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model.py
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model.py
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# Copyright (C) 2021 The Software Heritage developers
# See the AUTHORS file at the top-level directory of this distribution
# License: GNU General Public License version 3, or any later version
# See top-level LICENSE file for more information
from datetime import datetime
from typing import Iterable, List, Optional, Union
from .archive import ArchiveInterface
class OriginEntry:
def __init__(self, url, revisions: Iterable["RevisionEntry"], id=None):
self.id = id
self.url = url
self.revisions = revisions
class RevisionEntry:
def __init__(
self,
id: bytes,
date: Optional[datetime] = None,
root: Optional[bytes] = None,
parents: Optional[Iterable[bytes]] = None,
):
self.id = id
self.date = date
assert self.date is None or self.date.tzinfo is not None
self.root = root
self._parents = parents
self._nodes: List[RevisionEntry] = []
def parents(self, archive: ArchiveInterface):
if self._parents is None:
# XXX: no check is done to ensure node.id is a known revision in
# the SWH archive
self._parents = archive.revision_get([self.id])[0].parents
if self._parents:
self._nodes = [
RevisionEntry(
id=rev.id,
root=rev.directory,
date=rev.date,
parents=rev.parents,
)
for rev in archive.revision_get(self._parents)
if rev
]
yield from self._nodes
class DirectoryEntry:
def __init__(self, id: bytes, name: bytes):
self.id = id
self.name = name
self._children: Optional[List[Union[DirectoryEntry, FileEntry]]] = None
def ls(self, archive: ArchiveInterface):
if self._children is None:
self._children = []
for child in archive.directory_ls(self.id):
if child["type"] == "dir":
self._children.append(
DirectoryEntry(child["target"], child["name"])
)
elif child["type"] == "file":
self._children.append(FileEntry(child["target"], child["name"]))
yield from self._children
class FileEntry:
def __init__(self, id: bytes, name: bytes):
self.id = id
self.name = name

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