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b19d31a | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 | #!/usr/bin/env python3
import os
import sys
import json
import hashlib
import time
import tarfile
import tempfile
import shutil
from datetime import datetime
from pathlib import Path
from typing import Dict, Any, Optional, List
import requests
import logging
from huggingface_hub import HfApi
from huggingface_hub.utils import RepositoryNotFoundError
from huggingface_hub import hf_hub_download
logging.basicConfig(
level=logging.INFO,
format='{"timestamp": "%(asctime)s", "level": "%(levelname)s", "module": "atomic-restore", "message": "%(message)s"}'
)
logger = logging.getLogger(__name__)
class AtomicDatasetRestorer:
def __init__(self, repo_id: str, dataset_path: str = "state"):
self.repo_id = repo_id
self.dataset_path = Path(dataset_path)
self.api = HfApi()
self.max_retries = 3
self.base_delay = 1.0
logger.info("init", {
"repo_id": repo_id,
"dataset_path": dataset_path,
"max_retries": self.max_retries
})
def calculate_checksum(self, file_path: Path) -> str:
sha256_hash = hashlib.sha256()
with open(file_path, "rb") as f:
for chunk in iter(lambda: f.read(4096), b""):
sha256_hash.update(chunk)
return sha256_hash.hexdigest()
def validate_integrity(self, metadata: Dict[str, Any], state_files: List[Path]) -> bool:
"""Validate data integrity using checksums"""
try:
if "checksum" not in metadata:
logger.warning("no_checksum_in_metadata", {"action": "skipping_validation"})
return True
state_data = metadata.get("state_data", {})
calculated_checksum = hashlib.sha256(
json.dumps(state_data, sort_keys=True).encode()
).hexdigest()
expected_checksum = metadata["checksum"]
is_valid = calculated_checksum == expected_checksum
logger.info("integrity_check", {
"expected": expected_checksum,
"calculated": calculated_checksum,
"valid": is_valid
})
return is_valid
except Exception as e:
logger.error("integrity_validation_failed", {"error": str(e)})
return False
def create_backup_before_restore(self, target_dir: Path) -> Optional[Path]:
try:
if not target_dir.exists():
return None
timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
backup_dir = target_dir.parent / f"state_backup_{timestamp}"
logger.info("creating_local_backup", {
"source": str(target_dir),
"backup": str(backup_dir)
})
shutil.copytree(target_dir, backup_dir)
return backup_dir
except Exception as e:
logger.error("local_backup_failed", {"error": str(e)})
return None
def restore_from_commit(self, commit_sha: str, target_dir: Path, force: bool = False) -> Dict[str, Any]:
"""
Restore state from specific commit
Args:
commit_sha: Git commit hash to restore from
target_dir: Directory to restore state to
force: Force restore without confirmation
Returns:
Dictionary with operation result
"""
operation_id = f"restore_{int(time.time())}"
logger.info("starting_atomic_restore", {
"operation_id": operation_id,
"commit_sha": commit_sha,
"target_dir": str(target_dir),
"force": force
})
try:
# Validate commit exists
try:
repo_info = self.api.repo_info(
repo_id=self.repo_id,
repo_type="dataset",
revision=commit_sha
)
logger.info("commit_validated", {"commit": commit_sha})
except Exception as e:
error_result = {
"success": False,
"operation_id": operation_id,
"error": f"Invalid commit: {str(e)}",
"timestamp": datetime.now().isoformat()
}
logger.error("commit_validation_failed", error_result)
return error_result
# Create backup before restore
backup_dir = self.create_backup_before_restore(target_dir)
# Create temporary directory for download
with tempfile.TemporaryDirectory() as tmpdir:
tmpdir_path = Path(tmpdir)
# List files in the commit
files = self.api.list_repo_files(
repo_id=self.repo_id,
repo_type="dataset",
revision=commit_sha
)
# Find state files
state_files = [f for f in files if f.startswith(str(self.dataset_path))]
if not state_files:
error_result = {
"success": False,
"operation_id": operation_id,
"error": "No state files found in commit",
"timestamp": datetime.now().isoformat()
}
logger.error("no_state_files", error_result)
return error_result
# Download state files
downloaded_files = []
metadata = None
for file_path in state_files:
try:
local_path = hf_hub_download(
repo_id=self.repo_id,
repo_type="dataset",
filename=file_path,
revision=commit_sha,
local_files_only=False
)
if local_path:
downloaded_files.append(Path(local_path))
# Load metadata if this is metadata.json
if file_path.endswith("metadata.json"):
with open(local_path, "r") as f:
metadata = json.load(f)
except Exception as e:
logger.error("file_download_failed", {"file": file_path, "error": str(e)})
continue
if not metadata:
error_result = {
"success": False,
"operation_id": operation_id,
"error": "Metadata not found in state files",
"timestamp": datetime.now().isoformat()
}
logger.error("metadata_not_found", error_result)
return error_result
# Validate data integrity
if not self.validate_integrity(metadata, downloaded_files):
error_result = {
"success": False,
"operation_id": operation_id,
"error": "Data integrity validation failed",
"timestamp": datetime.now().isoformat()
}
logger.error("integrity_validation_failed", error_result)
return error_result
# Create target directory
target_dir.mkdir(parents=True, exist_ok=True)
# Restore files (except metadata.json which is for reference)
restored_files = []
for file_path in downloaded_files:
if file_path.name != "metadata.json":
dest_path = target_dir / file_path.name
shutil.copy2(file_path, dest_path)
restored_files.append(str(dest_path))
logger.info("file_restored", {
"source": str(file_path),
"destination": str(dest_path)
})
result = {
"success": True,
"operation_id": operation_id,
"commit_sha": commit_sha,
"backup_dir": str(backup_dir) if backup_dir else None,
"timestamp": datetime.now().isoformat(),
"restored_files": restored_files,
"metadata": metadata
}
logger.info("atomic_restore_completed", result)
return result
except Exception as e:
error_result = {
"success": False,
"operation_id": operation_id,
"error": str(e),
"timestamp": datetime.now().isoformat()
}
logger.error("atomic_restore_failed", error_result)
return error_result
def restore_latest(self, target_dir: Path, force: bool = False) -> Dict[str, Any]:
"""Restore from the latest commit"""
try:
repo_info = self.api.repo_info(
repo_id=self.repo_id,
repo_type="dataset"
)
if not repo_info.sha:
error_result = {
"success": False,
"error": "No commit found in repository",
"timestamp": datetime.now().isoformat()
}
logger.error("no_commit_found", error_result)
return error_result
return self.restore_from_commit(repo_info.sha, target_dir, force)
except Exception as e:
error_result = {
"success": False,
"error": f"Failed to get latest commit: {str(e)}",
"timestamp": datetime.now().isoformat()
}
logger.error("latest_commit_failed", error_result)
return error_result
def main():
"""Main function for command line usage"""
if len(sys.argv) < 3:
print(json.dumps({
"error": "Usage: python restore_from_dataset_atomic.py <repo_id> <target_dir> [--force]",
"status": "error"
}, indent=2))
sys.exit(1)
repo_id = sys.argv[1]
target_dir = sys.argv[2]
force = "--force" in sys.argv
try:
target_path = Path(target_dir)
restorer = AtomicDatasetRestorer(repo_id)
result = restorer.restore_latest(target_path, force)
print(json.dumps(result, indent=2))
if not result.get("success", False):
sys.exit(1)
except Exception as e:
print(json.dumps({
"error": str(e),
"status": "error"
}, indent=2))
sys.exit(1)
if __name__ == "__main__":
main() |