POSYDON-code / POSYDON-code/POSYDON

[BUG]: Downloaded data, redownloaded

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@maxbriel is already working on this.

Since Aug 23, 2026.

  • #904 by @maxbriel — open
enhancement
Dominant language
Python
Stars
45
Forks
37
Avg merge
8d 20h
Merged PRs (30d)
5

Description

Describe the bug
When downloading the data, we should check for the already existing data, such that the user doesn't redownload the same data, unless it is explicitly requested.

For example, I downloaded the auxiliary data and then downloaded DR2_1Zsun, which redownloaded the auxiliary data first.

To Reproduce

get-posydon-data auxiliary
get-posydon-data DR2_1Zsun

Expected behavior
Skip the auxiliary data if already present/up-to-date.

POSYDON Version:
v2.1.1

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the get-posydon-data auxiliary and get-posydon-data DR2_1Zsun commands described in the issue, then trace the data-download entry point they invoke. Verify how existing data and its up-to-date state are detected. Done means a second download skips already current auxiliary data while an explicit redownload still works.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
cli
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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