Differential D6712 Diff 24392 swh/provenance/postgresql/provenance.py

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swh/provenance/postgresql/provenance.py

# Copyright (C) 2021 The Software Heritage developers		# Copyright (C) 2021 The Software Heritage developers
# See the AUTHORS file at the top-level directory of this distribution		# See the AUTHORS file at the top-level directory of this distribution
# License: GNU General Public License version 3, or any later version		# License: GNU General Public License version 3, or any later version
# See top-level LICENSE file for more information		# See top-level LICENSE file for more information

from __future__ import annotations		from __future__ import annotations

from contextlib import contextmanager		from contextlib import contextmanager
from datetime import datetime		from datetime import datetime
import itertools		import itertools
import logging		import logging
from types import TracebackType		from types import TracebackType
from typing import Dict, Generator, Iterable, List, Optional, Set, Type, Union		from typing import Dict, Generator, Iterable, List, Optional, Set, Type, Union

import psycopg2.extensions		import psycopg2.extensions
import psycopg2.extras		import psycopg2.extras
from typing_extensions import Literal

from swh.core.db import BaseDb		from swh.core.db import BaseDb
from swh.core.statsd import statsd		from swh.core.statsd import statsd
from swh.model.model import Sha1Git		from swh.model.model import Sha1Git

from ..interface import (		from ..interface import (
		DirectoryData,
EntityType,		EntityType,
ProvenanceResult,		ProvenanceResult,
ProvenanceStorageInterface,		ProvenanceStorageInterface,
RelationData,		RelationData,
RelationType,		RelationType,
RevisionData,		RevisionData,
)		)

▲ Show 20 Lines • Show All 45 Lines • ▼ Show 20 Lines	class ProvenanceStoragePostgreSql:
def denormalized(self) -> bool:		def denormalized(self) -> bool:
return "denormalized" in self.flavor		return "denormalized" in self.flavor

@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "close"})		@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "close"})
def close(self) -> None:		def close(self) -> None:
self.conn.close()		self.conn.close()

@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "content_add"})		@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "content_add"})
def content_add(		def content_add(self, cnts: Dict[Sha1Git, datetime]) -> bool:
self, cnts: Union[Iterable[Sha1Git], Dict[Sha1Git, Optional[datetime]]]		try:
) -> bool:		if cnts:
return self._entity_set_date("content", cnts)		sql = """
		INSERT INTO content(sha1, date) VALUES %s
		ON CONFLICT (sha1) DO
		UPDATE SET date=LEAST(EXCLUDED.date,content.date)
		"""
		page_size = self.page_size or len(cnts)
		with self.transaction() as cursor:
		psycopg2.extras.execute_values(
		cursor, sql, argslist=cnts.items(), page_size=page_size
		)
		return True
		except: # noqa: E722
		# Unexpected error occurred, rollback all changes and log message
		LOGGER.exception("Unexpected error")
		if self.raise_on_commit:
		raise
		return False

@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "content_find_first"})		@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "content_find_first"})
def content_find_first(self, id: Sha1Git) -> Optional[ProvenanceResult]:		def content_find_first(self, id: Sha1Git) -> Optional[ProvenanceResult]:
sql = "SELECT * FROM swh_provenance_content_find_first(%s)"		sql = "SELECT * FROM swh_provenance_content_find_first(%s)"
with self.transaction(readonly=True) as cursor:		with self.transaction(readonly=True) as cursor:
cursor.execute(query=sql, vars=(id,))		cursor.execute(query=sql, vars=(id,))
row = cursor.fetchone()		row = cursor.fetchone()
return ProvenanceResult(**row) if row is not None else None		return ProvenanceResult(**row) if row is not None else None

@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "content_find_all"})		@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "content_find_all"})
def content_find_all(		def content_find_all(
self, id: Sha1Git, limit: Optional[int] = None		self, id: Sha1Git, limit: Optional[int] = None
) -> Generator[ProvenanceResult, None, None]:		) -> Generator[ProvenanceResult, None, None]:
sql = "SELECT * FROM swh_provenance_content_find_all(%s, %s)"		sql = "SELECT * FROM swh_provenance_content_find_all(%s, %s)"
with self.transaction(readonly=True) as cursor:		with self.transaction(readonly=True) as cursor:
cursor.execute(query=sql, vars=(id, limit))		cursor.execute(query=sql, vars=(id, limit))
yield from (ProvenanceResult(**row) for row in cursor)		yield from (ProvenanceResult(**row) for row in cursor)

@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "content_get"})		@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "content_get"})
def content_get(self, ids: Iterable[Sha1Git]) -> Dict[Sha1Git, datetime]:		def content_get(self, ids: Iterable[Sha1Git]) -> Dict[Sha1Git, datetime]:
return self._entity_get_date("content", ids)		dates: Dict[Sha1Git, datetime] = {}
		sha1s = tuple(ids)
		if sha1s:
		# TODO: consider splitting this query in several ones if sha1s is too big!
		values = ", ".join(itertools.repeat("%s", len(sha1s)))
		sql = f"""
		SELECT sha1, date
		FROM content
		WHERE sha1 IN ({values})
		AND date IS NOT NULL
		"""
		with self.transaction(readonly=True) as cursor:
		cursor.execute(query=sql, vars=sha1s)
		dates.update((row["sha1"], row["date"]) for row in cursor)
		return dates

@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "directory_add"})		@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "directory_add"})
def directory_add(		def directory_add(self, dirs: Dict[Sha1Git, DirectoryData]) -> bool:
self, dirs: Union[Iterable[Sha1Git], Dict[Sha1Git, Optional[datetime]]]		data = [(sha1, rev.date, rev.flat) for sha1, rev in dirs.items()]
) -> bool:		try:
return self._entity_set_date("directory", dirs)		if data:
		sql = """
		INSERT INTO directory(sha1, date, flat) VALUES %s
		ON CONFLICT (sha1) DO
		UPDATE SET
		date=LEAST(EXCLUDED.date, directory.date),
		flat=(EXCLUDED.flat OR directory.flat)
		"""
		page_size = self.page_size or len(data)
		with self.transaction() as cursor:
		psycopg2.extras.execute_values(
		cur=cursor, sql=sql, argslist=data, page_size=page_size
		)
		return True
		except: # noqa: E722
		# Unexpected error occurred, rollback all changes and log message
		LOGGER.exception("Unexpected error")
		if self.raise_on_commit:
		raise
		return False

@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "directory_get"})		@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "directory_get"})
def directory_get(self, ids: Iterable[Sha1Git]) -> Dict[Sha1Git, datetime]:		def directory_get(self, ids: Iterable[Sha1Git]) -> Dict[Sha1Git, DirectoryData]:
return self._entity_get_date("directory", ids)		result: Dict[Sha1Git, DirectoryData] = {}
		sha1s = tuple(ids)
		if sha1s:
		# TODO: consider splitting this query in several ones if sha1s is too big!
		values = ", ".join(itertools.repeat("%s", len(sha1s)))
		sql = f"""
		SELECT sha1, date, flat
		FROM directory
		WHERE sha1 IN ({values})
		AND date IS NOT NULL
		"""
		with self.transaction(readonly=True) as cursor:
		cursor.execute(query=sql, vars=sha1s)
		result.update(
		(row["sha1"], DirectoryData(date=row["date"], flat=row["flat"]))
		for row in cursor
		)
		return result

@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "entity_get_all"})		@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "entity_get_all"})
def entity_get_all(self, entity: EntityType) -> Set[Sha1Git]:		def entity_get_all(self, entity: EntityType) -> Set[Sha1Git]:
with self.transaction(readonly=True) as cursor:		with self.transaction(readonly=True) as cursor:
cursor.execute(f"SELECT sha1 FROM {entity.value}")		cursor.execute(f"SELECT sha1 FROM {entity.value}")
return {row["sha1"] for row in cursor}		return {row["sha1"] for row in cursor}

@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "location_add"})		@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "location_add"})
▲ Show 20 Lines • Show All 166 Lines • ▼ Show 20 Lines	) -> Dict[Sha1Git, Set[RelationData]]:
return self._relation_get(relation, ids, reverse)		return self._relation_get(relation, ids, reverse)

@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "relation_get_all"})		@statsd.timed(metric=STORAGE_DURATION_METRIC, tags={"method": "relation_get_all"})
def relation_get_all(		def relation_get_all(
self, relation: RelationType		self, relation: RelationType
) -> Dict[Sha1Git, Set[RelationData]]:		) -> Dict[Sha1Git, Set[RelationData]]:
return self._relation_get(relation, None)		return self._relation_get(relation, None)

def _entity_get_date(
self,
entity: Literal["content", "directory", "revision"],
ids: Iterable[Sha1Git],
) -> Dict[Sha1Git, datetime]:
dates: Dict[Sha1Git, datetime] = {}
sha1s = tuple(ids)
if sha1s:
# TODO: consider splitting this query in several ones if sha1s is too big!
values = ", ".join(itertools.repeat("%s", len(sha1s)))
sql = f"""
SELECT sha1, date
FROM {entity}
WHERE sha1 IN ({values})
AND date IS NOT NULL
"""
with self.transaction(readonly=True) as cursor:
cursor.execute(query=sql, vars=sha1s)
dates.update((row["sha1"], row["date"]) for row in cursor)
return dates

def _entity_set_date(
self,
entity: Literal["content", "directory"],
dates: Union[Iterable[Sha1Git], Dict[Sha1Git, Optional[datetime]]],
) -> bool:
data = dates if isinstance(dates, dict) else dict.fromkeys(dates)
try:
if data:
sql = f"""
INSERT INTO {entity}(sha1, date) VALUES %s
ON CONFLICT (sha1) DO
UPDATE SET date=LEAST(EXCLUDED.date,{entity}.date)
"""
page_size = self.page_size or len(data)
with self.transaction() as cursor:
psycopg2.extras.execute_values(
cursor, sql, argslist=data.items(), page_size=page_size
)
return True
except: # noqa: E722
# Unexpected error occurred, rollback all changes and log message
LOGGER.exception("Unexpected error")
if self.raise_on_commit:
raise
return False

def _relation_get(		def _relation_get(
self,		self,
relation: RelationType,		relation: RelationType,
ids: Optional[Iterable[Sha1Git]],		ids: Optional[Iterable[Sha1Git]],
reverse: bool = False,		reverse: bool = False,
) -> Dict[Sha1Git, Set[RelationData]]:		) -> Dict[Sha1Git, Set[RelationData]]:
result: Dict[Sha1Git, Set[RelationData]] = {}		result: Dict[Sha1Git, Set[RelationData]] = {}

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