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SG-44786 Reference previous pipeline step publish when building a new scene (Rig, Texture) - #163

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SG-44786 Reference previous pipeline step publish when building a new scene (Rig, Texture)#163
carlos-villavicencio-adsk wants to merge 4 commits into
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ticket/SG-44786-reference-previous-step-output

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@carlos-villavicencio-adsk

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This pull request introduces a robust system for automatically referencing upstream pipeline step workfiles when building a new Maya scene, along with improvements to code structure, error handling, and test coverage. The main feature ensures that when a new scene is built for a dependent step (e.g., Rig or Texture), the published scene from its upstream step (e.g., Model) is referenced in, streamlining artist workflows and reducing manual steps.

…ding

When building a new Maya scene for a downstream step, automatically reference
the upstream step's published Maya workfile into the scene so it opens ready
to work from. Referencing runs in the build prep callback (after the scene is
created/loaded, before it is saved into the draft) and is a no-op unless the
host is Maya and the upstream step actually has a published workfile.

- step_validation: share the hierarchy walk via _find_workfile_asset() and add
  find_upstream_workfile() to resolve the upstream step's published workfile
  asset, returning None for every unresolved case so referencing is skipped.
- reference: add reference_published_workfile(), mirroring reference_revision()
  without its flow_draft_id guard, since a freshly built scene has no draft
  context yet.
- flowam_actions: wire referencing into the build prep callback, Maya-gated like
  the SG-44787 publish check; a reference failure warns but never aborts.

Co-authored-by: Cursor <cursoragent@cursor.com>
Cover find_upstream_workfile(): returns the upstream step's published workfile
asset, and returns None with no configured upstream, an unsupported entity
type, an unresolved workfile schema id, nothing published, or a Flow AM error.

Co-authored-by: Cursor <cursoragent@cursor.com>
Custom loader actions defined their description but only the caption reached
the UI. Surface the description as a tooltip, mirroring the built-in Refresh
action (setToolTip plus driving the hovered signal, since QMenu shows no action
tooltips on its own). Expand the Maya Build New Scene description to explain the
new referencing/validation behavior driven by pipeline_step_dependencies.

Co-authored-by: Cursor <cursoragent@cursor.com>
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codecov Bot commented Aug 27, 2026

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Codecov Report

❌ Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 17.80%. Comparing base (b7f6be1) to head (e77697e).

Files with missing lines Patch % Lines
python/tk_multi_loader/dialog.py 0.00% 4 Missing ⚠️
Additional details and impacted files
@@                                 Coverage Diff                                  @@
##           ticket/SG-44787-validate-previous-step-published     #163      +/-   ##
====================================================================================
- Coverage                                             17.83%   17.80%   -0.03%     
====================================================================================
  Files                                                    32       32              
  Lines                                                  3180     3184       +4     
====================================================================================
  Hits                                                    567      567              
- Misses                                                 2613     2617       +4     
Flag Coverage Δ
Linux 17.80% <0.00%> (-0.03%) ⬇️
Python-3.10 17.80% <0.00%> (-0.03%) ⬇️
Python-3.11 17.80% <0.00%> (-0.03%) ⬇️
Python-3.13 17.80% <0.00%> (-0.03%) ⬇️
Python-3.9 17.80% <0.00%> (-0.03%) ⬇️
Windows 17.80% <0.00%> (-0.03%) ⬇️
macOS 17.80% <0.00%> (-0.03%) ⬇️

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@carlos-villavicencio-adsk carlos-villavicencio-adsk changed the title SG-44786 reference previous step output SG-44786 Reference previous pipeline step publish when building a new scene (Rig, Texture) Aug 27, 2026
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