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Filesystem storage adapter for Peagen

Project description

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Swarmauri File Storage Adapter

Filesystem-based storage adapter for Peagen that stores binary artifacts on the local disk.

Features

  • Resolves and prepares the configured output_dir on instantiation so uploads can run without additional filesystem setup.
  • Supports an optional prefix to scope all keys inside a nested directory tree while keeping the same adapter instance.
  • upload writes files atomically by copying into a temporary file before an atomic rename, ensuring partially written data is never observed.
  • download returns a :class:io.BytesIO handle positioned at the start of the stored content for immediate consumption by downstream tooling.
  • Convenience helpers such as upload_dir, download_dir, iter_prefix and from_uri mirror the behavior of :class:pathlib.Path operations and make it easy to bulk transfer artifacts.
  • root_uri exposes the workspace as a file:// URI which is used when constructing the URIs returned by upload.

Installation

Install the package with your preferred Python packaging tool:

pip install swarmauri_storage_file
poetry add swarmauri_storage_file
uv pip install swarmauri_storage_file

Usage

from pathlib import Path
import io

from swarmauri_storage_file import FileStorageAdapter

workspace = Path("./artifacts").resolve()
adapter = FileStorageAdapter(output_dir=workspace)

root_uri = adapter.root_uri
print("Root URI:", root_uri)

uri = adapter.upload("example.txt", io.BytesIO(b"hello world"))
print("Stored at:", uri)

downloaded = adapter.download("example.txt").read().decode("utf-8")
print("Contents:", downloaded)

keys = list(adapter.iter_prefix(""))
print("Keys:", keys)

The snippet above resolves a local workspace, uploads an artifact, reads it back as text and inspects the stored keys. URIs returned by upload reuse root_uri (with the relative key appended) so they can be dereferenced by tools that understand file:// locations.

Additional helpers

  • upload_dir recursively walks a source directory and stores each file under an optional destination prefix.
  • download_dir materializes a stored prefix into a destination directory, recreating any nested structure.
  • iter_prefix yields keys rooted at output_dir (including any configured prefix) which is useful for inventory or cleanup tasks.
  • from_uri rebuilds an adapter from a file:// URI previously emitted by root_uri or upload.

Want to help?

If you want to contribute to swarmauri-sdk, read up on our guidelines for contributing that will help you get started.

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