Re-write reprod to support all versions in one tree

gradle/reprod/init.gradle

@@ -19,53 +19,81 @@ def convertRepoToHttp = { repo ->
     }
 }
 
+def setupDependencySubstitution = { Configuration configuration ->
+    configuration.resolutionStrategy.eachDependency { dep ->
+        def req = dep.requested
+        if (req.group == 'net.minecraftforge.gradle' && req.name == 'ForgeGradle' && req.version == '2.0-SNAPSHOT') {
+            // FG 2.1 works for MC 1.8 as well, as long as only CI builds are performed (fails when applying source patches)
+            dep.useTarget 'net.minecraftforge.gradle:ForgeGradle:2.1-SNAPSHOT'
+        }
+        if (req.group == 'de.oceanlabs.mcp' && req.name == 'mcinjector' && req.version == '3.4-SNAPSHOT') {
+            dep.useTarget 'com.github.ModCoderPack:MCInjector:7258466'
+        }
+        if (req.group == 'net.minecraftforge.srg2source' && req.name == 'Srg2Source') {
+            switch (req.version) {
+                case '3.3-SNAPSHOT':
+                    // Note: 3.3-SNAPSHOT is actually 5f11e29 but that doesn't build due to broken javadoc
+                    dep.useTarget 'com.github.MinecraftForge:Srg2Source:dcad1a6'
+                    break
+                case '4.0-SNAPSHOT':
+                    dep.useTarget 'com.github.MinecraftForge:Srg2Source:ea4ea62'
+                    break
+                default:
+                    throw new IllegalStateException("Don't know how to replace Srg2Source version $req.version")
+            }
+        }
+        if (req.group == 'net.minecraftforge' && req.name == 'fernflower' && req.version == '2.0-SNAPSHOT') {
+            dep.useTarget 'com.github.MinecraftForge:FernFlowerLegacy:114aebe'
+        }
+        /* Could theoretically be built by jitpack but that fails for some reason
+        if (req.group == 'net.minecraftforge' && req.name == 'forgeflower' && req.version == '1.0.342-SNAPSHOT') {
+            dep.useTarget 'com.github.MinecraftForge:ForgeFlower:41d2b9e'
+        }
+        */
+    }
+}
+
 allprojects {
     buildscript {
-       repositories.all convertRepoToHttp
+        def localRepo = rootProject.file('gradle/reprod/deps/repo')
+        if (localRepo.exists()) repositories.maven { url localRepo.getAbsolutePath() }
+        repositories.all convertRepoToHttp
+        configurations.all setupDependencySubstitution
     }
     repositories { mavenCentral() } // for ecj
     repositories.all convertRepoToHttp
     apply plugin: de.johni0702.gradle.ReproducibleBuildsPlugin, to: project
-    apply plugin: xink.gradle.ecj.EcjPlugin, to: project
-    apply plugin: 'maven', to: project
+    afterEvaluate {
+        if (project.plugins.hasPlugin('java')) {
+            apply plugin: xink.gradle.ecj.EcjPlugin, to: project
 
-    ecj {
-        warn = ['none']
+            ecj {
+                warn = ['none']
+            }
+        }
     }
 
+    def localRepo = rootProject.file('gradle/reprod/deps/repo')
+    if (!localRepo.exists()) {
+        localRepo = rootProject.file('../repo') // building deps
+    }
+    localRepo = localRepo.getAbsolutePath()
     repositories {
-        maven {
-            url(project.file('gradle/reprod').exists() ? 'gradle/reprod/deps/repo' : '../repo')
-        }
+        maven { url localRepo }
+        maven { url 'https://jitpack.io' }
     }
-    task createPom {
-        doLast {
-            pom {
-                project {
-                    groupId 'reprod'
-                    artifactId project.file('.').name
-                    version '0'
-                }
-                whenConfigured {
-                    dependencies.removeAll { it.artifactId == 'mixin-asm-debug-all' }
-                }
-            }.writeTo("pom.xml")
-        }
-    }
-    if (!project.file('gradle/reprod').exists()) {
-        build.dependsOn createPom
-    }
-
-    reproducibleBuilds {
-        if (project.file('.').name == 'forgegradle') {
-            project.tasks.all {
-                if (it.name == 'jar') {
-                    println 'Manually repacking archive after jar task'
-                    repackAfter it
+    afterEvaluate {
+        if (project.plugins.hasPlugin('maven')) {
+            uploadArchives {
+                repositories.mavenDeployer {
+                    repository url: 'file://localhost/' + localRepo
                 }
             }
         }
     }
+
+    configurations.all setupDependencySubstitution
+
     project.tasks.all { task ->
         if (task.name == 'reobfJar') {
             task.doLast {