build.gradle

plugins {
    id 'de.undercouch.download'
    id 'uk.jamierocks.propatcher' version '2.0.1' apply false
}

import net.minecraftforge.mcpconfig.tasks.*
import net.minecraftforge.srgutils.MinecraftVersion
import uk.jamierocks.propatcher.task.*

group = 'de.oceanlabs.mcp'

net.minecraftforge.mcpconfig.tasks.Utils.init()

ext {
    MC_1_16_5 = MinecraftVersion.from('1.16.5')
    VERSIONS = subprojects.collect{it.name}.sort{ a,b -> MinecraftVersion.from(a).compareTo(MinecraftVersion.from(b)) } as List
    NULL_OUTPUT = new OutputStream() { public void write(int b){} }
    TIMESTAMP = (new Date()).format('yyyyMMdd.HHmmss')
    PATH_BUILD = file('build').absolutePath
    UPDATING = project.hasProperty('updating') || project.hasProperty('updateing') // I suck at spelling
}

logger.lifecycle('Timestamp: ' + TIMESTAMP)

task downloadVersionManifest(type: Download) {
    src 'https://launchermeta.mojang.com/mc/game/version_manifest_v2.json'
    dest file('build/versions/version_manifest.json')
    useETag 'all'
    onlyIfModified true
    quiet true
}

/* This check is fucked on anything > J8 because modules use a propriatary file format. We'd have to create an extracter 
 * that runs in the external process.. so fuck it.
 
task downloadRuntimeManifest(type: Download) {
    src 'https://launchermeta.mojang.com/v1/products/java-runtime/2ec0cc96c44e5a76b9c8b7c39df7210883d12871/all.json'
    dest file('build/versions/java-runtime-all.json')
    useETag 'all'
    onlyIfModified true
    quiet true
}

task downloadRuntime(type:DownloadRuntime, dependsOn: downloadRuntimeManifest) {
    json = downloadRuntimeManifest.dest
    os = 'windows-x64'
    doFirst {
        downloadRuntimeManifest.dest.json.get('windows-x64').keySet().each{ dest.put(it, file('build/runtimes/' + it)) }
    }
}

task extractRuntimeApi(type: ExtractAPI, dependsOn: downloadRuntime) {
    doFirst {
        downloadRuntimeManifest.dest.json.get('windows-x64').keySet().each {
            roots.put(it, new File(downloadRuntime.dest.get(it), 'files'))
            apis.put(it, new File(downloadRuntime.dest.get(it), 'api.json'))
        }
    }
}
*/

if (project.hasProperty('old_version') && project.hasProperty('new_version')) {
    println('Update Old: ' + project.getProperty('old_version') + ' New: ' + project.getProperty('new_version'))
    apply from: 'update.gradle'
}

subprojects {
    apply plugin: 'java'
    apply plugin: 'de.undercouch.download'
    apply plugin: 'maven-publish'
    
    group = rootProject.group
    version = name

    ext {
        MC_VERSION = MinecraftVersion.from(project.name)
        PATH_CACHED_LIBRARIES = PATH_BUILD + '/libraries/'
        PATH_CACHED_VERSION = PATH_BUILD + '/versions/' + project.version + '/'
        PATH_CACHED_VERSION_DATA = PATH_CACHED_VERSION + 'data/'
        
        PATH_INJECT = file('inject')
        PATH_INJECT_TEMPLATE = new File(PATH_INJECT, 'package-info-template.java')
        PATH_NATIVES = file('projects/natives')

        CONFIG = file('config.json').json
        MERGE_PATCHES = !UPDATING && CONFIG.get('merge_patches', false)
        JAVA_TARGET = CONFIG.get('java_target', 8)
        ENCODING = CONFIG.get('encoding', 'UTF-8')
        FERNFLOWER = Utils.readConfig(CONFIG, 'fernflower', [:]) 
        MERGETOOL = Utils.readConfig(CONFIG, 'merge', [
            version: 'net.minecraftforge:mergetool:1.2.3:fatjar',
            args: ["--client", "{client}", "--server", "{server}", "--ann", "{version}", "--output", "{output}"]
        ])
        INSTALLERTOOL = Utils.readConfig(CONFIG, 'installertool', [
            version: 'net.minecraftforge:installertools:1.4.3:fatjar',
            args: ["--task", "MAPPINGS_CSV", "--srg", "{srg}", "--client", "{client}", "--server", "{server}", "--output", "{output}"]
        ])
        RENAMETOOL = Utils.readConfig(CONFIG, 'rename', [
            version: 'net.minecraftforge.lex:vignette:0.2.0.7',
            args: ['--jar-in', '{input}', '--jar-out', '{output}', '--mapping-format', 'tsrg2', '--mappings', '{mappings}', '--fernflower-meta', '--cfg', '{libraries}']
        ])
        MERGEMAPTOOL = Utils.readConfig(CONFIG, 'mergemap', [
            version: 'net.minecraftforge:installertools:1.2.0:fatjar',
            args: ['--task', 'MERGE_MAPPING', '--left', '{mappings}', '--right', '{official}', '--right-names', 'right,left', '--classes', '--output', '{output}']
        ])
        MCINJECTOR = null
        if (CONFIG.containsKey('mcinjector'))
            MCINJECTOR = Utils.readConfig(CONFIG, 'mcinjector', [:])
        BUNDLE_EXTRACT_JAR = null
        if (CONFIG.containsKey('bundler_extract_jar'))
            BUNDLE_EXTRACT_JAR = Utils.readConfig(CONFIG, 'bundler_extract_jar', [:])
        BUNDLE_EXTRACT_LIBS = null
        if (CONFIG.containsKey('bundler_extract_libs'))
            BUNDLE_EXTRACT_LIBS = Utils.readConfig(CONFIG, 'bundler_extract_libs', [:])
    }

    java.toolchain.languageVersion = JavaLanguageVersion.of(JAVA_TARGET)

    repositories {
        maven {
            name 'forge'
            url 'https://maven.minecraftforge.net/'
        }
    }

    task downloadJson(type: Download, dependsOn: rootProject.downloadVersionManifest) {
        inputs.file rootProject.downloadVersionManifest.dest
        src { downloadVersionManifest.dest.json.versions.find{ it.id == project.name }.url }
        dest file(PATH_CACHED_VERSION + 'version.json')
        useETag 'all'
        onlyIfModified true
        quiet true
    }
    ['client', 'server', 'client_mappings', 'server_mappings'].each { id ->
        def name = 'download' + id.replace('_m', 'M').capitalize()
        task "${name}"(type: Download, dependsOn: downloadJson) {
            inputs.file downloadJson.dest
            src { downloadJson.dest.json.downloads.get(id).url }
            dest file(PATH_CACHED_VERSION + id + (id.contains('_') ? '.txt' : '.jar'))
            useETag 'all'
            onlyIfModified true
            quiet true
        }
    }
    
    task downloadLibraries(type: DownloadLibraries, dependsOn: downloadJson) {
        json = downloadJson.dest
        config = CONFIG
        dest = file(PATH_CACHED_LIBRARIES)
    }
    task downloadFernflower(type: DownloadTool) {
        config FERNFLOWER, PATH_CACHED_LIBRARIES
    }
    task downloadMergeTool(type: DownloadTool) {
        config MERGETOOL, PATH_CACHED_LIBRARIES
    }
    task downloadInstallerTool(type: DownloadTool) {
        config INSTALLERTOOL, PATH_CACHED_LIBRARIES
    }
    task downloadRenameTool(type: DownloadTool) {
        config RENAMETOOL, PATH_CACHED_LIBRARIES
    }
    task downloadAssets(type: DownloadAssets, dependsOn: downloadJson) {
        json = downloadJson.dest
        dest = file(PATH_BUILD + '/assets/')
    }
    if (MCINJECTOR != null) {
        task downloadMCInjector(type: DownloadTool) {
            config MCINJECTOR, PATH_CACHED_LIBRARIES
        }
        task makeEmptyFile(type: SingleFileOutput) {
            dest file(PATH_BUILD + '/empty.txt')
            doLast {
                dest.text = ''
            }
        }
    }
    
    if (BUNDLE_EXTRACT_JAR != null) {
        task downloadBundleExtractorJar(type: DownloadTool) {
            config BUNDLE_EXTRACT_JAR, PATH_CACHED_LIBRARIES
        }
        task downloadBundleExtractorLibs(type: DownloadTool) {
            config BUNDLE_EXTRACT_LIBS, PATH_CACHED_LIBRARIES
        }
        task extractServer(type: ExtractBundleJar, dependsOn: [downloadBundleExtractorJar, downloadBundleExtractorLibs, downloadServer]) {
            config BUNDLE_EXTRACT_JAR, downloadBundleExtractorJar
            input = downloadServer.dest
            dest = file(PATH_CACHED_VERSION + 'server.extracted.jar')
        }
        task extractServerLibraries(type: ExtractBundleLibs, dependsOn: [downloadBundleExtractorJar, downloadBundleExtractorLibs, downloadServer]) {
            config BUNDLE_EXTRACT_LIBS, downloadBundleExtractorLibs
            input = downloadServer.dest
            dest = file(PATH_CACHED_VERSION + 'server_libraries')
        }
    }
    
    task filterClient(type: SplitJar, dependsOn: [downloadClient]) {
        mappings = file('joined.tsrg')
        source = downloadClient.dest
        slim = file(PATH_CACHED_VERSION + 'client.slim.jar')
        extra = file(PATH_CACHED_VERSION + 'client.extra.jar')
    }
    
    task filterServer(type: SplitJar, dependsOn: BUNDLE_EXTRACT_JAR == null ? [downloadServer] : [extractServer]) {
        mappings = file('joined.tsrg')
        source = BUNDLE_EXTRACT_JAR == null ? downloadServer.dest : extractServer.dest
        slim = file(PATH_CACHED_VERSION + 'server.slim.jar')
        extra = file(PATH_CACHED_VERSION + 'server.extra.jar')
    }

    task mergeJars(type: MergeJar, dependsOn: [downloadMergeTool, filterClient, filterServer]) {
        config MERGETOOL, downloadMergeTool
        classpath.from project.files(downloadMergeTool)
        mainClass = 'net.minecraftforge.mergetool.ConsoleMerger'
        client filterClient.slim
        server filterServer.slim
        version project.version
        dest file(PATH_CACHED_VERSION + 'joined.jar')
    }
    
    task makeObfToIntermediate(type: RenameMappings, dependsOn: [downloadClientMappings]) {
        intermediate = file('joined.tsrg')
        if (CONFIG.official)
            official = downloadClientMappings.dest
        dest = file(PATH_CACHED_VERSION + 'obf_to_intermediate.tsrg')
    }

    def sides = [
        client: [Name: 'Client', jsonlibs: true,  extra: 'Client', assets: true,  slim: filterClient, extra: filterClient, bundle: null],
        server: [Name: 'Server', jsonlibs: false, extra: 'Server', assets: false, slim: filterServer, extra: filterServer, bundle: downloadServer],
        joined: [Name: 'Joined', jsonlibs: true,  extra: 'Client', assets: true,  slim: mergeJars,    extra: filterClient, bundle: null]
    ]
    
    sides.each{ s, child ->
        child.libraries = task "fernflowerLibraries${child.Name}"(type: CreateFernflowerLibraries, dependsOn: [downloadLibraries, downloadJson, child.slim] + (BUNDLE_EXTRACT_LIBS == null ? [] : [extractServerLibraries])) {
            meta = downloadJson.dest
            config = CONFIG
            side = s
            root = PATH_CACHED_LIBRARIES
            doFirst {
                if ('server'.equals(s)) {
                    extras += [filterServer.extra]
                    if (BUNDLE_EXTRACT_LIBS != null)
                        extractServerLibraries.dest.eachFileRecurse(groovy.io.FileType.FILES) { file -> extras += [file] }
                }
            }
            dest file(PATH_CACHED_VERSION + s + '.fernflower.libs.txt')
        }
        
        child.rename = task "rename${child.Name}"(type: RemapJar, dependsOn: [downloadRenameTool, child.slim, makeObfToIntermediate, child.libraries]) {
            config RENAMETOOL, downloadRenameTool
            input = 'joined'.equals(s) ? child.slim.dest : child.slim.slim
            mappings = makeObfToIntermediate.dest
            libraries = child.libraries.dest
            dest = file(PATH_CACHED_VERSION + s + '.mapped.jar')
            log = file(PATH_CACHED_VERSION + s + '.mapped.log')
        }
        
        if (MCINJECTOR != null) {
            child.mcinject = task "mcinject${child.Name}"(type: MCInjectTask, dependsOn: [downloadMCInjector, child.rename, makeEmptyFile/*, makeExceptions, fixAccessLevels*/]) {
                config MCINJECTOR, downloadMCInjector
                access makeEmptyFile.dest //fixAccessLevels.dest
                constructors project.file('constructors.txt')
                exceptions makeEmptyFile.dest //makeExceptions.dest
                standardOutput rootProject.NULL_OUTPUT
                log file(PATH_CACHED_VERSION + s + '.mci.log')
                input child.rename.dest
                dest file(PATH_CACHED_VERSION + s + '.mci.jar')
            }
        }
    }
    task renameJars(dependsOn: [renameClient, renameServer, renameJoined]){}

    task extractInheritance(type: ExtractInheritance, dependsOn: [downloadLibraries, mergeJars]) {
        input mergeJars.dest
        inputs.file downloadJson.dest
        dest file(PATH_CACHED_VERSION_DATA + 'inheritance.json')
        doFirst {
            downloadJson.dest.json.libraries.stream().map{ it?.downloads?.artifact?.path }.findAll{ it != null }.each{ library(file(PATH_CACHED_LIBRARIES + it)) }
        }
    }
    task extractInheritanceNamed(type: ExtractInheritance, dependsOn: [renameJoined]) {
        input renameJoined.dest
        inputs.file downloadJson.dest
        dest file(PATH_CACHED_VERSION_DATA + 'inheritance_named.json')
        doFirst {
            downloadJson.dest.json.libraries.stream().map{ it?.downloads?.artifact?.path }.findAll{ it != null }.each{ library(file(PATH_CACHED_LIBRARIES + it)) }
        }
    }

    task dumpOverrides(type: DumpOverrides, dependsOn: [extractInheritance, makeObfToIntermediate]) {
        srg makeObfToIntermediate.dest
        meta extractInheritance.dest
        dest file(PATH_CACHED_VERSION_DATA + 'overrides.txt')
    }
    
    task projectRoot(type: Copy) {
        from rootProject.file('templates/root_settings.gradle')
        into file('projects/')
        rename { 'settings.gradle' }
        expand([version: project.name])
    }

    task extractNatives(type: ExtractNatives, dependsOn: [downloadJson, downloadLibraries]) {
        meta downloadJson.dest
        cache file(PATH_CACHED_LIBRARIES)
        dest file(PATH_NATIVES)
    }
    
    task verify(type: VerifyMappings, dependsOn: [mergeJars, makeObfToIntermediate]) {
        mappings = makeObfToIntermediate.dest
        joined = mergeJars.dest
        o2s2idMappings = file('joined.tsrg')
    }

    task decompileAll
    task projectAll
    task projectDeleteAll
    task projectResetAll
    task projectApplyAll
    task projectMakeAll
    
    task testDecompile
    task testCompile
    //task testApi
    task testJdks(dependsOn:[testDecompile, testCompile/*, testApi*/])
    
    sides.each{ side, child ->
        // Normal workflow tasks
        child.decompile = task "decompile${child.Name}"(type: FernflowerTask, dependsOn: [/*verify,*/ downloadFernflower, child.rename, child.libraries] + (MCINJECTOR == null ? [] : [child.mcinject])) {
            config FERNFLOWER, downloadFernflower
            libraries = child.libraries.dest
            input = MCINJECTOR != null ? child.mcinject.dest : child.rename.dest
            log = file(PATH_CACHED_VERSION + side + '.decompile.log')
            dest = file(PATH_CACHED_VERSION + side + '.decompile.jar')
            
        }
        decompileAll.dependsOn(child.decompile)
        
        child.pkgs = task "create${child.Name}PackageInfos"(type: MakePackageInfos, dependsOn: child.decompile) {
            input = child.decompile.dest
            template = PATH_INJECT_TEMPLATE.exists() ? PATH_INJECT_TEMPLATE : null
            dest = file(PATH_CACHED_VERSION + side + '.pkgs.jar')
        }
    }
    
    if (MERGE_PATCHES) {
        task deduplicateSources(type: DeduplicateJars, dependsOn: [sides.client.decompile, sides.server.decompile, sides.joined.decompile]) {
            clientIn = sides.client.decompile.dest
            serverIn = sides.server.decompile.dest
            joinedIn = sides.joined.decompile.dest
            duplicates = file(PATH_CACHED_VERSION + 'source.duplicates.jar')
            sides.client.slimsrc = clientOut = file(PATH_CACHED_VERSION + 'client.decompile.slim.jar')
            sides.server.slimsrc = serverOut = file(PATH_CACHED_VERSION + 'server.decompile.slim.jar')
            sides.joined.slimsrc = joinedOut = file(PATH_CACHED_VERSION + 'joined.decompile.slim.jar')
        }
        
        task projectSharedMakeDir() {
            doLast {
                mkdir projectSharedReset.target
            }
        }
        task projectSharedMakePatchesDir() {
            doLast {
                mkdir projectSharedApplyPatches.patches
            }
        }
        
        task projectSharedReset(type: ResetSourcesTask, dependsOn: [deduplicateSources, projectSharedMakeDir]) {
            rootZip deduplicateSources.duplicates
            target project.file('projects/shared')
        }
        task projectSharedApplyPatches(type: ApplyPatchesTask, dependsOn: [projectSharedReset, projectSharedMakePatchesDir]) {
            target projectSharedReset.target
            patches project.file('patches/shared')
        }
        task projectSharedMakePatches(type: MakePatchesTask, dependsOn: deduplicateSources) {
            rootZip deduplicateSources.duplicates
            target projectSharedApplyPatches.target
            patches projectSharedApplyPatches.patches
        }
        task renameSourcesShared(type: RenameSources, dependsOn: [projectSharedApplyPatches, makeObfToIntermediate, downloadClientMappings]) {
            input = projectSharedApplyPatches.target
            srg = makeObfToIntermediate.dest
            official = downloadClientMappings.dest
            dest = project.file(PATH_CACHED_VERSION + "test/official/shared/src/")
        }
    }

    sides.each{ side, child ->
        def project_dir = project.file("projects/${side}")
        def patches_dir = project.file("patches/${side}")
        
        child.delete = task "project${child.Name}Delete"(type: Delete) {
            delete project_dir
        }
        projectDeleteAll.dependsOn(child.delete)
        
        child.project = task "project${child.Name}"(type: CreateProjectTemplate, dependsOn: [projectRoot, child.extra, child.decompile, child.pkgs] +
                (child.jsonlibs ? [downloadJson, extractNatives] : []) +
                (child.assets ? [downloadAssets] : []) +
                (child.bundle != null ? [child.bundle] : [])
        ) {
            mustRunAfter child.delete
            dest project_dir
            distro side
            template rootProject.file('templates/build.gradle')
            if (child.jsonlibs)
                meta downloadJson.dest
            if (child.bundle != null)
                bundle = child.bundle.dest
            CONFIG?.libraries?.get(side)?.each { library "'${it}'" }
            libraryFile child.extra.extra
            replace '{java_target}', JAVA_TARGET + ''
            replaceFile '{inject}', PATH_INJECT
            replaceFile '{assets}', child.assets ? downloadAssets.dest : null
            replaceFile '{natives}', child.jsonlibs ? extractNatives.dest : null
            replaceFile '{merged_src}', MERGE_PATCHES ? projectSharedReset.target : null
        }
        projectAll.dependsOn(child.project)

        child.makePkgsDir = task "project${child.Name}MakePkgsDir"() {
            doLast {
                mkdir child.resetPkgs.target
            }
        }
        child.resetPkgs = task "project${child.Name}ResetPackages"(type: ResetSourcesTask, dependsOn: [child.makePkgsDir, child.pkgs]) {
            mustRunAfter child.project
            rootZip child.pkgs.dest
            target new File(project_dir, 'src/pkginfo/java')
        }
        child.makeSrcDir = task "project${child.Name}MakeSrcDir"() {
            doLast {
                mkdir child.reset.target
            }
        }
        child.reset = task "project${child.Name}Reset"(type: ResetSourcesTask, dependsOn: [child.resetPkgs, child.makeSrcDir, child.project, child.decompile] + (MERGE_PATCHES ? [projectSharedReset] : [])) {
            mustRunAfter child.project
            rootZip MERGE_PATCHES ? child.slimsrc : child.decompile.dest
            target new File(project_dir, 'src/main/java')
        }
        projectResetAll.dependsOn(child.reset)
        
        child.makePatchesDir = task "project${child.Name}MakePatchesDir"() {
            doLast {
                mkdir patches_dir
            }
        }
        child.apply = task "project${child.Name}ApplyPatches"(type: ApplyPatchesTask, dependsOn: [child.reset, child.makePatchesDir] + (MERGE_PATCHES ? [projectSharedApplyPatches] : [])) {
            target new File(project_dir, 'src/main/java')
            patches patches_dir
        }
        projectApplyAll.dependsOn(child.apply)

        child.makePatches = task "project${child.Name}MakePatches"(type: MakePatchesTask, dependsOn: MERGE_PATCHES ? [deduplicateSources, projectSharedMakePatches] : [child.decompile]) {
            rootZip MERGE_PATCHES ? child.slimsrc : child.decompile.dest
            target new File(project_dir, 'src/main/java')
            patches patches_dir
        }
        projectMakeAll.dependsOn child.makePatches
        
        child.renameSources = task "renameSources${child.Name}"(type: RenameSources, dependsOn: [child.apply, makeObfToIntermediate, downloadClientMappings] + (MERGE_PATCHES ? [renameSourcesShared] : [])) {
            input = new File(project_dir, 'src/main/java')
            srg = makeObfToIntermediate.dest
            official = downloadClientMappings.dest
            dest = project.file(PATH_CACHED_VERSION + "test/official/${side}/src/")
        }
        
        // Tests
        def testDecompileSide = task("testDecompile${child.Name}")
        testDecompile.dependsOn(testDecompileSide)
        def testCompileSide = task("testCompile${child.Name}")
        testCompile.dependsOn(testCompileSide)
        /*
        def testApiSide = task("testApi${child.Name}")
        testApi.dependsOn(testApiSide)
        */
        
        def jdks = [
            [name: 'hotspot8',   Name: 'HotSpot8',   version: 8,  official: false],
            [name: 'hotspot11',  Name: 'HotSpot11',  version: 11, official: false],
            [name: 'hotspot15',  Name: 'HotSpot15',  version: 15, official: false],
            [name: 'hotspot16',  Name: 'HotSpot16',  version: 16, official: false],
            [name: 'hotspot17',  Name: 'HotSpot17',  version: 17, official: false],
            [name: 'hotspot18',  Name: 'HotSpot18',  version: 18, official: false],
            [name: 'hotspot19',  Name: 'HotSpot19',  version: 19, official: false],
            [name: 'hotspot20',  Name: 'HotSpot20',  version: 20, official: false],
            [name: 'hotspot21',  Name: 'HotSpot21',  version: 21, official: false],
            [name: 'hotspot22',  Name: 'HotSpot22',  version: 22, official: false],
            [name: 'official8',  Name: 'Official8',  version: 8,  official: true ],
            [name: 'official16', Name: 'Official16', version: 16, official: true ],
            [name: 'official17', Name: 'Official17', version: 17, official: true ],
            [name: 'official18', Name: 'Official18', version: 18, official: true ],
            [name: 'official19', Name: 'Official19', version: 19, official: true ],
            [name: 'official20', Name: 'Official20', version: 20, official: true ],
            [name: 'official21', Name: 'Official21', version: 21, official: true ],
            [name: 'official22', Name: 'Official22', version: 22, official: true ]
        ]
        jdks.findAll{ it.version >= JAVA_TARGET }.each{ jdk ->
            def testPath = project.file(PATH_CACHED_VERSION + 'test/' + jdk.name + '/')
            
            def tstDecompile = task "testDecompile${child.Name}${jdk.Name}"(type: FernflowerTask, dependsOn: [downloadFernflower, child.rename, child.libraries]) {
                config FERNFLOWER, downloadFernflower
                javaLauncher = javaToolchains.launcherFor {
                    languageVersion = JavaLanguageVersion.of(jdk.version)
                }
                libraries = child.libraries.dest
                input = child.rename.dest
                log = new File(testPath, side + '.decompile.log')
                dest = new File(testPath, side + '.decompile.jar')
                
            }
            def tstDecompileCheck = task "testDecompile${child.Name}${jdk.Name}Compare"(type: CompareJars, dependsOn: [tstDecompile, child.decompile]) {
                expected = child.decompile.dest
                actual = tstDecompile.dest
            }
            testDecompileSide.dependsOn(tstDecompileCheck)
            
            def tstCompileClean = task "testCompile${child.Name}${jdk.Name}Clean"(type: Delete) {
                delete new File(testPath, 'classes')
            }
            
            def sourceDir = jdk.official ? child.renameSources.dest : child.renameSources.input
            def sharedDir = MERGE_PATCHES ? (jdk.official ? renameSourcesShared.dest : renameSourcesShared.input) : null
            
            def tstCompile = task "testCompile${child.Name}${jdk.Name}"(type: JavaCompile, dependsOn: [child.apply, tstCompileClean] + (jdk.official ? [child.renameSources] : [])) {
                javaCompiler = javaToolchains.compilerFor {
                    languageVersion = JavaLanguageVersion.of(jdk.version)
                }
                source = project.files(sourceDir)
                if (sharedDir != null)
                    source += project.files(sharedDir)
                destinationDirectory = new File(testPath, 'classes')
                options.warnings = false
                options.encoding = ENCODING
                sourceCompatibility = targetCompatibility = JAVA_TARGET <= 8 ? '1.' + JAVA_TARGET : JAVA_TARGET.toString()
                // JavaCompile task type requires classpath to be specified before the task begins execution
                // but the data isn't generated yet, so instead - inject the classpath as the first thing done when it begins
                classpath = files()
                getOptions().setFork(true)
                doFirst {
                    classpath = files(java.nio.file.Files.readAllLines(child.libraries.dest.toPath()).collect { file(it.substring(3)) }) // skip "-e="
                }
            }
            testCompileSide.dependsOn(tstCompile)
            
            /*
            def tstApi = task "testApi${child.Name}${jdk.Name}"(type: CheckAPI, dependsOn: [tstCompile, rootProject.extractRuntimeApi]) {
                input = tstCompile.destinationDir
                //apis.add(rootProject.extractRuntimeApi.dest)
                dest new File(testPath, 'api_errors.json')
            }
            testApiSide.dependsOn(tstApi)
            */
        }
    }

    task generateConfiguration(type: SingleFileOutput) {
        inputs.property('config', CONFIG)
        dest file(PATH_CACHED_VERSION_DATA + 'config.json')

        doLast {
            def json = new groovy.json.JsonBuilder()
            
            if (CONFIG.official) {
                def steps_def = [
                    joined: [
                        [type: 'downloadManifest'],
                        [type: 'downloadJson'],
                        [type: 'downloadClient'],
                        [type: 'downloadServer'],
                        [type: 'downloadClientMappings'],
                        [type: 'mergeMappings', official: '{downloadClientMappingsOutput}'],
                        [type: 'strip', name: 'stripClient', input: '{downloadClientOutput}'],
                        [type: 'strip', name: 'stripServer', input: '{downloadServerOutput}'],
                        [type: 'merge', client: '{stripClientOutput}', server: '{stripServerOutput}', version: project.version],
                        [type: 'listLibraries'],
                        [type: 'rename', input: '{mergeOutput}', libraries: '{listLibrariesOutput}', mappings: '{mergeMappingsOutput}'],
                        [type: 'decompile', libraries: '{listLibrariesOutput}', input: '{renameOutput}'],
                        [type: 'inject', input: '{decompileOutput}'],
                        [type: 'patch', input: '{injectOutput}']
                    ],
                    client: [
                        [type: 'downloadManifest'],
                        [type: 'downloadJson'],
                        [type: 'downloadClient'],
                        [type: 'downloadClientMappings'],
                        [type: 'mergeMappings', official: '{downloadClientMappingsOutput}'],
                        [type: 'strip', input: '{downloadClientOutput}'],
                        [type: 'listLibraries'],
                        [type: 'rename', input: '{stripOutput}', libraries: '{listLibrariesOutput}', mappings: '{mergeMappingsOutput}'],
                        [type: 'decompile', libraries: '{listLibrariesOutput}', input: '{renameOutput}'],
                        [type: 'inject', input: '{decompileOutput}'],
                        [type: 'patch', input: '{injectOutput}']
                    ],
                    server: [
                        [type: 'downloadManifest'],
                        [type: 'downloadJson'],
                        [type: 'downloadServer'],
                        [type: 'downloadClientMappings'],
                        [type: 'mergeMappings', official: '{downloadClientMappingsOutput}'],
                        [type: 'strip', input: '{downloadServerOutput}'],
                        [type: 'listLibraries'],
                        [type: 'rename', input: '{stripOutput}', libraries: '{listLibrariesOutput}', mappings: '{mergeMappingsOutput}'],
                        [type: 'decompile', libraries: '{listLibrariesOutput}', input: '{renameOutput}'],
                        [type: 'inject', input: '{decompileOutput}'],
                        [type: 'patch', input: '{injectOutput}']
                    ]
                ]
                def functions_def = [
                    decompile: FERNFLOWER.findAll {it.key != 'path'},
                    merge:     MERGETOOL .findAll {it.key != 'path'},
                    rename:    RENAMETOOL.findAll {it.key != 'path'},
                    mergeMappings: MERGEMAPTOOL.findAll {it.key != 'path'}
                ]
                def specVer = 2
                
                if (BUNDLE_EXTRACT_JAR != null) {
                    specVer = 3 // Spec v3 adds 'bundle' to the listLibraries task. 
                    functions_def['bundleExtractJar'] = BUNDLE_EXTRACT_JAR.findAll {it.key != 'path'}
                    steps_def['joined'].add(4, [name: 'extractServer', type: 'bundleExtractJar', input: '{downloadServerOutput}'])
                    steps_def['joined'].find{'stripServer'.equals(it.name) }['input'] = '{extractServerOutput}'
                    
                    steps_def['server'].add(3, [name: 'extractServer', type: 'bundleExtractJar', input: '{downloadServerOutput}'])
                    steps_def['server'].find{'strip'.equals(it.type) }['input'] = '{extractServerOutput}'
                    steps_def['server'].find{'listLibraries'.equals(it.type) }['bundle'] = '{downloadServerOutput}'
                }

                if (functions_def.values().any { it.java_version != null }) {
                    specVer = 4 // Spec v4 adds the ability to set a java version to run a tool with
                }
                
                json {
                    spec specVer
                    version project.version
                    official CONFIG.official
                    java_target JAVA_TARGET
                    encoding ENCODING
                    data {
                        mappings 'config/joined.tsrg'
                        inject 'config/inject/'
                        patches {
                            client 'patches/client/'
                            joined 'patches/joined/'
                            server 'patches/server/'
                        }
                    }
                    steps steps_def
                    functions functions_def
                    libraries CONFIG.libraries
                }
            } else {
                def steps_def = [
                    joined: [
                        [type: 'downloadManifest'],
                        [type: 'downloadJson'],
                        [type: 'downloadClient'],
                        [type: 'downloadServer'],
                        [type: 'strip', name: 'stripClient', input: '{downloadClientOutput}'],
                        [type: 'strip', name: 'stripServer', input: '{downloadServerOutput}'],
                        [type: 'merge', client: '{stripClientOutput}', server: '{stripServerOutput}', version: project.version],
                        [type: 'rename', input: '{mergeOutput}'],
                        [type: 'mcinject', input: '{renameOutput}'],
                        [type: 'listLibraries'],
                        [type: 'decompile', libraries: '{listLibrariesOutput}', input: '{mcinjectOutput}'],
                        [type: 'inject', input: '{decompileOutput}'],
                        [type: 'patch', input: '{injectOutput}']
                    ],
                    client: [
                        [type: 'downloadManifest'],
                        [type: 'downloadJson'],
                        [type: 'downloadClient'],
                        [type: 'strip', input: '{downloadClientOutput}'],
                        [type: 'rename', input: '{stripOutput}'],
                        [type: 'mcinject', input: '{renameOutput}'],
                        [type: 'listLibraries'],
                        [type: 'decompile', libraries: '{listLibrariesOutput}', input: '{mcinjectOutput}'],
                        [type: 'inject', input: '{decompileOutput}'],
                        [type: 'patch', input: '{injectOutput}']
                    ],
                    server: [
                        [type: 'downloadManifest'],
                        [type: 'downloadJson'],
                        [type: 'downloadServer'],
                        [type: 'strip', input: '{downloadServerOutput}'],
                        [type: 'rename', input: '{stripOutput}'],
                        [type: 'mcinject', input: '{renameOutput}'],
                        [type: 'listLibraries'],
                        [type: 'decompile', libraries: '{listLibrariesOutput}', input: '{mcinjectOutput}'],
                        [type: 'inject', input: '{decompileOutput}'],
                        [type: 'patch', input: '{injectOutput}']
                    ]
                ]
                json {
                    spec 1
                    version project.version
                    data {
                        access 'config/access.txt'
                        constructors 'config/constructors.txt'
                        exceptions 'config/exceptions.txt'
                        mappings 'config/joined.tsrg'
                        inject 'config/inject/'
                        statics 'config/static_methods.txt'
                        patches {
                            client 'patches/client/'
                            joined 'patches/joined/'
                            server 'patches/server/'
                        }
                    }
                    steps steps_def
                    functions {
                        decompile CONFIG.fernflower
                        mcinject CONFIG.mcinjector
                        merge CONFIG.merge
                        rename CONFIG.rename
                    }
                    libraries CONFIG.libraries
                }
            }
            dest.text = groovy.json.JsonOutput.prettyPrint(json.toString())
        }
    }

    task makeZip(type: Zip, dependsOn: [generateConfiguration]) {
        archiveBaseName = rootProject.name
        archiveVersion = project.version
        destinationDirectory = file(PATH_BUILD + '/distributions')

        from generateConfiguration
        from(file('joined.tsrg')){ into 'config/' }

        def patches = file('patches')
        if (patches.exists()) {
            def shared = file('patches/shared')
            if (MERGE_PATCHES && shared.exists()) {
                for (def side : ['client', 'server', 'joined']) {
                    from(file('patches/' + side)) {
                        into 'patches/' + side
                    }
                    from(shared) {
                        into 'patches/' + side
                    }
                }
            } else {                
                from(patches) {
                    into 'patches/'
                }
            }
        }

        if (PATH_INJECT != null && PATH_INJECT.exists()) {
            from(PATH_INJECT) {
                into 'config/inject/'
            }
        }
    }
    
    task makeMappingsCsv(type: MakeMappingsCsv, dependsOn: [downloadInstallerTool, downloadClientMappings, downloadServerMappings]) {
        config INSTALLERTOOL, downloadInstallerTool
        classpath.from project.files(downloadInstallerTool)
        mainClass = 'net.minecraftforge.installertools.ConsoleTool'
        srg file('joined.tsrg')
        client downloadClientMappings.dest
        server downloadServerMappings.dest
        dest file(PATH_CACHED_VERSION + 'mappings.jar')
    }
    
    task mappingsCsv(type: Jar, dependsOn: [makeMappingsCsv]) {
        archiveBaseName = rootProject.name
        archiveVersion = project.version
        destinationDirectory = file(PATH_BUILD + '/distributions')
        archiveClassifier = 'srg2off'
        from zipTree(makeMappingsCsv.dest)
    }
    

    publishing {
        publications {
            if (!rootProject.hasProperty('timed_only') && (MC_VERSION.compareTo(MC_1_16_5) > 0 || !CONFIG.official)) {
                normal(MavenPublication) {
                    artifactId rootProject.name
                    artifact makeZip
                    artifact mappingsCsv
                    pom {
                        name = 'MCPConfig'
                        description = 'Configuration files used for deobfuscating and modding Minecraft.'
                        url = 'https://github.com/MinecraftForge/MCPConfig'
                        scm {
                            url = 'https://github.com/MinecraftForge/MCPConfig'
                            connection = 'scm:git:git://github.com/MinecraftForge/MCPConfig.git'
                            developerConnection = 'scm:git:git@github.com:MinecraftForge/MCPConfig.git'
                        }
                        issueManagement {
                            system = 'github'
                            url = 'https://github.com/MinecraftForge/MCPConfig/issues'
                        }

                        licenses {
                            license {
                                name = 'All Rights Reserved, No redistribution.'
                                url = ''
                            }
                        }
                    }
                }
            }
            timed(MavenPublication) {
                artifactId rootProject.name
                version project.version + '-' + rootProject.TIMESTAMP
                artifact makeZip
                artifact mappingsCsv
                pom {
                    name = 'MCPConfig'
                    description = 'Configuration files used for deobfuscating and modding Minecraft.'
                    url = 'https://github.com/MinecraftForge/MCPConfig'
                    scm {
                        url = 'https://github.com/MinecraftForge/MCPConfig'
                        connection = 'scm:git:git://github.com/MinecraftForge/MCPConfig.git'
                        developerConnection = 'scm:git:git@github.com:MinecraftForge/MCPConfig.git'
                    }
                    issueManagement {
                        system = 'github'
                        url = 'https://github.com/MinecraftForge/MCPConfig/issues'
                    }

                    licenses {
                        license {
                            name = 'All Rights Reserved, No redistribution.'
                            url = ''
                        }
                    }
                }
            }
        }
        repositories {
            maven {
                if (rootProject.hasProperty('MAVEN_USER') && rootProject.hasProperty('MAVEN_PASSWORD') && rootProject.hasProperty('MAVEN_URL')) {
                    url rootProject.getProperty('MAVEN_URL')
                    authentication {
                        basic(BasicAuthentication)
                    }
                    credentials {
                        username = rootProject.getProperty('MAVEN_USER') ?: 'not'
                        password = rootProject.getProperty('MAVEN_PASSWORD') ?: 'set'
                    }
                } else {
                    url 'file://' + rootProject.file('repo').getAbsolutePath()
                }
            }
        }
    }
}

def getVersionIndex(prop, default_) {
    if (!project.hasProperty(prop))
        return default_
    if (!VERSIONS.contains(project.getProperty(prop)))
        throw new IllegalArgumentException('Unknown version in ' + prop + ': ' + project.getProperty(prop) + ' Known: ' + VERSIONS.toString())
    return VERSIONS.indexOf(project.getProperty(prop))
}

def template = project(':' + VERSIONS[0])
def start = getVersionIndex('startVersion', 0)
def end = getVersionIndex('endVersion', VERSIONS.size - 1)

if (start > end)
    throw new IllegalArgumentException('Invalid start and end range: ' + VERSIONS[start] + ' > ' + VERSIONS[end])

template.tasks.each{t ->
    def myTask = project.tasks.findByName(t.name) ?: project.tasks.create(t.name)
    for (int x = start; x <= end; x++) {
        def task = project(VERSIONS[x]).tasks.findByName(t.name)
        if (task != null)
            myTask.dependsOn task
    }
}