v30.3-roots.1 · Commit 61: [PATCH 61/68] fix(release): assemble platform-specific license notices

ci/release/notices.py

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+#!/usr/bin/env python3
+# Copyright (c) 2026-present The Bitcoin Roots developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+import argparse
+import hashlib
+import json
+from pathlib import Path, PurePosixPath
+import re
+import sys
+import tarfile
+import zipfile
+ROOT = Path(__file__).resolve().parents[2]
+TRACKED_NOTICES = {
+    "secp256k1": "src/secp256k1/COPYING",
+    "minisketch": "src/minisketch/LICENSE",
+    "leveldb": "src/leveldb/LICENSE",
+    "crc32c": "src/crc32c/LICENSE",
+    "ctaes": "src/crypto/ctaes/COPYING",
+    "libmultiprocess": "src/ipc/libmultiprocess/COPYING",
+    "RobotoMono-Apache2": "contrib/roots/notices/RobotoMono-APACHE-2.0.txt",
+    "RobotoMono-attribution": "contrib/roots/notices/RobotoMono-NOTICE.txt",
+}
+COMMON_EXTERNAL = {"qt", "boost", "libevent", "zeromq", "qrencode", "sqlite", "miniupnpc"}
+MACOS_EXTERNAL = {"pcre2", "libsodium", "brotli", "graphite2", "md4c", "glib", "libpng", "openssl", "freetype", "harfbuzz", "icu", "gettext", "dbus", "zstd", "libb2", "double-conversion"}
+WINDOWS_EXTERNAL = {"zlib", "libpng", "pcre2", "bzip2", "brotli", "freetype", "double-conversion", "libiconv"}
+PLATFORMS = {"linux-x86_64", "linux-aarch64", "darwin-x86_64", "darwin-arm64", "windows-x86_64"}
+def digest(data):
+    return hashlib.sha256(data).hexdigest()
+def required_components(platform):
+    if platform not in PLATFORMS:
+        raise ValueError(f"Unknown notice platform: {platform}")
+    return COMMON_EXTERNAL | (MACOS_EXTERNAL if platform.startswith("darwin") else {"capnp"} if platform.startswith("linux") else WINDOWS_EXTERNAL)
+def safe_path(path):
+    if not isinstance(path, str) or not path or "\x00" in path or PurePosixPath(path).is_absolute() or "\\" in path or any(x in {"", ".", ".."} for x in path.split("/")):
+        raise ValueError(f"Unsafe notice path: {path}")
+    return path
+def validate_index(index, read, expected_platform):
+    if index.get("format") != 1:
+        raise ValueError("Unsupported notice index format")
+    required = required_components(expected_platform)
+    if index.get("platform") != expected_platform:
+        raise ValueError(f"Notice platform mismatch: expected {expected_platform}, found {index.get('platform')}")
+    components = index.get("components", {})
+    if not required <= components.keys():
+        raise ValueError(f"Missing dependency notice inputs: {sorted(required - components.keys())}")
+    for component, metadata in components.items():
+        if not metadata.get("version") or not metadata.get("source") or not re.fullmatch(r"[0-9a-f]{64}", metadata.get("source_sha256", "")):
+            raise ValueError(f"Missing exact notice provenance: {component}")
+        if not metadata.get("files") and not (component == "sqlite" and index["platform"].startswith("darwin") and metadata.get("role") == "system-library"):
+            raise ValueError(f"Missing notice text: {component}")
+        provenance_type = metadata.get("provenance_type")
+        if provenance_type not in {"build-receipt", "pinned-source-archive", "versioned-primary-notice", "source-version-stability"}:
+            raise ValueError(f"Unsupported notice provenance: {component}")
+        evidence = metadata.get("evidence")
+        if evidence not in index.get("files", {}):
+            raise ValueError(f"Missing retained notice provenance: {component}")
+        if metadata["version"] == "unknown" and (provenance_type != "source-version-stability" or len(metadata.get("notice_stable_versions", [])) < 2):
+            raise ValueError(f"Unknown version requires explicit notice stability evidence: {component}")
+        for path in metadata.get("files", []):
+            if path not in index.get("files", {}):
+                raise ValueError(f"Missing indexed notice: {path}")
+    for path, sha256 in index.get("files", {}).items():
+        safe_path(path)
+        data = read(path)
+        if not data or digest(data) != sha256:
+            raise ValueError(f"Notice bytes differ from index: {path}")
+    for component, source in TRACKED_NOTICES.items():
+        path = f"tracked/{component}.txt"
+        if path not in index.get("files", {}) or read(path) != (ROOT / source).read_bytes():
+            raise ValueError(f"Missing or altered tracked notice: {component}")
+def stage(directory, inputs, expected_platform):
+    index = json.loads(inputs.read_text())
+    source_directory = inputs.parent
+    def read(path):
+        safe_path(path)
+        source = source_directory / path
+        if source.is_symlink() or not source.is_file() or not source.resolve().is_relative_to(source_directory.resolve()):
+            raise ValueError(f"Notice input is not a regular file: {path}")
+        return source.read_bytes()
+    validate_index(index, read, expected_platform)
+    destination = directory / "notices"
+    if not directory.is_dir() or destination.exists() or destination.is_symlink():
+        raise ValueError("Notice staging requires an existing root without notices")
+    destination.mkdir()
+    for path in sorted(index["files"]):
+        target = destination / path
+        target.parent.mkdir(parents=True, exist_ok=True)
+        target.write_bytes(read(path))
+    (destination / "index.json").write_text(json.dumps(index, indent=2, sort_keys=True) + "\n")
+def collect(platform, descriptor, destination):
+    """Copy reviewed notices and their retained primary-source evidence.
+    Dependency versions and linkage evidence belong to the build inventory,
+    never to a guess based on a dylib's ABI number. Evidence can be an original
+    receipt or independently verified source selection with log/binary evidence.
+    Unknown patch versions remain unknown when notice bytes are proven stable.
+    """
+    dependencies = json.loads(descriptor.read_text())
+    index = {"format": 1, "platform": platform, "components": {}, "files": {}}
+    payload = {}
+    for component, source in TRACKED_NOTICES.items():
+        path = f"tracked/{component}.txt"
+        payload[path] = (ROOT / source).read_bytes()
+    for component, metadata in dependencies.items():
+        safe_path(component)
+        source = Path(metadata.get("evidence", metadata.get("receipt", "")))
+        if not source.is_absolute():
+            source = descriptor.parent / source
+        if source.is_symlink() or not source.is_file():
+            raise ValueError(f"Missing retained primary-source evidence: {component}")
+        entry = {"version": metadata["version"], "source": metadata["source"],
+                 "source_sha256": metadata.get("source_sha256", digest(source.read_bytes())),
+                 "provenance_type": metadata.get("provenance_type", "build-receipt"),
+                 "role": metadata.get("role", "build-dependency"), "files": []}
+        if "notice_stable_versions" in metadata:
+            entry["notice_stable_versions"] = metadata["notice_stable_versions"]
+        evidence = f"provenance/{component}/{source.name}"
+        safe_path(evidence)
+        payload[evidence] = source.read_bytes()
+        entry["evidence"] = evidence
+        for number, filename in enumerate(metadata["files"]):
+            notice = Path(filename)
+            if not notice.is_absolute():
+                notice = descriptor.parent / notice
+            if notice.is_symlink() or not notice.is_file():
+                raise ValueError(f"Missing exact dependency notice: {component}: {filename}")
+            path = f"external/{component}/{number}-{notice.name}"
+            safe_path(path)
+            payload[path] = notice.read_bytes()
+            entry["files"].append(path)
+        index["components"][component] = entry
+    index["files"] = {path: digest(data) for path, data in payload.items()}
+    validate_index(index, payload.__getitem__, platform)
+    if destination.exists():
+        raise ValueError("Notice collection destination already exists")
+    destination.mkdir(parents=True)
+    for path, data in payload.items():
+        target = destination / path
+        target.parent.mkdir(parents=True, exist_ok=True)
+        target.write_bytes(data)
+    (destination / "index.json").write_text(json.dumps(index, indent=2, sort_keys=True) + "\n")
+def validate_archive(archive, expected_root, expected_platform):
+    prefix = f"{expected_root}/notices/"
+    if archive.suffix == ".zip":
+        with zipfile.ZipFile(archive) as package:
+            def read(path):
+                member = package.getinfo(prefix + safe_path(path))
+                if member.is_dir() or (member.external_attr >> 16) & 0o170000 not in {0, 0o100000}:
+                    raise ValueError(f"Notice is not a regular member: {path}")
+                return package.read(member)
+            validate_index(json.loads(read("index.json")), read, expected_platform)
+    else:
+        with tarfile.open(archive) as package:
+            def read(path):
+                member = package.getmember(prefix + safe_path(path))
+                if not member.isfile():
+                    raise ValueError(f"Notice is not a regular member: {path}")
+                return package.extractfile(member).read()
+            validate_index(json.loads(read("index.json")), read, expected_platform)
+def main():
+    parser = argparse.ArgumentParser()
+    commands = parser.add_subparsers(dest="command", required=True)
+    staging = commands.add_parser("stage")
+    staging.add_argument("directory", type=Path)
+    staging.add_argument("inputs", type=Path)
+    staging.add_argument("platform", choices=sorted(PLATFORMS))
+    validation = commands.add_parser("validate")
+    validation.add_argument("archive", type=Path)
+    validation.add_argument("expected_root")
+    validation.add_argument("platform", choices=sorted(PLATFORMS))
+    collection = commands.add_parser("collect")
+    collection.add_argument("platform", choices=sorted(PLATFORMS))
+    collection.add_argument("descriptor", type=Path)
+    collection.add_argument("destination", type=Path)
+    args = parser.parse_args()
+    try:
+        if args.command == "stage":
+            stage(args.directory, args.inputs, args.platform)
+        elif args.command == "validate":
+            validate_archive(args.archive, args.expected_root, args.platform)
+        else:
+            collect(args.platform, args.descriptor, args.destination)
+    except (OSError, ValueError, KeyError, tarfile.TarError, zipfile.BadZipFile) as error:
+        print(error, file=sys.stderr)
+        return 1
+    return 0
+if __name__ == "__main__":
+    sys.exit(main())