tree b7d065d7db7fa6cab18c49e5b66780e202d239dc
parent e3c940681a38131a491263d721f14bd8fe528273
author Ignas Anikevicius <240938+aignas@users.noreply.github.com> 1734957894 +0900
committer GitHub <noreply@github.com> 1734957894 +0000
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refactor(pypi): A better error message when the wheel select hits no_match (#2519)

With this change we get the current values of the python configuration
values printed in addition to the message printed previously. This
should help us advise users who don't have their builds configured
correctly.

We are adding an extra `build_setting` which we can set in order to get
an error message instead of a `DEBUG` warning. This has been documented
as part of our config settings and in the `no_match_error` in the
`select` statement.

Example output now
```console
$ bazel cquery --@rules_python//python/config_settings:python_version=3.12 @dev_pip//sphinx
DEBUG: /home/aignas/src/github/aignas/rules_python/python/private/config_settings.bzl:193:14: The current configuration rules_python config flags is:
    @@//python/config_settings:pip_whl: "auto"
    @@//python/config_settings:pip_whl_glibc_version: ""
    @@//python/config_settings:pip_whl_muslc_version: ""
    @@//python/config_settings:pip_whl_osx_arch: "arch"
    @@//python/config_settings:pip_whl_osx_version: ""
    @@//python/config_settings:py_freethreaded: "no"
    @@//python/config_settings:py_linux_libc: "glibc"
    @@//python/config_settings:python_version: "3.12"

If the value is missing, then the default value is being used, see documentation:
https://rules-python.readthedocs.io/en/latest/api/rules_python/python/config_settings
ERROR: /home/aignas/.cache/bazel/_bazel_aignas/6f0de8c9128ee8d5dbf27ba6dcc48bdd/external/+pip+dev_pip/sphinx/BUILD.bazel:6:12: configurable attribute "actual" in @@+pip+dev_pip//sphinx:_no_matching_repository doesn't match this configuration: No matching wheel for current configuration's Python version.

The current build configuration's Python version doesn't match any of the Python
wheels available for this distribution. This distribution supports the following Python
configuration settings:
    //_config:is_cp3.11_py3_none_any
    //_config:is_cp3.13_py3_none_any

To determine the current configuration's Python version, run:
    `bazel config <config id>` (shown further below)

For the current configuration value see the debug message above that is
printing the current flag values. If you can't see the message, then re-run the
build to make it a failure instead by running the build with:
    --@@//python/config_settings:current_config=fail

However, the command above will hide the `bazel config <config id>` message.

This instance of @@+pip+dev_pip//sphinx:_no_matching_repository has configuration identifier 29ffcf8. To inspect its configuration, run: bazel config 29ffcf8.

For more help, see https://bazel.build/docs/configurable-attributes#faq-select-choose-condition.

ERROR: Analysis of target '@@+pip+dev_pip//sphinx:sphinx' failed; build aborted: Analysis failed
INFO: Elapsed time: 0.112s
INFO: 0 processes.
ERROR: Build did NOT complete successfully
```

Fixes #2466

---------

Co-authored-by: Richard Levasseur <richardlev@gmail.com>