weichen
93aba6ba95
Why: Emergency Codex fallback must not run before Cursor, Antigravity, and PI have each been exhausted. Evidence: Cursor transport 5e6c93f765c232783a7dccb05544e26c386fb031; 29 config tests, focused emergency controller test, and 449 governance tests passed with 19 skips. Impact: Emergency-mode implementation, repair, and test roles now require exactly one enabled profile for each normal adapter while preserving configured order. Refs: .task/feature-agent-cli-enforcement.md
667 lines
23 KiB
Python
667 lines
23 KiB
Python
"""Markdown extraction and constrained YAML parsing for AGENT-EXECUTION.md."""
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from __future__ import annotations
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import ast
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import re
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from collections.abc import Mapping
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from dataclasses import dataclass
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from pathlib import Path
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from typing import Any
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SCHEMA_V1 = "agent-execution/v1"
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CONFIG_NAME = "AGENT-EXECUTION.md"
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BLOCK_OPEN = "```agent-execution"
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BLOCK_CLOSE = "```"
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BUILTIN_ADAPTERS = frozenset(
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{"cursor", "antigravity", "claude", "codex", "pi", "kimi", "opencode", "custom"}
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)
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REQUIRED_ROLES = ("implementation", "repair", "test", "review")
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ALLOWED_PLACEHOLDERS = frozenset(
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{"${workspace}", "${unit_packet}", "${result_path}", "${model}"}
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)
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PLACEHOLDER_RE = re.compile(r"\$\{[A-Za-z0-9_]+\}")
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PERMISSION_VALUES = frozenset({"run-everything"})
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FALLBACK_VALUES = frozenset({"all-unavailable", "never"})
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# Exact implementation/repair/test adapters when emergency_profile is set
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# (the active project mode). Legacy configs without an emergency profile may
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# also name adapter custom for controlled fixtures; they never receive host
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# fallback.
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NORMAL_ROLE_ADAPTERS = frozenset({"cursor", "antigravity", "pi"})
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PROMPT_TRANSPORTS = frozenset({"stdin", "positional", "flag"})
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OUTPUT_FORMATS = frozenset({"json", "stream-json", "jsonl", "text"})
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MAX_PARALLEL = 32
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MAX_TIMEOUT_SECONDS = 86400
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MAX_SUMMARY_BYTES = 1_048_576
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MAX_RAW_OUTPUT_BYTES = 104_857_600
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# Omitted idle_timeout_seconds uses this cap, then clamps to timeout_seconds.
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DEFAULT_IDLE_TIMEOUT_SECONDS = 600
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SHELL_META_RE = re.compile(r"[;&|`$<>(){}]|&&|\|\||\$\(")
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SECRET_KEY_RE = re.compile(
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r"(password|secret|token|api[_-]?key|authorization|credential|passwd)",
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re.IGNORECASE,
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)
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SECRET_VALUE_RE = re.compile(
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r"(?i)^(bearer\s+\S+|sk-[A-Za-z0-9_\-]{8,}|[A-Fa-f0-9]{32,})$"
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)
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ROOT_KEYS = frozenset({"schema", "execution", "roles", "profiles", "custom_adapters"})
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EXECUTION_KEYS = frozenset(
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{
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"fresh_process_per_unit",
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"permission",
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"fallback_to_host",
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"max_parallel",
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"timeout_seconds",
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"idle_timeout_seconds",
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"summary_bytes",
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"raw_output_bytes",
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"max_attempts_per_profile",
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"emergency_profile",
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}
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)
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EXECUTION_REQUIRED = EXECUTION_KEYS - frozenset(
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{"idle_timeout_seconds", "max_attempts_per_profile", "emergency_profile"}
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)
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PROFILE_KEYS = frozenset({"adapter", "executable", "model", "enabled"})
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CUSTOM_ADAPTER_KEYS = frozenset(
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{
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"base_argv",
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"run_everything_argv",
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"workspace_argv",
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"model_argv",
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"prompt_transport",
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"output_format",
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}
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)
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class ConfigError(ValueError):
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"""Raised when AGENT-EXECUTION.md cannot be parsed or fails schema checks."""
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@dataclass(frozen=True)
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class ExecutionPolicy:
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fresh_process_per_unit: bool
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permission: str
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fallback_to_host: str
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max_parallel: int
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timeout_seconds: int
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summary_bytes: int
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raw_output_bytes: int
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idle_timeout_seconds: int = DEFAULT_IDLE_TIMEOUT_SECONDS
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max_attempts_per_profile: int = 1
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emergency_profile: str | None = None
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@dataclass(frozen=True)
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class Profile:
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name: str
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adapter: str
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executable: str
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model: str | None
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enabled: bool
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@dataclass(frozen=True)
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class CustomAdapter:
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name: str
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base_argv: tuple[str, ...]
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run_everything_argv: tuple[str, ...]
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workspace_argv: tuple[str, ...]
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model_argv: tuple[str, ...]
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prompt_transport: str
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output_format: str
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@dataclass(frozen=True)
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class ExecutionConfig:
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schema: str
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execution: ExecutionPolicy
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roles: Mapping[str, tuple[str, ...]]
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profiles: Mapping[str, Profile]
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custom_adapters: Mapping[str, CustomAdapter]
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def load_config(repo: Path) -> ExecutionConfig:
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"""Load and validate the single agent-execution block from repo/AGENT-EXECUTION.md."""
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path = Path(repo) / CONFIG_NAME
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if not path.is_file():
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raise ConfigError(f"missing {CONFIG_NAME}")
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text = path.read_text(encoding="utf-8")
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raw = _parse_subset_yaml(_extract_block(text))
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return _build_config(raw)
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def validate_config(repo: Path) -> list[str]:
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"""Return an empty list when configuration is valid; raise ConfigError otherwise."""
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load_config(repo)
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return []
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def _extract_block(text: str) -> str:
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lines = text.splitlines()
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starts: list[int] = []
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for i, line in enumerate(lines):
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if line.strip() == BLOCK_OPEN:
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starts.append(i)
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if not starts:
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raise ConfigError("missing agent-execution fenced block")
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if len(starts) > 1:
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raise ConfigError("duplicate agent-execution fenced blocks")
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start = starts[0]
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end = None
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for j in range(start + 1, len(lines)):
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if lines[j].strip() == BLOCK_CLOSE:
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end = j
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break
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if end is None:
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raise ConfigError("unclosed agent-execution fenced block")
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return "\n".join(lines[start + 1 : end])
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def _parse_subset_yaml(text: str) -> dict[str, Any]:
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if "\t" in text:
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raise ConfigError("tabs are not allowed; use two-space indentation")
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lines = text.splitlines()
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root: dict[str, Any] = {}
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stack: list[tuple[int, dict[str, Any]]] = [(-2, root)]
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i = 0
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while i < len(lines):
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raw = lines[i]
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if not raw.strip() or raw.lstrip().startswith("#"):
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i += 1
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continue
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indent = len(raw) - len(raw.lstrip(" "))
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stripped = raw.lstrip(" ")
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if stripped.startswith(("- ", "?", "|", ">", "&", "*", "!")):
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raise ConfigError(f"unsupported YAML construct: {raw.strip()!r}")
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if re.search(r"(^|\s)<<", stripped):
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raise ConfigError(f"unsupported YAML merge/alias: {raw.strip()!r}")
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content = raw[indent:]
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if ":" not in content:
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raise ConfigError(f"expected key: value, got {raw.strip()!r}")
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key, _, rest = content.partition(":")
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key = key.strip()
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rest = rest.strip()
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if not key or not re.fullmatch(r"[A-Za-z_][A-Za-z0-9_]*", key):
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raise ConfigError(f"invalid mapping key: {key!r}")
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_reject_secret_key(key)
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# Pop to parent whose indent is strictly less than current.
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while len(stack) > 1 and stack[-1][0] >= indent:
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stack.pop()
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parent_indent, parent = stack[-1]
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expected = parent_indent + 2
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if indent != expected:
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raise ConfigError(
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f"indentation error: expected {expected} spaces, got {indent}"
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)
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if key in parent:
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raise ConfigError(f"duplicate mapping key: {key!r}")
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if rest == "":
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child: dict[str, Any] = {}
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parent[key] = child
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stack.append((indent, child))
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i += 1
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continue
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value = _parse_scalar(rest, key=key)
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parent[key] = value
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i += 1
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return root
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def _parse_scalar(text: str, *, key: str) -> Any:
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if text.startswith(("|", ">")):
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raise ConfigError("multiline scalars are not supported")
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if text.startswith("["):
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return _parse_flow_sequence(text)
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if text in ("true", "false"):
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return text == "true"
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if text in ("null", "~"):
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return None
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if re.fullmatch(r"-?\d+", text):
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return int(text)
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if re.fullmatch(r"\d{4}-\d{2}-\d{2}.*", text):
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raise ConfigError(f"implicit dates are not supported: {text!r}")
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if text[:1] in ("'", '"'):
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value = _parse_quoted_string(text)
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else:
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if any(ch in text for ch in ":#[]{},"):
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raise ConfigError(f"unsafe unquoted scalar: {text!r}")
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value = text
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_reject_shell_or_secret_value(key, value)
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return value
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def _parse_quoted_string(text: str) -> str:
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quote = text[0]
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if quote not in ("'", '"'):
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raise ConfigError(f"invalid quoted string: {text!r}")
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if quote == "'":
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# Single-quoted YAML-ish: only '' escape; keep non-ASCII intact.
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if not text.endswith("'") or len(text) < 2:
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raise ConfigError(f"unclosed single-quoted string: {text!r}")
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inner = text[1:-1]
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return inner.replace("''", "'")
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# Double-quoted: exact Python/JSON-compatible escapes via ast.literal_eval.
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try:
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value = ast.literal_eval(text)
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except (SyntaxError, ValueError) as exc:
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raise ConfigError(f"invalid double-quoted string: {text!r}") from exc
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if not isinstance(value, str):
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raise ConfigError(f"quoted scalar must be a string: {text!r}")
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return value
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def _parse_flow_sequence(text: str) -> list[Any]:
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if not text.startswith("[") or not text.endswith("]"):
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raise ConfigError(f"invalid flow sequence: {text!r}")
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inner = text[1:-1].strip()
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if not inner:
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return []
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items: list[Any] = []
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buf: list[str] = []
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in_quote: str | None = None
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escape = False
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i = 0
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while i < len(inner):
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ch = inner[i]
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if in_quote:
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buf.append(ch)
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if escape:
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escape = False
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elif ch == "\\" and in_quote == '"':
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escape = True
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elif ch == in_quote:
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in_quote = None
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i += 1
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continue
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if ch in ("'", '"'):
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in_quote = ch
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buf.append(ch)
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i += 1
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continue
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if ch == ",":
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items.append(_parse_scalar("".join(buf).strip(), key="list_item"))
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buf = []
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i += 1
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continue
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buf.append(ch)
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i += 1
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if in_quote:
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raise ConfigError(f"unclosed quote in flow sequence: {text!r}")
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if buf and "".join(buf).strip():
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items.append(_parse_scalar("".join(buf).strip(), key="list_item"))
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return items
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def _reject_secret_key(key: str) -> None:
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if SECRET_KEY_RE.search(key):
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raise ConfigError(f"credential-looking key rejected: {key!r}")
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def _reject_shell_or_secret_value(key: str, value: Any) -> None:
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if not isinstance(value, str):
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return
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# Whole-item placeholders are validated later for argv contexts.
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if value in ALLOWED_PLACEHOLDERS:
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return
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if SHELL_META_RE.search(value):
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raise ConfigError(f"shell metacharacter template rejected for {key!r}")
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if SECRET_VALUE_RE.match(value.strip()):
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raise ConfigError(f"secret-shaped value rejected for {key!r}")
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def _build_config(raw: dict[str, Any]) -> ExecutionConfig:
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if not isinstance(raw, dict):
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raise ConfigError("root must be a mapping")
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unknown = set(raw) - ROOT_KEYS
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if unknown:
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raise ConfigError(f"unknown top-level keys: {sorted(unknown)}")
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for required in ("schema", "execution", "roles", "profiles"):
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if required not in raw:
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raise ConfigError(f"missing required key: {required}")
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schema = raw["schema"]
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if schema != SCHEMA_V1:
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raise ConfigError(f"unknown schema: {schema!r}")
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execution = _build_execution(raw["execution"])
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profiles = _build_profiles(raw["profiles"])
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custom_adapters = _build_custom_adapters(raw.get("custom_adapters", {}))
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roles = _build_roles(raw["roles"], profiles)
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for profile in profiles.values():
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if profile.adapter == "custom":
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if profile.name not in custom_adapters:
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raise ConfigError(
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f"profile {profile.name!r} uses adapter custom without "
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f"custom_adapters.{profile.name}"
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)
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elif profile.adapter not in BUILTIN_ADAPTERS - {"custom"}:
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if profile.adapter not in custom_adapters:
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raise ConfigError(f"unknown adapter: {profile.adapter!r}")
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_validate_emergency_profile(execution, profiles, roles)
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_validate_normal_role_adapters(execution, profiles, roles)
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_validate_normal_role_exactness(execution, profiles, roles)
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return ExecutionConfig(
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schema=schema,
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execution=execution,
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roles=roles,
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profiles=profiles,
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custom_adapters=custom_adapters,
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)
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def _build_execution(raw: Any) -> ExecutionPolicy:
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if not isinstance(raw, dict):
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raise ConfigError("execution must be a mapping")
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unknown = set(raw) - EXECUTION_KEYS
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if unknown:
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raise ConfigError(f"unknown execution keys: {sorted(unknown)}")
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missing = EXECUTION_REQUIRED - set(raw)
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if missing:
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raise ConfigError(f"missing execution keys: {sorted(missing)}")
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fresh = raw["fresh_process_per_unit"]
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if fresh is not True:
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raise ConfigError("fresh_process_per_unit must be true")
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permission = raw["permission"]
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if permission not in PERMISSION_VALUES:
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raise ConfigError(f"unsupported permission: {permission!r}")
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fallback = raw["fallback_to_host"]
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if fallback not in FALLBACK_VALUES:
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raise ConfigError(f"unsupported fallback_to_host: {fallback!r}")
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max_parallel = _positive_bounded(
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raw["max_parallel"], "max_parallel", 1, MAX_PARALLEL
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)
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timeout_seconds = _positive_bounded(
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raw["timeout_seconds"], "timeout_seconds", 1, MAX_TIMEOUT_SECONDS
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)
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if "idle_timeout_seconds" in raw:
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idle_timeout_seconds = _positive_bounded(
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raw["idle_timeout_seconds"],
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"idle_timeout_seconds",
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1,
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timeout_seconds,
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)
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else:
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idle_timeout_seconds = min(DEFAULT_IDLE_TIMEOUT_SECONDS, timeout_seconds)
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summary_bytes = _positive_bounded(
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raw["summary_bytes"], "summary_bytes", 1, MAX_SUMMARY_BYTES
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)
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raw_output_bytes = _positive_bounded(
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raw["raw_output_bytes"], "raw_output_bytes", 1, MAX_RAW_OUTPUT_BYTES
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)
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if raw_output_bytes < summary_bytes:
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raise ConfigError("raw_output_bytes must be >= summary_bytes")
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if "max_attempts_per_profile" in raw:
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max_attempts_per_profile = _positive_bounded(
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raw["max_attempts_per_profile"],
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"max_attempts_per_profile",
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1,
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10,
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)
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else:
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max_attempts_per_profile = 1
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if "emergency_profile" in raw:
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emergency_profile = raw["emergency_profile"]
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if not isinstance(emergency_profile, str) or not emergency_profile:
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raise ConfigError("emergency_profile must be a non-empty string")
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else:
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emergency_profile = None
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return ExecutionPolicy(
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fresh_process_per_unit=True,
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permission=permission,
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fallback_to_host=fallback,
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max_parallel=max_parallel,
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timeout_seconds=timeout_seconds,
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summary_bytes=summary_bytes,
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raw_output_bytes=raw_output_bytes,
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idle_timeout_seconds=idle_timeout_seconds,
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max_attempts_per_profile=max_attempts_per_profile,
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emergency_profile=emergency_profile,
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)
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def _validate_emergency_profile(
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execution: ExecutionPolicy,
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profiles: Mapping[str, Profile],
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roles: Mapping[str, tuple[str, ...]],
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) -> None:
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name = execution.emergency_profile
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if name is None:
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return
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if execution.max_attempts_per_profile != 3:
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raise ConfigError(
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"max_attempts_per_profile must equal 3 when emergency_profile is configured"
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)
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profile = profiles.get(name)
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if profile is None:
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raise ConfigError(f"emergency_profile {name!r} does not exist")
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if not profile.enabled:
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raise ConfigError(f"emergency_profile {name!r} must be enabled")
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if profile.adapter != "codex":
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raise ConfigError(f"emergency_profile {name!r} must use adapter codex")
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for role in ("implementation", "repair", "test"):
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if name in roles[role]:
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raise ConfigError(
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f"emergency_profile {name!r} must not appear in role {role!r}"
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)
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def _validate_normal_role_adapters(
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execution: ExecutionPolicy,
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profiles: Mapping[str, Profile],
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roles: Mapping[str, tuple[str, ...]],
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) -> None:
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"""Reject non-project adapters on implementation, repair, and test.
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Active project mode (``emergency_profile`` configured) allows only
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``NORMAL_ROLE_ADAPTERS``. Legacy configs without an emergency profile may
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still use ``custom`` so controller fixtures keep working; that allowance
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does not grant host fallback.
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"""
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allowed = NORMAL_ROLE_ADAPTERS
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if execution.emergency_profile is None:
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allowed = allowed | {"custom"}
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for role in ("implementation", "repair", "test"):
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for name in roles[role]:
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adapter = profiles[name].adapter
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|
if adapter not in allowed:
|
|
raise ConfigError(
|
|
f"profile {name!r} in role {role!r} must use adapter "
|
|
"cursor, antigravity, or pi"
|
|
)
|
|
|
|
|
|
def _validate_normal_role_exactness(
|
|
execution: ExecutionPolicy,
|
|
profiles: Mapping[str, Profile],
|
|
roles: Mapping[str, tuple[str, ...]],
|
|
) -> None:
|
|
"""In active project mode each normal role needs one enabled profile per adapter.
|
|
|
|
Disabled profiles do not count and may appear alongside the enabled one.
|
|
Review is exempt.
|
|
"""
|
|
if execution.emergency_profile is None:
|
|
return
|
|
for role in ("implementation", "repair", "test"):
|
|
enabled: dict[str, list[str]] = {}
|
|
for name in roles[role]:
|
|
profile = profiles[name]
|
|
if profile.enabled:
|
|
enabled.setdefault(profile.adapter, []).append(name)
|
|
for adapter in sorted(NORMAL_ROLE_ADAPTERS):
|
|
names = enabled.get(adapter, [])
|
|
if len(names) != 1:
|
|
raise ConfigError(
|
|
f"role {role!r} must reference exactly one enabled "
|
|
f"{adapter} profile; found {names or 'none'}"
|
|
)
|
|
|
|
|
|
def _positive_bounded(value: Any, name: str, lo: int, hi: int) -> int:
|
|
if type(value) is not int or isinstance(value, bool):
|
|
raise ConfigError(f"{name} must be an integer")
|
|
if value < lo or value > hi:
|
|
raise ConfigError(f"{name} out of bounds: {value}")
|
|
return value
|
|
|
|
|
|
def _build_profiles(raw: Any) -> dict[str, Profile]:
|
|
if not isinstance(raw, dict) or not raw:
|
|
raise ConfigError("profiles must be a non-empty mapping")
|
|
out: dict[str, Profile] = {}
|
|
for name, body in raw.items():
|
|
if not isinstance(body, dict):
|
|
raise ConfigError(f"profile {name!r} must be a mapping")
|
|
unknown = set(body) - PROFILE_KEYS
|
|
if unknown:
|
|
raise ConfigError(f"unknown keys in profile {name!r}: {sorted(unknown)}")
|
|
missing = PROFILE_KEYS - set(body)
|
|
if missing:
|
|
raise ConfigError(f"missing keys in profile {name!r}: {sorted(missing)}")
|
|
adapter = body["adapter"]
|
|
executable = body["executable"]
|
|
enabled = body["enabled"]
|
|
model_raw = body["model"]
|
|
if not isinstance(adapter, str) or not adapter:
|
|
raise ConfigError(f"profile {name!r} adapter must be a string")
|
|
if not isinstance(executable, str) or not executable:
|
|
raise ConfigError(f"profile {name!r} executable must be a string")
|
|
if type(enabled) is not bool:
|
|
raise ConfigError(f"profile {name!r} enabled must be a boolean")
|
|
if model_raw is None or model_raw == "auto":
|
|
model: str | None = None
|
|
elif isinstance(model_raw, str) and model_raw:
|
|
model = model_raw
|
|
else:
|
|
raise ConfigError(f"profile {name!r} model must be a string or auto")
|
|
out[name] = Profile(
|
|
name=name,
|
|
adapter=adapter,
|
|
executable=executable,
|
|
model=model,
|
|
enabled=enabled,
|
|
)
|
|
return out
|
|
|
|
|
|
def _build_roles(
|
|
raw: Any, profiles: Mapping[str, Profile]
|
|
) -> dict[str, tuple[str, ...]]:
|
|
if not isinstance(raw, dict):
|
|
raise ConfigError("roles must be a mapping")
|
|
unknown = set(raw) - set(REQUIRED_ROLES)
|
|
if unknown:
|
|
raise ConfigError(f"unknown roles: {sorted(unknown)}")
|
|
missing = set(REQUIRED_ROLES) - set(raw)
|
|
if missing:
|
|
raise ConfigError(f"missing roles: {sorted(missing)}")
|
|
out: dict[str, tuple[str, ...]] = {}
|
|
for role in REQUIRED_ROLES:
|
|
value = raw[role]
|
|
if not isinstance(value, list) or not value:
|
|
raise ConfigError(f"role {role!r} must be a non-empty list")
|
|
names: list[str] = []
|
|
seen: set[str] = set()
|
|
for item in value:
|
|
if not isinstance(item, str) or not item:
|
|
raise ConfigError(f"role {role!r} entries must be strings")
|
|
if item in seen:
|
|
raise ConfigError(f"duplicate profile reference in role {role!r}: {item}")
|
|
if item not in profiles:
|
|
raise ConfigError(f"unknown profile reference: {item!r}")
|
|
seen.add(item)
|
|
names.append(item)
|
|
out[role] = tuple(names)
|
|
return out
|
|
|
|
|
|
def _build_custom_adapters(raw: Any) -> dict[str, CustomAdapter]:
|
|
if raw is None:
|
|
return {}
|
|
if not isinstance(raw, dict):
|
|
raise ConfigError("custom_adapters must be a mapping")
|
|
out: dict[str, CustomAdapter] = {}
|
|
for name, body in raw.items():
|
|
if not isinstance(body, dict):
|
|
raise ConfigError(f"custom adapter {name!r} must be a mapping")
|
|
unknown = set(body) - CUSTOM_ADAPTER_KEYS
|
|
if unknown:
|
|
raise ConfigError(
|
|
f"unknown keys in custom adapter {name!r}: {sorted(unknown)}"
|
|
)
|
|
missing = CUSTOM_ADAPTER_KEYS - set(body)
|
|
if missing:
|
|
raise ConfigError(
|
|
f"missing keys in custom adapter {name!r}: {sorted(missing)}"
|
|
)
|
|
base_argv = _argv_tuple(body["base_argv"], f"custom_adapters.{name}.base_argv")
|
|
run_everything_argv = _argv_tuple(
|
|
body["run_everything_argv"],
|
|
f"custom_adapters.{name}.run_everything_argv",
|
|
)
|
|
workspace_argv = _argv_tuple(
|
|
body["workspace_argv"], f"custom_adapters.{name}.workspace_argv"
|
|
)
|
|
model_argv = _argv_tuple(
|
|
body["model_argv"], f"custom_adapters.{name}.model_argv"
|
|
)
|
|
prompt_transport = body["prompt_transport"]
|
|
output_format = body["output_format"]
|
|
if prompt_transport not in PROMPT_TRANSPORTS:
|
|
raise ConfigError(
|
|
f"unsupported prompt_transport for {name!r}: {prompt_transport!r}"
|
|
)
|
|
if output_format not in OUTPUT_FORMATS:
|
|
raise ConfigError(
|
|
f"unsupported output_format for {name!r}: {output_format!r}"
|
|
)
|
|
out[name] = CustomAdapter(
|
|
name=name,
|
|
base_argv=base_argv,
|
|
run_everything_argv=run_everything_argv,
|
|
workspace_argv=workspace_argv,
|
|
model_argv=model_argv,
|
|
prompt_transport=prompt_transport,
|
|
output_format=output_format,
|
|
)
|
|
return out
|
|
|
|
|
|
def _argv_tuple(value: Any, label: str) -> tuple[str, ...]:
|
|
if not isinstance(value, list):
|
|
raise ConfigError(f"{label} must be a list")
|
|
items: list[str] = []
|
|
for item in value:
|
|
if not isinstance(item, str):
|
|
raise ConfigError(f"{label} entries must be strings")
|
|
matches = PLACEHOLDER_RE.findall(item)
|
|
if matches:
|
|
if len(matches) != 1 or item != matches[0]:
|
|
raise ConfigError(
|
|
f"placeholder must fill whole argv item in {label}: {item!r}"
|
|
)
|
|
if matches[0] not in ALLOWED_PLACEHOLDERS:
|
|
raise ConfigError(f"unknown placeholder {matches[0]!r} in {label}")
|
|
else:
|
|
_reject_shell_or_secret_value(label, item)
|
|
items.append(item)
|
|
return tuple(items)
|