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Migrate Unity iOS/macOS native integration #256

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50908b5
update ios dependencies
melekr Aug 28, 2025
b46f3d4
update macos .bundle
melekr Sep 15, 2025
c42b106
remove deprecated macos assets
melekr Sep 15, 2025
b4cb06a
Update iOS signed xcframeworks and Post Build
melekr Sep 16, 2025
67f97e2
Trim .meta files
melekr Sep 16, 2025
2c57486
Update BacktraceUnityBridge.mm
melekr Sep 16, 2025
876a9d3
Update BacktraceXcodePostBuild.cs
melekr Sep 16, 2025
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117 changes: 117 additions & 0 deletions Editor/BacktraceXcodePostBuild.cs
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#if UNITY_IOS
using System.IO;
using System.Linq;
using UnityEditor;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;
using UnityEditor.iOS.Xcode.Extensions;
using UnityEngine;

namespace Backtrace.Unity.Editor.iOS
{
/// <summary>
/// Links Backtrace.xcframework and CrashReporter.xcframework
/// embeds, signs Backtrace and sets Swift/iOS settings.
/// </summary>
public static class BacktraceXcodePostBuild
{
// Runs late after post-processors
private const int PostBuildOrder = 500;

[PostProcessBuild(PostBuildOrder)]
public static void OnPostProcessBuild(BuildTarget buildTarget, string buildPath)
{
if (buildTarget != BuildTarget.iOS) {
return;
}
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bad formatting


var projectPath = PBXProject.GetPBXProjectPath(buildPath);
var project = new PBXProject();
project.ReadFromFile(projectPath);

#if UNITY_2019_3_OR_NEWER
string appTargetGuid = project.GetUnityMainTargetGuid();
string unityFrameworkTargetGuid = project.GetUnityFrameworkTargetGuid();
#else
string appTargetGuid = project.TargetGuidByName("Unity-iPhone");
string unityFrameworkTargetGuid = appTargetGuid;
#endif
Comment on lines +32 to +38
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Small nit:

what do you think about?

Suggested change
#if UNITY_2019_3_OR_NEWER
string appTargetGuid = project.GetUnityMainTargetGuid();
string unityFrameworkTargetGuid = project.GetUnityFrameworkTargetGuid();
#else
string appTargetGuid = project.TargetGuidByName("Unity-iPhone");
string unityFrameworkTargetGuid = appTargetGuid;
#endif
string appTargetGuid =
#if UNITY_2019_3_OR_NEWER
project.GetUnityMainTargetGuid();
#else
project.TargetGuidByName("Unity-iPhone");
#endif
string unityFrameworkTargetGuid =
#if UNITY_2019_3_OR_NEWER
project.GetUnityFrameworkTargetGuid();
#else
appTargetGuid;
#endif

if (string.IsNullOrEmpty(appTargetGuid) || string.IsNullOrEmpty(unityFrameworkTargetGuid))
{
Debug.LogError("[Backtrace] iOS post-build: could not resolve Xcode targets.");
return;
}

// Locate exported xcframeworks
string FindXCFramework(string folderName)
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can we move it to class instance? It's not popular in C# to have a function declaration inside another function. its also inconsistent with the rest of the library code

{
var matches = Directory.GetDirectories(buildPath, folderName, SearchOption.AllDirectories);
return matches.FirstOrDefault();
}

var backtraceXCPath = FindXCFramework("Backtrace.xcframework");
var crashReporterXCPath = FindXCFramework("CrashReporter.xcframework");

if (string.IsNullOrEmpty(backtraceXCPath))
{
Debug.LogError($"[Backtrace] Could not locate Backtrace.xcframework under: {buildPath}");
return;
}
if (string.IsNullOrEmpty(crashReporterXCPath))
{
Debug.LogError($"[Backtrace] Could not locate CrashReporter.xcframework under: {buildPath}");
return;
}
Comment on lines +52 to +64
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small nit:

Suggested change
var backtraceXCPath = FindXCFramework("Backtrace.xcframework");
var crashReporterXCPath = FindXCFramework("CrashReporter.xcframework");
if (string.IsNullOrEmpty(backtraceXCPath))
{
Debug.LogError($"[Backtrace] Could not locate Backtrace.xcframework under: {buildPath}");
return;
}
if (string.IsNullOrEmpty(crashReporterXCPath))
{
Debug.LogError($"[Backtrace] Could not locate CrashReporter.xcframework under: {buildPath}");
return;
}
var backtraceXCPath = FindXCFramework("Backtrace.xcframework");
if (string.IsNullOrEmpty(backtraceXCPath))
{
Debug.LogError($"[Backtrace] Could not locate Backtrace.xcframework under: {buildPath}");
return;
}
var crashReporterXCPath = FindXCFramework("CrashReporter.xcframework");
if (string.IsNullOrEmpty(crashReporterXCPath))
{
Debug.LogError($"[Backtrace] Could not locate CrashReporter.xcframework under: {buildPath}");
return;
}


// Project-relative paths
string relBacktraceXC = ToProjectRelative(buildPath, backtraceXCPath);
string relCrashReporterXC = ToProjectRelative(buildPath, crashReporterXCPath);

// Add file references
string backtraceFileGuid = project.FindFileGuidByProjectPath(relBacktraceXC);
if (string.IsNullOrEmpty(backtraceFileGuid)) {
backtraceFileGuid = project.AddFile(relBacktraceXC, relBacktraceXC, PBXSourceTree.Source);
}

string crashReporterFileGuid = project.FindFileGuidByProjectPath(relCrashReporterXC);
if (string.IsNullOrEmpty(crashReporterFileGuid)) {
crashReporterFileGuid = project.AddFile(relCrashReporterXC, relCrashReporterXC, PBXSourceTree.Source);
}
Comment on lines +68 to +79
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small nit:

Suggested change
string relCrashReporterXC = ToProjectRelative(buildPath, crashReporterXCPath);
// Add file references
string backtraceFileGuid = project.FindFileGuidByProjectPath(relBacktraceXC);
if (string.IsNullOrEmpty(backtraceFileGuid)) {
backtraceFileGuid = project.AddFile(relBacktraceXC, relBacktraceXC, PBXSourceTree.Source);
}
string crashReporterFileGuid = project.FindFileGuidByProjectPath(relCrashReporterXC);
if (string.IsNullOrEmpty(crashReporterFileGuid)) {
crashReporterFileGuid = project.AddFile(relCrashReporterXC, relCrashReporterXC, PBXSourceTree.Source);
}
// Add file references
var backtraceFileGuid = project.FindFileGuidByProjectPath(relBacktraceXC);
if (string.IsNullOrEmpty(backtraceFileGuid)) {
backtraceFileGuid = project.AddFile(relBacktraceXC, relBacktraceXC, PBXSourceTree.Source);
}
var relCrashReporterXC = ToProjectRelative(buildPath, crashReporterXCPath);
var crashReporterFileGuid = project.FindFileGuidByProjectPath(relCrashReporterXC);
if (string.IsNullOrEmpty(crashReporterFileGuid)) {
crashReporterFileGuid = project.AddFile(relCrashReporterXC, relCrashReporterXC, PBXSourceTree.Source);
}


// Linking
project.AddFileToBuild(unityFrameworkTargetGuid, backtraceFileGuid);
project.AddFileToBuild(unityFrameworkTargetGuid, crashReporterFileGuid);

// Embedding
PBXProjectExtensions.AddFileToEmbedFrameworks(project, appTargetGuid, backtraceFileGuid);
AddBuildPropertyUnique(project, appTargetGuid, "LD_RUNPATH_SEARCH_PATHS", "$(inherited)");
AddBuildPropertyUnique(project, appTargetGuid, "LD_RUNPATH_SEARCH_PATHS", "@executable_path/Frameworks");

// Swift std
project.SetBuildProperty(appTargetGuid, "ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES", "YES");

// Obj-C Linker Flag
AddBuildPropertyUnique(project, unityFrameworkTargetGuid, "OTHER_LDFLAGS", "-ObjC");

project.WriteToFile(projectPath);
Debug.Log("[Backtrace] iOS post-build: frameworks linked/embedded. Swift stdlib enabled.");
}

private static string ToProjectRelative(string buildPath, string absolutePath)
{
var rel = absolutePath.Replace('\\', '/');
var root = (buildPath + "/").Replace('\\', '/');
return rel.StartsWith(root) ? rel.Substring(root.Length) : rel;
}

private static void AddBuildPropertyUnique(PBXProject proj, string targetGuid, string key, string value)
{
var current = proj.GetBuildPropertyForAnyConfig(targetGuid, key);
if (current == null || !current.Split(' ').Contains(value))
{
proj.AddBuildProperty(targetGuid, key, value);
}
}
}
}
#endif
11 changes: 11 additions & 0 deletions Editor/BacktraceXcodePostBuild.cs.meta
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8 changes: 0 additions & 8 deletions Mac/Backtrace-Unity-Mac-bundle.bundle/Contents.meta
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4 changes: 1 addition & 3 deletions Mac/Backtrace-Unity-Mac-bundle.bundle.meta → Mac/BacktraceMacUnity.bundle.meta
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1 change: 1 addition & 0 deletions Mac/BacktraceMacUnity.bundle/Contents/Frameworks/Backtrace.framework/Backtrace
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Versions/Current/Backtrace
1 change: 1 addition & 0 deletions Mac/BacktraceMacUnity.bundle/Contents/Frameworks/Backtrace.framework/Resources
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Versions/Current/Resources
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44 changes: 44 additions & 0 deletions ...ks/Backtrace.framework/Versions/A/Resources/BacktraceResources.bundle/Contents/Info.plist
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>BuildMachineOSBuild</key>
<string>24B83</string>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleIdentifier</key>
<string>Backtrace.io.BacktraceResources</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>BacktraceResources</string>
<key>CFBundlePackageType</key>
<string>BNDL</string>
<key>CFBundleShortVersionString</key>
<string>2.1.0</string>
<key>CFBundleSupportedPlatforms</key>
<array>
<string>MacOSX</string>
</array>
<key>CFBundleVersion</key>
<string>1</string>
<key>DTCompiler</key>
<string>com.apple.compilers.llvm.clang.1_0</string>
<key>DTPlatformBuild</key>
<string>24B75</string>
<key>DTPlatformName</key>
<string>macosx</string>
<key>DTPlatformVersion</key>
<string>15.1</string>
<key>DTSDKBuild</key>
<string>24B75</string>
<key>DTSDKName</key>
<string>macosx15.1</string>
<key>DTXcode</key>
<string>1610</string>
<key>DTXcodeBuild</key>
<string>16B40</string>
<key>LSMinimumSystemVersion</key>
<string>12.4</string>
</dict>
</plist>
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51 changes: 49 additions & 2 deletions ...dle/Contents/_CodeSignature/CodeResources → ...dle/Contents/_CodeSignature/CodeResources
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<plist version="1.0">
<dict>
<key>files</key>
<dict/>
<dict>
<key>Resources/Model.momd/Model.mom</key>
<data>
oY715RjH8RLsZ62wNkTu/4CAgzE=
</data>
<key>Resources/Model.momd/VersionInfo.plist</key>
<data>
VDsrXY+tpRztPEAvUKkp1SRzKWI=
</data>
<key>Resources/PrivacyInfo.xcprivacy</key>
<data>
fZU0MKIt8Fnd2qnYWmCR+ZWPjK0=
</data>
</dict>
<key>files2</key>
<dict/>
<dict>
<key>Resources/Model.momd/Model.mom</key>
<dict>
<key>hash</key>
<data>
oY715RjH8RLsZ62wNkTu/4CAgzE=
</data>
<key>hash2</key>
<data>
sl5S//BxBIQpdRCEXAyH5OINmZhBDvENxjX0kOJ6pj4=
</data>
</dict>
<key>Resources/Model.momd/VersionInfo.plist</key>
<dict>
<key>hash</key>
<data>
VDsrXY+tpRztPEAvUKkp1SRzKWI=
</data>
<key>hash2</key>
<data>
r43Lc4T3JNmt6+aF/bm0VbyDiy1gmLEa4tQkcGuIyTw=
</data>
</dict>
<key>Resources/PrivacyInfo.xcprivacy</key>
<dict>
<key>hash</key>
<data>
fZU0MKIt8Fnd2qnYWmCR+ZWPjK0=
</data>
<key>hash2</key>
<data>
W4GYx3E/DJBKJ4aViszvqnv3rCzspeT5hG4vJvQa8hk=
</data>
</dict>
</dict>
<key>rules</key>
<dict>
<key>^Resources/</key>
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48 changes: 48 additions & 0 deletions ...ceMacUnity.bundle/Contents/Frameworks/Backtrace.framework/Versions/A/Resources/Info.plist
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>BuildMachineOSBuild</key>
<string>24B83</string>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleDisplayName</key>
<string>Backtrace</string>
<key>CFBundleExecutable</key>
<string>Backtrace</string>
<key>CFBundleIdentifier</key>
<string>Backtrace.io.Backtrace</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>Backtrace</string>
<key>CFBundlePackageType</key>
<string>FMWK</string>
<key>CFBundleShortVersionString</key>
<string>2.1.0</string>
<key>CFBundleSupportedPlatforms</key>
<array>
<string>MacOSX</string>
</array>
<key>CFBundleVersion</key>
<string>1</string>
<key>DTCompiler</key>
<string>com.apple.compilers.llvm.clang.1_0</string>
<key>DTPlatformBuild</key>
<string>24B75</string>
<key>DTPlatformName</key>
<string>macosx</string>
<key>DTPlatformVersion</key>
<string>15.1</string>
<key>DTSDKBuild</key>
<string>24B75</string>
<key>DTSDKName</key>
<string>macosx15.1</string>
<key>DTXcode</key>
<string>1610</string>
<key>DTXcodeBuild</key>
<string>16B40</string>
<key>LSMinimumSystemVersion</key>
<string>12.4</string>
</dict>
</plist>
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