82 lines
2.2 KiB
Python
82 lines
2.2 KiB
Python
import os
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from typing import Optional
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import fire
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from aiokit.utils import sync_fu
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from nexus.pylon.client import (
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DownloadError,
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PylonClient,
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)
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from nexus.pylon.proto.file_pb2 import FileResponse as FileResponsePb
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def resolve_path(filepath):
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if os.path.isabs(filepath):
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return filepath
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cwd = os.environ.get('BUILD_WORKING_DIRECTORY', os.getcwd())
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filepath = os.path.join(cwd, filepath)
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return filepath
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async def fetch(
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iter,
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output: str,
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):
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collected = bytes()
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try:
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last_len = 0
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last_source = ''
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async for resp in iter:
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if resp.HasField('status'):
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if resp.status == FileResponsePb.Status.BEGIN_TRANSMISSION:
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print(f'Started transmission from {resp.source}...', end='\r')
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last_len = 0
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last_source = resp.source
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collected = bytes()
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elif resp.HasField('chunk'):
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if len(collected) - last_len > 1024 * 100:
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print(f'Loaded {len(collected)} bytes from {resp.source}', end='\r')
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last_len = len(collected)
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last_source = resp.source
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collected += resp.chunk.content
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with open(resolve_path(output), 'wb') as f:
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print(f'Completed! Loaded {len(collected)} bytes from {last_source}')
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f.write(collected)
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except DownloadError:
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print('File not found')
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async def fetch_by_md5(
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md5: str,
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output: str,
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proxy: Optional[str] = None,
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resolve_proxy: Optional[str] = None,
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):
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if proxy and not resolve_proxy:
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resolve_proxy = proxy
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p = PylonClient(proxy=proxy, resolve_proxy=resolve_proxy)
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return await fetch(iter=p.by_md5(md5=md5), output=output)
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async def fetch_by_doi(
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doi: str,
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output: str,
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proxy: Optional[str] = None,
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resolve_proxy: Optional[str] = None,
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):
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if proxy and not resolve_proxy:
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resolve_proxy = proxy
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p = PylonClient(proxy=proxy, resolve_proxy=resolve_proxy)
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return await fetch(iter=p.by_doi(doi=doi), output=output)
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def main():
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fire.Fire({
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'doi': sync_fu(fetch_by_doi),
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'md5': sync_fu(fetch_by_md5),
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})
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if __name__ == '__main__':
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main()
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