first commit

Library/PackageCache/com.unity.ide.rider@3.0.31/Rider/Editor/ProjectGeneration/LastWriteTracker.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace Packages.Rider.Editor.ProjectGeneration
+{
+  internal static class LastWriteTracker
+  {
+    internal static bool HasLastWriteTimeChanged()
+    {
+      if (!IsUnityCompatible()) return false;
+
+      // any external changes of sln/csproj should cause their regeneration
+      // Directory.GetCurrentDirectory(), "*.csproj", "*.sln"
+      var files = new List<FileInfo>();
+
+      var directoryInfo = new DirectoryInfo(Directory.GetCurrentDirectory());
+      files.AddRange(directoryInfo.GetFiles("*.csproj"));
+      files.Add(new FileInfo(Path.Combine(directoryInfo.FullName, directoryInfo.Name + ".sln")));
+
+      return files.Any(a => a.LastWriteTime > RiderScriptEditorPersistedState.instance.LastWrite);
+    }
+
+    internal static void UpdateLastWriteIfNeeded(string path)
+    {
+      if (!IsUnityCompatible()) return;
+
+      var fileInfo = new FileInfo(path);
+      if (fileInfo.Directory == null)
+        return;
+      var directoryInfo = new DirectoryInfo(Directory.GetCurrentDirectory());
+      if (fileInfo.Directory.FullName.Equals(directoryInfo.FullName, StringComparison.OrdinalIgnoreCase) &&
+          (fileInfo.Extension.Equals(".csproj", StringComparison.OrdinalIgnoreCase)
+           || fileInfo.Name.Equals(directoryInfo.Name + ".sln", StringComparison.OrdinalIgnoreCase)))
+      {
+        RiderScriptEditorPersistedState.instance.LastWrite = fileInfo.LastWriteTime;
+      }
+    }
+
+    internal static bool IsUnityCompatible()
+    {
+#if UNITY_2020_1_OR_NEWER
+      return true;
+#else
+      return false;
+#endif
+    }
+  }
+}