cosmo-torrent 0.2.0

Data downloader library for Cosmology related data

cosmo-torrent

This project offers a library to access data from central storage location and a command line tool to upload data.

This can be used to avoid shipping large data sets within Python packages.

Data upload

After installing cosmo-torrent the command line command

$ cosmo-torrent-upload --help
Usage: cosmo-torrent-upload [OPTIONS] FOLDER

Options:
  --identifier TEXT  data set identifier for later download  [required]
  --user TEXT        user name for scp to server
  --force            overwrite existing dataset
  --help             Show this message and exit.

can be used to upload data to a central storage location (details in the Internals section below).

For example:

$ cosmo-torrent-upload --identifier test_data.2024.08 --user schmittu .

uploads the content of the current working folder using the identifier test_data.2024.08.

Data accesss

The data can be accessed using the identifier used for the upload. On first access, the data is downloaded to a local cache folder. For future access, the dataset can be accessed directly.

from cosmo_torrent import data_set

test_data_folder = data_set('test_data.2024.07')

Here test_data_folder will now be a local folder with the specified data set.

Internals

The data is stored at /net/ipa-gate.phys.ethz.ch/export/ipa/public_html/cosmo-torrent at the DPHYS NAS which can be accessed via https://share.phys.ethz.ch/~ipa/cosmo-torrent