From 4f52838c0556a25b87f15fbd4848c9bf2fb9d13b Mon Sep 17 00:00:00 2001
From: Wagyourtail <wagyourtail@wagyourtail.xyz>
Date: Wed, 31 Jul 2024 20:45:45 -0500
Subject: [PATCH] add multi-release settings to gradle plugin

---
 .../jvmdg/gradle/JVMDowngraderExtension.kt      |  2 ++
 .../jvmdg/gradle/flags/DowngradeFlags.kt        | 17 +++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/gradle-plugin/src/main/kotlin/xyz/wagyourtail/jvmdg/gradle/JVMDowngraderExtension.kt b/gradle-plugin/src/main/kotlin/xyz/wagyourtail/jvmdg/gradle/JVMDowngraderExtension.kt
index b04173c9..9d914d2d 100644
--- a/gradle-plugin/src/main/kotlin/xyz/wagyourtail/jvmdg/gradle/JVMDowngraderExtension.kt
+++ b/gradle-plugin/src/main/kotlin/xyz/wagyourtail/jvmdg/gradle/JVMDowngraderExtension.kt
@@ -71,6 +71,8 @@ abstract class JVMDowngraderExtension @Inject constructor(@get:Internal val proj
         debugSkipStubs.convention(emptySet()).finalizeValueOnRead()
         debugDumpClasses.convention(false).finalizeValueOnRead()
         shadePath.convention { it.substringBefore(".").substringBeforeLast("-").replace(Regex("[.;\\[/]"), "-") + "/" }
+        multiReleaseOriginal.convention(false).finalizeValueOnRead()
+        multiReleaseVersions.convention(emptySet()).finalizeValueOnRead()
     }
 
     fun convention(flags: ShadeFlags) {
diff --git a/gradle-plugin/src/main/kotlin/xyz/wagyourtail/jvmdg/gradle/flags/DowngradeFlags.kt b/gradle-plugin/src/main/kotlin/xyz/wagyourtail/jvmdg/gradle/flags/DowngradeFlags.kt
index 36309c23..dd21e429 100644
--- a/gradle-plugin/src/main/kotlin/xyz/wagyourtail/jvmdg/gradle/flags/DowngradeFlags.kt
+++ b/gradle-plugin/src/main/kotlin/xyz/wagyourtail/jvmdg/gradle/flags/DowngradeFlags.kt
@@ -93,6 +93,21 @@ interface DowngradeFlags : TransformParameters {
     @get:Optional
     val debugDumpClasses: Property<Boolean>
 
+    /**
+     * sets if the original versions of classes should be retained in the output jar as a Multi-Release
+     * @since 1.0.0
+     */
+    @get:Input
+    @get:Optional
+    val multiReleaseOriginal: Property<Boolean>
+
+    /**
+     * sets if semi-downgraded versions of classes should be retained in the output jar as a Multi-Release
+     * @since 1.0.0
+     */
+    @get:Input
+    @get:Optional
+    val multiReleaseVersions: SetProperty<JavaVersion>
 }
 
 fun DowngradeFlags.toFlags(): Flags {
@@ -106,5 +121,7 @@ fun DowngradeFlags.toFlags(): Flags {
     flags.debugSkipStubs = debugSkipStubs.getOrElse(emptySet()).map { it.toOpcode() }.toSet()
     ignoreWarningsIn.getOrElse(emptyList()).forEach { flags.addIgnore(it) }
     flags.debugDumpClasses = debugDumpClasses.getOrElse(false)
+    flags.multiReleaseOriginal = multiReleaseOriginal.getOrElse(false)
+    flags.multiReleaseVersions = multiReleaseVersions.getOrElse(emptySet()).map { it.toOpcode() }.toSet()
     return flags
 }