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"""Paths and settings. Everything machine-specific comes from the environment or `.env`."""

import os
from pathlib import Path

REPO_ROOT = Path(__file__).resolve().parents[2]
UPSTREAM = REPO_ROOT / "third_party" / "PostTrainBench"
ENV_FILE = REPO_ROOT / ".env"


def load_env_file() -> None:
    """Export KEY=VALUE lines from `.env`; variables already set in the shell win."""
    if not ENV_FILE.is_file():
        return
    for line in ENV_FILE.read_text().splitlines():
        key, sep, value = line.strip().partition("=")
        if sep and not key.startswith("#"):
            os.environ.setdefault(key.strip(), value.strip().strip("\"'"))


load_env_file()

DATA_DIR = Path(os.environ.get("PTB_DATA_DIR") or REPO_ROOT / "data").resolve()
CONTAINERS = DATA_DIR / "containers"
HF_CACHE = DATA_DIR / "hf_cache"
# A sweep can opt into a wholly separate result root.  This is stronger than relying only on the
# agent/model prefix below `results/`, and is useful when comparing agents without any possibility
# of touching another agent's artifacts.
RESULTS_DIR = Path(os.environ.get("PTB_RESULTS_DIR") or DATA_DIR / "results").resolve()

# Upstream picks a container per cell with POST_TRAIN_BENCH_CONTAINER_NAME in its `.sub` files:
# `opus_5` for the claude-opus-5 cells, `vllm_debug` for evaluation. Both pin the agent CLIs and
# add the inspect_ai fork that streams vLLM output to the log; plain `standard` does neither.
# `opus_5_local` is upstream's `opus_5` minus two CLI installs whose CDNs the aws cluster cannot
# reach; see the header of containers/opus_5_local.def.
AGENT_CONTAINER = "opus_5_local"
EVAL_CONTAINER = "vllm_debug"
LOCAL_CONTAINERS = REPO_ROOT / "containers"
LOCAL_AGENTS = REPO_ROOT / "agents"


def image(container: str) -> Path:
    return CONTAINERS / f"{container}.sif"


def definition(container: str) -> Path:
    """Local definitions shadow upstream's, so machine-specific variants stay out of the submodule."""
    local = LOCAL_CONTAINERS / f"{container}.def"
    return local if local.is_file() else UPSTREAM / "containers" / f"{container}.def"


def agent_dir(agent: str) -> Path:
    """Return a local agent scaffold when present, otherwise the upstream scaffold."""
    local = LOCAL_AGENTS / agent
    return local if (local / "solve.sh").is_file() else UPSTREAM / "agents" / agent

TASKS = sorted(p.parent.name for p in (UPSTREAM / "src/eval/tasks").glob("*/evaluate.py"))
AGENTS = sorted({p.parent.name for p in (UPSTREAM / "agents").glob("*/solve.sh")}
                | {p.parent.name for p in LOCAL_AGENTS.glob("*/solve.sh")})
DEFINITIONS = sorted({p.stem for p in (UPSTREAM / "containers").glob("*.def")}
                     | {p.stem for p in LOCAL_CONTAINERS.glob("*.def")})


def judge_pool_targets() -> list[str]:
    """`host:port` of every ready replica of the local vLLM judge pool, or an empty list.
    Stands in for OpenAI's `gpt-5-mini` on the two LLM-graded benchmarks, because `.env` has no
    `OPENAI_API_KEY` and api.openai.com is not routable from the aws cluster. Either name the
    replicas with `PTB_JUDGE_POOL`, or point `PTB_JUDGE_POOL_DIR` at the pool directory that
    `scripts/ptb_judge_pool.sbatch` fills with one `task_<i>.addr` per replica -- it writes each
    file only after that endpoint answers, so a reader never sees a half-started server.
    """
    if explicit := os.environ.get("PTB_JUDGE_POOL", "").replace(",", " ").split():
        return explicit
    pool_dir = os.environ.get("PTB_JUDGE_POOL_DIR", "")
    if not pool_dir:
        return []
    return sorted(path.read_text().strip() for path in Path(pool_dir).glob("task_*.addr"))

	"""Paths and settings. Everything machine-specific comes from the environment or `.env`."""

	import os
	from pathlib import Path

	REPO_ROOT = Path(__file__).resolve().parents[2]
	UPSTREAM = REPO_ROOT / "third_party" / "PostTrainBench"
	ENV_FILE = REPO_ROOT / ".env"


	def load_env_file() -> None:
	"""Export KEY=VALUE lines from `.env`; variables already set in the shell win."""
	if not ENV_FILE.is_file():
	return
	for line in ENV_FILE.read_text().splitlines():
	key, sep, value = line.strip().partition("=")
	if sep and not key.startswith("#"):
	os.environ.setdefault(key.strip(), value.strip().strip("\"'"))


	load_env_file()

	DATA_DIR = Path(os.environ.get("PTB_DATA_DIR") or REPO_ROOT / "data").resolve()
	CONTAINERS = DATA_DIR / "containers"
	HF_CACHE = DATA_DIR / "hf_cache"
	# A sweep can opt into a wholly separate result root. This is stronger than relying only on the
	# agent/model prefix below `results/`, and is useful when comparing agents without any possibility
	# of touching another agent's artifacts.
	RESULTS_DIR = Path(os.environ.get("PTB_RESULTS_DIR") or DATA_DIR / "results").resolve()

	# Upstream picks a container per cell with POST_TRAIN_BENCH_CONTAINER_NAME in its `.sub` files:
	# `opus_5` for the claude-opus-5 cells, `vllm_debug` for evaluation. Both pin the agent CLIs and
	# add the inspect_ai fork that streams vLLM output to the log; plain `standard` does neither.
	# `opus_5_local` is upstream's `opus_5` minus two CLI installs whose CDNs the aws cluster cannot
	# reach; see the header of containers/opus_5_local.def.
	AGENT_CONTAINER = "opus_5_local"
	EVAL_CONTAINER = "vllm_debug"
	LOCAL_CONTAINERS = REPO_ROOT / "containers"
	LOCAL_AGENTS = REPO_ROOT / "agents"


	def image(container: str) -> Path:
	return CONTAINERS / f"{container}.sif"


	def definition(container: str) -> Path:
	"""Local definitions shadow upstream's, so machine-specific variants stay out of the submodule."""
	local = LOCAL_CONTAINERS / f"{container}.def"
	return local if local.is_file() else UPSTREAM / "containers" / f"{container}.def"


	def agent_dir(agent: str) -> Path:
	"""Return a local agent scaffold when present, otherwise the upstream scaffold."""
	local = LOCAL_AGENTS / agent
	return local if (local / "solve.sh").is_file() else UPSTREAM / "agents" / agent

	TASKS = sorted(p.parent.name for p in (UPSTREAM / "src/eval/tasks").glob("*/evaluate.py"))
	AGENTS = sorted({p.parent.name for p in (UPSTREAM / "agents").glob("*/solve.sh")}
	\| {p.parent.name for p in LOCAL_AGENTS.glob("*/solve.sh")})
	DEFINITIONS = sorted({p.stem for p in (UPSTREAM / "containers").glob("*.def")}
	\| {p.stem for p in LOCAL_CONTAINERS.glob("*.def")})


	def judge_pool_targets() -> list[str]:
	"""`host:port` of every ready replica of the local vLLM judge pool, or an empty list.

	Stands in for OpenAI's `gpt-5-mini` on the two LLM-graded benchmarks, because `.env` has no
	`OPENAI_API_KEY` and api.openai.com is not routable from the aws cluster. Either name the
	replicas with `PTB_JUDGE_POOL`, or point `PTB_JUDGE_POOL_DIR` at the pool directory that
	`scripts/ptb_judge_pool.sbatch` fills with one `task_<i>.addr` per replica -- it writes each
	file only after that endpoint answers, so a reader never sees a half-started server.
	"""
	if explicit := os.environ.get("PTB_JUDGE_POOL", "").replace(",", " ").split():
	return explicit
	pool_dir = os.environ.get("PTB_JUDGE_POOL_DIR", "")
	if not pool_dir:
	return []
	return sorted(path.read_text().strip() for path in Path(pool_dir).glob("task_*.addr"))