Codex Release Bot
96 lines
2.7 KiB
Python
96 lines
2.7 KiB
Python
#!/usr/bin/env python3
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"""Write checksum metadata for a Nexus release tarball."""
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from __future__ import annotations
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import argparse
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import hashlib
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import json
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import tarfile
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from datetime import datetime, timezone
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from pathlib import Path
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def sha256_file(path: Path) -> str:
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h = hashlib.sha256()
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with path.open("rb") as fh:
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for chunk in iter(lambda: fh.read(1024 * 1024), b""):
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h.update(chunk)
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return h.hexdigest()
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def tar_entry_count(path: Path) -> int:
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with tarfile.open(path, "r:gz") as tf:
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return len(tf.getmembers())
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def main() -> int:
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("tarball", type=Path)
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parser.add_argument("--json-output", required=True, type=Path)
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parser.add_argument("--markdown-output", required=True, type=Path)
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parser.add_argument(
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"--sha256-output",
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type=Path,
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help="Optional checksum file path. Defaults to '<tarball>.sha256'.",
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)
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args = parser.parse_args()
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tarball = args.tarball.resolve()
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stat = tarball.stat()
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metadata = {
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"created_at_utc": datetime.now(timezone.utc).isoformat(),
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"tarball": str(tarball),
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"filename": tarball.name,
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"size_bytes": stat.st_size,
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"size_mb": round(stat.st_size / 1024 / 1024, 2),
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"sha256": sha256_file(tarball),
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"entries": tar_entry_count(tarball),
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}
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args.json_output.parent.mkdir(parents=True, exist_ok=True)
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args.json_output.write_text(json.dumps(metadata, ensure_ascii=False, indent=2) + "\n", encoding="utf-8")
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sha256_output = args.sha256_output or Path(str(tarball) + ".sha256")
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sha256_output.parent.mkdir(parents=True, exist_ok=True)
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sha256_output.write_text(
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f"{metadata['sha256']} {metadata['filename']}\n",
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encoding="utf-8",
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newline="\n",
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)
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lines = [
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"# Nexus release artifact metadata",
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"",
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f"- File: `{metadata['filename']}`",
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f"- Size: `{metadata['size_mb']} MB`",
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f"- Entries: `{metadata['entries']}`",
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f"- SHA256: `{metadata['sha256']}`",
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f"- Created UTC: `{metadata['created_at_utc']}`",
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"",
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"## Verify after upload",
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"",
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"Linux:",
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"",
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"```bash",
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f"sha256sum {metadata['filename']}",
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"```",
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"",
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"PowerShell:",
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"",
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"```powershell",
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f"Get-FileHash .\\{metadata['filename']} -Algorithm SHA256",
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"```",
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]
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args.markdown_output.write_text("\n".join(lines) + "\n", encoding="utf-8")
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print(args.json_output)
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print(args.markdown_output)
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print(sha256_output)
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print(f"sha256={metadata['sha256']}")
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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