src/preprocess/CoSQL.py

from Spider import dump_db_json_schema
import json
import os
import copy
from utils import write_jsonl_file, parse
import shutil


def preprocess(args, split):
    data_filepaths = [
        os.path.join(
            os.path.join(args.input_dir, "sql_state_tracking"), f"cosql_{split}.json"
        )
    ]
    db_path = os.path.join(args.input_dir, "database")
    out_db_path = os.path.join(args.output_dir, "database")

    if not os.path.exists(out_db_path):
        shutil.copytree(db_path, out_db_path)

    schema_cache = dict()
    processed_data = []
    for data_filepath in data_filepaths:
        with open(data_filepath, encoding="utf-8") as f:
            cosql = json.load(f)

            for sample in cosql:
                dialog = {
                    "locale": "en",
                    "dialog": [],
                }
                db_id = sample["database_id"]
                if db_id not in schema_cache:
                    schema_cache[db_id] = dump_db_json_schema(
                        db_path + "/" + db_id + "/" + db_id + ".sqlite", db_id
                    )
                schema = schema_cache[db_id]

                dialog["knowledge"] = {
                    "type": "dict",
                    "value": {"db_id": db_id, "schema": schema, "db_path": out_db_path},
                }

                final_dialog = copy.deepcopy(dialog)
                final_dialog["turn"] = "single"
                final_dialog["dialog"].append(
                    {
                        "roles": ["USER"],
                        "utterance": sample["final"]["utterance"]
                        .replace("``", '"')
                        .replace("''", '"')
                        .strip(),
                        "sql": sample["final"]["query"],
                    }
                )

                if split == "train":
                    processed_data.append(final_dialog)
                dialog["turn"] = "multi"
                roles = ["USER", "SYSTEM"]

                for _, turn in enumerate(sample["interaction"]):
                    for idx, utterance in enumerate(
                        turn["utterance"]
                        .replace("``", '"')
                        .replace("''", '"')
                        .strip()
                        .split("|")
                    ):
                        utterance = utterance.strip()

                        dialog["dialog"].append(
                            {"roles": [roles[idx % 2]], "utterance": utterance}
                        )

                    assert dialog["dialog"][-1]["roles"] == ["USER"]
                    dialog["dialog"][-1]["sql"] = turn["query"]

                processed_data.append(dialog)

    write_jsonl_file(processed_data, os.path.join(args.output_dir, f"{split}.jsonl"))


if __name__ == "__main__":
    args = parse()
    preprocess(args, "train")
    preprocess(args, "dev")

    shutil.copyfile(
        os.path.join(args.input_dir, "tables.json"),
        os.path.join(args.output_dir, "tables.json"),
    )