From 031d4ade2c6459d91c0440daaec60d9af24c74c8 Mon Sep 17 00:00:00 2001
From: Brian Neumann-Fopiano <mypsn1550@gmail.com>
Date: Mon, 7 Sep 2026 23:28:48 -0400
Subject: [PATCH] Wire Iris jar shrink

- Wire the ProGuard shrink pass into the Bukkit artifact with the core, Bukkit plugin and NMS compile classpaths as library jars
- Map the fourteen SlimJar relocations so runtime-downloaded libraries resolve under their relocated names
- Add packaging/shrink.pro keeping the public API, Iris events, platform SPI, VolmLib integration contract and Bukkit event handler lists
- Lower maximumBukkitArtifactBytes to 7,600,000 so verifyBukkitArtifact enforces the same budget as the packaging gate
- Build VolmitSender.name() from the sender name instead of the relocated CommandSender.name() reference, which cannot resolve on Paper 26.2
---
 build.gradle                                  | 22 ++++++++++++++++++-
 .../iris/util/common/plugin/VolmitSender.java |  2 +-
 packaging/shrink.pro                          | 10 +++++++++
 3 files changed, 32 insertions(+), 2 deletions(-)
 create mode 100644 packaging/shrink.pro

diff --git a/build.gradle b/build.gradle
index 453114eb6..a8a1303d2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -84,7 +84,7 @@ String fabricArtifactName = irisArtifactName('Fabric', "${minecraftVersion}+${lo
 String forgeArtifactName = irisArtifactName('Forge', "${minecraftVersion}+${loaderDisplayVersion(forgeVersion)}")
 String neoForgeArtifactName = irisArtifactName('NeoForge', "${minecraftVersion}+${loaderDisplayVersion(neoForgeVersion)}")
 File pluginOutDirectory = layout.projectDirectory.dir('../PluginOuts').asFile
-long maximumBukkitArtifactBytes = 8_000_000L
+long maximumBukkitArtifactBytes = 7_600_000L
 apply plugin: ApiGenerator
 
 // Where `buildAll` drops the per-platform jars for a local test server. Use the approved sibling
@@ -746,6 +746,26 @@ pluginPackaging {
             releaseCompression = providers.gradleProperty('compactRelease').map { it.toBoolean() }.getOrElse(false)
             prunePrefixes = ['art/arcane/volmlib/']
             keepPrefixes = ['art/arcane/volmlib/util/matter/slices/']
+            shrinkRules = [file('packaging/shrink.pro')]
+            shrinkLibraries.from(provider { project(':core').configurations.compileClasspath })
+            shrinkLibraries.from(provider { project(':adapters:bukkit:plugin').configurations.compileClasspath })
+            shrinkLibraries.from(provider { project(':adapters:bukkit:nms:v26_2_R1').configurations.compileClasspath })
+            shrinkRelocations = [
+                'com.dfsek.paralithic': 'art.arcane.iris.util.paralithic',
+                'com.google.gson': 'art.arcane.iris.util.gson',
+                'com.googlecode.concurrentlinkedhashmap': 'art.arcane.iris.util.lru',
+                'io.papermc.lib': 'art.arcane.iris.util.paper',
+                'net.kyori': 'art.arcane.iris.util.kyori',
+                'org.bstats': 'art.arcane.iris.util.metrics',
+                'org.apache.maven': 'art.arcane.iris.util.maven',
+                'org.codehaus.plexus': 'art.arcane.iris.util.plexus',
+                'org.eclipse.sisu': 'art.arcane.iris.util.sisu',
+                'org.eclipse.aether': 'art.arcane.iris.util.aether',
+                'com.google.inject': 'art.arcane.iris.util.guice',
+                'org.dom4j': 'art.arcane.iris.util.dom4j',
+                'org.jaxen': 'art.arcane.iris.util.jaxen',
+                'com.github.benmanes.caffeine': 'art.arcane.iris.util.caffeine'
+            ]
         }
     }
 }
diff --git a/core/src/main/java/art/arcane/iris/util/common/plugin/VolmitSender.java b/core/src/main/java/art/arcane/iris/util/common/plugin/VolmitSender.java
index 6a2678351..3a9b31033 100644
--- a/core/src/main/java/art/arcane/iris/util/common/plugin/VolmitSender.java
+++ b/core/src/main/java/art/arcane/iris/util/common/plugin/VolmitSender.java
@@ -359,7 +359,7 @@ public class VolmitSender implements CommandSender {
     @NotNull
     @Override
     public Component name() {
-        return s.name();
+        return Component.text(getName());
     }
 
     @Override
diff --git a/packaging/shrink.pro b/packaging/shrink.pro
new file mode 100644
index 000000000..5f381fdf8
--- /dev/null
+++ b/packaging/shrink.pro
@@ -0,0 +1,10 @@
+-keep class art.arcane.iris.api.** { *; }
+-keep class art.arcane.iris.core.events.** { *; }
+-keep class art.arcane.iris.spi.** { *; }
+-keep class art.arcane.volmlib.integration.** { *; }
+-keep class * implements art.arcane.volmlib.integration.IntegrationServiceContract { *; }
+-keep class * implements art.arcane.volmlib.integration.ReloadAware { *; }
+-keepclassmembers class * extends org.bukkit.event.Event {
+    public static org.bukkit.event.HandlerList getHandlerList();
+    public org.bukkit.event.HandlerList getHandlers();
+}