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"""Download selected public PhysInOne scene archives from dataset shards."""
from __future__ import annotations
import argparse
import json
import re
import sys
import threading
from concurrent.futures import ThreadPoolExecutor, as_completed
from datetime import datetime
from pathlib import Path, PurePosixPath
from typing import Optional, Sequence
from urllib.parse import quote, urlparse
from download_data import DownloadProgress, DownloadResult, download_file, utc_now
SCRIPT_ROOT = Path(__file__).resolve().parent
DEFAULT_SELECTION = Path("selected_cases.json")
DEFAULT_REPO_MAP = SCRIPT_ROOT / "download_lists" / "repo_map.json"
def load_json(path: Path) -> object:
if not path.is_file():
raise FileNotFoundError(f"file not found: {path}")
return json.loads(path.read_text(encoding="utf-8"))
def normalize_repository(value: str) -> str:
value = value.strip().rstrip("/")
if value.startswith(("http://", "https://")):
parsed = urlparse(value)
parts = [part for part in parsed.path.split("/") if part]
if len(parts) >= 3 and parts[0] == "datasets":
value = f"{parts[1]}/{parts[2]}"
else:
raise ValueError(f"cannot parse dataset repository URL: {value}")
if not re.fullmatch(r"[A-Za-z0-9_.-]+/[A-Za-z0-9_.-]+", value):
raise ValueError(f"invalid dataset repository name: {value}")
return value
def load_repo_map(path: Path) -> dict[str, str]:
raw = load_json(path)
if not isinstance(raw, dict):
raise ValueError("repository map must be a JSON object")
return {str(key): normalize_repository(str(value)) for key, value in raw.items()}
def safe_component(value: object, field: str) -> str:
text = str(value)
if not text or text in {".", ".."} or "/" in text or "\\" in text:
raise ValueError(f"unsafe {field}: {text!r}")
if any(character.isspace() for character in text):
raise ValueError(f"{field} contains whitespace: {text!r}")
return text
def encoded_remote_path(case: dict) -> str:
raw = str(case.get("hf_zip_path", ""))
path = PurePosixPath(raw)
if path.is_absolute() or not path.parts:
raise ValueError(f"unsafe dataset path: {raw!r}")
if any(part in {"", ".", ".."} for part in path.parts) or "\\" in raw:
raise ValueError(f"unsafe dataset path: {raw!r}")
return quote(raw, safe="/._-~")
def output_path(output_dir: Path, case: dict, keep_structure: bool) -> Path:
remote = PurePosixPath(str(case["hf_zip_path"]))
filename = safe_component(remote.name, "archive name")
if not keep_structure:
return output_dir / filename
return output_dir.joinpath(
safe_component(case["part_id"], "part ID"),
safe_component(case["split"], "split"),
safe_component(case["activity_type"], "activity type"),
filename,
)
class Logs:
def __init__(self, root: Path) -> None:
self.root = root
self.root.mkdir(parents=True, exist_ok=True)
self.success = root / "downloads.tsv"
self.failures = root / "failures.tsv"
self._lock = threading.Lock()
self.success.write_text(
"case_id\trepository\tremote_path\tlocal_path\tstatus\tbytes_written\ttimestamp\n",
encoding="utf-8",
)
self.failures.write_text(
"case_id\trepository\tremote_path\terror\ttimestamp\n",
encoding="utf-8",
)
def record(self, case_id: str, repository: str, result: DownloadResult) -> None:
now = utc_now()
with self._lock:
if result.error:
with self.failures.open("a", encoding="utf-8") as handle:
handle.write(
f"{case_id}\t{repository}\t{result.remote_path}\t"
f"{result.error}\t{now}\n"
)
else:
with self.success.open("a", encoding="utf-8") as handle:
handle.write(
f"{case_id}\t{repository}\t{result.remote_path}\t"
f"{result.local_path}\t{result.status}\t"
f"{result.bytes_written}\t{now}\n"
)
def build_parser() -> argparse.ArgumentParser:
parser = argparse.ArgumentParser(
description="Download selected public PhysInOne scene archives."
)
parser.add_argument(
"--selection",
type=Path,
default=DEFAULT_SELECTION,
help="Selection JSON produced by filter_cases.py (default: selected_cases.json).",
)
parser.add_argument(
"--repo-map",
"--repo_map",
dest="repo_map",
type=Path,
default=DEFAULT_REPO_MAP,
help="Dataset shard map supplied with this repository.",
)
parser.add_argument(
"--output-dir",
"--output_dir",
dest="output_dir",
type=Path,
default=Path("PhysInOne_data/full_dataset"),
help="Whitespace-free local output directory.",
)
parser.add_argument(
"--revision", default="main", help="Dataset revision (default: main)."
)
parser.add_argument(
"--workers", type=int, default=4, help="Concurrent downloads (default: 4)."
)
parser.add_argument(
"--retries", type=int, default=3, help="Retries after each failure (default: 3)."
)
parser.add_argument(
"--timeout", type=float, default=60.0, help="Request timeout in seconds."
)
parser.add_argument(
"--keep-shard-structure",
"--keep_shard_structure",
dest="keep_shard_structure",
action="store_true",
help="Preserve part/split/activity directories instead of a flat output.",
)
parser.add_argument(
"--no-resume",
action="store_true",
help="Restart incomplete .part files instead of resuming them.",
)
parser.add_argument(
"--overwrite", action="store_true", help="Replace completed local files."
)
parser.add_argument(
"--dry-run",
"--dry_run",
dest="dry_run",
action="store_true",
help="Print the planned transfers without downloading.",
)
return parser
def main(argv: Optional[Sequence[str]] = None) -> int:
args = build_parser().parse_args(argv)
if args.workers < 1:
raise SystemExit("--workers must be at least 1")
if args.retries < 0:
raise SystemExit("--retries cannot be negative")
if args.timeout <= 0:
raise SystemExit("--timeout must be positive")
if any(character.isspace() for character in str(args.output_dir)):
raise SystemExit("--output-dir must not contain whitespace")
selection = load_json(args.selection)
if not isinstance(selection, dict) or not isinstance(selection.get("cases"), list):
raise ValueError("selection JSON must contain a list named 'cases'")
cases = selection["cases"]
repository_map = load_repo_map(args.repo_map)
missing = sorted(
{
str(case.get("part_id", ""))
for case in cases
if str(case.get("part_id", "")) not in repository_map
}
)
if missing:
raise KeyError("part IDs missing from repository map: " + ", ".join(missing))
output_dir = args.output_dir.expanduser().resolve()
planned = []
for case in cases:
part_id = str(case["part_id"])
planned.append(
(
str(case.get("case_id", "")),
repository_map[part_id],
encoded_remote_path(case),
output_path(output_dir, case, args.keep_shard_structure),
)
)
print(f"cases: {len(planned)}")
if args.dry_run:
for case_id, repository, remote_path, destination in planned[:20]:
print(f"{case_id}: {repository}/{remote_path} -> {destination}")
if len(planned) > 20:
print(f"... and {len(planned) - 20} more")
return 0
output_dir.mkdir(parents=True, exist_ok=True)
run_id = datetime.now().strftime("%Y%m%d_%H%M%S")
logs = Logs(output_dir / "_download_logs" / run_id)
results = []
progress = DownloadProgress(len(planned), "Downloading")
try:
with ThreadPoolExecutor(max_workers=args.workers) as pool:
futures = {
pool.submit(
download_file,
"full_dataset",
remote_path,
destination,
args.revision,
args.timeout,
args.retries,
not args.no_resume,
args.overwrite,
False,
repository,
progress,
index,
): (index, case_id, repository)
for index, (case_id, repository, remote_path, destination)
in enumerate(planned)
}
for future in as_completed(futures):
key, case_id, repository = futures[future]
result = future.result()
results.append(result)
logs.record(case_id, repository, result)
progress.complete(
key, result.status, result.local_path, failed=bool(result.error)
)
finally:
progress.finish()
failures = sum(1 for result in results if result.error)
summary = {
"selected_cases": len(planned),
"successful_downloads": len(results) - failures,
"download_failures": failures,
"output_dir": str(output_dir),
"log_dir": str(logs.root),
"finished_at": utc_now(),
}
(logs.root / "summary.json").write_text(
json.dumps(summary, indent=2, sort_keys=True) + "\n", encoding="utf-8"
)
print(json.dumps(summary, indent=2, sort_keys=True))
return 1 if failures else 0
if __name__ == "__main__":
raise SystemExit(main())
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