Way to preserve upload-time metadata for pull-through repository

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
45/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Active
Tech stack
python
Domain
api, backend

Research direction

Start by reviewing the simple repository API JSON responses mentioned in the issue and the related constraints in #1370. Define how a pull-through repository should preserve the source upload-time metadata, including whether this is configurable, and verify that copied packages expose the expected original timestamp.

Written by the indexing model from the issue text.

Description

Feature Triage-Needed

Is your feature request related to a problem? Please describe.
I would like to use pulp's python plugin for a pull-through repository that mirrors pypi, so that I always have packages I depend on available locally (even if pypi goes down or a package is pulled from it, similar to left-pad). However, I also make use of dependency cooldowns using pip's --uploaded-prior-to and uv's --exclude-newer. A pulp pull-through repository shows the source upload-time metadata before it is copied, but after copying shows the time it was copied (uploaded to pulp). This prevents me from using pulp as a pull-through mirror alongside --uploaded-prior-to/--exclude-newer.

The upload-time changing when the package is copied seems like it could generally cause confusion or difficulty anyway.

Describe the solution you'd like
I don't have a clear idea of how this could be solved, but it makes sense to me for pull-through repositories to be transparent, and not change the upload-time metadata. Perhaps it could be an option when enabling pull-through?

Additional context
#1370 currently prevents actually using --uploaded-prior-to/--exclude-newer, but inspecting pulp's simple repository API JSON responses has made it apparent that this would be an issue for my use-case even if #1370 were fixed.

Dominant language
Python
Stars
49
Forks
88
Avg merge
1d 10h
Merged PRs (30d)
31

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