USD AR Plugin Walking Skeleton

[foundrytom]

What

Produce a basic AR2 plugin based on the resolver example that can be invoked in a USD stage composition context (e.g. via usdview or usdcat).

No other functionality that logging method entry for all relevant methods.

Why

Will help its understand how USD invokes the AR API as part of https://github.com/OpenAssetIO/usdOpenAssetIOResolver/issues/5, and provide a framework for an OpenAssetIO host.

ACs

Plugin

• No USD Context
• Pass-through to ArDefaultResolver with logging (TF_DEBUG) for method entry (plus string args) to ensure working code path is logged.
• Registered as the primary resolver.
• TDD coverage of debug logging

Project

• Repo configured with coding standards from OpenAssetIO main
• Build infrastructure
  • Minimal build of USD required for testing (Docker?)
  • CI cache covers USD build artifacts (if required)
• Skeleton test framework
  • Initially pytest see for ref for programmatic USD invocation.
  • Longer term C++, but not in scope for this work.
  • TDD as a primary framework for describing expected functionality for new work.
  • Basic README

Out of scope

• Incorporating OpenAssetIO/defining OpenAssetIO behaviour.

Notes

The initial skeleton plugin implementation is temporary, but long-term this is needs to be a robust, supported project.