feat: Finalize App Platform detection

Author: JordanViknar

src/Classes/SteamApp.luau

@@ -10,7 +10,14 @@ local SteamApp = {}
 
 SteamApp.Interface = {}
 
-function SteamApp.Interface.new(appID: number, name: string, library: string, location: string, platform: ("windows" | "linux")?, launchArguments: string?): SteamApp
+function SteamApp.Interface.new(
+	appID: number,
+	name: string,
+	library: string,
+	location: string,
+	platform: ("windows" | "linux")?,
+	launchArguments: string?
+): SteamApp
 	-- Is the app configured to use STweaks ?
 	local tweaksEnabled = false
 	if launchArguments and launchArguments:find(Metadata.executable) then

src/Steam/Configuration.luau

@@ -124,6 +124,15 @@ type appmanifest_vdf = {
 	},
 }
 
+type compat_vdf = {
+	platform_overrides: {
+		[number]: {
+			dest: "windows" | "linux",
+			src: "windows" | "linux",
+		},
+	},
+}
+
 -- STweaker
 
 -- TODO
@@ -161,6 +170,18 @@ function Configuration.Public.getSteamConfiguration(): string?
 	Logging.write("info", "User game configurations loaded.")
 	Logging.separator()
 
+	--[[
+		Chapter 2.5 : We recover compat.vdf to know if a game has ever used its Windows version.
+		We can't use it directly to get the platform details, as games that have previously used Proton will still be set to "windows" here.
+		Logically, a game completely absent from this list is a native Linux game.
+	]]
+	local compat_vdf: compat_vdf = Configuration.Private.VDFHandler(
+		process.env.HOME .. "/.local/share/Steam/userdata/" .. activeUserSteamID3 .. "/config/compat.vdf",
+		"Failed to parse compat.vdf file."
+	)
+	Logging.write("info", "Compatibility data loaded.")
+	Logging.separator()
+
 	--[[
 		Chapter 3 : We recover the Steam library config to get the list of games.
 		We can't use just libraryfolders.vdf to get the game IDs, as Steam seems to not always update it immediately.
@@ -170,14 +191,13 @@ function Configuration.Public.getSteamConfiguration(): string?
 	Logging.write("info", "Steam libraries loaded.")
 	Logging.separator()
 
-	--print(userGameConfigurations, libraries)
-
 	local steamApps = {}
+	local steamAppCount = 0
 
 	Async.asyncForEach(libraries.libraryfolders, function(_, library)
 		-- We check if the folder exists
 		if not fs.metadata(library.path).exists then
-			Logging.write("warning", "Steam library " .. library.path .. " doesn't exist. Skipping...")
+			Logging.write("warn", "Steam library " .. library.path .. " doesn't exist. Skipping...")
 		else
 			Logging.write("data", "Checking library " .. library.path)
 			local appManifestFilenames = Filesystem.getFilenamePatternInDirectory(library.path .. "/steamapps", "appmanifest_")
@@ -188,22 +208,39 @@ function Configuration.Public.getSteamConfiguration(): string?
 
 				Logging.write("info", "Found " .. appManifest.AppState.appid .. " : " .. appManifest.AppState.name)
 
+				local location = library.path .. "/steamapps/common/" .. appManifest.AppState.installdir
+
+				-- Does the game have launch options set ?
 				local configuration = userGameConfigurations[appManifest.AppState.appid]
 				local launchOptions
 				if configuration then
 					launchOptions = configuration.LaunchOptions
 				end
 
-				local steamApp = SteamApp.new(
-					appManifest.AppState.appid,
-					appManifest.AppState.name,
-					library.path,
-					library.path .. "/steamapps/common/" .. appManifest.AppState.installdir,
-					appManifest.AppState.MountedConfig.platform_override_source,
-					launchOptions
-				)
+				-- Do we know the game's platform
+				local osPlatform: ("windows" | "linux")? = appManifest.AppState.MountedConfig.platform_override_source
+				if not osPlatform then
+					local compat = compat_vdf.platform_overrides[appManifest.AppState.appid]
+					-- The app being absent from the compat.vdf list means it can only be a native Linux game
+					if not compat then
+						osPlatform = "linux"
+					else
+						-- Gah ! We still don't have the platform... time to check manually.
+						Logging.write(
+							"warn",
+							"Platform not found for " .. appManifest.AppState.appid .. " : " .. appManifest.AppState.name .. ". Using manual check..."
+						)
+						if not Filesystem.directoryContainsLinuxData(location) then
+							osPlatform = "windows"
+						else
+							osPlatform = "linux"
+						end
+					end
+				end
 
-				table.insert(steamApps, steamApp)
+				local steamApp = SteamApp.new(appManifest.AppState.appid, appManifest.AppState.name, library.path, location, osPlatform, launchOptions)
+				steamApps[steamApp.appID] = steamApp
+				steamAppCount += 1
 			end)
 		end
 	end)
@@ -212,6 +249,8 @@ function Configuration.Public.getSteamConfiguration(): string?
 
 	print(steamApps)
 
+	Logging.write("info", "Loaded " .. steamAppCount .. " Steam apps.")
+
 	return
 end
 

src/Utilities/Filesystem.luau

@@ -89,4 +89,21 @@ function Filesystem.getFilenamePatternInDirectory(directory: string, pattern: st
 	return result
 end
 
+function Filesystem.directoryContainsLinuxData(path: string): boolean
+	local files = fs.readDir(path)
+	for _, file in ipairs(files) do
+		if file:find(".sh") or not file:find(".") and not fs.isDir(path) then
+			file = path .. "/" .. file
+
+			Logging.write("data", "Checking file " .. file)
+			local contents = fs.readFile(file)
+
+			if contents:find("Linux") or contents:find("shell") then
+				return true
+			end
+		end
+	end
+	return false
+end
+
 return Filesystem

src/Utilities/Logging.luau

@@ -1,5 +1,5 @@
 type LogColor = "red" | "green" | "yellow" | "blue" | "magenta" | "cyan" | "white" | "grey" | "orange" | "reset"
-type LogType = "info" | "warning" | "error" | "debug" | "download" | "data" | "speed" | "special"
+type LogType = "info" | "warn" | "error" | "debug" | "data" | "speed" | "special"
 
 --[=[
 	@class Utilities.Logging
@@ -27,18 +27,15 @@ function Logging.Public.write(type: LogType, message: string | number)
 		info = function(text)
 			print(time .. " - [" .. color("blue", "Info") .. "] : " .. text)
 		end,
-		warning = function(text)
-			print(time .. " - [" .. color("yellow", "Warning") .. "] : " .. color("yellow", text))
+		warn = function(text)
+			print(time .. " - [" .. color("yellow", "Warn") .. "] : " .. color("yellow", text))
 		end,
 		error = function(text)
 			print(time .. " - " .. color("red", "[Error] : " .. text))
 		end,
 		debug = function(text)
 			print(time .. " - [" .. color("grey", "Debug") .. "] : " .. color("grey", text))
 		end,
-		download = function(text)
-			print(time .. " - [" .. color("green", "Download") .. "] : " .. text)
-		end,
 		data = function(text)
 			print(time .. " - [" .. color("magenta", "Data") .. "] : " .. text)
 		end,

src/init.luau

@@ -27,7 +27,7 @@ function Application.start()
 
 	-- Development version detection
 	if metadata.version:find("dev") then
-		Logging.write("warning", "This is a development version of " .. metadata.name .. " !")
+		Logging.write("warn", "This is a development version of " .. metadata.name .. " !")
 		Logging.separator()
 		-- Put the arguments inside the cache folder for testing purposes
 		fs.writeFile(metadata.folders.cache .. "/arguments.txt", table.concat(process.args, "\n"))

stylua.toml

@@ -1,4 +1,4 @@
-column_width = 175
+column_width = 160
 line_endings = "Unix"
 indent_type = "Tabs"
 indent_width = 4