Robert, thanks for your explanations, the part about ‘redundant importing’ made it complete sense.
On the other hand, here is what I think myself:
1. The most simplistic approach seems to be, instead of running a shell script – that designer, after adding item into render queue, would simply locate output direction and overwrites it on top. Few extra steps, which are in fact similar amount of time-costly, as running a bash (IMO!)
2. Alternatively, if some script in mind, instead of deleting an item completely, I think the better approach would be ‘rename’ and old output file, and then, render new output with original name. The main advantage you get here – previous version always available for comparison, in case if ‘lets get back to the older revision’ situation kicks in ☺
Think about like this – by script execution, new item (aka, comp) would be pushed to the render queue, and file renaming would be done automatically.
Well, at least now you have two different options to consider ! 🙂
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