fix for legacy perf sdk versions (#863)

Bugsnag/Assets/Bugsnag/Editor/BugsnagEditPerformanceAssemblyDefinition.cs

@@ -0,0 +1,81 @@
+
+// This script fixes an issue in versions 1.7.0 and below of the BugSnag Performance package where the
+// BugsnagPerformance.asmdef file was not correctly configured to reference the BugsnagUnity package
+// (and therefore cannot access the version of the BugsnagUnityWebRequest class packaged inside it).
+// This script adds the reference to the BugSnag Performance package assembly definition, if not 
+// present, for backwards compatibility with older versions (<=1.7.0).
+
+using System.IO;
+using UnityEditor;
+using UnityEngine;
+
+namespace BugsnagUnity.Editor
+{
+    [InitializeOnLoad]
+    public class BugsnagEditPerformanceAssemblyDefinition
+    {
+        static BugsnagEditPerformanceAssemblyDefinition()
+        {
+            FixBugsnagPerformanceAsmdef();
+        }
+
+        public static void FixBugsnagPerformanceAsmdef()
+        {
+            string projectRoot = Directory.GetParent(Application.dataPath).FullName;
+            string packageCachePath = Path.Combine(projectRoot, "Library", "PackageCache");
+
+            if (!Directory.Exists(packageCachePath))
+            {
+                // Package cache not found, nothing to do
+                return;
+            }
+
+            string[] matchingDirs = Directory.GetDirectories(packageCachePath, "com.bugsnag.performance.unity*");
+            if (matchingDirs.Length == 0)
+            {
+                // Bugsnag Performance package not found, nothing to do
+                return;
+            }
+
+            string bugsnagPackageDir = matchingDirs[0];
+            string asmdefPath = Path.Combine(bugsnagPackageDir, "Runtime", "Scripts", "BugsnagPerformance.asmdef");
+
+            if (!File.Exists(asmdefPath))
+            {
+                // BugsnagPerformance.asmdef not found, nothing to do
+                return;
+            }
+
+            string originalJson = File.ReadAllText(asmdefPath).Trim();
+            string strippedJson = originalJson.Replace(" ", "").Replace("\n", "").Replace("\r", "");
+
+            // Check if the "references":["BugsnagUnity"] entry already exists
+            if (strippedJson.Contains("\"references\":[\"BugsnagUnity\"]"))
+            {
+                // BugsnagUnity reference already present, nothing to do
+                return;
+            }
+
+            string expandedJson = @"{
+    ""name"": ""BugsnagPerformance"",
+    ""rootNamespace"": """",
+    ""references"": [
+        ""BugsnagUnity""
+    ],
+    ""includePlatforms"": [],
+    ""excludePlatforms"": [],
+    ""allowUnsafeCode"": false,
+    ""overrideReferences"": false,
+    ""precompiledReferences"": [],
+    ""autoReferenced"": true,
+    ""defineConstraints"": [],
+    ""versionDefines"": [],
+    ""noEngineReferences"": false
+}";
+
+            File.WriteAllText(asmdefPath, expandedJson);
+            Debug.Log("Updated BugsnagPerformance.asmdef with a reference to BugsnagUnity. If you continue to see errors related to the BugsnagUnityWebRequest class after restarting Unity, please update your BugsnagPerformance package or add a reference in the .asmdef file manually.");
+            AssetDatabase.Refresh();
+        }
+    }
+}

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## TBD
+
+### Bug Fixes
+
+- Fix a compiler error that occurs when using v8.3.0 of this SDK in conjunction with v1.7.0 and below of the BugSnag Unity Performance SDK. [#863](https://github.com/bugsnag/bugsnag-unity/pull/863)
+
 ## 8.3.0 (2024-12-02)
 
 ### Enhancements