Differential D6000 Diff 21665 swh/vault/cookers/git_bare.py

Changeset View

Standalone View

swh/vault/cookers/git_bare.py

Show All 24 Lines
import tempfile		import tempfile
from typing import Any, Dict, Iterable, List, Optional, Set		from typing import Any, Dict, Iterable, List, Optional, Set
import zlib		import zlib

from swh.core.api.classes import stream_results		from swh.core.api.classes import stream_results
from swh.model import identifiers		from swh.model import identifiers
from swh.model.hashutil import hash_to_bytehex, hash_to_hex		from swh.model.hashutil import hash_to_bytehex, hash_to_hex
from swh.model.model import (		from swh.model.model import (
		ObjectType,
Person,		Person,
Revision,		Revision,
RevisionType,		RevisionType,
Sha1Git,		Sha1Git,
TargetType,		TargetType,
TimestampWithTimezone,		TimestampWithTimezone,
)		)
from swh.storage.algos.revisions_walker import DFSRevisionsWalker		from swh.storage.algos.revisions_walker import DFSRevisionsWalker
from swh.storage.algos.snapshot import snapshot_get_all_branches		from swh.storage.algos.snapshot import snapshot_get_all_branches
from swh.vault.cookers.base import BaseVaultCooker		from swh.vault.cookers.base import BaseVaultCooker
from swh.vault.to_disk import HIDDEN_MESSAGE, SKIPPED_MESSAGE		from swh.vault.to_disk import HIDDEN_MESSAGE, SKIPPED_MESSAGE

		RELEASE_BATCH_SIZE = 10000
REVISION_BATCH_SIZE = 10000		REVISION_BATCH_SIZE = 10000
DIRECTORY_BATCH_SIZE = 10000		DIRECTORY_BATCH_SIZE = 10000
CONTENT_BATCH_SIZE = 100		CONTENT_BATCH_SIZE = 100


class GitBareCooker(BaseVaultCooker):		class GitBareCooker(BaseVaultCooker):
use_fsck = True		use_fsck = True

Show All 25 Lines	class GitBareCooker(BaseVaultCooker):

def _pop(self, stack: List[Sha1Git], n: int) -> List[Sha1Git]:		def _pop(self, stack: List[Sha1Git], n: int) -> List[Sha1Git]:
obj_ids = stack[-n:]		obj_ids = stack[-n:]
stack[-n:] = []		stack[-n:] = []
return obj_ids		return obj_ids

def prepare_bundle(self):		def prepare_bundle(self):
# Objects we will visit soon:		# Objects we will visit soon:
		self._rel_stack: List[Sha1Git] = []
self._rev_stack: List[Sha1Git] = []		self._rev_stack: List[Sha1Git] = []
self._dir_stack: List[Sha1Git] = []		self._dir_stack: List[Sha1Git] = []
self._cnt_stack: List[Sha1Git] = []		self._cnt_stack: List[Sha1Git] = []

# Set of objects already in any of the stacks:		# Set of objects already in any of the stacks:
self._seen: Set[Sha1Git] = set()		self._seen: Set[Sha1Git] = set()
self._walker_state: Optional[Any] = None		self._walker_state: Optional[Any] = None

▲ Show 20 Lines • Show All 143 Lines • ▼ Show 20 Lines	def push_subgraph(self, obj_type, obj_id) -> None:
elif obj_type == "snapshot":		elif obj_type == "snapshot":
self.push_snapshot_subgraph(obj_id)		self.push_snapshot_subgraph(obj_id)
else:		else:
raise NotImplementedError(		raise NotImplementedError(
f"GitBareCooker.queue_subgraph({obj_type!r}, ...)"		f"GitBareCooker.queue_subgraph({obj_type!r}, ...)"
)		)

def load_objects(self) -> None:		def load_objects(self) -> None:
while self._rev_stack or self._dir_stack or self._cnt_stack:		while self._rel_stack or self._rev_stack or self._dir_stack or self._cnt_stack:
		release_ids = self._pop(self._rel_stack, RELEASE_BATCH_SIZE)
		self.push_releases_subgraphs(release_ids)

revision_ids = self._pop(self._rev_stack, REVISION_BATCH_SIZE)		revision_ids = self._pop(self._rev_stack, REVISION_BATCH_SIZE)
self.load_revisions(revision_ids)		self.load_revisions(revision_ids)

directory_ids = self._pop(self._dir_stack, DIRECTORY_BATCH_SIZE)		directory_ids = self._pop(self._dir_stack, DIRECTORY_BATCH_SIZE)
self.load_directories(directory_ids)		self.load_directories(directory_ids)

content_ids = self._pop(self._cnt_stack, CONTENT_BATCH_SIZE)		content_ids = self._pop(self._cnt_stack, CONTENT_BATCH_SIZE)
self.load_contents(content_ids)		self.load_contents(content_ids)
▲ Show 20 Lines • Show All 48 Lines • ▼ Show 20 Lines	def push_snapshot_subgraph(self, obj_id: Sha1Git) -> None:
# TODO: when self.graph is available and supports edge labels, use it		# TODO: when self.graph is available and supports edge labels, use it
# directly to get branch names.		# directly to get branch names.
snapshot = snapshot_get_all_branches(self.storage, obj_id)		snapshot = snapshot_get_all_branches(self.storage, obj_id)
assert snapshot, "Unknown snapshot" # should have been caught by check_exists()		assert snapshot, "Unknown snapshot" # should have been caught by check_exists()
for branch in snapshot.branches.values():		for branch in snapshot.branches.values():
if not loaded_from_graph:		if not loaded_from_graph:
if branch.target_type == TargetType.REVISION:		if branch.target_type == TargetType.REVISION:
self.push_revision_subgraph(branch.target)		self.push_revision_subgraph(branch.target)
		elif branch.target_type == TargetType.RELEASE:
		self.push_releases_subgraphs([branch.target])
elif branch.target_type == TargetType.ALIAS:		elif branch.target_type == TargetType.ALIAS:
# Nothing to do, this for loop also iterates on the target branch		# Nothing to do, this for loop also iterates on the target branch
# (if it exists)		# (if it exists)
pass		pass
else:		else:
raise NotImplementedError(f"{branch.target_type} branches")		raise NotImplementedError(f"{branch.target_type} branches")

self.write_refs(snapshot=snapshot)		self.write_refs(snapshot=snapshot)

def load_revisions(self, obj_ids: List[Sha1Git]) -> None:		def load_revisions(self, obj_ids: List[Sha1Git]) -> None:
"""Given a list of revision ids, loads these revisions and their directories;		"""Given a list of revision ids, loads these revisions and their directories;
but not their parent revisions."""		but not their parent revisions."""
revisions = self.storage.revision_get(obj_ids)		revisions = self.storage.revision_get(obj_ids)
for revision in revisions:		for revision in revisions:
self.write_revision_node(revision.to_dict())		self.write_revision_node(revision.to_dict())
self._push(self._dir_stack, (rev.directory for rev in revisions))		self._push(self._dir_stack, (rev.directory for rev in revisions))

def write_revision_node(self, revision: Dict[str, Any]) -> bool:		def write_revision_node(self, revision: Dict[str, Any]) -> bool:
"""Writes a revision object to disk"""		"""Writes a revision object to disk"""
git_object = identifiers.revision_git_object(revision)		git_object = identifiers.revision_git_object(revision)
return self.write_object(revision["id"], git_object)		return self.write_object(revision["id"], git_object)

		def push_releases_subgraphs(self, obj_ids: List[Sha1Git]) -> None:
		"""Given a list of release ids, loads these releases and adds their
		target to the list of objects to visit"""
		releases = self.storage.release_get(obj_ids)
		revision_ids: List[Sha1Git] = []
		for release in releases:
		self.write_release_node(release.to_dict())
		if release.target_type == ObjectType.REVISION:
		self.push_revision_subgraph(release.target)
		else:
		raise NotImplementedError(f"{release.target_type} release targets")
		self._push(self._rev_stack, revision_ids)

		def write_release_node(self, release: Dict[str, Any]) -> bool:
		"""Writes a release object to disk"""
		git_object = identifiers.release_git_object(release)
		return self.write_object(release["id"], git_object)

def load_directories(self, obj_ids: List[Sha1Git]) -> None:		def load_directories(self, obj_ids: List[Sha1Git]) -> None:
for obj_id in obj_ids:		for obj_id in obj_ids:
self.load_directory(obj_id)		self.load_directory(obj_id)

def load_directory(self, obj_id: Sha1Git) -> None:		def load_directory(self, obj_id: Sha1Git) -> None:
# Load the directory		# Load the directory
entries = [		entries = [
entry.to_dict()		entry.to_dict()
▲ Show 20 Lines • Show All 69 Lines • Show Last 20 Lines