Re-add 3 retries in uv publish

[konstin]

In the publish client, we have to set the client retries to 0 as the retry middleware is incompatible with upload bodies. This however also sets client.retry_policy() to a zero-retry policy, so we need to construct our own policy.

Fixes #12027

[charliermarsh]

Can you add a test plan that we can use to reproduce and test in the future?

[charliermarsh]

Even if it’s not an automated test, it’d be great to be able to look back here and know how to test this.

[konstin]

I've used this script:

# /// script
# requires-python = ">=3.12"
# dependencies = [
#     "flask>=3.1.0,<4",
# ]
# ///

from argparse import ArgumentParser
from flask import Flask, app

app = Flask(__name__)


@app.route("/", defaults={"path": ""}, methods=["GET", "POST"])
@app.route("/<path:path>", methods=["GET", "POST"])
def always_error(path):
    return "Internal Server Error", 500


def main():
    app.run(debug=True, host="0.0.0.0", port=5000)


if __name__ == "__main__":
    main()

With released uv:

$ uv publish -v --publish-url http://127.0.0.1:5000 -u ferris -p f3rr1s scripts/packages/built-by-uv/dist/*
DEBUG uv 0.6.5
Publishing 2 files http://127.0.0.1:5000/
DEBUG Using request timeout of 900s
Uploading built_by_uv-0.1.0-py3-none-any.whl (10.3KiB)
DEBUG Hashing scripts/packages/built-by-uv/dist/built_by_uv-0.1.0-py3-none-any.whl
DEBUG Using username/password basic auth
DEBUG Transient request failure for: http://127.0.0.1:5000/
DEBUG Response code for http://127.0.0.1:5000/: 500 Internal Server Error
DEBUG Upload error response: Internal Server Error
error: Failed to publish `scripts/packages/built-by-uv/dist/built_by_uv-0.1.0-py3-none-any.whl` to http://127.0.0.1:5000/
  Caused by: Upload failed with status code 500 Internal Server Error. Server says: Internal Server Error

With this branch:

$ uv-debug publish -v --publish-url http://127.0.0.1:5000 -u ferris -p f3rr1s scripts/packages/built-by-uv/dist/*
DEBUG uv 0.6.5+7 (7d065acc2 2025-03-07)
Publishing 2 files http://127.0.0.1:5000/
DEBUG Using request timeout of 900s
Uploading built_by_uv-0.1.0-py3-none-any.whl (10.3KiB)
DEBUG Hashing scripts/packages/built-by-uv/dist/built_by_uv-0.1.0-py3-none-any.whl
DEBUG Using username/password basic auth
DEBUG Transient request failure for: http://127.0.0.1:5000/
warning: Transient failure while handling response for http://127.0.0.1:5000/; retrying...
DEBUG Using username/password basic auth
DEBUG Transient request failure for: http://127.0.0.1:5000/
warning: Transient failure while handling response for http://127.0.0.1:5000/; retrying...
DEBUG Using username/password basic auth
DEBUG Transient request failure for: http://127.0.0.1:5000/
warning: Transient failure while handling response for http://127.0.0.1:5000/; retrying...
DEBUG Using username/password basic auth
DEBUG Transient request failure for: http://127.0.0.1:5000/
DEBUG Response code for http://127.0.0.1:5000/: 500 Internal Server Error
DEBUG Upload error response: Internal Server Error
error: Failed to publish `scripts/packages/built-by-uv/dist/built_by_uv-0.1.0-py3-none-any.whl` to http://127.0.0.1:5000/
  Caused by: Upload failed with status code 500 Internal Server Error. Server says: Internal Server Error