def binaryencode(repo, metadataids):
"""encode snapshot metadata into a binary CBOR stream
format (CBOR-encoded):
{
"metadatafiles": {
<metadata oid>: <binary metadata content>,
. . .
},
"auxfiles": {
<file oid>: <binary file content>,
. . .
}
}
"""
metadataauxfilesinfo = set()
bundlepartdict = {"metadatafiles": {}, "auxfiles": {}}
store = repo.svfs.snapshotstore
# store the metadata files
for metadataid in metadataids:
data = store.read(metadataid)
bundlepartdict["metadatafiles"][metadataid] = data
snapmetadata = metadata.snapshotmetadata.deserialize(data)
metadataauxfilesinfo.update(snapmetadata.getauxfilesinfo())
# store files that are mentioned in metadata
for fileid in metadataauxfilesinfo:
bundlepartdict["auxfiles"][fileid] = store.read(fileid)
return "".join(cborutil.streamencode(bundlepartdict))
def serialize(self):
return "".join(cborutil.streamencode(self.todict()))