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Fix possible infinite recursion in asset catalog tree building #118463

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Julian Eisel merged 4 commits from JulianEisel/blender:temp-asset-library-tag-catalogs-dirty into main 2024-02-21 13:02:48 +01:00
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Julian Eisel commented 2024-02-19 17:35:56 +01:00
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PR #118382 exposed an issue where creating a catalog with non-existing
parents would trigger an endless recursion. When creating the missing
parents, the tree would be rebuilt, which would again try to create the
missing parents, for which the tree would be rebuild, etc. It just
happend to work fine for creating single catalogs with existing parents.

Rather than rebuilding the tree immediately, tag the asset library as
having "dirty" catalog data, and let code requiring the up-to-date
catalog tree (node tool menus) ensure the tree is updated if needed.

The asset library loading API should be made clearer and generally
better defined/designed, currently it's all a bit messy & confusing.

PR #118382 exposed an issue where creating a catalog with non-existing parents would trigger an endless recursion. When creating the missing parents, the tree would be rebuilt, which would again try to create the missing parents, for which the tree would be rebuild, etc. It just happend to work fine for creating single catalogs with existing parents. Rather than rebuilding the tree immediately, tag the asset library as having "dirty" catalog data, and let code requiring the up-to-date catalog tree (node tool menus) ensure the tree is updated if needed. The asset library loading API should be made clearer and generally better defined/designed, currently it's all a bit messy & confusing.
Julian Eisel added the
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Julian Eisel added 1 commit 2024-02-19 17:36:09 +01:00 
PR #118382 exposed an issue where creating a catalog with non-existing
parents would trigger an endless recursion. When creating the missing
parents, the tree would be rebuilt, which would again try to create the
missing parents, for which the tree would be rebuild, etc. It just
happend to work fine for creating single catalogs with existing parents.

Rather than rebuilding the tree immediately, tag the asset library as
having "dirty" catalog data, and let code requiring the up-to-date
catalog tree (node tool menus) ensure the tree is updated if needed.

The asset library loading API should be made clearer and generally
better defined/designed, currently it's all a bit messy & confusing.

In my testing this exposed a thread race, a separate PR/commit will be
made for that.
Julian Eisel added this to the Brush Assets & Asset Shelf project 2024-02-19 17:36:30 +01:00
Julian Eisel requested review from Hans Goudey 2024-02-19 17:36:37 +01:00
Julian Eisel added 1 commit 2024-02-19 17:42:03 +01:00
Julian Eisel added 1 commit 2024-02-19 18:09:57 +01:00
Hans Goudey approved these changes 2024-02-19 18:12:18 +01:00
Hans Goudey left a comment
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Nice, this is much better, thanks.

Nice, this is much better, thanks.
Julian Eisel added 1 commit 2024-02-21 13:02:08 +01:00
Julian Eisel merged commit 56fa8c59af into main 2024-02-21 13:02:48 +01:00
Julian Eisel deleted branch temp-asset-library-tag-catalogs-dirty 2024-02-21 13:02:51 +01:00
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Reference: blender/blender#118463
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