Allow configuring the Mixin Provider used (#113)

* make mixinProviderSpec use properties

* update mixinbooter for spec to 10.6

Author: WaitingIdly

build.gradle

@@ -80,6 +80,7 @@ propertyDefaultIfUnset("includeWellKnownRepositories", true)
 propertyDefaultIfUnset("includeCommonDevEnvMods", true)
 propertyDefaultIfUnset("stripForgeRequirements", false)
 propertyDefaultIfUnset("noPublishedSources", false)
+propertyDefaultIfUnset("mixinProviderSpec", "zone.rong:mixinbooter:10.6")
 propertyDefaultIfUnset("forceEnableMixins", false)
 propertyDefaultIfUnset("mixinConfigRefmap", "mixins.${project.modId}.refmap.json")
 propertyDefaultIfUnsetWithEnvVar("enableCoreModDebug", false, "CORE_MOD_DEBUG")
@@ -518,7 +519,6 @@ configurations {
     testRuntimeClasspath.extendsFrom(runtimeOnlyNonPublishable)
 }
 
-String mixinProviderSpec = 'zone.rong:mixinbooter:9.1'
 dependencies {
     if (usesMixins.toBoolean()) {
         annotationProcessor 'org.ow2.asm:asm-debug-all:5.2'
@@ -1009,7 +1009,7 @@ abstract class RunHotswappableMinecraftTask extends RunMinecraftTask {
 
         if (project.usesMixins.toBoolean()) {
             this.extraJvmArgs.addAll(project.provider(() -> {
-                def mixinCfg = project.configurations.detachedConfiguration(project.dependencies.create(project.mixinProviderSpec))
+                def mixinCfg = project.configurations.detachedConfiguration(project.dependencies.create(mixinProviderSpec))
                 mixinCfg.canBeConsumed = false
                 mixinCfg.canBeResolved = true
                 mixinCfg.transitive = false

gradle.properties

@@ -64,6 +64,8 @@ accessTransformersFile =
 
 # Provides setup for Mixins if enabled. If you don't know what mixins are: Keep it disabled!
 usesMixins = false
+# Mixin Provider to use. Primarily changed when needing to use a different version.
+mixinProviderSpec = zone.rong:mixinbooter:10.6
 # Specify the package that contains all of your Mixins. You may only place Mixins in this package or the build will fail!
 mixinsPackage =
 # Location of the mixin config refmap. If left, blank, defaults to "mixins.${modId}.refmap.json". Target file must have the "json" extension.