mirror of
https://github.com/allaunthefox/Research-Stack.git
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e5f04ee6c3
Create 4-Infrastructure/lib/ with canonical implementations of:
- hashing.py: sha256_bytes, sha256_text, sha256_file
- q16.py: Q16_16 fixed-point constants and arithmetic
- jsonl.py: load_json, load_jsonl, write_jsonl, stable_json, canonical_json_bytes
- fraction_utils.py: Fraction serialization helpers for hardware probes
Refactor 66 files across 4-Infrastructure/{hardware,shim,infra} and
5-Applications/{scripts,tools-scripts,hutter_prize,text-to-cad} to import
from the shared library instead of maintaining local copies.
4-Infrastructure/auto/lib/q16.py now re-exports from lib.q16.
Net: -743 lines (490 added, 1233 removed)
Build: not applicable (Python-only change, py_compile verified on all 71 files)
Co-Authored-By: Allaun Silverfox <bigdataiscoming+9i37y6j2@protonmail.com>
29 lines
796 B
Python
29 lines
796 B
Python
"""Shared SHA-256 helpers — single source of truth for the entire repo."""
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from __future__ import annotations
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import hashlib
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from pathlib import Path
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_BUF_SIZE = 1 << 20 # 1 MiB
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def sha256_bytes(data: bytes) -> str:
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"""Hex digest of raw bytes."""
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return hashlib.sha256(data).hexdigest()
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def sha256_text(text: str) -> str:
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"""Hex digest of a UTF-8 string."""
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return hashlib.sha256(text.encode("utf-8")).hexdigest()
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def sha256_file(path: Path, buf_size: int = _BUF_SIZE) -> str:
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"""Streaming hex digest of a file (handles arbitrarily large files)."""
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h = hashlib.sha256()
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with path.open("rb") as fh:
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while True:
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chunk = fh.read(buf_size)
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if not chunk:
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break
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h.update(chunk)
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return h.hexdigest()
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