142 lines
4.4 KiB
Python
Executable File
142 lines
4.4 KiB
Python
Executable File
#!/usr/bin/env python3
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import argparse
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import hashlib
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import io
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import json
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import os
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import subprocess
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import tarfile
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import time
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from collections import defaultdict
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from pathlib import Path
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CATALOG_FILES = {"data.pkg", "packagesite.pkg"}
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LATEST_NAMES = {"latest.pkg", "os-rustproxy-latest.pkg", "rustproxy-latest.pkg"}
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def sha256(path: Path) -> str:
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h = hashlib.sha256()
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with path.open("rb") as f:
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for chunk in iter(lambda: f.read(1024 * 1024), b""):
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h.update(chunk)
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return h.hexdigest()
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def read_manifest(pkg: Path) -> dict:
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for member in ("+COMPACT_MANIFEST", "+MANIFEST"):
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p = subprocess.run(
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["bsdtar", "-xOf", str(pkg), member],
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stdout=subprocess.PIPE,
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stderr=subprocess.DEVNULL,
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check=False,
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)
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if p.returncode == 0 and p.stdout:
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return json.loads(p.stdout.decode("utf-8"))
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raise RuntimeError(f"{pkg.name}: missing +COMPACT_MANIFEST / +MANIFEST")
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def is_payload_pkg(path: Path) -> bool:
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return (
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path.is_file()
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and path.suffix == ".pkg"
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and path.name not in CATALOG_FILES
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and path.name not in LATEST_NAMES
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and not path.name.endswith(".tmp.pkg")
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)
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def collect_packages(repo: Path):
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packages = []
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for path in sorted(repo.rglob("*.pkg")):
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if not is_payload_pkg(path):
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continue
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manifest = read_manifest(path)
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manifest["path"] = path.relative_to(repo).as_posix()
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manifest["pkgsize"] = path.stat().st_size
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manifest["sum"] = sha256(path)
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packages.append((path, manifest))
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return packages
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def enforce_retention(packages, retention: int) -> bool:
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if retention <= 0:
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return False
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groups = defaultdict(list)
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for path, manifest in packages:
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# Keep the requested number per repository subdirectory/ABI and package name.
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key = (path.parent, manifest.get("name", path.stem))
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groups[key].append((path, manifest))
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removed = False
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for (_parent, _name), entries in groups.items():
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entries.sort(key=lambda item: item[0].stat().st_mtime_ns, reverse=True)
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for path, _manifest in entries[retention:]:
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try:
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path.unlink()
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removed = True
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print(f"[opnsense-repo] retention: removed {path}", flush=True)
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except FileNotFoundError:
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pass
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return removed
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def make_tar(dst: Path, member_name: str, payload: bytes):
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tmp = dst.with_name(dst.name + ".tmp")
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with tarfile.open(tmp, "w", format=tarfile.PAX_FORMAT) as tf:
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info = tarfile.TarInfo(member_name)
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info.size = len(payload)
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info.mode = 0o644
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info.mtime = int(time.time())
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tf.addfile(info, io.BytesIO(payload))
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os.replace(tmp, dst)
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def rebuild(repo: Path, retention: int):
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packages = collect_packages(repo)
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if enforce_retention(packages, retention):
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packages = collect_packages(repo)
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manifests = [manifest for _, manifest in packages]
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packagesite = b"".join(
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json.dumps(m, separators=(",", ":"), ensure_ascii=False).encode("utf-8") + b"\n"
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for m in manifests
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)
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data = json.dumps(
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{"groups": [], "expired_packages": [], "packages": manifests},
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separators=(",", ":"),
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ensure_ascii=False,
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).encode("utf-8")
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make_tar(repo / "packagesite.pkg", "packagesite.yaml", packagesite)
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make_tar(repo / "data.pkg", "data", data)
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meta = (
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'version: 1;\n'
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'packing_format: "tar";\n'
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'manifests: "packagesite.yaml";\n'
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'manifests_archive: "packagesite";\n'
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'data: "data";\n'
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'data_archive: "data";\n'
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'filesite: "files";\n'
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'filesite_archive: "files";\n'
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)
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tmp = repo / "meta.conf.tmp"
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tmp.write_text(meta, encoding="utf-8")
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os.replace(tmp, repo / "meta.conf")
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print(f"[opnsense-repo] rebuilt: {len(manifests)} package(s)", flush=True)
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def main():
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parser = argparse.ArgumentParser(description="Build a static FreeBSD pkg repository catalogue")
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parser.add_argument("repo", type=Path, help="repository root")
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parser.add_argument("--retention", type=int, default=10, help="versions kept per package/ABI; 0 disables pruning")
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args = parser.parse_args()
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repo = args.repo.resolve()
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repo.mkdir(parents=True, exist_ok=True)
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rebuild(repo, args.retention)
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if __name__ == "__main__":
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main()
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