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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
import glob
from os import path
import re
from typing import Iterable, Iterator, List, Optional
import pytest
from typing_extensions import TypedDict
from swh.core.api.serializers import msgpack_loads
from swh.core.db import BaseDb
from swh.core.db.pytest_plugin import postgresql_fact
from swh.core.utils import numfile_sortkey as sortkey
from swh.model.model import Content, Directory, DirectoryEntry, Revision
from swh.model.tests.swh_model_data import TEST_OBJECTS
import swh.provenance
from swh.provenance.postgresql.archive import ArchivePostgreSQL
from swh.provenance.storage.archive import ArchiveStorage
SQL_DIR = path.join(path.dirname(swh.provenance.__file__), "sql")
SQL_FILES = [
sqlfile
for sqlfile in sorted(glob.glob(path.join(SQL_DIR, "*.sql")), key=sortkey)
if "-without-path-" not in sqlfile
]
provenance_db = postgresql_fact(
"postgresql_proc", dbname="provenance", dump_files=SQL_FILES
)
@pytest.fixture
def provenance(provenance_db):
"""return a working and initialized provenance db"""
from swh.provenance.postgresql.provenancedb_with_path import (
ProvenanceWithPathDB as ProvenanceDB,
)
BaseDb.adapt_conn(provenance_db)
prov = ProvenanceDB(provenance_db)
# in test sessions, we DO want to raise any exception occurring at commit time
prov.raise_on_commit = True
return prov
@pytest.fixture
def swh_storage_with_objects(swh_storage):
"""return a Storage object (postgresql-based by default) with a few of each
object type in it
The inserted content comes from swh.model.tests.swh_model_data.
"""
for obj_type in (
"content",
"skipped_content",
"directory",
"revision",
"release",
"snapshot",
"origin",
"origin_visit",
"origin_visit_status",
):
getattr(swh_storage, f"{obj_type}_add")(TEST_OBJECTS[obj_type])
return swh_storage
@pytest.fixture
def archive_direct(swh_storage_with_objects):
return ArchivePostgreSQL(swh_storage_with_objects.get_db().conn)
@pytest.fixture
def archive_api(swh_storage_with_objects):
return ArchiveStorage(swh_storage_with_objects)
@pytest.fixture(params=["archive", "db"])
def archive(request, swh_storage_with_objects):
"""Return a ArchivePostgreSQL based StorageInterface object"""
# this is a workaround to prevent tests from hanging because of an unclosed
# transaction.
# TODO: refactor the ArchivePostgreSQL to properly deal with
# transactions and get rif of this fixture
if request.param == "db":
archive = ArchivePostgreSQL(conn=swh_storage_with_objects.get_db().conn)
yield archive
archive.conn.rollback()
else:
yield ArchiveStorage(swh_storage_with_objects)
def get_datafile(fname):
return path.join(path.dirname(__file__), "data", fname)
def load_repo_data(repo):
data = {"revision": [], "directory": [], "content": []}
with open(get_datafile(f"{repo}.msgpack"), "rb") as fobj:
for etype, value in msgpack_loads(fobj.read()):
data[etype].append(value)
return data
def filter_dict(d, keys):
return {k: v for (k, v) in d.items() if k in keys}
def fill_storage(storage, data):
storage.content_add_metadata(
Content.from_dict(content) for content in data["content"]
)
storage.directory_add(
[
Directory(
entries=tuple(
[
DirectoryEntry.from_dict(
filter_dict(entry, ("name", "type", "target", "perms"))
)
for entry in dir["entries"]
]
)
)
for dir in data["directory"]
]
)
storage.revision_add(Revision.from_dict(revision) for revision in data["revision"])
class SynthRelation(TypedDict):
prefix: Optional[str]
path: str
src: bytes
dst: bytes
rel_ts: float
class SynthRevision(TypedDict):
sha1: bytes
date: float
msg: str
R_C: List[SynthRelation]
R_D: List[SynthRelation]
D_C: List[SynthRelation]
def synthetic_result(filename: str) -> Iterator[SynthRevision]:
"""Generates dict representations of synthetic revisions found in the synthetic
file (from the data/ directory) given as argument of the generator.
Generated SynthRevision (typed dict) with the following elements:
"sha1": (bytes) sha1 of the revision,
"date": (float) timestamp of the revision,
"msg": (str) commit message of the revision,
"R_C": (list) new R---C relations added by this revision
"R_D": (list) new R-D relations added by this revision
"D_C": (list) new D-C relations added by this revision
Each relation above is a SynthRelation typed dict with:
"path": (str) location
"src": (bytes) sha1 of the source of the relation
"dst": (bytes) sha1 of the destination of the relation
"rel_ts": (float) timestamp of the target of the relation
(related to the timestamp of the revision)
"""
with open(get_datafile(filename), "r") as fobj:
yield from _parse_synthetic_file(fobj)
def _parse_synthetic_file(fobj: Iterable[str]) -> Iterator[SynthRevision]:
"""Read a 'synthetic' file and generate a dict representation of the synthetic
revision for each revision listed in the synthetic file.
"""
regs = [
"(?P<revname>R[0-9]{2,4})?",
"(?P<reltype>[^| ]*)",
"([+] )?(?P<path>[^| +]*?)[/]?",
"(?P<type>[RDC]) (?P<sha1>[0-9a-z]{40})",
"(?P<ts>-?[0-9]+(.[0-9]+)?)",
]
regex = re.compile("^ *" + r" *[|] *".join(regs) + r" *(#.*)?$")
current_rev: List[dict] = []
for m in (regex.match(line) for line in fobj):
if m:
d = m.groupdict()
if d["revname"]:
if current_rev:
yield _mk_synth_rev(current_rev)
current_rev.clear()
current_rev.append(d)
if current_rev:
yield _mk_synth_rev(current_rev)
def _mk_synth_rev(synth_rev) -> SynthRevision:
assert synth_rev[0]["type"] == "R"
rev = SynthRevision(
sha1=bytes.fromhex(synth_rev[0]["sha1"]),
date=float(synth_rev[0]["ts"]),
msg=synth_rev[0]["revname"],
R_C=[],
R_D=[],
D_C=[],
)
current_path = None
# path of the last R-D relation we parsed, used a prefix for next D-C
# relations
for row in synth_rev[1:]:
if row["reltype"] == "R---C":
assert row["type"] == "C"
rev["R_C"].append(
SynthRelation(
prefix=None,
path=row["path"],
src=rev["sha1"],
dst=bytes.fromhex(row["sha1"]),
rel_ts=float(row["ts"]),
)
)
current_path = None
elif row["reltype"] == "R-D":
assert row["type"] == "D"
rev["R_D"].append(
SynthRelation(
prefix=None,
path=row["path"],
src=rev["sha1"],
dst=bytes.fromhex(row["sha1"]),
rel_ts=float(row["ts"]),
)
)
current_path = row["path"]
elif row["reltype"] == "D-C":
assert row["type"] == "C"
rev["D_C"].append(
SynthRelation(
prefix=current_path,
path=row["path"],
src=rev["R_D"][-1]["dst"],
dst=bytes.fromhex(row["sha1"]),
rel_ts=float(row["ts"]),
)
)
return rev

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