Rework PYDANTIC_ERRORS_OMIT_URL to PYDANTIC_ERRORS_INCLUDE_URL

[akx]

Change Summary

As discussed in #1118 (comment), this turns the previously undocumented PYDANTIC_ERRORS_OMIT_URL envvar into PYDANTIC_ERRORS_INCLUDE_URL and adds documentation for it in pydantic_core.ValidationError.__repr__. A more user-surfaced bit of documentation for this would probably be good too.

Related issue number

• see Expose API for setting the global "show errors in reprs" flag #1118 (comment)
• closes Expose API for setting the global "show errors in reprs" flag #1118 (supersedes it)

Checklist

• Unit tests for the changes exist
• Documentation reflects the changes where applicable
• Pydantic tests pass with this pydantic-core (except for expected changes)
• My PR is ready to review, please add a comment including the phrase "please review" to assign reviewers

Selected Reviewer: @davidhewitt

[codecov]

Codecov Report

Merging #1123 (ea60189) into main (bec63db) will increase coverage by 0.08%.
Report is 5 commits behind head on main.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1123      +/-   ##
==========================================
+ Coverage   89.73%   89.82%   +0.08%     
==========================================
  Files         106      106              
  Lines       16380    16443      +63     
  Branches       35       35              
==========================================
+ Hits        14699    14770      +71     
+ Misses       1674     1666       -8     
  Partials        7        7              

Files	Coverage Δ
src/errors/validation_exception.rs	92.95% <100.00%> (+1.17%)	⬆️

... and 8 files with indirect coverage changes

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[codspeed-hq]

CodSpeed Performance Report

Merging #1123 will improve performances by 37.46%

_{Comparing akx:change-errors-envvar (ea60189) with main (d706aa4)}

Summary

⚡ 1 improvements
✅ 139 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	akx:change-errors-envvar	Change
⚡	test_validate_literal[python-few_str_enum]	34.9 µs	25.4 µs	+37.46%

[akx]

Please review (cc @davidhewitt).

I'm not quite sure why the pydantic integration test fails, unless there's something super simple I'm missing here...

[davidhewitt]

I'm pretty sure the integration test failure looks related... 😄

[akx]

@davidhewitt Happy new year! Small review request ping :)

[davidhewitt]

This looks good to me, thanks!