Nuke Workfile Template Builder - Keep/Delete Placeholders with Condition?

sebastian.brandhuber · 23 January 2026 22:16

Hi,

I am currently testing the Nuke Workfile Template Builder system, and so far it’s working well for me. However, I have a question regarding the ayon-nuke setting “Keep Placeholders” in the Templated Workfile Build.

At the moment—at least in my case—it does exactly what the name suggests:
it either keeps all placeholders or deletes all placeholders.

However, I was expecting behavior similar to what is shown in this video:

In the video, the setting is turned off, so every placeholder is deleted except the one where a representation was not found.

When I look at the code in ayon-core here:

github.com/ynput/ayon-core

client/ayon_core/pipeline/workfile/workfile_template_builder.py

91f582209

"""Workfile build mechanism using workfile templates.

Build templates are manually prepared using plugin definitions which create
placeholders inside the template which are populated on import.

This approach is very explicit to achieve very specific build logic that can be
targeted by task types and names.

Placeholders are created using placeholder plugins which should care about
logic and data of placeholder items. 'PlaceholderItem' is used to keep track
about its progress.
"""

import os
import re
import collections
import copy
from abc import ABC, abstractmethod
from typing import Optional

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…it seems that this is indeed the intended behavior for this setting — unless I’m misunderstanding something.

Is it currently possible to adapt the behavior shown in the video, so that placeholders are deleted on success and kept only on failure?

Any help is appreciated.

Cheers,
Sebastian