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chore: import upstream snapshot with attribution
2026-07-13 12:30:44 +08:00

41 lines
1.8 KiB
Python

# ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
from mirage.workspace.snapshot.manifest import split_manifest_and_blobs
from mirage.workspace.snapshot.state import to_state_dict
from mirage.workspace.snapshot.tar_io import write_tar
async def snapshot(ws, target, *, compress: str | None = None) -> None:
"""Serialize a Workspace to a tar archive.
Fingerprints come from ``ws._ops.records`` (each read carries the
backend's version marker captured at the moment of the read), so
no live network round-trips are needed at snapshot time. Kept as
``async def`` for API stability and future-proofing.
Workspace.load and Workspace.copy own the inverse direction
(construction). Snapshot does not construct Workspace — that
keeps the dependency direction unidirectional: workspace → snapshot.
Args:
ws: the workspace to snapshot.
target: filesystem path (str/Path) OR a writable file-like
object (BytesIO, etc.).
compress: None | "gz" | "bz2" | "xz".
"""
state = await to_state_dict(ws)
manifest, blobs = split_manifest_and_blobs(state)
write_tar(target, manifest, blobs, compress=compress)