buildscript {
    repositories {
        mavenLocal()
        maven { url = 'https://files.minecraftforge.net/maven' }
        jcenter()
        mavenCentral()
    }
    dependencies {
        classpath 'net.minecraftforge.gradle:ForgeGradle:3.+'
        classpath 'org.ow2.asm:asm:7.1'
    }
}
import groovy.json.JsonSlurper
import groovy.json.JsonBuilder
import java.text.SimpleDateFormat
import java.util.Date
import java.util.LinkedHashMap
import java.security.MessageDigest
import java.net.URL
import net.minecraftforge.gradle.common.task.ArchiveChecksum
import net.minecraftforge.gradle.common.task.DownloadMavenArtifact
import net.minecraftforge.gradle.common.task.SignJar
import net.minecraftforge.gradle.patcher.task.ApplyBinPatches
import net.minecraftforge.gradle.patcher.task.TaskReobfuscateJar
import net.minecraftforge.gradle.userdev.tasks.RenameJar
import org.apache.tools.ant.filters.ReplaceTokens
import de.undercouch.gradle.tasks.download.Download
import org.gradle.plugins.ide.eclipse.model.SourceFolder
import org.objectweb.asm.ClassReader

import java.util.stream.Collectors

plugins {
    id 'net.minecrell.licenser' version '0.4'
    id 'org.ajoberstar.grgit' version '2.3.0'
    id 'de.undercouch.download' version '3.3.0'
    id 'com.github.ben-manes.versions' version '0.20.0'
}
apply plugin: 'eclipse'

ext {
    JAR_SIGNER = null
    if (project.hasProperty('keystore')) {
        JAR_SIGNER = [
            storepass: project.properties.keystoreStorePass,
            keypass: project.properties.keystoreKeyPass,
            keystore: project.properties.keystore
        ]
    }
    MAPPING_CHANNEL = 'snapshot'
    MAPPING_VERSION = '20190719-1.14.3'
    MC_VERSION = '1.14.4'
    MCP_VERSION = '20190719.173545'
}

project(':mcp') {
    apply plugin: 'net.minecraftforge.gradle.mcp'
    mcp {
        config = MC_VERSION + '-' + MCP_VERSION
        pipeline = 'joined'
    }
}

project(':clean') {
    evaluationDependsOn(':mcp')
    apply plugin: 'eclipse'
    apply plugin: 'net.minecraftforge.gradle.patcher'
    compileJava.sourceCompatibility = compileJava.targetCompatibility = sourceCompatibility = targetCompatibility = '1.8' // Need this here so eclipse task generates correctly.
    
    repositories {
        mavenCentral()
    }
    
    dependencies {
        implementation 'net.minecraftforge:forgespi:0.13.+'
    }
    patcher {
        parent = project(':mcp')
        mcVersion = MC_VERSION
        patchedSrc = file('src/main/java')

        mappings channel: MAPPING_CHANNEL, version: MAPPING_VERSION

        runs {
            clean_client {
                taskName 'clean_client'

                main 'net.minecraft.client.main.Main'
                workingDirectory project.file('run')

                args '--gameDir', '.'
                args '--version', MC_VERSION
                args '--assetsDir', downloadAssets.output
                args '--assetIndex', '{asset_index}'
                args '--accessToken', '0'
            }

            clean_server {
                taskName 'clean_server'

                main 'net.minecraft.server.MinecraftServer'
                workingDirectory project.file('run')
            }
        }
    }
}

project(':forge') {    
    evaluationDependsOn(':clean')
    apply plugin: 'java-library'
    apply plugin: 'maven-publish'
    apply plugin: 'eclipse'
    apply plugin: 'net.minecraftforge.gradle.patcher'
    apply plugin: 'net.minecrell.licenser'
    apply plugin: 'de.undercouch.download'
    
    compileJava.sourceCompatibility = compileJava.targetCompatibility = sourceCompatibility = targetCompatibility = '1.8' // Need this here so eclipse task generates correctly.
    group = 'net.minecraftforge'

    sourceSets {
        fmllauncher {
            java {
                srcDirs = ["$rootDir/src/fmllauncher/java"]
            }
            resources {
                srcDirs = ["$rootDir/src/fmllauncher/resources"]
            }
        }
        main {
            compileClasspath += sourceSets.fmllauncher.runtimeClasspath
            runtimeClasspath += sourceSets.fmllauncher.runtimeClasspath
            java {
                srcDirs = ["$rootDir/src/main/java"]
            }
            resources {
                srcDirs = [
                    "$rootDir/src/main/resources",
                    "$rootDir/src/generated/resources"
                ]
            }
        }
        test {
            compileClasspath += sourceSets.fmllauncher.runtimeClasspath
            runtimeClasspath += sourceSets.fmllauncher.runtimeClasspath
            java {
                srcDirs = [
                    "$rootDir/src/test/java", 
                    "$rootDir/src/fmllaunchertest/java"
                ]
            }
            resources {
                srcDirs = ["$rootDir/src/test/resources"]
            }
        }
        userdev {
            compileClasspath += sourceSets.main.runtimeClasspath
            runtimeClasspath += sourceSets.main.runtimeClasspath
            java {
                srcDirs = ["$rootDir/src/userdev/java"]
            }
            resources {
                srcDirs = ["$rootDir/src/userdev/resources"]
            }
        }
    }
    //Eclipse adds the sourcesets twice, once where we tell it to, once in the projects folder. No idea why. So delete them
    eclipse.classpath.file.whenMerged { cls -> cls.entries.removeIf { e -> e instanceof SourceFolder && e.path.startsWith('src/') && !e.path.startsWith('src/main/') } }

    repositories {
        mavenLocal()
        mavenCentral()
    }

    ext {
        SPEC_VERSION = '28.0' // This is overwritten by git tag, but here so dev time doesnt explode
        // The new versioning sceme is <MCVersion>-<ForgeMC>.<RB>.<CommitsSinceRB>
        // ForgeMC is a unique identifier for every MC version we have supported.
        // Essentially, the same as the old, except dropping the first number, and the builds are no longer unique.
        MCP_ARTIFACT = project(':mcp').mcp.config
        SPECIAL_SOURCE = 'net.md-5:SpecialSource:1.8.5'
    }

    def getVersion = {
        //TAG-offset-hash
        def raw = grgit.describe(longDescr: true)
        def desc = (raw == null ? '0.0-0-unknown' : grgit.describe(longDescr: true)).split('-') as List
        def hash = desc.remove(desc.size() - 1)
        def offset = desc.remove(desc.size() - 1)
        def tag = desc.join('-')
        def branch = grgit.branch.current().name
        if (branch in ['master', 'HEAD', MC_VERSION, MC_VERSION + '.0'])
            branch = null
        if (branch != null && branch.endsWith('.x') && MC_VERSION.startsWith(branch.substring(0, branch.length() - 2))) //1.13.x
            branch = null
        SPEC_VERSION = tag
        return "${MC_VERSION}-${tag}.${offset}${t -> if (branch != null) t << '-' + branch}".toString() //Bake the response instead of making it dynamic
    }

    version = getVersion()

    patcher {
        exc = file("$rootDir/src/main/resources/forge.exc")
        parent = project(':clean')
        patches = file("$rootDir/patches/minecraft")
        patchedSrc = file('src/main/java')
        srgPatches = true
        accessTransformer = file("$rootDir/src/main/resources/META-INF/accesstransformer.cfg")

        runs {
            forge_client {
                taskName 'forge_client'

                main 'net.minecraftforge.userdev.LaunchTesting'
                workingDirectory project.file('run')

                environment 'target', 'fmldevclient'
                environment 'assetIndex', '{asset_index}'
                environment 'assetDirectory', downloadAssets.output
                environment 'nativesDirectory', extractNatives.output

                environment 'MC_VERSION', MC_VERSION
                environment 'MCP_VERSION', MCP_VERSION
                environment 'FORGE_GROUP', project.group
                environment 'FORGE_SPEC', SPEC_VERSION
                environment 'FORGE_VERSION', project.version.substring(MC_VERSION.length() + 1).toString()
                environment 'LAUNCHER_VERSION', SPEC_VERSION
                property 'terminal.ansi', 'true'
                property 'org.lwjgl.system.SharedLibraryExtractDirectory', 'lwjgl_dll'

                ideaModule "${rootProject.name}.${project.name}.userdev"

                source sourceSets.main
                source sourceSets.userdev
            }

            forge_test_client {
                parent runs.forge_client
                taskName 'forge_test_client'

                environment 'MOD_CLASSES', 'dummy' // Needed to work around FG limitation, FG will replace this!

                mods {
                    TestMods { sources sourceSets.test }
                }
            }

            forge_server {
                taskName 'forge_server'

                main 'net.minecraftforge.userdev.LaunchTesting'
                workingDirectory project.file('run')

                environment 'target', 'fmldevserver'

                environment 'MC_VERSION', MC_VERSION
                environment 'MCP_VERSION', MCP_VERSION
                environment 'FORGE_GROUP', project.group
                environment 'FORGE_SPEC', SPEC_VERSION
                environment 'FORGE_VERSION', project.version.substring(MC_VERSION.length() + 1).toString()
                environment 'LAUNCHER_VERSION', SPEC_VERSION

                ideaModule "${rootProject.name}.${project.name}.userdev"

                source sourceSets.main
                source sourceSets.userdev
            }

            forge_test_server {
                parent runs.forge_server
                taskName 'forge_test_server'

                environment 'MOD_CLASSES', 'dummy' // Needed to work around FG limitation, FG will replace this!

                mods {
                    TestMods { sources sourceSets.test }
                }
            }

            forge_data {
                taskName 'forge_data'

                main 'net.minecraftforge.userdev.LaunchTesting'
                workingDirectory project.file('run')

                environment 'target', 'fmldevdata'

                environment 'MC_VERSION', MC_VERSION
                environment 'MCP_VERSION', MCP_VERSION
                environment 'FORGE_GROUP', project.group
                environment 'FORGE_SPEC', SPEC_VERSION
                environment 'FORGE_VERSION', project.version.substring(MC_VERSION.length() + 1).toString()
                environment 'LAUNCHER_VERSION', SPEC_VERSION

                ideaModule "${rootProject.name}.${project.name}.userdev"

                source sourceSets.main
                source sourceSets.userdev
                
                args '--mod', 'forge', '--all', '--output', rootProject.file('src/generated/resources/')
            }
        }
    }
    
    ext {
        MANIFESTS = [
            '/': [
                'Timestamp': new Date().format("yyyy-MM-dd'T'HH:mm:ssZ"),
                'GitCommit': grgit.head().abbreviatedId,
                'Git-Branch': grgit.branch.current().getName()
            ] as LinkedHashMap,
            'net/minecraftforge/versions/forge/': [
                'Specification-Title':      'Forge',
                'Specification-Vendor':     'Forge Development LLC',
                'Specification-Version':    SPEC_VERSION,
                'Implementation-Title':     project.group,
                'Implementation-Version':   project.version.substring(MC_VERSION.length() + 1),
                'Implementation-Vendor':    'Forge Development LLC'
            ] as LinkedHashMap,
            'net/minecraftforge/versions/mcp/': [
                'Specification-Title':      'Minecraft',
                'Specification-Vendor':     'Mojang',
                'Specification-Version':    MC_VERSION,
                'Implementation-Title':     'MCP',
                'Implementation-Version':   MCP_VERSION,
                'Implementation-Vendor':    'Forge'
            ] as LinkedHashMap,
            'net/minecraftforge/fml/javafmlmod/': [
                'Specification-Title':      'Mod Language Provider',
                'Specification-Vendor':     'Forge Development LLC',
                'Specification-Version':    '1',
                'Implementation-Title':     'FML Java Mod',
                'Implementation-Version':   SPEC_VERSION,
                'Implementation-Vendor':    'Forge'
            ] as LinkedHashMap,
            'net/minecraftforge/fml/loading/': [
                'Specification-Title':      'Launcher',
                'Specification-Vendor':     'Forge Development LLC',
                'Specification-Version':    '1',
                'Implementation-Title':     'FML Launcher',
                'Implementation-Version':   SPEC_VERSION,
                'Implementation-Vendor':    'Forge'
            ] as LinkedHashMap,
            'net/minecraftforge/fml/userdev/': [
                'Specification-Title':      'Forge User Development',
                'Specification-Vendor':     'Forge Development LLC',
                'Specification-Version':    SPEC_VERSION,
                'Implementation-Title':     project.group,
                'Implementation-Version':   project.version.substring(MC_VERSION.length() + 1),
                'Implementation-Vendor':    'Forge Development LLC'
            ] as LinkedHashMap
        ]
    }
    
    applyPatches {
        canonicalizeAccess true
        canonicalizeWhitespace true
        maxFuzz 3
    }
    configurations {
        installer {
            transitive = false //Don't pull all libraries, if we're missing something, add it to the installer list so the installer knows to download it.
        }
        api.extendsFrom(installer)
        fmllauncherImplementation.extendsFrom(installer)
    }
    dependencies {
        installer 'org.ow2.asm:asm:6.2'
        installer 'org.ow2.asm:asm-commons:6.2'
        installer 'org.ow2.asm:asm-tree:6.2'
        installer 'cpw.mods:modlauncher:3.0.+'
        installer 'cpw.mods:grossjava9hacks:1.1.+'
        installer 'net.minecraftforge:accesstransformers:0.16.+:shadowed'
        installer 'net.minecraftforge:eventbus:0.10.+:service'
        installer 'net.minecraftforge:forgespi:0.13.+'
        installer 'net.minecraftforge:coremods:0.6.+'
        installer 'net.minecraftforge:unsafe:0.2.+'
        installer 'com.electronwill.night-config:core:3.6.0'
        installer 'com.electronwill.night-config:toml:3.6.0'
        installer 'org.jline:jline:3.9.0'
        installer 'org.apache.maven:maven-artifact:3.6.0'
        installer 'net.jodah:typetools:0.6.0'
        installer 'java3d:vecmath:1.5.2'
        installer 'org.apache.logging.log4j:log4j-api:2.11.2'
        installer 'org.apache.logging.log4j:log4j-core:2.11.2'
        installer 'net.minecrell:terminalconsoleappender:1.1.+'
        installer 'net.sf.jopt-simple:jopt-simple:5.0.4'
        fmllauncherImplementation 'com.google.guava:guava:21.0'
        fmllauncherImplementation 'com.google.code.gson:gson:2.8.0'
        testImplementation 'org.junit.jupiter:junit-jupiter-api:5.0.0'
        testImplementation 'org.opentest4j:opentest4j:1.0.0' // needed for junit 5
        testImplementation 'org.hamcrest:hamcrest-all:1.3' // needs advanced matching for list order
    }
    
    def extraTxts = [
        rootProject.file('CREDITS.txt'),
        rootProject.file('LICENSE.txt')
    ]
    
    def changelog = rootProject.file('build/changelog.txt')
    if (changelog.exists())
        extraTxts += changelog
    
    task downloadCrowdin() {
        ext {
            output = file('build/crowdin_raw.zip')
            update = file('build/crowdin.json')
            id = 'minecraft-forge'
        }
        onlyIf {
            project.hasProperty('crowdinKey') && !project.gradle.startParameter.isOffline()
        }
        doLast {
            download {
                src "https://api.crowdin.com/api/project/${id}/export?key=${project.crowdinKey}&json"
                dest update
                overwrite true
            }
            if (!update.text.contains('success')) {
                throw new RuntimeException("Crowdin export failed, see ${update} for more info")
            }
            download {
                src "https://api.crowdin.com/api/project/${id}/download/all.zip?key=${project.crowdinKey}"
                dest output
                overwrite true
            }
        }
    }
    
    task crowdin(type: Zip) {
        dependsOn downloadCrowdin
        onlyIf {
            !downloadCrowdin.state.skipped
        }
        baseName = project.name
        version = project.version
        classifier = 'crowdin'
        destinationDir = file('build/distributions')
        from(zipTree(downloadCrowdin.output)){
            eachFile { //Tired of waiting for crowdin API, rename things myself. Remove once crowdin stops being dumb
                    if (it.name.equals('en_us.json') && !it.path.startsWith('assets/')) {
                        it.name = it.path.split('/')[0] + '.json'
                        it.path = 'assets/forge/lang/' + it.name
                    }
                }
                exclude { it.isDirectory() }
                rename { it.toLowerCase() }//Minecraft needs it lowercase.
                exclude '**/*.lang' //Pre-1.13 format
            }
        }
    
    // We apply the bin patches we just created to make a jar that is JUST our changes
    task applyClientBinPatches(type: ApplyBinPatches, dependsOn: genClientBinPatches) {
        clean = { genClientBinPatches.cleanJar }
        input = genClientBinPatches.output
    }
    task applyServerBinPatches(type: ApplyBinPatches, dependsOn: genServerBinPatches) {
        clean = { genServerBinPatches.cleanJar }
        input = genServerBinPatches.output
    }
    task applyJoinedBinPatches(type: ApplyBinPatches, dependsOn: genJoinedBinPatches) {
        clean = { genJoinedBinPatches.cleanJar }
        input = genJoinedBinPatches.output
    }
    // Create SRG named Vanilla jars, using the SpecialSource we have in the installer
    task createClientSRG(type: RenameJar, dependsOn: genClientBinPatches) {
        tool = SPECIAL_SOURCE + ':shaded'
        args = ['--stable', '--in-jar', '{input}', '--out-jar', '{output}', '--srg-in', '{mappings}']
        mappings = { genClientBinPatches.srg }
        input = { genClientBinPatches.cleanJar }
        output = file('build/createClientSRG/output.jar')
    }
    task createServerSRG(type: RenameJar, dependsOn: genServerBinPatches) {
        tool = SPECIAL_SOURCE + ':shaded'
        args = ['--stable', '--in-jar', '{input}', '--out-jar', '{output}', '--srg-in', '{mappings}']
        mappings = { genServerBinPatches.srg }
        input = { genServerBinPatches.cleanJar }
        output = file('build/createServerSRG/output.jar')
    }
    // Checksum tasks so that we can know if the vanilla classes are what we expect them to do!
    task clientBaseChecksum(type: ArchiveChecksum, dependsOn: genClientBinPatches) {
        input = { genClientBinPatches.cleanJar} //Lazy because Patcher Plugin sets the value afterEvaluate
        name = 'client'
    }
    task serverBaseChecksum(type: ArchiveChecksum, dependsOn: genServerBinPatches) {
        input = { genServerBinPatches.cleanJar }
        name = 'server'
    }
    task joinedBaseChecksum(type: ArchiveChecksum, dependsOn: genJoinedBinPatches) {
        input = { genJoinedBinPatches.cleanJar }
        name = 'joined'
    }
    task clientPatchedChecksum(type: ArchiveChecksum, dependsOn: applyClientBinPatches) {
        input = applyClientBinPatches.output
        name = 'client_patched'
    }
    task serverPatchedChecksum(type: ArchiveChecksum, dependsOn: applyServerBinPatches) {
        input = applyServerBinPatches.output
        name = 'server_patched'
    }
    task joinedPatchedChecksum(type: ArchiveChecksum, dependsOn: applyJoinedBinPatches) {
        input = applyJoinedBinPatches.output
        name = 'joined_patched'
    }
    // Utility methods for testing checksums
    task cleanChecksums() {
        ['client', 'server', 'joined'].each { side ->
            ['Base', 'Patched'].each { type -> 
                def clean = "clean${side.capitalize()}${type}Checksum"
                dependsOn(clean)
                tasks.findByName("${side}${type}Checksum").mustRunAfter(clean)
            }
        }
    }
    task checksums() {
        ['client', 'server', 'joined'].each { side ->
            ['Base', 'Patched'].each { type -> 
                dependsOn("${side}${type}Checksum")
            }
        }
    }
    task checkATs(dependsOn: genJoinedBinPatches) {
        inputs.file { genJoinedBinPatches.cleanJar }
        inputs.files patcher.accessTransformers
        doLast {
            def vanilla = [:]
            def zip = new java.util.zip.ZipFile(genJoinedBinPatches.cleanJar)
            zip.entries().findAll { !it.directory && it.name.endsWith('.class') }.each { entry ->
                new ClassReader(zip.getInputStream(entry)).accept(new org.objectweb.asm.ClassVisitor(org.objectweb.asm.Opcodes.ASM7) {
                    String name
                    void visit(int version, int access, String name, String sig, String superName, String[] interfaces) {
                        this.name = name
                        vanilla[name] = access
                    }
                    org.objectweb.asm.FieldVisitor visitField(int access, String name, String desc, String sig, Object value) {
                        vanilla[this.name + ' ' + name] = access
                        return null
                    }
                    org.objectweb.asm.MethodVisitor visitMethod(int access, String name, String desc, String sig, String[] excs) {
                        vanilla[this.name + ' ' + name + desc] = access
                        return null
                    }
                }, ClassReader.SKIP_CODE | ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES)   
            }
            patcher.accessTransformers.each { f -> 
                TreeMap lines = [:]
                f.eachLine { line -> 
                    def idx = line.indexOf('#')
                    if (idx == 0 || line.isEmpty()) return
                    def comment = idx == -1 ? null : line.substring(idx)
                    if (idx != -1) line = line.substring(0, idx - 1)
                    def (modifier, cls, desc) = (line.trim() + '     ').split(' ', -1)
                    def key = cls + (desc.isEmpty() ? '' : ' ' + desc)
                    def access = vanilla[key.replace('.', '/')]
                    if (access == null) {
                        if ((desc.equals('*') || desc.equals('*()')) && vanilla[cls.replace('.', '/')] != null)
                            println('Warning: ' + line)
                        else {
                            println('Invalid: ' + line)
                            return
                        }
                    }
                    //TODO: Check access actually changes, and expand inheretence?
                    lines[key] = [modifier: modifier, comment: comment]
                }
                f.text = lines.collect{ it.value.modifier + ' ' + it.key + (it.value.comment == null ? '' : ' ' + it.value.comment) }.join('\n')
            }
        }
    }
    
    task launcherJson(dependsOn: ['signUniversalJar', 'signLauncherJar']) {
        inputs.file universalJar.archivePath
        inputs.file { launcherJar.archivePath }
        ext {
            output = file('build/version.json')
            vanilla = project(':mcp').file('build/mcp/downloadJson/version.json')
            timestamp = dateToIso8601(new Date())
            comment = [
                "Please do not automate the download and installation of Forge.",
                "Our efforts are supported by ads from the download page.",
                "If you MUST automate this, please consider supporting the project through https://www.patreon.com/LexManos/"
            ]
            def idx = project.version.indexOf('-')
            id = project.version.substring(0, idx) + "-${project.name}" + project.version.substring(idx)
        }
        inputs.file vanilla
        outputs.file output
        doLast {
            def json_vanilla = new JsonSlurper().parseText(vanilla.text)
            def json = [            
                _comment_: comment,
                id: id,
                time: timestamp,
                releaseTime: timestamp,
                type: 'release',
                mainClass: 'cpw.mods.modlauncher.Launcher',
                inheritsFrom: MC_VERSION,
                logging: {},
                arguments: [
                    game: ['--launchTarget', 'fmlclient', '--fml.forgeVersion',  "${project.version.substring(MC_VERSION.length() + 1)}", '--fml.mcVersion', "${MC_VERSION}", '--fml.forgeGroup', "${project.group}", '--fml.mcpVersion', "${MCP_VERSION}"]
                ],
                libraries: [
                    [
                        //Package our launcher jar as the 'main' jar Mojang's launcher loads. It will in turn load Forge's regular jars itself.
                        name: "${project.group}:${project.name}:${project.version}",
                        downloads: [
                            artifact: [
                                path: "${project.group.replace('.', '/')}/${project.name}/${project.version}/${project.name}-${project.version}.jar",
                                url: "", //Do not include the URL so that the installer/launcher won't grab it. This is also why we don't have the universal classifier
                                sha1: sha1(launcherJar.archivePath),
                                size: launcherJar.archivePath.length()
                            ]
                        ]
                    ] 
                ]
            ]
            
            def artifacts = getArtifacts(project, project.configurations.installer, false)
            artifacts.each { key, lib ->
                json.libraries.add(lib)
            }
            
            output.text = new JsonBuilder(json).toPrettyString()
        }
    }
      
    task installerJson(dependsOn: [launcherJson, genClientBinPatches, applyClientBinPatches, applyServerBinPatches/*, createClientSRG, createServerSRG*/]) {
        ext {
            output = file('build/install_profile.json')
            INSTALLER_TOOLS = 'net.minecraftforge:installertools:1.1.4'
            JAR_SPLITTER = 'net.minecraftforge:jarsplitter:1.1.0'
        }
        doFirst {
            ext.BIN_PATCHER = 'net.minecraftforge:binarypatcher:' + genClientBinPatches.resolvedVersion
        }
        inputs.file applyClientBinPatches.output
        inputs.file applyServerBinPatches.output
        inputs.file genClientBinPatches.toolJar
        inputs.file launcherJson.output
        /*
        inputs.file createClientSRG.output
        inputs.file createServerSRG.output
        */
        outputs.file output
        doLast {
            def libs = [
                "${project.group}:${project.name}:${project.version}:universal": [
                    name: "${project.group}:${project.name}:${project.version}:universal",
                    downloads: [
                        artifact: [
                            path: "${project.group.replace('.', '/')}/${project.name}/${project.version}/${project.name}-${project.version}-universal.jar",
                            url: "", //Do not include the URL so that the installer/launcher won't grab it. This is also why we don't have the universal classifier
                            sha1: sha1(universalJar.archivePath),
                            size: universalJar.archivePath.length()
                        ]
                    ]
                ]
            ]
            def json = [
                _comment_: launcherJson.comment,
                spec: 0,
                profile: project.name,
                version: launcherJson.id,
                json: '/version.json',
                path: "${project.group}:${project.name}:${project.version}",
                logo: '/big_logo.png',
                minecraft: MC_VERSION,
                welcome: "Welcome to the simple ${project.name.capitalize()} installer.",
                data: [
                    MAPPINGS: [
                        client: "[${MCP_ARTIFACT.group}:${MCP_ARTIFACT.name}:${MCP_ARTIFACT.version}:mappings@txt]",
                        server: "[${MCP_ARTIFACT.group}:${MCP_ARTIFACT.name}:${MCP_ARTIFACT.version}:mappings@txt]"
                    ],
                    BINPATCH: [
                        client: '/data/client.lzma',
                        server: '/data/server.lzma'
                    ],
                    MC_SLIM: [
                        client: "[net.minecraft:client:${MC_VERSION}:slim]",
                        server: "[net.minecraft:server:${MC_VERSION}:slim]"
                    ],
                    MC_SLIM_SHA: [
                        client: "'${sha1(tasks.getByName('downloadClientSlim').output)}'",
                        server: "'${sha1(tasks.getByName('downloadServerSlim').output)}'"
                    ],
                    MC_EXTRA: [
                        client: "[net.minecraft:client:${MC_VERSION}:extra]",
                        server: "[net.minecraft:server:${MC_VERSION}:extra]"
                    ],
                    MC_EXTRA_SHA: [
                        client: "'${sha1(tasks.getByName('downloadClientExtra').output)}'",
                        server: "'${sha1(tasks.getByName('downloadServerExtra').output)}'"
                    ],
                    MC_SRG: [
                        client: "[net.minecraft:client:${MC_VERSION}-${MCP_VERSION}:srg]",
                        server: "[net.minecraft:server:${MC_VERSION}-${MCP_VERSION}:srg]"
                    ],
                    /*MC_SRG_SHA: [
                        client: "'${sha1(createClientSRG.output)}'",
                        server: "'${sha1(createServerSRG.output)}'"
                    ],*/
                    PATCHED: [
                        client: "[${project.group}:${project.name}:${project.version}:client]",
                        server: "[${project.group}:${project.name}:${project.version}:server]"
                    ],
                    PATCHED_SHA: [
                        client: "'${sha1(applyClientBinPatches.output)}'",
                        server: "'${sha1(applyServerBinPatches.output)}'"
                    ],
                    MCP_VERSION: [
                        client: "'${MCP_VERSION}'",
                        server: "'${MCP_VERSION}'"
                    ]
                ],
                processors: [
                    [
                        jar: INSTALLER_TOOLS,
                        classpath: getClasspath(project, libs, INSTALLER_TOOLS),
                        args: [
                            '--task', 'MCP_DATA',
                            '--input', "[${MCP_ARTIFACT.descriptor}]",
                            '--output', '{MAPPINGS}',
                            '--key', 'mappings'
                        ]
                    ], [
                        jar: JAR_SPLITTER,
                        classpath: getClasspath(project, libs, JAR_SPLITTER),
                        args: [
                            '--input', '{MINECRAFT_JAR}',
                            '--slim',  '{MC_SLIM}',
                            '--extra', '{MC_EXTRA}',
                            '--srg', '{MAPPINGS}'
                        ],
                        outputs: [
                            '{MC_SLIM}': '{MC_SLIM_SHA}',
                            '{MC_EXTRA}': '{MC_EXTRA_SHA}'
                        ]
                    ], [
                        jar: SPECIAL_SOURCE,
                        classpath: getClasspath(project, libs, SPECIAL_SOURCE),
                        args: [
                            //'--stable', Java 9 Is borked, https://bugs.openjdk.java.net/browse/JDK-8184940 TODO: find a fix.
                            '--in-jar', '{MC_SLIM}',
                            '--out-jar', '{MC_SRG}',
                            '--srg-in', '{MAPPINGS}'
                        ]/*,
                        outputs: [
                            '{MC_SRG}': '{MC_SRG_SHA}'
                        ]
                        */
                    ], [
                        jar: BIN_PATCHER,
                        classpath: getClasspath(project, libs, BIN_PATCHER),
                        args: [
                            '--clean', '{MC_SRG}',
                            '--output', '{PATCHED}',
                            '--apply', '{BINPATCH}'
                        ],
                        outputs: [
                            '{PATCHED}': '{PATCHED_SHA}'
                        ]
                    ]
                ]
            ]
            getClasspath(project, libs, MCP_ARTIFACT.descriptor) //Tell it to download mcp_config
            json.libraries = libs.values().sort{a,b -> a.name.compareTo(b.name)}
            
            output.text = new JsonBuilder(json).toPrettyString()
        }
    }
    
    ['client', 'server'].each { side ->
        ['slim', 'extra'].each { type -> 
            def name = "download${side.capitalize()}${type.capitalize()}"
            task "${name}"(type: DownloadMavenArtifact) {
                artifact = "net.minecraft:${side}:${MC_VERSION}:${type}"
            }
            installerJson.dependsOn(name)
            installerJson.inputs.file(tasks.getByName(name).output)
        }
    }
    
    universalJar {
        from extraTxts
        
        /* TODO: Annotation Cache? need to talk to cpw about his new design.
        from(fixAnnotationsJson){
            into 'META-INF'
        }
        dependsOn fixAnnotationsJson
        */
        
        /* We do not actually check this anywhere, so it's 400KB of uselless data
        // Add checksum files of clean and patched vanilla classes.
        ['client', 'server'].each { side ->
            ['Base', 'Patched'].each { type -> 
                from(tasks.getByName("${side}${type}Checksum").output) {
                    into 'checksums/'
                }
            }
        }
        dependsOn checksums
        */
        
        // add crowdin locales
        from { !crowdin.state.skipped ? zipTree(crowdin.archivePath) : null}
        dependsOn crowdin

        doFirst {
            MANIFESTS.each{ pkg, values ->
                if (pkg == '/') {
                    manifest.attributes(values)
                } else {
                    manifest.attributes(values, pkg)
                }
            }
        }
    }
    
    task launcherJar(type: Jar) {
        classifier 'launcher'
        from sourceSets.fmllauncher.output
        doFirst {
            def classpath = new StringBuilder()
            def artifacts = getArtifacts(project, project.configurations.installer, false)
            artifacts.each { key, lib ->
                classpath += "libraries/${lib.downloads.artifact.path} "
            }
            classpath += "libraries/net/minecraft/server/${MC_VERSION}/server-${MC_VERSION}-extra.jar"
            
            MANIFESTS.each{ pkg, values ->
                if (pkg == '/') {
                    manifest.attributes(values += [
                        'Main-Class': 'net.minecraftforge.server.ServerMain',
                        'Class-Path': classpath.toString(),
                        'ServerLaunchArgs': [
                            '--gameDir',          '.',
                            '--launchTarget',     'fmlserver',
                            '--fml.forgeVersion', "${project.version.substring(MC_VERSION.length() + 1)}".toString(),
                            '--fml.mcpVersion',   MCP_VERSION,
                            '--fml.mcVersion',    MC_VERSION,
                            '--fml.forgeGroup',   project.group
                    ].join(' ')
                    ])
                } else {
                    manifest.attributes(values, pkg)
                }
            }
        }
    }
    
    task downloadInstaller(type: DownloadMavenArtifact) {
        artifact = 'net.minecraftforge:installer:2.0.+:shrunk'
        changing = true
    }
    
    task installerJar(type: Zip, dependsOn: [downloadInstaller, installerJson, launcherJson, genClientBinPatches, genServerBinPatches, 'signUniversalJar', 'signLauncherJar']) {
        classifier = 'installer'
        extension = 'jar' //Needs to be Zip task to not override Manifest, so set extension
        destinationDir = file('build/libs')
        from(extraTxts)
        from(rootProject.file('/src/main/resources/forge_logo.png')) {
            rename{'big_logo.png'}
        }
        from(rootProject.file('/src/main/resources/url.png'))
        from(genClientBinPatches.output) {
            rename{'data/client.lzma'}
        }
        from(genServerBinPatches.output) {
            rename{'data/server.lzma'}
        }
        from(universalJar) {
            into "/maven/${project.group.replace('.', '/')}/${project.name}/${project.version}/"
        }
        from(launcherJar) {
            into "/maven/${project.group.replace('.', '/')}/${project.name}/${project.version}/"
            rename { "${project.name}-${project.version}.jar" }
        }
        from(installerJson.output)
        from(launcherJson.output)
        from(zipTree(downloadInstaller.output)) {
            duplicatesStrategy = 'exclude'
        }
    }
    
    [universalJar, launcherJar, installerJar].each { t -> 
        task "sign${t.name.capitalize()}"(type: SignJar, dependsOn: t) {
            onlyIf {
                JAR_SIGNER != null && t.state.failure == null
            }
            def jarsigner = JAR_SIGNER == null ? [:] : JAR_SIGNER
            alias = 'forge'
            storePass = jarsigner.storepass
            keyPass = jarsigner.keypass
            keyStore = jarsigner.keystore
            inputFile = t.archivePath
            outputFile = t.archivePath
            doFirst {
                project.logger.lifecycle('Signing: ' + inputFile)
            }
        }
        t.finalizedBy(tasks.getByName("sign${t.name.capitalize()}"))
    }
    
    task makeMdk(type: Zip) {
        baseName = project.name
        classifier = 'mdk'
        version = project.version
        destinationDir = file('build/libs')

        from rootProject.file('gradlew')
        from rootProject.file('gradlew.bat')
        from extraTxts
        from(rootProject.file('gradle/')){
            into('gradle/')
        }
        from(rootProject.file('mdk/')){
            rootProject.file('mdk/gitignore.txt').eachLine{
                if (!it.trim().isEmpty() && !it.trim().startsWith('#'))
                    exclude it
            }
            filter(ReplaceTokens, tokens: [
                FORGE_VERSION: project.version,
                FORGE_GROUP: project.group,
                FORGE_NAME: project.name,
                MC_VERSION: MC_VERSION,
                MAPPING_CHANNEL: MAPPING_CHANNEL,
                MAPPING_VERSION: MAPPING_VERSION
            ])
            rename 'gitignore\\.txt', '.gitignore'
        }
    }
    
    userdevConfig {
        def artifacts = getArtifacts(project, project.configurations.installer, true)
        artifacts.each { key, lib ->
            addLibrary(lib.name)
        }
        addLibrary("${project.group}:${project.name}:${project.version}:launcher")
        runs {
            client {
                main 'net.minecraftforge.userdev.LaunchTesting'

                environment 'target', 'fmluserdevclient'
                environment 'assetIndex', '{asset_index}'
                environment 'assetDirectory', '{assets_root}'
                environment 'nativesDirectory', '{natives}'

                environment 'MC_VERSION', "${MC_VERSION}"
                environment 'FORGE_GROUP', "${project.group}"
                environment 'MCP_VERSION', "${MCP_VERSION}"
                environment 'MOD_CLASSES', '{source_roots}'
                environment 'MCP_MAPPINGS', '{mcp_mappings}'
                environment 'FORGE_VERSION', "${project.version.substring(MC_VERSION.length() + 1)}"
            }

            server {
                main 'net.minecraftforge.userdev.LaunchTesting'

                environment 'target', 'fmluserdevserver'

                environment 'MC_VERSION', "${MC_VERSION}"
                environment 'FORGE_GROUP', "${project.group}"
                environment 'MCP_VERSION', "${MCP_VERSION}"
                environment 'MOD_CLASSES', '{source_roots}'
                environment 'MCP_MAPPINGS', '{mcp_mappings}'
                environment 'FORGE_VERSION', "${project.version.substring(MC_VERSION.length() + 1)}"
            }

            data {
                main 'net.minecraftforge.userdev.LaunchTesting'

                environment 'target', 'fmluserdevdata'

                environment 'MC_VERSION', "${MC_VERSION}"
                environment 'FORGE_GROUP', "${project.group}"
                environment 'MCP_VERSION', "${MCP_VERSION}"
                environment 'MOD_CLASSES', '{source_roots}'
                environment 'MCP_MAPPINGS', '{mcp_mappings}'
                environment 'FORGE_VERSION', "${project.version.substring(MC_VERSION.length() + 1)}"
            }
        }
    }
    
    license {
        header = file("$rootDir/LICENSE-header.txt")

        include 'net/minecraftforge/'
        exclude 'net/minecraftforge/server/terminalconsole/'
        exclude 'net/minecraftforge/api/' // exclude API here because it's validated in the SPI build
        exclude 'net/minecraftforge/fml/common/versioning/ComparableVersion.java'
        exclude 'net/minecraftforge/fml/common/versioning/InvalidVersionSpecificationException.java'
        exclude 'net/minecraftforge/fml/common/versioning/Restriction.java'
        exclude 'net/minecraftforge/fml/common/versioning/VersionRange.java'

        tasks {
            main {
                files = files("$rootDir/src/main/java")
            }
            test {
                files = files("$rootDir/src/test/java")
            }
        }
    }

    task userdevExtras(type:Jar) {
        dependsOn classes
        from sourceSets.userdev.output
        classifier 'userdev-temp'
    }

    task userdevExtrasReobf(type:TaskReobfuscateJar) {
        dependsOn userdevExtras, createMcp2Srg
        input = tasks.userdevExtras.archivePath
        classpath = project.configurations.compile
        srg = tasks.createMcp2Srg.output
    }

    userdevJar {
        dependsOn userdevExtrasReobf
        from (zipTree(tasks.userdevExtrasReobf.output)) {
            into '/inject/'
        }
        from (sourceSets.userdev.output.resourcesDir) {
            into '/inject/'
        }
    }

    extractRangeMap {
        addDependencies jar.archivePath
        addSources sourceSets.userdev.java.srcDirs
    }
    applyRangeMap {
        setSources sourceSets.userdev.java.srcDirs
    }
    
    tasks.eclipse.dependsOn('genEclipseRuns')
    
    publishing {
        publications {
            mavenJava(MavenPublication) {
                artifact universalJar
                if (changelog.exists()) {
                    artifact(changelog) {
                        classifier = 'changelog'
                    }
                }
                artifact installerJar
                //TODO: installer-win
                artifact makeMdk
                artifact userdevJar
                artifact sourcesJar
                artifact launcherJar

                pom {
                    name = 'forge'
                    description = 'Modifactions to Minecraft to enable mod developers.'
                    url = 'https://github.com/MinecraftForge/MinecraftForge'

                    scm {
                        url = 'https://github.com/MinecraftForge/MinecraftForge'
                        connection = 'scm:git:git://github.com/MinecraftForge/MinecraftForge.git'
                        developerConnection = 'scm:git:git@github.com:MinecraftForge/MinecraftForge.git'
                    }

                    issueManagement {
                        system = 'github'
                        url = 'https://github.com/MinecraftForge/MinecraftForge/issues'
                    }

                    licenses {
                        license {
                            name = 'LGPL 2.1'
                            url = 'https://github.com/MinecraftForge/MinecraftForge/blob/1.13-pre/LICENSE.txt'
                            distribution = 'repo'
                        }
                    }
                }
            }
        }
        repositories {
            maven {
                if (project.hasProperty('forgeMavenPassword')) {
                    credentials {
                        username project.properties.forgeMavenUser
                        password project.properties.forgeMavenPassword
                    }
                    url 'https://files.minecraftforge.net/maven/manage/upload'
                } else {
                    url 'file://' + rootProject.file('repo').getAbsolutePath()
                }
            }
        }
    }
}

def dateToIso8601(date) {
    def format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
    def result = format.format(date)
    return result[0..21] + ':' + result[22..-1]
}

def sha1(file) {
    MessageDigest md = MessageDigest.getInstance('SHA-1')
    file.eachByte 4096, {bytes, size ->
        md.update(bytes, 0, size)
    }
    return md.digest().collect {String.format "%02x", it}.join()
}

def artifactTree(project, artifact) {
    if (!project.ext.has('tree_resolver'))
        project.ext.tree_resolver = 1
    def cfg = project.configurations.create('tree_resolver_' + project.ext.tree_resolver++)
    def dep = project.dependencies.create(artifact)
    cfg.dependencies.add(dep)
    def files = cfg.resolve()
    return getArtifacts(project, cfg, true)
}

def getArtifacts(project, config, classifiers) {
    def ret = [:]
    config.resolvedConfiguration.resolvedArtifacts.each {
        def art = [
            group: it.moduleVersion.id.group,
            name: it.moduleVersion.id.name,
            version: it.moduleVersion.id.version,
            classifier: it.classifier,
            extension: it.extension,
            file: it.file
        ]
        def key = art.group + ':' + art.name
        def folder = "${art.group.replace('.', '/')}/${art.name}/${art.version}/"
        def filename = "${art.name}-${art.version}"
        if (art.classifier != null)
            filename += "-${art.classifier}"
        filename += ".${art.extension}"
        def path = "${folder}${filename}"
        def url = "https://libraries.minecraft.net/${path}"
        if (!checkExists(url)) {
            url = "https://files.minecraftforge.net/maven/${path}"
        }
        //TODO remove when Mojang launcher is updated
        if (!classifiers && art.classifier != null) { //Mojang launcher doesn't currently support classifiers, so... move it to part of the version, and force the extension to 'jar'
            art.version = "${art.version}-${art.classifier}"
            art.classifier = null
            art.extension = 'jar'
            path = "${art.group.replace('.', '/')}/${art.name}/${art.version}/${art.name}-${art.version}.jar"
        }
        ret[key] = [
            name: "${art.group}:${art.name}:${art.version}" + (art.classifier == null ? '' : ":${art.classifier}") + (art.extension == 'jar' ? '' : "@${art.extension}"),
            downloads: [
                artifact: [
                    path: path,
                    url: url,
                    sha1: sha1(art.file),
                    size: art.file.length()
                ]
            ]
        ]
    }
    return ret
}

def checkExists(url) {
    def code = new URL(url).openConnection().with {
        requestMethod = 'HEAD'
        connect()
        responseCode
    }
    return code == 200
}

def getClasspath(project, libs, artifact) {
    def ret = []
    artifactTree(project, artifact).each { key, lib ->
        libs[lib.name] = lib
        if (lib.name != artifact)
            ret.add(lib.name)
    }
    return ret
}

//evaluationDependsOnChildren()
task setup() {
    dependsOn ':clean:extractMapped'
    dependsOn ':forge:extractMapped' //These must be strings so that we can do lazy resolution. Else we need evaluationDependsOnChildren above
}