implement uv pip config

[woutervh]

I've been searching in the uv docs and issue-tracker, but I did not find my answer.
Apologies if I overlooked something.

As a pip-user, I regularly use "pip config list" to display the config pip is actually seeing.
see https://pip.pypa.io/en/stable/cli/pip_config/

Questions:

• is there currently a way to see what config uv is actually using (after merging several sources)?
• is there a plan to implement something like "pip config"

Usecase

I'm currently troubleshooting why an (private) index-url in pyproject.toml does not have any effect:

[tool.uv]
# see https://docs.astral.sh/uv/reference/settings/
index-url = "https://__token__:<TOKEN>@gitlab.com/api/v4/groups/<GROUPID>/-/packages/pypi/simple"

uv --version
0.4.15

[agustinvalencia]

Similar case, I couldn't manage to set an self-hosted pypi repository. This pushed me back to poetry
Unfortunately I cannot share logs as it is company related, but back your issue up

[zanieb]

We support showing your configuration with a --show-settings flag, e.g., uv pip install foo --show-settings.

We'll probably implement a nicer command for it in the future.

We're improving the index experience in #7481 which should help with this in general!

[wimglenn]

Hi @zanieb, could this use a serialization format for ease of use with a deserializer? Something like TOML or RON, perhaps? If I understand correctly, it's currently just debug output with no stability guarantees.