Bundle and relocate all the things

This is necessary because FG's patching approach is fairly brittle, so even a
technically non-breaking upgrade to one of its deps (e.g. ASM 6.0 -> 6.1) can
cause it to break.
See ModCoderPack/MCInjector#4 for an example.

build.gradle

@@ -1,3 +1,5 @@
+import com.github.jengelman.gradle.plugins.shadow.tasks.ConfigureShadowRelocation
+
 buildscript {
     repositories {
         maven {
@@ -10,10 +12,14 @@ buildscript {
     }
 }
 
-apply plugin: 'java'
+plugins {
+    id 'java'
+    id 'maven-publish'
+    id 'com.github.johnrengelman.shadow' version '5.2.0'
+}
+
 apply plugin: 'idea'
 apply plugin: 'eclipse'
-apply plugin: 'maven'
 apply plugin: "com.gradle.plugin-publish"
 apply plugin: 'license'
 
@@ -54,12 +60,10 @@ repositories {
 
 configurations {
     deployerJars
-    shade
-    compileOnly.extendsFrom shade
 }
 
 dependencies {
-    compile gradleApi()
+    shadow gradleApi()
 
     compile 'org.ow2.asm:asm:6.0'
     compile 'org.ow2.asm:asm-tree:6.0'
@@ -80,7 +84,7 @@ dependencies {
     compile 'com.github.tony19:named-regexp:0.2.3' // 1.7 Named regexp features
     compile 'net.minecraftforge:forgeflower:1.0.342-SNAPSHOT' // Fernflower Forge edition
 
-    shade('net.md-5:SpecialSource:1.8.2'){
+    compile('net.md-5:SpecialSource:1.8.2'){
         exclude group: 'org.ow2.asm'
     } // deobf and reobf
 
@@ -89,8 +93,8 @@ dependencies {
     compile 'org.apache.httpcomponents:httpmime:4.3.3'
 
     // mcp stuff
-    shade 'de.oceanlabs.mcp:RetroGuard:3.6.6'
-    shade('de.oceanlabs.mcp:mcinjector:3.4-SNAPSHOT'){
+    compile 'de.oceanlabs.mcp:RetroGuard:3.6.6'
+    compile('de.oceanlabs.mcp:mcinjector:3.4-SNAPSHOT'){
         exclude group: 'org.ow2.asm'
     }
     compile('net.minecraftforge.srg2source:Srg2Source:4.0-SNAPSHOT'){
@@ -112,13 +116,6 @@ wrapper {
     gradleVersion = '5.4.1'
 }
 
-sourceSets {
-    main.compileClasspath += configurations.shade;
-    main.runtimeClasspath += configurations.shade;
-    test.compileClasspath += configurations.shade;
-    test.runtimeClasspath += configurations.shade;
-}
-
 compileJava {
 	options.deprecation = true
 	//options.compilerArgs += ["-Werror"]
@@ -136,24 +133,6 @@ processResources {
 }
 
 jar {
-
-    configurations.shade.each { dep ->
-        /* I can use this again to find where dupes come from, so.. gunna just keep it here.
-        logger.lifecycle(dep.toString())
-        project.zipTree(dep).visit { 
-            element -> 
-                def path = element.relativePath.toString()
-                if (path.contains('org/eclipse/core') && path.endsWith('.class'))
-                    println "  $element.relativePath"
-            
-        }
-        */
-        from(project.zipTree(dep)){
-            exclude 'META-INF', 'META-INF/**', '.api_description', '.options', 'about.html', 'module-info.class', 'plugin.properties', 'plugin.xml', 'about_files/**'
-            duplicatesStrategy 'warn'
-        }
-    }
-
     manifest {
         attributes 'version':project.version
         attributes 'javaCompliance': project.targetCompatibility
@@ -238,66 +217,16 @@ pluginBundle {
     }
 }
 
-uploadArchives {
-    repositories.mavenDeployer {
-
-        dependsOn 'build'
-
-        if (project.hasProperty('forgeMavenPass'))
-        {
-            repository(url: "https://files.minecraftforge.net/maven/manage/upload") {
-                authentication(userName: "forge", password: project.getProperty('forgeMavenPass'))
-            }
-        }
-        else
-        {
-            // local repo folder. Might wanna juset use  gradle install   if you wanans end it to maven-local
-            repository(url: 'file://localhost/' + project.file('repo').getAbsolutePath())
-        }
-
+task relocateShadowJar(type: ConfigureShadowRelocation) {
+    target = tasks.shadowJar
+    prefix = "fg_2_3"
+}
+tasks.shadowJar.dependsOn tasks.relocateShadowJar
 
-        pom {
-            groupId = project.group
-            version = project.version
-            artifactId = project.archivesBaseName
-            project {
-                name project.archivesBaseName
-                packaging 'jar'
-                description 'Gradle plugin for Forge'
-                url 'https://github.com/MinecraftForge/ForgeGradle'
-
-                scm {
-                    url 'https://github.com/MinecraftForge/ForgeGradle'
-                    connection 'scm:git:git://github.com/MinecraftForge/ForgeGradle.git'
-                    developerConnection 'scm:git:[email protected]:MinecraftForge/ForgeGradle.git'
-                }
-
-                issueManagement {
-                    system 'github'
-                    url 'https://github.com/MinecraftForge/ForgeGradle/issues'
-                }
-
-                licenses {
-                    license {
-                        name 'Lesser GNU Public License, Version 2.1'
-                        url 'https://www.gnu.org/licenses/lgpl-2.1.html'
-                        distribution 'repo'
-                    }
-                }
-
-                developers {
-                    developer {
-                        id 'AbrarSyed'
-                        name 'Abrar Syed'
-                        roles { role 'developer' }
-                    }
-                    developer {
-                        id 'LexManos'
-                        name 'Lex Manos'
-                        roles { role 'developer' }
-                    }
-                }
-            }
+publishing {
+    publications {
+        shadow(MavenPublication) { publication ->
+            project.shadow.component(publication)
         }
     }
 }