Warn when running low on disk space when performing certain editor operations

[Calinou]

• Follow-up to Warn if available disk space is low when Movie Maker mode is enabled #62418.

The following editor operations will now warn the user if the available space on the target disk is low:

• Saving a scene (< 1 GiB).
• Importing a set of resources (< 2 GiB).
• Downloading export templates (< 4 GiB).
• Installing export templates (< 4 GiB).
• Exporting a project (< 10 GiB).
• Packing a project as a ZIP file (< 10 GiB).

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• This closes Warn when disk space is low before installing export templates in the editor #95111.
• See Godot writes empty files when there is no space left on disk. #45354
  and Invalid PCK on export when running out of disk space #105742.

[Alex2782]

I increased it to 100GB everywhere to test the warning.

The warning is not yet displayed in the Advanced Import Settings dialog, so I think it should be included there as well, or is there anything against it? There are also import dialogs for "Font" and "Audio".

screenshot

On MacOS, according to "Finder" I have more free space.

[Calinou]

The warning is not yet displayed in the Advanced Import Settings dialog, so I think it should be included there as well, or is there anything against it? There are also import dialogs for "Font" and "Audio".

I've added the warning to all advanced import settings dialogs.

On MacOS, according to "Finder" I have more free space.

This is a GiB (binary prefix) versus GB (decimal prefix) difference. It's why when you buy a 500 GB hard drive, it appears to be 465 GB in the OS 🙂

[bruvzg]

On MacOS, according to "Finder" I have more free space.

This is a GiB (binary prefix) versus GB (decimal prefix) difference.

This + Finder also include "purgeable" space (local time machine snapshots and similar stuff).

[Alex2782]

Looks good, tested on MacOS and Android.

[akien-mga]

Exporting a project (< 10 GiB).
Packing a project as a ZIP file (< 10 GiB).

I think this might be too restrictive.

Some people can use Godot on mobile devices (tablets, phones, Steam Deck) where storage is at a premium, and it's totally reasonable to export e.g. a simple 2D game with 200 MB of assets when you're on a 64 GB SD card with only 3-4 GB left.

Ideally we should get a feeling for how heavy the PCK is going to be (e.g. by checking the size of .godot) so that the warning is somewhat more accurate.

I haven't tested the PR to check, but if we can't get a level of accuracy which actually matches the developer's available disk space and project needs, maybe we should just have the possibility to disable these warnings for users who know they're operating within narrow limits.

[insomniacUNDERSCORElemon]

Some people can use Godot ... where storage is at a premium, and it's totally reasonable to export e.g. a simple 2D game with 200 MB of assets when you're on a 64 GB SD card with only 3-4 GB left

I would say there should be different types of warnings. In output (warnings/errors depending on severity), and in extreme cases (0-50MiB free) warn the user with a dialog when they open a project. Especially as this will continue being an issue until the user intervenes to free up space.

I'm guessing even a modest .godot cleanup could also be a quiet error prevention done at project open as well (this might also be a less annoying log message that still hints at an issue). At least in my case I'm pretty sure the 1.7GiB was all just no-longer-needed cached data related to shaders/fog.

Either way it would be nice to get something in for 4.4.2 (or 4.5). At least for the worst-case-scenarios, even if it does not touch the export process (although I would hope that actually running out of data here would just fail/cancel the export).