//Classic:
// New: C:\Users\{USER}\AppData\Local\osu!\
// Old: C:\Program Files\osu!\
// OR C:\Program Files(x86)\osu!\
//Lazer:
// C:\Users\{USER}\AppData\Local\osulazer\
public static bool TryGetPhysicalInstall(OsuVersion V, out FileInfo Found)
{
switch (V)
{
case OsuVersion.Classic:
if ($"{FileSystemExtensions.LocalAppData.FullName}\\osu!\\osu!.exe".TryGetFileInfo(true, out Found))
{
return(true); // C:\Users\{USER}\AppData\Local\osu!\
}
else if ($"{FileSystemExtensions.ProgramFiles.FullName}\\osu!\\osu!.exe".TryGetFileInfo(true, out Found))
{
return(true); // C:\Program Files\osu!\
}
else if ($"{FileSystemExtensions.ProgramFiles86.FullName}\\osu!\\osu!.exe".TryGetFileInfo(true, out Found))
{
return(true); // C:\Program Files(x86)\osu!\
}
break;
case OsuVersion.Lazer:
if ($"{FileSystemExtensions.LocalAppData.FullName}\\osulazer\\osu!.exe".TryGetFileInfo(true, out Found))
{
return(true); // C:\Users\{USER}\AppData\Local\osulazer\
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(V), V, null);
}
Found = null;
return(false);
}
public static IEnumerable <RegistryKey> GetOsuInstallationKeys(OsuVersion V)
{
//Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\
using (RegistryKey UninstallNode = Registry.LocalMachine.OpenSubKey("SOFTWARE\\WOW6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\")) {
foreach (string LocalNodeName in UninstallNode.GetSubKeyNames())
{
using (RegistryKey LocalNode = UninstallNode.OpenSubKey(LocalNodeName)) {
if (TryGetValue(LocalNode, "DisplayName", out object Value) && Value is string LocalAppName)
{
switch (V)
{
case OsuVersion.Classic:
if (LocalAppName.Equals("osu!", StringComparison.InvariantCultureIgnoreCase))
{
yield return(LocalNode);
}
break;
case OsuVersion.Lazer:
if (LocalAppName.Equals("osu!lazer", StringComparison.InvariantCultureIgnoreCase))
{
yield return(LocalNode);
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(V), V, null);
}
}
}
}
}
}
public static bool TryGetInstall(OsuVersion V, out FileInfo Found)
{
#if (DEBUG)
Stopwatch Watch = new Stopwatch();
Watch.Start();
#endif
if (TryGetPhysicalInstall(V, out Found))
{
#if (DEBUG)
Watch.Stop();
Debug.WriteLine($"Found {V} through *file-system* search in {Watch.ElapsedMilliseconds:N2}ms.");
#endif
return(true);
}
if (TryGetRegistryInstall(V, out Found))
{
#if (DEBUG)
Watch.Stop();
Debug.WriteLine($"Found {V} through *registry* search in {Watch.ElapsedMilliseconds:N2}ms.");
#endif
return(true);
}
Debug.WriteLine($"Unable to find {V}.");
Found = null;
return(false);
}
public static bool TryGetInstallLocation(OsuVersion V, out DirectoryInfo Found)
{
if (TryGetInstall(V, out FileInfo FoundFile))
{
Found = FoundFile.Directory;
return(true);
}
Found = null;
return(false);
}
public static bool TryGetRegistryInstall(OsuVersion V, out FileInfo Found)
{
foreach (RegistryKey Key in GetOsuInstallationKeys(V))
{
if (TryGetValue(Key, "UninstallString", out object Value) && Value is string UninstallCommand)
{
if (GetPath(UninstallCommand).TryGetFileInfo(true, out Found))
{
//Debug.WriteLine($"/////Found: {Found}/////");
return(Found != null);
}
}
}
Found = null;
return(false);
}
