Add a duration argument to fuzzing

Author: MihaZupan

Runner/JobBase.cs

@@ -59,7 +59,19 @@ public string GetArgument(string argument, string @default)
             : @default;
     }
 
-    private bool TryGetArgument(string argument, [NotNullWhen(true)] out string? value)
+    public bool TryGetArgument(string argument, out int value)
+    {
+        if (TryGetArgument(argument, out string? stringValue) &&
+            int.TryParse(stringValue, out value))
+        {
+            return true;
+        }
+
+        value = 0;
+        return false;
+    }
+
+    public bool TryGetArgument(string argument, [NotNullWhen(true)] out string? value)
     {
         value = null;
 

Runner/Jobs/BenchmarkLibrariesJob.cs

@@ -82,8 +82,7 @@ private async Task CloneDotnetPerformanceAndSetupToolsAsync()
             await RunProcessAsync("git", $"clone --no-tags --depth=1 -b {branch} --progress https://github.com/{repo} performance", logPrefix: "Clone performance");
 
             // Performance's global.json is out of date
-            byte[] bytes = await HttpClient.GetByteArrayAsync("https://raw.githubusercontent.com/dotnet/runtime/refs/heads/main/global.json");
-            await File.WriteAllBytesAsync("performance/global.json", bytes);
+            await File.WriteAllBytesAsync("performance/global.json", await HttpClient.GetByteArrayAsync("https://raw.githubusercontent.com/dotnet/runtime/refs/heads/main/global.json"));
 
             if (TryGetFlag("medium") || TryGetFlag("long"))
             {

Runner/Jobs/FuzzLibrariesJob.cs

@@ -119,6 +119,7 @@ private async Task RunFuzzersAsync(string fuzzerNamePattern)
             TryGetFlag("long") ? int.MaxValue :
             TryGetFlag("short") ? 600 :
             TryGetFlag("dry") ? 60 :
+            TryGetArgument("duration", out int sec) ? sec :
             3600;
 
         for (int i = 0; i < matchingFuzzers.Length; i++)