build.gradle

plugins {
	id 'com.github.johnrengelman.shadow' version '5.0.0'
	id 'java'
}

apply from: 'helper.gradle'


defaultTasks 'build'


group 'protocolsupport'
version '4.29-dev'


File librariesRuntimeDirectory = new File("libraries_runtime")
File librariesShadeDirectory = new File("libraries_shade")
File generatedResourcesDirectory = new File("gen")
File annotationProcessorsDirectory = new File("processors")
File targetJarDirectory = new File("target")
String resourcesDirectoryName = "resources";

task setupFolders(type: DefaultTask) {doLast{
	librariesRuntimeDirectory.mkdirs()
	librariesShadeDirectory.mkdirs()
	targetJarDirectory.mkdirs()
	generatedResourcesDirectory.deleteDir()
	generatedResourcesDirectory.mkdirs()
}}


sourceCompatibility = JavaVersion.VERSION_1_8

sourceSets {
	main {
		java {
			srcDirs = ['src']
		}
		resources {
			srcDirs = ['resources']
		}
	}
	test {
		java {
			srcDirs = ['tests']
		}
	}
}

repositories {
	mavenCentral()
	jcenter()
	maven {
		url 'https://oss.sonatype.org/content/repositories/snapshots/'
	}
	maven {
		url 'https://papermc.io/repo/repository/maven-public/'
	}
}

task updateSpigot(type: BuildLibraryTask) {
	targetDirectory = librariesRuntimeDirectory
	targetLibraryName = "spigot-1.15.2-1.jar"
	builderUrl = "https://papermc.io/api/v1/paper/1.15.2/65/download"
	buildCommand = "java -Dpaperclip.patchonly=true -jar {BUILDER}"
	builtLibraryName = ["cache", "patched_1.15.2.jar"]
}

task updateRuntimeLibraries(type: UpdateLibrariesTask) {
	directory = librariesRuntimeDirectory
	libraries = []
	manualLibraries = new HashSet<>(Arrays.asList(updateSpigot.targetLibraryName))
}

task updateShadeLibraries(type: UpdateLibrariesTask) {
	directory = librariesShadeDirectory
	libraries = []
}

dependencies {
	compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.8.1'
	compile group: 'it.unimi.dsi', name: 'fastutil', version: '8.2.2'
	compile group: 'com.google.code.gson', name: 'gson', version: '2.8.5'
	compile fileTree(dir: librariesShadeDirectory, include: '*.jar')
	compileOnly group: 'com.destroystokyo.paper', name: 'paper-api', version: '1.15.1-R0.1-SNAPSHOT'
	compileOnly fileTree(dir: librariesRuntimeDirectory, include: '*.jar')
	compileOnly fileTree(dir: new File("libraries_runtime_manual"), include: '*.jar')

	annotationProcessor fileTree(dir: annotationProcessorsDirectory, include: '*.jar')
	compileOnly fileTree(dir: annotationProcessorsDirectory, include: '*.jar')

	testCompile fileTree(dir: librariesRuntimeDirectory, include: '*.jar')
	testCompile fileTree(dir: librariesShadeDirectory, include: '*.jar')
	testCompile 'org.junit.jupiter:junit-jupiter-api:5.2.0'
	testRuntime 'org.junit.jupiter:junit-jupiter-engine:5.2.0'
}

compileJava {
	doFirst {
	    classpath -= configurations.compileOnly
	    classpath += configurations.compileOnly
	}

	options.encoding = 'UTF-8'
	options.incremental = false
	options.compilerArgs << ("-Aprotocolsupportbuildprocessor.generatedresourcesdirectory=" + newFile(generatedResourcesDirectory, resourcesDirectoryName, "preload").getAbsolutePath())
}


test {
    useJUnitPlatform()
}


task generateLocaleList(type: DefaultTask) {doLast{
	File langsListFile = newFile(generatedResourcesDirectory, resourcesDirectoryName, "i18n", "languages")
	langsListFile.getParentFile().mkdirs()
	langsListFile.createNewFile()
	new PrintWriter(langsListFile).withCloseable({
		writer ->
			newFile(sourceSets.main.resources.srcDirs.iterator().next(), resourcesDirectoryName, "i18n").list()
			.each({
				String[] split = it.split("[.]");
				if (split.length == 2 && split[1].equals("json")) {
					writer.println(split[0])
				}
			})
	})
}}

task generateInfo(type: DefaultTask) {doLast{
	Properties properties = new Properties()
	properties.setProperty("buildtime", new Date().format("yyyy.MM.dd 'at' HH:mm:ss z"))
	properties.setProperty("buildhost", System.getProperty("protocolsupport.buildhost", "unknown"))
	properties.setProperty("buildnumber", System.getProperty("protocolsupport.buildnumber", "unknown"))
	properties.setProperty("buildgit", System.getProperty("protocolsupport.buildgit", "unknown"))
	File buildInfoFile = newFile(generatedResourcesDirectory, resourcesDirectoryName, "buildinfo")
	buildInfoFile.getParentFile().mkdirs()
	buildInfoFile.createNewFile()
	new FileOutputStream(buildInfoFile).withCloseable({ properties.store(it, "Build info") })
}}

String relocatePrefix = "protocolsupport.libs."

shadowJar {
	doFirst {
		new File(destinationDir, archiveName).delete()
	}

	from sourceSets.main.java.srcDirs
	from 'LICENSE'
	from generatedResourcesDirectory

	archiveName = jar.archiveName

	exclude 'META-INF/**'
	relocate 'org.apache', relocatePrefix + 'org.apache'
	relocate 'it.unimi.dsi.fastutil', relocatePrefix + 'it.unimi.dsi.fastutil'
	relocate 'com.google.gson', relocatePrefix + 'com.google.gson'

	minimize()
}

task postprocessFatJar(type: Zip) {
	Set<String> workaroundRelocationClasses = new HashSet<>(Arrays.asList(
		"protocolsupport/zplatform/impl/spigot/entitytracker/SpigotEntityTrackerEntryInjectorMap.class",
		"protocolsupport/zplatform/impl/spigot/entitytracker/PaperSpigotEntityTrackerEntryInjectorMap.class",
		"protocolsupport/zplatform/impl/spigot/injector/SpigotEntityTrackerInjector.class"
	));
	File originalJar = new File(shadowJar.destinationDir, shadowJar.archiveName)

	archiveName = shadowJar.archiveName

	from(zipTree(originalJar)) {
        exclude(workaroundRelocationClasses)
	}

	from(sourceSets.main.output.classesDirs) {
		include(workaroundRelocationClasses)    
	}
}


task copyFinalJarToTarget(type: DefaultTask) {doLast{
	java.nio.file.Files.copy(
		postprocessFatJar.archivePath.getAbsoluteFile().toPath(),
		new File(targetJarDirectory, jar.baseName + '.jar').getAbsoluteFile().toPath(),
		java.nio.file.StandardCopyOption.REPLACE_EXISTING
	)
}}


compileJava.dependsOn(clean)
compileJava.dependsOn(setupFolders)
compileJava.dependsOn(updateSpigot)
compileJava.dependsOn(updateRuntimeLibraries)
compileJava.dependsOn(updateShadeLibraries)
compileJava.finalizedBy(test)
jar.enabled = false
jar.finalizedBy(shadowJar)
shadowJar.dependsOn(generateInfo)
shadowJar.dependsOn(generateLocaleList)
shadowJar.finalizedBy(postprocessFatJar)
postprocessFatJar.finalizedBy(copyFinalJarToTarget)