Add option to use Satori GC

Builders/Builder.cs

@@ -3,7 +3,9 @@
 
 using System;
 using System.IO;
+using System.IO.Compression;
 using osu.Desktop.Deploy.Uploaders;
+using osu.Framework.IO.Network;
 
 namespace osu.Desktop.Deploy.Builders
 {
@@ -44,6 +46,28 @@ protected void RunDotnetPublish(string? extraArgs = null, string? outputDir = nu
                                          + $" {Program.ProjectName}");
         }
 
+        protected void AttachSatoriGC(string? outputDir = null)
+        {
+            outputDir ??= Program.StagingPath;
+
+            if (Program.UseSatoriGC)
+            {
+                Logger.Write("Downloading Satori GC release...");
+                string satoriArchivePath = Path.GetTempFileName();
+                using (var req = new FileWebRequest(satoriArchivePath, $"https://github.com/ppy/Satori/releases/latest/download/{RuntimeIdentifier}.zip"))
+                    req.Perform();
+
+                Logger.Write("Extracting Satori GC into staging folder...");
+
+                using (var stream = File.OpenRead(satoriArchivePath))
+                using (var archive = new ZipArchive(stream))
+                {
+                    foreach (var entry in archive.Entries)
+                        entry.ExtractToFile(Path.Combine(outputDir, entry.Name), true);
+                }
+            }
+        }
+
         private static void refreshDirectory(string directory)
         {
             if (Directory.Exists(directory))

Builders/LinuxBuilder.cs

@@ -35,29 +35,29 @@ public override Uploader CreateUploader()
         }
 
         // https://learn.microsoft.com/en-us/dotnet/standard/io/how-to-copy-directories
-        static void CopyDirectory(string sourceDir, string destinationDir, bool recursive)
+        private static void copyDirectory(string sourceDir, string destinationDir, bool recursive)
         {
             var dir = new DirectoryInfo(sourceDir);
-        
+
             if (!dir.Exists)
                 throw new DirectoryNotFoundException($"Source directory not found: {dir.FullName}");
-        
+
             DirectoryInfo[] dirs = dir.GetDirectories();
-        
+
             Directory.CreateDirectory(destinationDir);
-        
+
             foreach (FileInfo file in dir.GetFiles())
             {
                 string targetFilePath = Path.Combine(destinationDir, file.Name);
                 file.CopyTo(targetFilePath);
             }
-        
+
             if (recursive)
             {
                 foreach (DirectoryInfo subDir in dirs)
                 {
                     string newDestinationDir = Path.Combine(destinationDir, subDir.Name);
-                    CopyDirectory(subDir.FullName, newDestinationDir, true);
+                    copyDirectory(subDir.FullName, newDestinationDir, true);
                 }
             }
         }
@@ -67,13 +67,14 @@ public override void Build()
             if (Directory.Exists(stagingTarget))
                 Directory.Delete(stagingTarget, true);
 
-            CopyDirectory(Path.Combine(Program.TemplatesPath, app_dir), stagingTarget, true);
+            copyDirectory(Path.Combine(Program.TemplatesPath, app_dir), stagingTarget, true);
 
             File.CreateSymbolicLink(Path.Combine(stagingTarget, ".DirIcon"), "osu.png");
 
             Program.RunCommand("chmod", $"+x {stagingTarget}/AppRun");
 
             RunDotnetPublish(outputDir: publishTarget);
+            AttachSatoriGC(outputDir: publishTarget);
         }
     }
 }

Builders/MacOSBuilder.cs

@@ -62,6 +62,7 @@ public override void Build()
             Program.RunCommand("cp", $"-r \"{Path.Combine(Program.TemplatesPath, app_dir)}\" \"{stagingTarget}\"");
 
             RunDotnetPublish(outputDir: publishTarget);
+            AttachSatoriGC(outputDir: publishTarget);
 
             // without touching the app bundle itself, changes to file associations / icons / etc. will be cached at a macOS level and not updated.
             Program.RunCommand("touch", $"\"{stagingTarget}\" {Program.StagingPath}", false);

Builders/WindowsBuilder.cs

@@ -48,7 +48,8 @@ public override Uploader CreateUploader()
                                                .Where(File.Exists)
                                                .Last();
 
-                extraArgs += $" --signTemplate=\"\\\"{signToolPath}\\\" sign /td sha256 /fd sha256 /dlib \\\"{dllPath}\\\" /dmdf \\\"{Path.GetFullPath(Program.WindowsCodeSigningMetadataPath)}\\\" /tr http://timestamp.acs.microsoft.com {{{{file...}}}}";
+                extraArgs +=
+                    $" --signTemplate=\"\\\"{signToolPath}\\\" sign /td sha256 /fd sha256 /dlib \\\"{dllPath}\\\" /dmdf \\\"{Path.GetFullPath(Program.WindowsCodeSigningMetadataPath)}\\\" /tr http://timestamp.acs.microsoft.com {{{{file...}}}}";
             }
 
             return new WindowsVelopackUploader(app_name, os_name, RuntimeIdentifier, channel, extraArgs: extraArgs);
@@ -57,6 +58,7 @@ public override Uploader CreateUploader()
         public override void Build()
         {
             RunDotnetPublish();
+            AttachSatoriGC();
 
             bool rcEditCommand =
                 Program.RunCommand("tools/rcedit-x64.exe", $"\"{Path.Combine(Program.StagingPath, "osu!.exe")}\""

Program.cs

@@ -46,6 +46,8 @@ internal static class Program
 
         public static bool IncrementVersion => bool.Parse(ConfigurationManager.AppSettings["IncrementVersion"] ?? "true");
 
+        public static bool UseSatoriGC => bool.TryParse(Environment.GetEnvironmentVariable("USE_SATORI_GC"), out bool useSatori) && useSatori;
+
         public static string SolutionPath { get; private set; } = null!;
 
         private static bool interactive;