swh.provenance.backend.postgresql module

class swh.provenance.backend.postgresql.Db(conn: connection, pool: AbstractConnectionPool | None = None)

Bases: BaseDb

PostgreSQL backend for the Software Heritage provenance index.

create a DB proxy

Parameters:

• conn – psycopg2 connection to the SWH DB

• pool – psycopg2 pool of connections

class swh.provenance.backend.postgresql.PostgresqlProvenance(db, min_pool_conns=1, max_pool_conns=10)

Bases: object

current_version: int = 1

get_db()

put_db(db)

db()

check_config(*, check_write: bool) → bool

whereis(swhid: CoreSWHID) → QualifiedSWHID | None

whereare(*, swhids: List[CoreSWHID]) → List[QualifiedSWHID | None]

Given a list SWHID return a list of provenance info:

See whereis documentation for details on the provenance info.