Cyrus Leung 4d4d6bad19
[Chore] Separate out vllm.utils.importlib (#27022)
Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>
2025-10-17 00:48:59 +00:00

96 lines
2.7 KiB
Python

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
import fnmatch
from typing import TYPE_CHECKING, Optional
from vllm.utils.import_utils import PlaceholderModule
if TYPE_CHECKING:
from botocore.client import BaseClient
try:
import boto3
except ImportError:
boto3 = PlaceholderModule("boto3") # type: ignore[assignment]
def _filter_allow(paths: list[str], patterns: list[str]) -> list[str]:
return [
path
for path in paths
if any(fnmatch.fnmatch(path, pattern) for pattern in patterns)
]
def _filter_ignore(paths: list[str], patterns: list[str]) -> list[str]:
return [
path
for path in paths
if not any(fnmatch.fnmatch(path, pattern) for pattern in patterns)
]
def glob(
s3: Optional["BaseClient"] = None,
path: str = "",
allow_pattern: list[str] | None = None,
) -> list[str]:
"""
List full file names from S3 path and filter by allow pattern.
Args:
s3: S3 client to use.
path: The S3 path to list from.
allow_pattern: A list of patterns of which files to pull.
Returns:
list[str]: List of full S3 paths allowed by the pattern
"""
if s3 is None:
s3 = boto3.client("s3")
if not path.endswith("/"):
path = path + "/"
bucket_name, _, paths = list_files(s3, path=path, allow_pattern=allow_pattern)
return [f"s3://{bucket_name}/{path}" for path in paths]
def list_files(
s3: "BaseClient",
path: str,
allow_pattern: list[str] | None = None,
ignore_pattern: list[str] | None = None,
) -> tuple[str, str, list[str]]:
"""
List files from S3 path and filter by pattern.
Args:
s3: S3 client to use.
path: The S3 path to list from.
allow_pattern: A list of patterns of which files to pull.
ignore_pattern: A list of patterns of which files not to pull.
Returns:
tuple[str, str, list[str]]: A tuple where:
- The first element is the bucket name
- The second element is string represent the bucket
and the prefix as a dir like string
- The third element is a list of files allowed or
disallowed by pattern
"""
parts = path.removeprefix("s3://").split("/")
prefix = "/".join(parts[1:])
bucket_name = parts[0]
objects = s3.list_objects_v2(Bucket=bucket_name, Prefix=prefix)
paths = [obj["Key"] for obj in objects.get("Contents", [])]
paths = _filter_ignore(paths, ["*/"])
if allow_pattern is not None:
paths = _filter_allow(paths, allow_pattern)
if ignore_pattern is not None:
paths = _filter_ignore(paths, ignore_pattern)
return bucket_name, prefix, paths