[FileSystem Dock] Add option to show some unsupported files in the dock.

[bruvzg]

Adds editor setting to specify unsupported file extensions to show in the docs, files are opened using OS::shell_open.

Closes godotengine/godot-proposals#10662
Closes godotengine/godot-proposals#677

[JekSun97]

As far as I understand, absolutely any files will be shown?

[AThousandShips]

Any file with an extension specified in the setting

[passivestar]

Works

Also works with symlinks on mac which makes it VCS-friendly (source files can come from elsewhere and still be accessible from godot, including editor plugins)

[Calinou]

Tested locally on Linux, it works as expected.

Folder colors are correctly preserved across restarts. Folders and files can be renamed within the FileSystem dock, even if they are within a symbolic link that points outside the project folder (as expected).

Note that Godot is unable to rename symbolic link folders themselves from the FileSystem dock (here, res://symlink_target/ points to /tmp/symlink_target/ which I have write access to):

Perhaps this could be handled, or at least specifically detected so that a dedicated error message is shown. Renaming symbolic link files works though.

There's still the question of whether we should have a temporary toggle to display all files in the project folder, regardless of the editor setting that determines which file extensions are shown.

PS: In a future PR, we should see if symlinks can have their text be displayed in italic to mimic how KDE's Dolphin displays them.

[bruvzg]

Note that Godot is unable to rename symbolic link folders themselves from the FileSystem dock (here, res://symlink_target/ points to /tmp/symlink_target/ which I have write access to):

I'll take a look tomorrow, probably it's just have hard-coded file handle type check somewhere. #96639

In a future PR, we should see if symlinks can have their text be displayed in italic to mimic how KDE's Dolphin displays them.

We have DirAccess::is_link(path), so should be easy to detect.

For the reference, macOS Finder mark symlinks with the arrow in the corner, and I think Windows do the same, so it might be better option than italic:

#96643

There's still the question of whether we should have a temporary toggle to display all files in the project folder, regardless of the editor setting that determines which file extensions are shown.

There's "Show in file manager" option which should be sufficient for the quick access to all files, and permanently showing all files is unlikely useful.

[akien-mga]

Thanks!