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find-blob.py
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find-blob.py
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#!/usr/bin/env python
import logging
import os
import sys
from swh.model.cli import identify_object
from swh.model.hashutil import hash_to_bytes, hash_to_hex
from swh.provenance import get_provenance
# TODO: take conninfo as command line arguments.
conninfo = {
"cls": "local",
"db": {"host": "/var/run/postgresql", "port": "5436", "dbname": "provenance"},
}
if __name__ == "__main__":
# Set minimum logging level to INFO.
logging.getLogger().setLevel(logging.INFO)
if len(sys.argv) < 2:
print("usage: find-blob <filename> [limit]")
exit(-1)
obj, swhid = identify_object("content", True, True, sys.argv[1])
sha1 = hash_to_bytes(swhid.split(":")[-1])
print(f"Identifier of object {obj}: {swhid}")
limit = sys.argv[2] if len(sys.argv) > 2 else None
# Get provenance object.
with get_provenance(**conninfo) as provenance:
first = provenance.content_find_first(sha1)
if first is not None:
print(
"======================================================================"
)
print(f"First occurrence of {obj}:")
print(
f" content: swh:1:cnt:{hash_to_hex(first[0])},"
f" revision: swh:1:rev:{hash_to_hex(first[1])},"
f" date: {first[2]},"
f" location: {os.fsdecode(first[3])}"
)
print(
"======================================================================"
)
if limit is None:
print(f"All occurrences of {obj}:")
else:
print(f"First {limit} occurrences of {obj}:")
for occur in provenance.content_find_all(sha1, limit=limit):
print(
f" content: swh:1:cnt:{hash_to_hex(occur[0])},"
f" revision: swh:1:rev:{hash_to_hex(occur[1])},"
f" date: {occur[2]},"
f" location: {os.fsdecode(occur[3])}"
)
else:
logging.warning(
"Requested content not available in the provenance database."
)

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