From a0692a56b6838b2f9ea6b987fe0044a8022bdd28 Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Wed, 13 Nov 2019 01:19:18 +0100
Subject: [PATCH] Force exclusion of Core `6.0.0 Alpha 1` for packages with API
 compatibility

---
 .../package/PackageUpdateDispatcher.class.php | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php b/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
index f6f1711d15..1b9323280e 100644
--- a/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
@@ -552,6 +552,7 @@ class PackageUpdateDispatcher extends SingletonFactory {
 					}
 					
 					// register compatibility versions of this update package version.
+					// @deprecated 5.2
 					if (isset($versionData['compatibility'])) {
 						foreach ($versionData['compatibility'] as $version) {
 							$compatibilityInserts[] = [
@@ -559,6 +560,31 @@ class PackageUpdateDispatcher extends SingletonFactory {
 								'version' => $version
 							];
 						}
+						
+						// The API compatibility versions are deprecated, any package that exposes them must
+						// exclude at most `com.woltlab.wcf` in version `6.0.0 Alpha 1`.
+						if (!empty($compatibilityInserts)) {
+							if (!isset($versionData['excludedPackages'])) $versionData['excludedPackages'] = [];
+							$excludeCore60 = '6.0.0 Alpha 1';
+							
+							$coreExclude = null;
+							$versionData['excludedPackages'] = array_filter($versionData['excludedPackages'], function($excludedPackage) use (&$coreExclude) {
+								if ($excludedPackage['excludedPackage'] === 'com.woltlab.wcf') {
+									$coreExclude = $excludedPackage['excludedPackageVersion'];
+									return false;
+								}
+								
+								return true;
+							});
+							
+							if ($coreExclude === null || Package::compareVersion($coreExclude, $excludeCore60, '>')) {
+								$versionData['excludedPackages'][] = [
+									'packageUpdateVersionID' => $packageUpdateVersionID,
+									'excludedPackage' => 'com.woltlab.wcf',
+									'excludedPackageVersion' => $excludeCore60,
+								];
+							}
+						}
 					}
 				}
 			}
@@ -633,6 +659,7 @@ class PackageUpdateDispatcher extends SingletonFactory {
 		}
 		
 		// insert compatibility versions
+		// @deprecated 5.2
 		if (!empty($compatibilityInserts)) {
 			$sql = "INSERT INTO     wcf".WCF_N."_package_update_compatibility
 						(packageUpdateVersionID, version)
-- 
2.20.1