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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Adds basic keyring auth support for `uv` commands. Adds clone of `pip`'s
`--keyring-provider subprocess` argument (using CLI `keyring` tool).
See issue: https://github.com/astral-sh/uv/issues/1520
## Test Plan
<!-- How was it tested? -->
Hard to write full-suite unit tests due to reliance on
`process::Command` for `keyring` cli
Manually tested end-to-end in a project with GCP artifact registry using
keyring password:
```bash
➜ uv pip uninstall watchdog
Uninstalled 1 package in 46ms
- watchdog==4.0.0
➜ cargo run -- pip install --index-url https://<redacted>/python/simple/ --extra-index-url https://<redacted>/pypi-mirror/simple/ watchdog
Finished dev [unoptimized + debuginfo] target(s) in 0.18s
Running `target/debug/uv pip install --index-url 'https://<redacted>/python/simple/' --extra-index-url 'https://<redacted>/pypi-mirror/simple/' watchdog`
error: HTTP status client error (401 Unauthorized) for url (https://<redacted>/pypi-mirror/simple/watchdog/)
➜ cargo run -- pip install --keyring-provider subprocess --index-url https://<redacted>/python/simple/ --extra-index-url https://<redacted>/pypi-mirror/simple/ watchdog
Finished dev [unoptimized + debuginfo] target(s) in 0.17s
Running `target/debug/uv pip install --keyring-provider subprocess --index-url 'https://<redacted>/python/simple/' --extra-index-url 'https://<redacted>/pypi-mirror/simple/' watchdog`
Resolved 1 package in 2.34s
Installed 1 package in 27ms
+ watchdog==4.0.0
```
`requirements.txt`
```
#
# This file is autogenerated by pip-compile with Python 3.10
# by the following command:
#
# .bin/generate-requirements
#
--index-url https://<redacted>/python/simple/
--extra-index-url https://<redacted>/pypi-mirror/simple/
...
```
```bash
➜ cargo run -- pip install --keyring-provider subprocess -r requirements.txt
Finished dev [unoptimized + debuginfo] target(s) in 0.19s
Running `target/debug/uv pip install --keyring-provider subprocess -r requirements.txt`
Resolved 205 packages in 23.52s
Built <redacted>
...
Downloaded 47 packages in 19.32s
Installed 195 packages in 276ms
+ <redacted>
...
```
---------
Co-authored-by: Thomas Gilgenast <thomas@vant.ai>
Co-authored-by: Zanie Blue <contact@zanie.dev>
Address a few pedantic lints
lints are separated into separate commits so they can be reviewed
individually.
I've not added enforcement for any of these lints, but that could be
added if desirable.
Closes https://github.com/astral-sh/uv/issues/1709
Closes https://github.com/astral-sh/uv/issues/1371
Tested with the reproduction provided in #1709 which gets past the HTTP
401.
Reuses the same copying logic we introduced in
https://github.com/astral-sh/uv/pull/1874 to ensure authentication is
attached to file URLs with a realm that matches that of the index. I had
to move the authentication logic into a new crate so it could be used in
`distribution-types`.
We will want to something more robust in the future, like track all
realms with authentication in a central store and perform lookups there.
That's what `pip` does and it allows consolidation of logic like netrc
lookups. That refactor feels significant though, and I'd like to get
this fixed ASAP so this is a minimal fix.
