[macOS] Re-add support for the _sc_ inside app bundle.

[bruvzg]

See #73424

[akien-mga]

If there are so many caveats to get it working, it's pretty much a given that users will fail using it and will end up getting Godot files in their user paths.

Maybe it would be better to add a --self-contained command line option for all platforms (and make sure it's passed from project manager to editor/game when running) as an alternative to the hacky ._sc_ file.

I don't know if the plist file lets us define default command line arguments for the binary which could then be used to enforce self-contained mode (e.g. for the macOS builds on Steam and EGS)?

[bruvzg]

Maybe it would be better to add a --self-contained command line option for all platforms (and make sure it's passed from project manager to editor/game when running) as an alternative to the hacky .sc file.

It won't help with path randomization, all used data will be written to the temp folder and deleted on restart.

[YuriSizov]

It's a bit surprising that portable tools can't work on macOS. Are there no apps that do that currently? Maybe we don't know about some hack or Gatekeeper setting? :)

[Calinou]

Maybe it would be better to add a --self-contained command line option for all platforms (and make sure it's passed from project manager to editor/game when running) as an alternative to the hacky ._sc_ file.

See godotengine/godot-proposals#2474, which also proposed adding more ways to enable self-contained mode (such as an environment variable).

[bruvzg]

See godotengine/godot-proposals#2474, which also proposed adding more ways to enable self-contained mode (such as an environment variable).

App bundle started form Finder will ignore all user defined environment variables.

[bruvzg]

I have done some testing and updated it with more detailed information, it's actually usable with some extra steps. Also, should work for Steam releases since Steam remove quarantine flag automatically.

Summary of the current changes in this PR:

• Update docs to reflect macOS limitations.
• Re-add support for _sc_ inside .app bundle (not recommended, but usable if you do not move it between different macs).
• _sc_ in the same folder as bundle is still supported.

[akien-mga]

Thanks!

[YuriSizov]

Cherry-picked for 4.0.2.