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"""Rebuild reviewable UP1 files on CPU from pinned sources with patch --fuzz=0. Never deploy."""
from __future__ import annotations
import argparse
import hashlib
import json
from pathlib import Path
import py_compile
import shutil
import subprocess
import tempfile
from typing import TypedDict, cast
ROOT = Path(__file__).resolve().parents[2]
HERE = Path(__file__).resolve().parent
IMAGE = Path('/opt/dsv41/data/src-image')
DONOR = Path('/opt/dsv41/data/upstream/henryous')
PREFIX = '/usr/local/lib/python3.12/dist-packages/'
class Step(TypedDict):
kind: str
path: str
class Lock(TypedDict):
donor_sha: str
files: dict[str, str]
seed: dict[str, str]
steps: list[Step]
class K1Entry(TypedDict):
path: str
base_sha256: str | None
overlay_sha256: str
class K1Manifest(TypedDict):
files: list[K1Entry]
class Entry(TypedDict):
path: str
sha256: str
image_base_sha256: str | None
class Manifest(TypedDict):
donor_sha: str
inputs_lock_sha256: str
steps: list[Step]
fuzz: int
files: list[Entry]
qualification: str
def sha(path: Path) -> str:
return hashlib.sha256(path.read_bytes()).hexdigest()
def safe_path(root: Path, name: str) -> Path:
path = root / name
if Path(name).is_absolute() or not path.resolve().is_relative_to(root.resolve()):
raise ValueError(f'unsafe path: {name}')
return path
def verify_inputs(image: Path = IMAGE, donor: Path = DONOR) -> Lock:
lock = cast(Lock, json.loads((HERE/'inputs.lock.json').read_text()))
revision = subprocess.check_output(['git','-C',str(donor),'rev-parse','HEAD'],text=True).strip()
dirty = subprocess.check_output(['git','-C',str(donor),'status','--porcelain'],text=True).strip()
if revision != lock['donor_sha'] or dirty:
raise ValueError('donor must be clean at pinned revision')
roots = {'repo': ROOT, 'image': image, 'donor': donor}
for key, expected in lock['files'].items():
kind, name = key.split(':',1)
path = safe_path(roots[kind], name)
if sha(path) != expected:
raise ValueError(f'input hash drift: {key}')
return lock
def put(tree: Path, name: str, data: bytes) -> None:
target = safe_path(tree, name)
target.parent.mkdir(parents=True, exist_ok=True)
target.write_bytes(data)
def build(tree: Path, image: Path = IMAGE, donor: Path = DONOR) -> Manifest:
lock = verify_inputs(image, donor)
if tree.exists() and any(tree.iterdir()):
raise ValueError('build destination must be empty')
tree.mkdir(parents=True, exist_ok=True)
roots = {'repo':ROOT, 'image':image, 'donor':donor}
for name, kind in lock['seed'].items():
put(tree, name, safe_path(roots[kind], name).read_bytes())
k1 = cast(K1Manifest, json.loads((ROOT/'offload/kvpack/MANIFEST.json').read_text()))
for entry in k1['files']:
put(tree, entry['path'], (ROOT/'offload/kvpack/overlay'/entry['path']).read_bytes())
for step in lock['steps']:
patch = safe_path(roots[step['kind']],step['path'])
result = subprocess.run(['patch','--batch','--forward','--fuzz=0','--no-backup-if-mismatch',
'-p1','-d',str(tree),'-i',str(patch)],text=True,capture_output=True)
if result.returncode or 'fuzz' in result.stdout.lower():
raise ValueError(f"patch failed: {step['path']}\n{result.stdout}\n{result.stderr}")
print(f"fuzz0: {step['path']}")
if list(tree.rglob('*.rej')) or list(tree.rglob('*.orig')):
raise ValueError('patch left rejects/backups')
entries: list[Entry] = []
with tempfile.TemporaryDirectory(prefix='up1-compile-') as compile_tmp:
for path in sorted(tree.rglob('*')):
if not path.is_file():
continue
name = str(path.relative_to(tree))
if path.suffix == '.py':
py_compile.compile(str(path),cfile=str(Path(compile_tmp)/'check.pyc'),doraise=True)
if path.suffix == '.sh':
subprocess.run(['bash','-n',str(path)],check=True)
original = image / name
entries.append({'path':name,'sha256':sha(path),
'image_base_sha256':sha(original) if original.is_file() else None})
manifest: Manifest = {'donor_sha':lock['donor_sha'],'inputs_lock_sha256':sha(HERE/'inputs.lock.json'),
'steps':lock['steps'],'fuzz':0,'files':entries,
'qualification':'CPU source composition and syntax only; no CUDA/JIT/GB10 execution or speed claim'}
return manifest
def verify_tree(tree: Path, manifest: Manifest) -> None:
actual = {str(p.relative_to(tree)) for p in tree.rglob('*') if p.is_file()}
expected = {e['path'] for e in manifest['files']}
if actual != expected:
raise ValueError(f'overlay file set differs: {sorted(actual ^ expected)}')
for entry in manifest['files']:
if sha(safe_path(tree,entry['path'])) != entry['sha256']:
raise ValueError(f"overlay hash drift: {entry['path']}")
def mounts(manifest: Manifest) -> list[tuple[str, str]]:
pairs: list[tuple[str,str]] = []
for entry in manifest['files']:
name = entry['path']
if name.startswith(('vllm/','vllm_exl3_moe/')):
pairs.append(('offload/upstream_adopt/overlay/'+name,PREFIX+name))
pairs += [
('offload/upstream_adopt/overlay/offload/dspark/spark/remote_dspark',
PREFIX+'vllm/v1/worker/gpu/spec_decode/remote_dspark'),
]
return pairs
def main() -> None:
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('--write',action='store_true')
parser.add_argument('--output',type=Path)
parser.add_argument('--mounts',action='store_true')
args = parser.parse_args()
if args.mounts:
manifest = cast(Manifest,json.loads((HERE/'MANIFEST.json').read_text()))
verify_tree(HERE/'overlay',manifest)
print(' '.join(f'{a}={b}' for a,b in mounts(manifest)))
return
with tempfile.TemporaryDirectory(prefix='up1-rebuild-') as tmp:
tree = Path(tmp)/'tree'
manifest = build(tree)
body = json.dumps(manifest,indent=2)+'\n'
if args.output:
if args.output.exists():
raise ValueError('--output must not already exist')
sidecar = args.output.parent/(args.output.name+".manifest.json")
if sidecar.exists():
raise ValueError("output manifest already exists")
shutil.copytree(tree,args.output)
sidecar.write_text(body)
elif args.write:
# Remove only previous generated files with a known manifest, never a shared source directory.
if (HERE/'MANIFEST.json').exists():
prior = cast(Manifest,json.loads((HERE/'MANIFEST.json').read_text()))
verify_tree(HERE/'overlay',prior)
for entry in prior['files']:
safe_path(HERE/'overlay',entry['path']).unlink()
shutil.copytree(tree,HERE/'overlay',dirs_exist_ok=True)
(HERE/'MANIFEST.json').write_text(body)
else:
if (HERE/'MANIFEST.json').read_text() != body:
raise ValueError('MANIFEST.json differs from rebuild')
verify_tree(HERE/'overlay',manifest)
print(f"verified {len(manifest['files'])} files, pins, fuzz0, py_compile and shell syntax")
if __name__ == '__main__':
main()