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246c9ea | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 | #!/usr/bin/env python3
# SPDX-License-Identifier: Apache-2.0
"""Materialize the exact Second Brain refinement-memory public projection."""
from __future__ import annotations
import argparse
import json
import os
import re
import tempfile
import urllib.error
import urllib.parse
import urllib.request
from pathlib import Path
from typing import Any
ROOT = Path(__file__).resolve().parents[1]
import sys
sys.path.insert(0, str(ROOT))
from lib.refinement_contract import ( # noqa: E402
SOURCE_SCHEMA,
canonical_bytes,
sha256_hex,
validate_projection,
)
REPOSITORY = "szl-holdings/szl-second-brain"
SOURCE_PATH = "data/refinement-patterns.public.json"
HEX_40 = re.compile(r"^[0-9a-f]{40}$")
MAX_BYTES = 2 * 1024 * 1024
USER_AGENT = "szl-anatomy-refinement-materializer/1.0"
def _request(url: str, *, token: str | None = None) -> bytes:
headers = {
"Accept": "application/vnd.github+json, application/json, text/plain",
"User-Agent": USER_AGENT,
"X-GitHub-Api-Version": "2022-11-28",
}
if token:
headers["Authorization"] = f"Bearer {token}"
request = urllib.request.Request(url, headers=headers)
with urllib.request.urlopen(request, timeout=45) as response:
body = response.read(MAX_BYTES + 1)
if len(body) > MAX_BYTES:
raise ValueError("source projection exceeds bounded size")
return body
def resolve_revision(repository: str, ref: str, token: str | None) -> str:
encoded = urllib.parse.quote(ref, safe="")
url = f"https://api.github.com/repos/{repository}/commits/{encoded}"
try:
raw = _request(url, token=token)
except urllib.error.HTTPError:
if not token:
raise
raw = _request(url, token=None)
payload = json.loads(raw)
revision = str(payload.get("sha") or "").lower()
if not HEX_40.fullmatch(revision):
raise ValueError("source revision is not exact")
return revision
def empty_state() -> dict[str, Any]:
body: dict[str, Any] = {
"schema": "szl.second-brain.refinement-memory/v1",
"state": "EMPTY_REVIEW_REQUIRED",
"ready": True,
"receipt_count": 0,
"pattern_count": 0,
"handles": [],
"content_access": "HANDLES_ONLY",
"private_graph_present": False,
"raw_reasoning_present": False,
"training_authority": "NONE",
"promotion_authority": "NONE",
"execution_authority": "NONE",
"merge_authority": "NONE",
}
body["state_sha256"] = sha256_hex(canonical_bytes(body))
return body
def source_receipt(
state: dict[str, Any], *, revision: str | None, available: bool
) -> dict[str, Any]:
body: dict[str, Any] = {
"schema": SOURCE_SCHEMA,
"source_repository": REPOSITORY,
"source_revision": revision,
"source_path": SOURCE_PATH,
"available": available,
"state_sha256": state["state_sha256"],
"source_content_sha256": sha256_hex(canonical_bytes(state)),
"content_access": "HANDLES_ONLY",
"training_authority": "NONE",
"promotion_authority": "NONE",
"execution_authority": "NONE",
}
body["receipt_sha256"] = sha256_hex(canonical_bytes(body))
return body
def atomic_write(path: Path, payload: dict[str, Any]) -> None:
path.parent.mkdir(parents=True, exist_ok=True)
encoded = json.dumps(payload, sort_keys=True, indent=2, ensure_ascii=False) + "\n"
with tempfile.NamedTemporaryFile(
"w", encoding="utf-8", dir=path.parent, delete=False
) as handle:
handle.write(encoded)
temporary = Path(handle.name)
temporary.replace(path)
def main() -> int:
parser = argparse.ArgumentParser()
parser.add_argument("--repository", default=REPOSITORY)
parser.add_argument("--ref", default="main")
parser.add_argument(
"--state-output", default="lib/refinement_patterns.public.json"
)
parser.add_argument("--source-output", default="lib/refinement_source.json")
parser.add_argument("--allow-unavailable", action="store_true")
args = parser.parse_args()
if args.repository != REPOSITORY:
raise SystemExit("refinement source repository is fixed")
token = os.environ.get("GITHUB_TOKEN") or None
revision = resolve_revision(args.repository, args.ref, token)
raw_url = (
f"https://raw.githubusercontent.com/{args.repository}/{revision}/{SOURCE_PATH}"
)
available = True
try:
raw = _request(raw_url, token=None)
state = json.loads(raw)
if not isinstance(state, dict):
raise ValueError("source projection must be an object")
except urllib.error.HTTPError as exc:
if exc.code != 404 or not args.allow_unavailable:
raise
state = empty_state()
available = False
source = source_receipt(state, revision=revision, available=available)
validate_projection(state, source)
atomic_write(Path(args.state_output), state)
atomic_write(Path(args.source_output), source)
print(
json.dumps(
{
"source_revision": revision,
"available": available,
"state_sha256": state["state_sha256"],
"pattern_count": state["pattern_count"],
},
sort_keys=True,
)
)
return 0
if __name__ == "__main__":
raise SystemExit(main())
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