odb/source-inmemory: implement `find_abbrev_len()` callback

index f60eecbdbb..44d9bbedec 100644 --- a/odb/source-inmemory.c +++ b/odb/source-inmemory.c @@ -169,6 +169,44 @@ static int odb_source_inmemory_for_each_object(struct odb_source *source, odb_source_inmemory_for_each_object_cb, &payload); } +struct find_abbrev_len_data { + const struct object_id *oid; + unsigned len; +}; + +static int find_abbrev_len_cb(const struct object_id *oid, + struct object_info *oi UNUSED, + void *cb_data) +{ + struct find_abbrev_len_data *data = cb_data; + unsigned len = oid_common_prefix_hexlen(oid, data->oid); + if (len != hash_algos[oid->algo].hexsz && len >= data->len) + data->len = len + 1; + return 0; +} + +static int odb_source_inmemory_find_abbrev_len(struct odb_source *source, + const struct object_id *oid, + unsigned min_len, + unsigned *out) +{ + struct odb_for_each_object_options opts = { + .prefix = oid, + .prefix_hex_len = min_len, + }; + struct find_abbrev_len_data data = { + .oid = oid, + .len = min_len, + }; + int ret; + + ret = odb_source_inmemory_for_each_object(source, NULL, find_abbrev_len_cb, + &data, &opts); + *out = data.len; + + return ret; +} + static int odb_source_inmemory_write_object(struct odb_source *source, const void *buf, unsigned long len, enum object_type type, @@ -275,6 +313,7 @@ struct odb_source_inmemory *odb_source_inmemory_new(struct object_database *odb) source->base.read_object_info = odb_source_inmemory_read_object_info; source->base.read_object_stream = odb_source_inmemory_read_object_stream; source->base.for_each_object = odb_source_inmemory_for_each_object; + source->base.find_abbrev_len = odb_source_inmemory_find_abbrev_len; source->base.write_object = odb_source_inmemory_write_object; source->base.write_object_stream = odb_source_inmemory_write_object_stream;