Add support for running a second custom directory as a Minecraft server.

src/main/kotlin/gay/pizza/foundation/concrete/ConcretePluginPlugin.kt

@@ -27,5 +27,7 @@ class ConcretePluginPlugin : ConcreteBaseBukkitPlugin() {
     project.tasks.addTaskDependency("assemble", "shadowJar")
 
     project.concreteRootProject.tasks["setupPaperServer"].dependsOn(project.tasks["shadowJar"])
+    project.concreteRootProject.tasks.find<SetupLocalMinecraftServer>("setupLocalMinecraftServer")
+      ?.dependsOn(project.tasks["shadowJar"])
   }
 }

src/main/kotlin/gay/pizza/foundation/concrete/ConcreteRootPlugin.kt

@@ -4,6 +4,7 @@ import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.kotlin.dsl.apply
 import org.gradle.kotlin.dsl.create
+import java.nio.file.Paths
 
 class ConcreteRootPlugin : Plugin<Project> {
   override fun apply(project: Project) {
@@ -13,6 +14,21 @@ class ConcreteRootPlugin : Plugin<Project> {
     val runPaperServer = project.tasks.create<RunPaperServer>("runPaperServer")
     runPaperServer.dependsOn(setupPaperServer)
 
+    val maybeLocalServerPathString = project.properties["localMinecraftServerPath"]?.toString()
+
+    if (maybeLocalServerPathString != null) {
+      val localServerJarFileName = project.properties["localMinecraftServerJarFileName"]?.toString() ?: "server.jar"
+      val currentWorkingDirectory = System.getProperty("user.dir")
+      val localServerDirectory = Paths.get(currentWorkingDirectory).resolve(maybeLocalServerPathString).toFile()
+      val setupLocalMinecraftServer = project.tasks.create<SetupLocalMinecraftServer>("setupLocalMinecraftServer")
+      val runLocalMinecraftServer = project.tasks.create<RunLocalMinecraftServer>("runLocalMinecraftServer")
+      runLocalMinecraftServer.dependsOn(setupLocalMinecraftServer)
+
+      setupLocalMinecraftServer.minecraftServerDirectory = localServerDirectory
+      runLocalMinecraftServer.minecraftServerDirectory = localServerDirectory
+      runLocalMinecraftServer.serverJarFileName = localServerJarFileName
+    }
+
     val updateManifests = project.tasks.create<UpdateManifestTask>("updateManifests")
     project.tasks.getByName("assemble").dependsOn(updateManifests)
   }

src/main/kotlin/gay/pizza/foundation/concrete/RunLocalMinecraftServer.kt

@@ -0,0 +1,18 @@
+package gay.pizza.foundation.concrete
+
+import org.gradle.api.tasks.Internal
+import java.io.File
+
+open class RunLocalMinecraftServer : RunMinecraftServer() {
+  @Internal
+  lateinit var minecraftServerDirectory: File
+
+  @Internal
+  lateinit var serverJarFileName: String
+
+  @Internal
+  override fun getServerDirectory(): File = minecraftServerDirectory
+
+  @Internal
+  override fun getServerJarName(): String = serverJarFileName
+}

src/main/kotlin/gay/pizza/foundation/concrete/RunMinecraftServer.kt

@@ -0,0 +1,47 @@
+package gay.pizza.foundation.concrete
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.TaskAction
+import java.io.File
+import java.util.jar.JarFile
+
+abstract class RunMinecraftServer : DefaultTask() {
+  init {
+    outputs.upToDateWhen { false }
+  }
+
+  @get:Input
+  var additionalServerArguments = mutableListOf<String>()
+
+  @get:Input
+  var disableServerGui = true
+
+  @TaskAction
+  fun runMinecraftServer() {
+    val minecraftServerDirectory = getServerDirectory()
+    val serverJarFile = minecraftServerDirectory.resolve(getServerJarName())
+    val mainClassName = readMainClass(serverJarFile)
+
+    project.javaexec {
+      classpath(serverJarFile.absolutePath)
+      workingDir(minecraftServerDirectory)
+
+      val allServerArguments = mutableListOf<String>()
+      allServerArguments.addAll(additionalServerArguments)
+      if (disableServerGui) {
+        allServerArguments.add("nogui")
+      }
+
+      args(allServerArguments)
+      mainClass.set(mainClassName)
+    }
+  }
+
+  private fun readMainClass(file: File): String = JarFile(file).use { jar ->
+    jar.manifest.mainAttributes.getValue("Main-Class")!!
+  }
+
+  abstract fun getServerDirectory(): File
+  abstract fun getServerJarName(): String
+}

src/main/kotlin/gay/pizza/foundation/concrete/RunPaperServer.kt

@@ -7,41 +7,15 @@ import org.gradle.kotlin.dsl.getByType
 import java.io.File
 import java.util.jar.JarFile
 
-open class RunPaperServer : DefaultTask() {
+open class RunPaperServer : RunMinecraftServer() {
   init {
     outputs.upToDateWhen { false }
   }
 
-  @get:Input
-  var additionalServerArguments = mutableListOf<String>()
-
-  @get:Input
-  var disableServerGui = true
-
-  @TaskAction
-  fun runPaperServer() {
+  override fun getServerDirectory(): File {
     val concrete = project.extensions.getByType<ConcreteExtension>()
-
-    val minecraftServerDirectory = project.file(concrete.minecraftServerPath.get())
-    val paperJarFile = minecraftServerDirectory.resolve("paper.jar")
-    val mainClassName = readMainClass(paperJarFile)
-
-    project.javaexec {
-      classpath(paperJarFile.absolutePath)
-      workingDir(minecraftServerDirectory)
-
-      val allServerArguments = mutableListOf<String>()
-      allServerArguments.addAll(additionalServerArguments)
-      if (disableServerGui) {
-        allServerArguments.add("nogui")
-      }
-
-      args(allServerArguments)
-      mainClass.set(mainClassName)
-    }
+    return project.file(concrete.minecraftServerPath.get())
   }
 
-  private fun readMainClass(file: File): String = JarFile(file).use { jar ->
-    jar.manifest.mainAttributes.getValue("Main-Class")!!
-  }
+  override fun getServerJarName(): String = "paper.jar"
 }

src/main/kotlin/gay/pizza/foundation/concrete/SetupLocalMinecraftServer.kt

@@ -0,0 +1,12 @@
+package gay.pizza.foundation.concrete
+
+import org.gradle.api.tasks.Internal
+import java.io.File
+
+open class SetupLocalMinecraftServer : SetupMinecraftServer() {
+  @Internal
+  lateinit var minecraftServerDirectory: File
+
+  @Internal
+  override fun getServerDirectory(): File = minecraftServerDirectory
+}

src/main/kotlin/gay/pizza/foundation/concrete/SetupMinecraftServer.kt

@@ -0,0 +1,47 @@
+package gay.pizza.foundation.concrete
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.tasks.TaskAction
+import org.gradle.kotlin.dsl.getByType
+import java.io.File
+import java.nio.file.Files
+import java.util.*
+
+abstract class SetupMinecraftServer : DefaultTask() {
+  init {
+    outputs.upToDateWhen { false }
+  }
+
+  @TaskAction
+  fun setupMinecraftAction() {
+    val minecraftServerDirectory = getServerDirectory()
+    if (!minecraftServerDirectory.exists()) {
+      minecraftServerDirectory.mkdirs()
+    }
+
+    val serverPluginsDirectory = minecraftServerDirectory.resolve("plugins")
+
+    if (!serverPluginsDirectory.exists()) {
+      serverPluginsDirectory.mkdirs()
+    }
+
+    for (project in project.findPluginProjects()) {
+      val task = project.shadowJarTask!!
+      val pluginJarFile = task.outputs.files.first()
+      val pluginLinkFile = serverPluginsDirectory.resolve("${project.name}.jar")
+      pluginLinkFile.delete()
+      Files.createSymbolicLink(pluginLinkFile.toPath(), pluginJarFile.toPath())
+    }
+
+    val concrete = project.extensions.getByType<ConcreteExtension>()
+    if (concrete.acceptServerEula.isPresent && concrete.acceptServerEula.get()) {
+      val writer = minecraftServerDirectory.resolve("eula.txt").bufferedWriter()
+      val properties = Properties()
+      properties.setProperty("eula", "true")
+      properties.store(writer, "Written by Concrete")
+      writer.close()
+    }
+  }
+
+  abstract fun getServerDirectory(): File
+}

src/main/kotlin/gay/pizza/foundation/concrete/SetupPaperServer.kt

@@ -1,6 +1,5 @@
 package gay.pizza.foundation.concrete
 
-import org.gradle.api.DefaultTask
 import org.gradle.api.tasks.Input
 import org.gradle.api.tasks.TaskAction
 import org.gradle.api.tasks.options.Option
@@ -9,7 +8,7 @@ import java.io.File
 import java.nio.file.Files
 import java.util.Properties
 
-open class SetupPaperServer : DefaultTask() {
+open class SetupPaperServer : SetupMinecraftServer() {
   init {
     outputs.upToDateWhen { false }
   }
@@ -21,40 +20,13 @@ open class SetupPaperServer : DefaultTask() {
   private val paperVersionClient = PaperVersionClient()
 
   @TaskAction
-  fun downloadPaperTask() {
+  fun setupPaperServer() {
     val concrete = project.extensions.getByType<ConcreteExtension>()
-    val minecraftServerDirectory = project.file(concrete.minecraftServerPath.get())
-
-    if (!minecraftServerDirectory.exists()) {
-      minecraftServerDirectory.mkdirs()
-    }
-
-    val paperJarFile = project.file("${concrete.minecraftServerPath.get()}/paper.jar")
+    val minecraftServerDirectory = getServerDirectory()
+    val paperJarFile = project.file("${minecraftServerDirectory}/paper.jar")
     if (!paperJarFile.exists() || shouldUpdatePaperServer) {
       downloadLatestBuild(concrete.paperServerVersionGroup.get(), paperJarFile)
     }
-
-    val paperPluginsDirectory = minecraftServerDirectory.resolve("plugins")
-
-    if (!paperPluginsDirectory.exists()) {
-      paperPluginsDirectory.mkdirs()
-    }
-
-    for (project in project.findPluginProjects()) {
-      val task = project.shadowJarTask!!
-      val pluginJarFile = task.outputs.files.first()
-      val pluginLinkFile = paperPluginsDirectory.resolve("${project.name}.jar")
-      pluginLinkFile.delete()
-      Files.createSymbolicLink(pluginLinkFile.toPath(), pluginJarFile.toPath())
-    }
-
-    if (concrete.acceptServerEula.isPresent && concrete.acceptServerEula.get()) {
-      val writer = minecraftServerDirectory.resolve("eula.txt").bufferedWriter()
-      val properties = Properties()
-      properties.setProperty("eula", "true")
-      properties.store(writer, "Written by Concrete")
-      writer.close()
-    }
   }
 
   private fun downloadLatestBuild(paperVersionGroup: String, paperJarFile: File) {
@@ -77,4 +49,9 @@ open class SetupPaperServer : DefaultTask() {
       logger.lifecycle("Paper Server ${build.version} build ${build.build} is up-to-date")
     }
   }
+
+  override fun getServerDirectory(): File {
+    val concrete = project.extensions.getByType<ConcreteExtension>()
+    return project.file(concrete.minecraftServerPath.get())
+  }
 }