| import os | |
| import sys | |
| import json | |
| import argparse | |
| sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), | |
| os.path.pardir))) | |
| from megatron.data import indexed_dataset | |
| def main(args): | |
| prefixes = set() | |
| for basename in os.listdir(args.input): | |
| prefix, ext = os.path.splitext(basename) | |
| if prefix in prefixes: | |
| continue | |
| if not os.path.isfile(os.path.join(args.input, basename)): | |
| continue | |
| ext_pair = '.bin' if ext == '.idx' else '.idx' | |
| assert os.path.isfile(os.path.join(args.input, prefix) + ext_pair), \ | |
| f'ERROR: {ext_pair} file not provided for {os.path.join(args.input, prefix)}' | |
| prefixes.add(prefix) | |
| builder = None | |
| for prefix in sorted(prefixes): | |
| if builder is None: | |
| dataset = indexed_dataset.make_dataset(os.path.join(args.input, prefix), 'infer') | |
| if isinstance(dataset, indexed_dataset.MMapIndexedDataset): | |
| builder = indexed_dataset.MMapIndexedDatasetBuilder(args.output_prefix + '.bin', dtype=dataset._index.dtype) | |
| else: | |
| builder = indexed_dataset.IndexedDatasetBuilder(args.output_prefix + '.bin') | |
| del dataset | |
| builder.merge_file_(os.path.join(args.input, prefix)) | |
| builder.finalize(args.output_prefix + '.idx') | |
| if __name__ == '__main__': | |
| parser = argparse.ArgumentParser() | |
| group = parser.add_argument_group(title='input data') | |
| group.add_argument('--input', type=str, required=True, | |
| help='Path to directory containing all document files to merge') | |
| group = parser.add_argument_group(title='output data') | |
| group.add_argument('--output_prefix', type=str, required=True, | |
| help='Path to binary output file without suffix') | |
| args = parser.parse_args() | |
| assert os.path.isdir(args.input), \ | |
| f'ERROR: {args.input} is not a directory or does not exist' | |
| assert os.path.isdir(os.path.dirname(args.output_prefix)), \ | |
| f'ERROR: {os.path.dirname(args.output_prefix)} is not a directory or does not exist' | |
| main(args) | |