pantsbuild / pants / 22779667066

Build # 22779667066

Build Type

push

github

Committed by web-flow

Commit Message

[pants ng] Partition source files by config. (#23157)

A `partition_sources()` function that partitions a set of source
files by applicable configs. 

A config file is applicable to a source file if it is in or above that
source file's directory. Pants NG will act on each partition 
independently and concurrently, applying that partition's config.

Also adds pyo3 mappings for various Pants NG options-related
types, including SourcePartition.

There is some boilerplate repetition of the `get_*()` methods
in `PyNgOptionsReader` that are similar to those in 
`PyOptionParser`. Alas we can't reuse that code for various
reasons.

**AI disclosure:** I used Claude Code to generate an initial
options_test.rs, which I then inspected and modified manually.

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