847463Z 
2025-12-04T07:56:46.5847834Z     The default issue we use - https://github.com/pytorch/test-infra/issues/5132
2025-12-04T07:56:46.5848505Z     """
2025-12-04T07:56:46.5848879Z     gh = get_gh_client(github_token)
2025-12-04T07:56:46.5849386Z     issue = get_issue(gh, repo, issue_num)
2025-12-04T07:56:46.5850085Z     return str(issue.get_comments()[0].body.strip("\n\t "))
2025-12-04T07:56:46.5850509Z 
2025-12-04T07:56:46.5850516Z 
2025-12-04T07:56:46.5850892Z def download_json(url: str, headers: dict[str, str], num_retries: int = 3) -> Any:
2025-12-04T07:56:46.5851608Z     for _ in range(num_retries):
2025-12-04T07:56:46.5852067Z         try:
2025-12-04T07:56:46.5852471Z             req = Request(url=url, headers=headers)
2025-12-04T07:56:46.5853102Z             content = urlopen(req, timeout=5).read().decode("utf-8")
2025-12-04T07:56:46.5853722Z             return json.loads(content)
2025-12-04T07:56:46.5854237Z         except Exception as e:
2025-12-04T07:56:46.5854879Z             log.warning(f"Could not download {url}: {e}")
2025-12-04T07:56:46.5855260Z 
2025-12-04T07:56:46.5855616Z     log.warning(f"All {num_retries} retries exhausted, downloading {url} failed")
2025-12-04T07:56:46.5856287Z     return {}
2025-12-04T07:56:46.5856496Z 
2025-12-04T07:56:46.5856502Z 
2025-12-04T07:56:46.5856656Z @cache
2025-12-04T07:56:46.5857244Z def get_pr_info(github_repo: str, github_token: str, pr_number: int) -> dict[str, Any]:
2025-12-04T07:56:46.5857947Z     """
2025-12-04T07:56:46.5858324Z     Dynamically get PR information
2025-12-04T07:56:46.5858800Z     """
2025-12-04T07:56:46.5859264Z     github_api = f"https://api.github.com/repos/{github_repo}"
2025-12-04T07:56:46.5859850Z     headers = {
2025-12-04T07:56:46.5860411Z         "Accept": "application/vnd.github.v3+json",
2025-12-04T07:56:46.5860994Z         "Authorization": f"token {github_token}",
2025-12-04T07:56:46.5861502Z     }
2025-12-04T07:56:46.5861904Z     json_response: dict[str, Any] = download_json(
2025-12-04T07:56:46.5862480Z         url=f"{github_api}/issues/{pr_number}",
2025-12-04T07:56:46.5863025Z         headers=headers,
2025-12-04T07:56:46.5863446Z     )
2025-12-04T07:56:46.5863639Z 
2025-12-04T07:56:46.5863818Z     if not json_response:
2025-12-04T07:56:46.5864358Z         log.warning(f"Failed to get the labels for #{pr_number}")
2025-12-04T07:56:46.5864948Z         return {}
2025-12-04T07:56:46.5865181Z 
2025-12-04T07:56:46.5865372Z     return json_response
2025-12-04T07:56:46.5865631Z 
2025-12-04T07:56:46.5865638Z 
2025-12-04T07:56:46.5866015Z def get_labels(github_repo: str, github_token: str, pr_number: int) -> set[str]:
2025-12-04T07:56:46.5866698Z     """
2025-12-04T07:56:46.5867186Z     Dynamically get the latest list of labels from the pull request
2025-12-04T07:56:46.5867800Z     """
2025-12-04T07:56:46.5868252Z     pr_info = get_pr_info(github_repo, github_token, pr_number)
2025-12-04T07:56:46.5868841Z     return {
2025-12-04T07:56:46.5869405Z         label.get("name") for label in pr_info.get("labels", []) if label.get("name")
2025-12-04T07:56:46.5870165Z     }
2025-12-04T07:56:46.5870356Z 
2025-12-04T07:56:46.5870363Z 
2025-12-04T07:56:46.5870533Z def main() -> None:
2025-12-04T07:56:46.5870928Z     args = parse_args()
2025-12-04T07:56:46.5871184Z 
2025-12-04T07:56:46.5871404Z     runner_label_prefix = DEFAULT_LABEL_PREFIX
2025-12-04T07:56:46.5871767Z 
2025-12-04T07:56:46.5871953Z     # Check if the PR is opt-out
2025-12-04T07:56:46.5872431Z     if args.pr_number:
2025-12-04T07:56:46.5873047Z         labels = get_labels(args.github_repo, args.github_token, int(args.pr_number))
2025-12-04T07:56:46.5873883Z         if OPT_OUT_LABEL in labels:
2025-12-04T07:56:46.5874357Z             log.info(
2025-12-04T07:56:46.5875002Z                 f"Opt-out runner determinator because #{args.pr_number} has {OPT_OUT_LABEL} label"
2025-12-04T07:56:46.5875738Z             )
2025-12-04T07:56:46.5876256Z             set_github_output(GH_OUTPUT_KEY_LABEL_TYPE, runner_label_prefix)
2025-12-04T07:56:46.5876903Z             sys.exit()
2025-12-04T07:56:46.5877153Z 
2025-12-04T07:56:46.5877314Z     try:
2025-12-04T07:56:46.5877724Z         rollout_state = get_rollout_state_from_issue(
2025-12-04T07:56:46.5878408Z             args.github_token, args.github_issue_repo, args.github_issue
2025-12-04T07:56:46.5879015Z         )
2025-12-04T07:56:46.5879206Z 
2025-12-04T07:56:46.5879407Z         username = get_potential_pr_author(
2025-12-04T07:56:46.5879922Z             args.github_token,
2025-12-04T07:56:46.5880471Z             args.github_repo,
2025-12-04T07:56:46.5880958Z             args.github_actor,
2025-12-04T07:56:46.5881413Z             args.github_ref_type,
2025-12-04T07:56:46.5881895Z             args.github_branch,
2025-12-04T07:56:46.5882333Z         )
2025-12-04T07:56:46.5882523Z 
2025-12-04T07:56:46.5882793Z         is_canary = args.github_repo == "pytorch/pytorch-canary"
2025-12-04T07:56:46.5883222Z 
2025-12-04T07:56:46.5883428Z         runner_label_prefix = get_runner_prefix(
2025-12-04T07:56:46.5884041Z             rollout_state,
2025-12-04T07:56:46.5884457Z             (args.github_issue_owner, username),
2025-12-04T07:56:46.5884937Z             args.github_branch,
2025-12-04T07:56:46.5885373Z             args.eligible_experiments,
2025-12-04T07:56:46.5885861Z             args.opt_out_experiments,
2025-12-04T07:56:46.5886296Z             is_canary,
2025-12-04T07:56:46.5886660Z         )
2025-12-04T07:56:46.5886837Z 
2025-12-04T07:56:46.5887002Z     except Exception as e:
2025-12-04T07:56:46.5887394Z         log.error(
2025-12-04T07:56:46.5887982Z             f"Failed to get issue. Defaulting to Meta runners and no experiments. Exception: {e}"
2025-12-04T07:56:46.5888645Z         )
2025-12-04T07:56:46.5888825Z 
2025-12-04T07:56:46.5889120Z     set_github_output(GH_OUTPUT_KEY_LABEL_TYPE, runner_label_prefix)
2025-12-04T07:56:46.5889551Z 
2025-12-04T07:56:46.5889557Z 
2025-12-04T07:56:46.5889724Z if __name__ == "__main__":
2025-12-04T07:56:46.5890217Z     main()
2025-12-04T07:56:46.5890411Z 
2025-12-04T07:56:46.5971786Z ##[group]Run python3 -m pip install urllib3==1.26.18 PyGithub==2.3.0
2025-12-04T07:56:46.5972546Z python3 -m pip install urllib3==1.26.18 PyGithub==2.3.0
2025-12-04T07:56:46.6001811Z shell: /usr/bin/bash -e {0}
2025-12-04T07:56:46.6002226Z env:
2025-12-04T07:56:46.6002745Z   GITHUB_TOKEN: ***
2025-12-04T07:56:46.6003118Z   ISSUE_NUMBER: 5132
2025-12-04T07:56:46.6003513Z   TRIGGERING_ACTOR: pytorchmergebot
2025-12-04T07:56:46.6003957Z   ISSUE_OWNER: 
2025-12-04T07:56:46.6004315Z   CHECK_EXPERIMENTS: 
2025-12-04T07:56:46.6004723Z   OPT_OUT_EXPERIMENTS: 
2025-12-04T07:56:46.6005110Z   PR_NUMBER: 
2025-12-04T07:56:46.6005448Z ##[endgroup]
2025-12-04T07:56:46.9814555Z Defaulting to user installation because normal site-packages is not writeable
2025-12-04T07:56:47.4285482Z Collecting urllib3==1.26.18
2025-12-04T07:56:47.4982058Z   Downloading urllib3-1.26.18-py2.py3-none-any.whl.metadata (48 kB)
2025-12-04T07:56:47.5244120Z      ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 48.9/48.9 kB 2.5 MB/s eta 0:00:00
2025-12-04T07:56:47.5599222Z Collecting PyGithub==2.3.0
2025-12-04T07:56:47.5749114Z   Downloading PyGithub-2.3.0-py3-none-any.whl.metadata (3.8 kB)
2025-12-04T07:56:47.6338477Z Collecting pynacl>=1.4.0 (from PyGithub==2.3.0)
2025-12-04T07:56:47.6490374Z   Downloading pynacl-1.6.1-cp38-abi3-manylinux_2_34_x86_64.whl.metadata (9.8 kB)
2025-12-04T07:56:47.6534168Z Requirement already satisfied: requests>=2.14.0 in /usr/lib/python3/dist-packages (from PyGithub==2.3.0) (2.31.0)
2025-12-04T07:56:47.6550821Z Requirement already satisfied: pyjwt>=2.4.0 in /usr/lib/python3/dist-packages (from pyjwt[crypto]>=2.4.0->PyGithub==2.3.0) (2.7.0)
2025-12-04T07:56:47.6565017Z Requirement already satisfied: typing-extensions>=4.0.0 in /usr/lib/python3/dist-packages (from PyGithub==2.3.0) (4.10.0)
2025-12-04T07:56:47.6930518Z Collecting Deprecated (from PyGithub==2.3.0)
2025-12-04T07:56:47.7086336Z   Downloading deprecated-1.3.1-py2.py3-none-any.whl.metadata (5.9 kB)
2025-12-04T07:56:47.7308791Z Requirement already satisfied: cryptography>=3.4.0 in /usr/lib/python3/dist-packages (from pyjwt[crypto]>=2.4.0->PyGithub==2.3.0) (41.0.7)
2025-12-04T07:56:47.8844821Z Collecting cffi>=2.0.0 (from pynacl>=1.4.0->PyGithub==2.3.0)
2025-12-04T07:56:47.8996705Z   Downloading cffi-2.0.0-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.whl.metadata (2.6 kB)
2025-12-04T07:56:48.0612964Z Collecting wrapt<3,>=1.10 (from Deprecated->PyGithub==2.3.0)
2025-12-04T07:56:48.0767675Z   Downloading wrapt-2.0.1-cp312-cp312-manylinux1_x86_64.manylinux_2_28_x86_64.manylinux_2_5_x86_64.whl.metadata (9.0 kB)
2025-12-04T07:56:48.1083373Z Collecting pycparser (from cffi>=2.0.0->pynacl>=1.4.0->PyGithub==2.3.0)
2025-12-04T07:56:48.1233530Z   Downloading pycparser-2.23-py3-none-any.whl.metadata (993 bytes)
2025-12-04T07:56:48.1601372Z Downloading urllib3-1.26.18-py2.py3-none-any.whl (143 kB)
2025-12-04T07:56:48.1788278Z    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 143.8/143.8 kB 8.1 MB/s eta 0:00:00
2025-12-04T07:56:48.1965573Z Downloading PyGithub-2.3.0-py3-none-any.whl (354 kB)
2025-12-04T07:56:48.2157480Z    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 354.4/354.4 kB 19.6 MB/s eta 0:00:00
2025-12-04T07:56:48.2308659Z Downloading pynacl-1.6.1-cp38-abi3-manylinux_2_34_x86_64.whl (1.4 MB)
2025-12-04T07:56:48.2554456Z    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1.4/1.4 MB 61.4 MB/s eta 0:00:00
2025-12-04T07:56:48.2707945Z Downloading deprecated-1.3.1-py2.py3-none-any.whl (11 kB)
2025-12-04T07:56:48.2890781Z Downloading cffi-2.0.0-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.whl (219 kB)
2025-12-04T07:56:48.2943717Z    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 219.6/219.6 kB 56.6 MB/s eta 0:00:00
2025-12-04T07:56:48.3098497Z Downloading wrapt-2.0.1-cp312-cp312-manylinux1_x86_64.manylinux_2_28_x86_64.manylinux_2_5_x86_64.whl (121 kB)
2025-12-04T07:56:48.3141395Z    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 121.5/121.5 kB 45.0 MB/s eta 0:00:00
2025-12-04T07:56:48.3291614Z Downloading pycparser-2.23-py3-none-any.whl (118 kB)
2025-12-04T07:56:48.3332616Z    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 118.1/118.1 kB 43.2 MB/s eta 0:00:00
2025-12-04T07:56:48.6059576Z Installing collected packages: wrapt, urllib3, pycparser, Deprecated, cffi, pynacl, PyGithub
2025-12-04T07:56:49.1125350Z Successfully installed Deprecated-1.3.1 PyGithub-2.3.0 cffi-2.0.0 pycparser-2.23 pynacl-1.6.1 urllib3-1.26.18 wrapt-2.0.1
2025-12-04T07:56:49.1857033Z ##[group]Run curr_branch="main"
2025-12-04T07:56:49.1857369Z curr_branch="main"
2025-12-04T07:56:49.1857617Z curr_ref_type="branch"
2025-12-04T07:56:49.1857894Z echo "Current branch is '$curr_branch'"
2025-12-04T07:56:49.1858164Z 
2025-12-04T07:56:49.1858386Z python3 runner_determinator.py \
2025-12-04T07:56:49.1858686Z   --github-token "$GITHUB_TOKEN" \
2025-12-04T07:56:49.1858982Z   --github-issue "$ISSUE_NUMBER" \
2025-12-04T07:56:49.1859266Z   --github-branch "$curr_branch" \
2025-12-04T07:56:49.1859550Z   --github-actor "$TRIGGERING_ACTOR" \
2025-12-04T07:56:49.1859885Z   --github-issue-owner "$ISSUE_OWNER" \
2025-12-04T07:56:49.1860420Z   --github-ref-type "$curr_ref_type" \
2025-12-04T07:56:49.1860730Z   --github-repo "$GITHUB_REPOSITORY" \
2025-12-04T07:56:49.1861056Z   --eligible-experiments "$CHECK_EXPERIMENTS" \
2025-12-04T07:56:49.1861448Z   --opt-out-experiments "$OPT_OUT_EXPERIMENTS" \
2025-12-04T07:56:49.1861761Z   --pr-number "${PR_NUMBER}"
2025-12-04T07:56:49.1893069Z shell: /usr/bin/bash -e {0}
2025-12-04T07:56:49.1893326Z env:
2025-12-04T07:56:49.1893946Z   GITHUB_TOKEN: ***
2025-12-04T07:56:49.1894167Z   ISSUE_NUMBER: 5132
2025-12-04T07:56:49.1894403Z   TRIGGERING_ACTOR: pytorchmergebot
2025-12-04T07:56:49.1894659Z   ISSUE_OWNER: 
2025-12-04T07:56:49.1894872Z   CHECK_EXPERIMENTS: 
2025-12-04T07:56:49.1895091Z   OPT_OUT_EXPERIMENTS: 
2025-12-04T07:56:49.1895315Z   PR_NUMBER: 
2025-12-04T07:56:49.1895514Z ##[endgroup]
2025-12-04T07:56:49.1944194Z Current branch is 'main'
2025-12-04T07:56:50.6951640Z INFO    : Based on rollout percentage of 75%, enabling experiment lf.
2025-12-04T07:56:50.6953366Z INFO    : Branch main is an exception branch. Not enabling experiment ephemeral.
2025-12-04T07:56:50.6954508Z INFO    : Branch main is an exception branch. Not enabling experiment wincanary.
2025-12-04T07:56:50.6955412Z INFO    : Branch main is an exception branch. Not enabling experiment wincanarylf.
2025-12-04T07:56:50.6956139Z INFO    : Setting output: label-type='lf.'
2025-12-04T07:56:50.7268454Z Evaluate and set job outputs
2025-12-04T07:56:50.7274847Z Set output 'label-type'
2025-12-04T07:56:50.7277026Z Cleaning up orphan processes