* Add native Sparkle plugin to enable Mac auto-updates
The Sparkle framework was being injected into the app bundle, but
nothing was initializing it. This adds:
- Native Objective-C plugin (SparklePlugin.m) that initializes
SPUStandardUpdaterController at runtime
- C# wrapper (SparkleUpdater.cs) for Unity to call the native plugin
- SparkleInitializer.cs uses RuntimeInitializeOnLoadMethod to
automatically initialize Sparkle at app startup
- Build script to compile the plugin as a universal binary
The plugin is weak-linked against Sparkle.framework, which is injected
separately by inject_sparkle.sh during the build process.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Convert Sparkle plugin build from clang to Bazel
- Add Sparkle framework as http_archive dependency in MODULE.bazel
- Add BUILD.sparkle to import the framework
- Add BUILD.bazel for SparklePlugin using macos_bundle rule
- Update build_sparkle_plugin.sh to use Bazel instead of direct clang
- Register Apple CC toolchain extension
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Fix symbol exports for SparklePlugin native library
The C functions need to be exported with visibility("default") and
explicit linker flags for Unity P/Invoke to find them. Without this,
the bundle binary had no exported symbols.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Re-enable Sparkle auto-update integration for Mac builds
Restores Sparkle integration that was temporarily removed in #5317:
- Restore inject_sparkle.sh script
- Add Sparkle injection step to mac_build.yml
- Re-enable Sparkle signing and appcast updates in deploy step
Combined with native SparklePlugin that initializes Sparkle at runtime.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Build SparklePlugin.bundle before Unity build
The SparklePlugin.bundle.meta file tells Unity to include the plugin,
but the actual bundle needs to be built by Bazel first.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Convert SparklePlugin Info.plist to XML format
Unity's build system requires Info.plist files in XML format,
but Bazel outputs them in binary plist format.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Replace deprecated --noincompatible_enable_cc_toolchain_resolution flag
with --config=mactools to properly use Apple's Xcode toolchain instead
of LLVM for Darwin bundle builds.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude <noreply@anthropic.com>
