Add build system version detection as a fallback in GetCurrentVersion():
- Include common/scm_rev.h to access build version information
- Use Common::g_build_version when version.txt doesn't exist
- Automatically create version.txt with build version for future use
- Update comments to clarify version resolution priority
This ensures the updater can properly detect the current application
version even when version.txt hasn't been created yet, while maintaining
the existing priority system for version detection.
Signed-off-by: Zephyron <zephyron@citron-emu.org>
Replace direct file overwriting with a staging-based update mechanism to
resolve "file in use" errors during self-updates.
**Changes:**
- Stage updates to temporary directory instead of direct installation
- Apply staged updates on next application startup (before files are loaded)
- Add static methods for startup update detection and application
- Create update manifest to track staged update metadata
- Backup existing files before applying updates
- Update UI messaging to reflect staged update workflow
**Problem solved:**
The previous direct file replacement approach failed when trying to overwrite
DLLs and executables that were loaded into memory by the running process.
This two-stage approach stages files safely, then applies them on restart
when no files are in use.
**Workflow:**
1. Download and extract update to staging directory
2. Create manifest with update metadata
3. Show "Update ready" message to user
4. On next app startup: detect staged update, apply it, show success message
5. Clean up staging directory after successful application
This ensures reliable self-updates without file access conflicts.
Signed-off-by: Zephyron <zephyron@citron-emu.org>
Implement a complete auto-updater system for Citron with the following features:
- Add UpdaterService class for handling update checks, downloads, and installations
- Add UpdaterDialog with progress tracking and user interaction
- Support both .zip and .7z archives with Windows PowerShell fallback
- Automatic background update checking on startup (3-second delay)
- Silent notifications when updates are available
- Manual "Check for Updates" menu option in Help menu
- User setting to enable/disable automatic update checks (enabled by default)
- Graceful error handling with detailed logging
- Restart functionality after successful updates
- Libarchive integration for cross-platform archive support
The system uses HTTP URLs to bypass SSL library compatibility issues and
provides a smooth user experience with minimal interruption during automatic
checks. Manual updates show a full dialog with progress tracking and changelog
information.
Fixes update distribution workflow and keeps users informed of new releases.
Signed-off-by: Zephyron <zephyron@citron-emu.org>
