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"""
The GCSWorkspace class provides an interface for interacting with a file workspace, and
stores the files in a Google Cloud Storage bucket.
"""
from __future__ import annotations
import inspect
import logging
from io import IOBase
from pathlib import Path
from typing import Literal
from google.cloud import storage
from google.cloud.exceptions import NotFound
from autogpt.core.configuration.schema import UserConfigurable
from .base import FileStorage, FileStorageConfiguration
logger = logging.getLogger(__name__)
class GCSFileStorageConfiguration(FileStorageConfiguration):
bucket: str = UserConfigurable("autogpt", from_env="STORAGE_BUCKET")
class GCSFileStorage(FileStorage):
"""A class that represents a Google Cloud Storage."""
_bucket: storage.Bucket
def __init__(self, config: GCSFileStorageConfiguration):
self._bucket_name = config.bucket
self._root = config.root
# Add / at the beginning of the root path
if not self._root.is_absolute():
self._root = Path("/").joinpath(self._root)
self._gcs = storage.Client()
super().__init__()
@property
def root(self) -> Path:
"""The root directory of the file storage."""
return self._root
@property
def restrict_to_root(self) -> bool:
"""Whether to restrict generated paths to the root."""
return True
@property
def is_local(self) -> bool:
"""Whether the storage is local (i.e. on the same machine, not cloud-based)."""
return False
def initialize(self) -> None:
logger.debug(f"Initializing {repr(self)}...")
try:
self._bucket = self._gcs.get_bucket(self._bucket_name)
except NotFound:
logger.info(f"Bucket '{self._bucket_name}' does not exist; creating it...")
self._bucket = self._gcs.create_bucket(self._bucket_name)
def get_path(self, relative_path: str | Path) -> Path:
# We set GCS root with "/" at the beginning
# but relative_to("/") will remove it
# because we don't actually want it in the storage filenames
return super().get_path(relative_path).relative_to("/")
def _get_blob(self, path: str | Path) -> storage.Blob:
path = self.get_path(path)
return self._bucket.blob(str(path))
def open_file(
self, path: str | Path, mode: Literal["w", "r"] = "r", binary: bool = False
) -> IOBase:
"""Open a file in the storage."""
blob = self._get_blob(path)
blob.reload() # pin revision number to prevent version mixing while reading
return blob.open(f"{mode}b" if binary else mode)
def read_file(self, path: str | Path, binary: bool = False) -> str | bytes:
"""Read a file in the storage."""
return self.open_file(path, "r", binary).read()
async def write_file(self, path: str | Path, content: str | bytes) -> None:
"""Write to a file in the storage."""
blob = self._get_blob(path)
blob.upload_from_string(
data=content,
content_type=(
"text/plain"
if type(content) is str
# TODO: get MIME type from file extension or binary content
else "application/octet-stream"
),
)
if self.on_write_file:
path = Path(path)
if path.is_absolute():
path = path.relative_to(self.root)
res = self.on_write_file(path)
if inspect.isawaitable(res):
await res
def list_files(self, path: str | Path = ".") -> list[Path]:
"""List all files (recursively) in a directory in the storage."""
path = self.get_path(path)
return [
Path(blob.name).relative_to(path)
for blob in self._bucket.list_blobs(
prefix=f"{path}/" if path != Path(".") else None
)
]
def list_folders(
self, path: str | Path = ".", recursive: bool = False
) -> list[Path]:
"""List 'directories' directly in a given path or recursively in the storage."""
path = self.get_path(path)
folder_names = set()
# List objects with the specified prefix and delimiter
for blob in self._bucket.list_blobs(prefix=path):
# Remove path prefix and the object name (last part)
folder = Path(blob.name).relative_to(path).parent
if not folder or folder == Path("."):
continue
# For non-recursive, only add the first level of folders
if not recursive:
folder_names.add(folder.parts[0])
else:
# For recursive, need to add all nested folders
for i in range(len(folder.parts)):
folder_names.add("/".join(folder.parts[: i + 1]))
return [Path(f) for f in folder_names]
def delete_file(self, path: str | Path) -> None:
"""Delete a file in the storage."""
path = self.get_path(path)
blob = self._bucket.blob(str(path))
blob.delete()
def delete_dir(self, path: str | Path) -> None:
"""Delete an empty folder in the storage."""
# Since GCS does not have directories, we don't need to do anything
pass
def exists(self, path: str | Path) -> bool:
"""Check if a file or folder exists in GCS storage."""
path = self.get_path(path)
# Check for exact blob match (file)
blob = self._bucket.blob(str(path))
if blob.exists():
return True
# Check for any blobs with prefix (folder)
prefix = f"{str(path).rstrip('/')}/"
blobs = self._bucket.list_blobs(prefix=prefix, max_results=1)
return next(blobs, None) is not None
def make_dir(self, path: str | Path) -> None:
"""Create a directory in the storage if doesn't exist."""
# GCS does not have directories, so we don't need to do anything
pass
def rename(self, old_path: str | Path, new_path: str | Path) -> None:
"""Rename a file or folder in the storage."""
old_path = self.get_path(old_path)
new_path = self.get_path(new_path)
blob = self._bucket.blob(str(old_path))
# If the blob with exact name exists, rename it
if blob.exists():
self._bucket.rename_blob(blob, new_name=str(new_path))
return
# Otherwise, rename all blobs with the prefix (folder)
for blob in self._bucket.list_blobs(prefix=f"{old_path}/"):
new_name = str(blob.name).replace(str(old_path), str(new_path), 1)
self._bucket.rename_blob(blob, new_name=new_name)
def clone_with_subroot(self, subroot: str | Path) -> GCSFileStorage:
"""Create a new GCSFileStorage with a subroot of the current storage."""
file_storage = GCSFileStorage(
GCSFileStorageConfiguration(
root=Path("/").joinpath(self.get_path(subroot)),
bucket=self._bucket_name,
)
)
file_storage._gcs = self._gcs
file_storage._bucket = self._bucket
return file_storage
def __repr__(self) -> str:
return f"{__class__.__name__}(bucket='{self._bucket_name}', root={self._root})"
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