Steam

[HannahPadd]

This pr contains changes needed for the steam release to run.
Changes include:

• Server can send to the gui if drivers or udev rules aren't installed.
• Server can attempt to install drivers.

This PR relies on this PR from solarXR SlimeVR/SolarXR-Protocol#198

[ImSapphire]

Suggested change

	val isLinux = System.getProperty("os.name").lowercase().contains("linux")
	val isLinux = OperatingSystem.currentPlatform == OperatingSystem.LINUX

[ImSapphire]

I feel like the previous way of re-assigning to dir is more readable. There's also a missing return statement, and XDG_DATA_HOME is not being handled

Suggested change

	val dir = System.getenv("SLIMEVR_SOCKET_DIR")
	if (dir != null) return dir
	if (currentPlatform == LINUX) {
	dir = System.getenv("XDG_RUNTIME_DIR")
	if (dir != null) return dir
	val isPressureVessel = System.getenv("PRESSURE_VESSEL_RUNTIME")?.isNotEmpty()
	if (isPressureVessel == true) {
	System.getenv("HOME")?.let { Path(it, ".local", "share", "dev.slimevr.SlimeVR") }
	} else {
	val runtimeDir = System.getenv("XDG_RUNTIME_DIR")
	return if (!runtimeDir.isNullOrBlank()) {
	runtimeDir
	} else {
	System.getProperty("java.io.tmpdir")
	}
	}
	var dir = System.getenv("SLIMEVR_SOCKET_DIR")
	if (dir != null) return dir
	if (currentPlatform == LINUX) {
	val isPressureVessel = System.getenv("PRESSURE_VESSEL_RUNTIME")?.isNotEmpty() == true
	if (isPressureVessel) {
	dir = System.getenv("XDG_DATA_HOME")?.let { Path(it, CONFIG_IDENTIFIER) }
	?: System.getenv("HOME")?.let { Path(it, ".local", "share", CONFIG_IDENTIFIER) }
	if (dir != null) return dir
	}
	dir = System.getenv("XDG_RUNTIME_DIR")
	if (dir != null) return dir

[HannahPadd]

I don't think putting them in the config folder is correct.

[loucass003]

i dont like ra-assigning. Split it in a smaller function

[ImSapphire]

I don't think putting them in the config folder is correct.

It doesn't put them in the config folder, CONFIG_IDENTIFIER is just a const that is defined as dev.slimevr.SlimeVR. It's used for the folder in .local/share as well, look at resolveLogDirectory

[loucass003]

I agree with all the proposed changes except the last one. Once this is ready we can merge once v19 is out