File size: 6,585 Bytes
2569bec | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 | """Codex-built V8 artifact overrides for package Cargo builds."""
from __future__ import annotations
import hashlib
import os
import shutil
import tempfile
from collections.abc import Mapping
from dataclasses import dataclass
from pathlib import Path
from urllib.request import urlopen
from .targets import REPO_ROOT, TargetSpec
DOWNLOAD_TIMEOUT_SECS = 120
V8_ARTIFACT_PROFILE = "ptrcomp_sandbox_release"
@dataclass(frozen=True)
class RustyV8ArtifactPair:
archive: Path
binding: Path
def resolve_codex_v8_cargo_env(
spec: TargetSpec,
*,
environ: Mapping[str, str] | None = None,
cache_root: Path | None = None,
) -> dict[str, str]:
environ = os.environ if environ is None else environ
if environ.get("V8_FROM_SOURCE") in {"true", "1", "yes"}:
return {}
archive_override = environ.get("RUSTY_V8_ARCHIVE")
binding_override = environ.get("RUSTY_V8_SRC_BINDING_PATH")
if archive_override and binding_override:
return {}
if archive_override or binding_override:
raise RuntimeError(
"Cargo package builds need RUSTY_V8_ARCHIVE and RUSTY_V8_SRC_BINDING_PATH set together."
)
artifacts = fetch_codex_v8_artifacts(spec, cache_root=cache_root)
return {
"RUSTY_V8_ARCHIVE": str(artifacts.archive),
"RUSTY_V8_SRC_BINDING_PATH": str(artifacts.binding),
}
def fetch_codex_v8_artifacts(
spec: TargetSpec,
*,
version: str | None = None,
cache_root: Path | None = None,
) -> RustyV8ArtifactPair:
version = version or resolved_v8_crate_version()
release_url = (
f"https://github.com/openai/codex/releases/download/rusty-v8-v{version}"
)
target = spec.target
cache_dir = (cache_root or default_cache_root()) / f"rusty-v8-{version}-{target}"
if spec.is_windows:
archive_name = f"rusty_v8_{V8_ARTIFACT_PROFILE}_{target}.lib.gz"
else:
archive_name = f"librusty_v8_{V8_ARTIFACT_PROFILE}_{target}.a.gz"
binding_name = f"src_binding_{V8_ARTIFACT_PROFILE}_{target}.rs"
checksums_name = f"rusty_v8_{V8_ARTIFACT_PROFILE}_{target}.sha256"
archive = cache_dir / archive_name
binding = cache_dir / binding_name
checksums = cache_dir / checksums_name
download_file(f"{release_url}/{checksums.name}", checksums)
verify_release_checksum_manifest(checksums, version=version)
expected_checksums = load_checksums(checksums, {archive.name, binding.name})
for artifact in [archive, binding]:
ensure_valid_artifact(
artifact,
expected_checksums[artifact.name],
f"{release_url}/{artifact.name}",
)
return RustyV8ArtifactPair(archive=archive, binding=binding)
def resolved_v8_crate_version() -> str:
import tomllib
cargo_lock = tomllib.loads((REPO_ROOT / "codex-rs" / "Cargo.lock").read_text())
versions = sorted(
{
package["version"]
for package in cargo_lock["package"]
if package["name"] == "v8"
}
)
if len(versions) != 1:
raise RuntimeError(
f"Expected exactly one resolved v8 version, found: {versions}"
)
return versions[0]
def default_cache_root() -> Path:
return Path(tempfile.gettempdir()) / "codex-package"
def verify_release_checksum_manifest(checksums_path: Path, *, version: str) -> None:
version_suffix = version.replace(".", "_")
trusted_checksums = (
REPO_ROOT
/ "third_party"
/ "v8"
/ f"rusty_v8_{version_suffix}_release_manifests.sha256"
)
for line in trusted_checksums.read_text(encoding="utf-8").splitlines():
digest, artifact_name = line.split(maxsplit=1)
if artifact_name != checksums_path.name:
continue
if has_checksum(checksums_path, digest):
return
checksums_path.unlink(missing_ok=True)
raise RuntimeError(
f"V8 checksum manifest {checksums_path} does not match its trusted SHA-256."
)
raise RuntimeError(
f"V8 checksum manifest {checksums_path.name} has no trusted SHA-256 for {version}."
)
def load_checksums(checksums_path: Path, artifact_names: set[str]) -> dict[str, str]:
checksums: dict[str, str] = {}
lines = checksums_path.read_text(encoding="utf-8").splitlines()
if len(lines) != len(artifact_names):
raise RuntimeError(
f"Expected {len(artifact_names)} V8 checksums in {checksums_path}, found {len(lines)}."
)
for line in lines:
parts = line.split(maxsplit=1)
if len(parts) != 2:
raise RuntimeError(
f"Invalid V8 checksum line in {checksums_path}: {line!r}"
)
digest, artifact_name = parts[0], parts[1].strip()
if len(digest) != 64 or any(char not in "0123456789abcdef" for char in digest):
raise RuntimeError(
f"Invalid V8 checksum digest in {checksums_path}: {digest}"
)
if artifact_name not in artifact_names:
raise RuntimeError(
f"Unexpected V8 checksum artifact in {checksums_path}: {artifact_name}"
)
checksums[artifact_name] = digest
if checksums.keys() != artifact_names:
raise RuntimeError(
f"V8 checksum manifest {checksums_path} does not cover {artifact_names}."
)
return checksums
def ensure_valid_artifact(artifact: Path, checksum: str, url: str) -> None:
if has_checksum(artifact, checksum):
return
artifact.unlink(missing_ok=True)
download_file(url, artifact)
if has_checksum(artifact, checksum):
return
artifact.unlink(missing_ok=True)
raise RuntimeError(
f"Codex-built V8 artifact {artifact} failed checksum validation."
)
def has_checksum(path: Path, expected: str) -> bool:
if not path.is_file():
return False
digest = hashlib.sha256()
with path.open("rb") as artifact:
for chunk in iter(lambda: artifact.read(1024 * 1024), b""):
digest.update(chunk)
return digest.hexdigest() == expected
def download_file(url: str, dest: Path) -> None:
dest.parent.mkdir(parents=True, exist_ok=True)
temp_path = dest.with_suffix(f"{dest.suffix}.tmp")
temp_path.unlink(missing_ok=True)
try:
with urlopen(url, timeout=DOWNLOAD_TIMEOUT_SECS) as response:
with temp_path.open("wb") as output:
shutil.copyfileobj(response, output)
temp_path.replace(dest)
finally:
temp_path.unlink(missing_ok=True)
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