payara-micro-gradle-plugin.gradle

import org.apache.tools.ant.taskdefs.condition.Os

repositories {
  mavenCentral()
}

class PayaraMicroGradlePlugin implements Plugin<Project> {

  static final String PAYARA_MICRO_VERSION = "5.194"
  static final String TASK_GROUP = "Payara Micro"
  static final String BUNDLE_TASK_NAME = "bundle"
  static final String BUNDLE_TASK_DESCRIPTION = 'Create payara-micro application uber jar: "mvn package payara-micro:bundle".'
  static final String[] BUNDLE_TASK_SHOULD_RUN_AFTER = ["clean", "war"]
  static final String[] BUNDLE_TASK_DEPENDS_ON = ["war"]
  static final String START_TASK_NAME = "start"
  static final String START_TASK_DESCRIPTION = 'Run payara-micro application: "mvn package payara-micro:bundle payara-micro:start".'
  static final String[] START_TASK_SHOULD_RUN_AFTER = ["clean", "war", BUNDLE_TASK_NAME]
  static final String[] START_TASK_DEPENDS_ON = [BUNDLE_TASK_NAME]
  static final String WAR_FILENAME = "ROOT.war"

  void apply(Project project) {

    project.apply(plugin: "war")
    // workaround for context-root: "/"
    project.war.archiveName = WAR_FILENAME
    project.assemble.dependsOn(BUNDLE_TASK_NAME)

    project.configurations {
      payaraMicro
    }
    // 5.183 is broken, uber jar is fixed with 5.184
    project.dependencies {
      payaraMicro "fish.payara.extras:payara-micro:${PAYARA_MICRO_VERSION}" as String
    }

    project.task(type: Exec, BUNDLE_TASK_NAME) {
      group = TASK_GROUP
      description = BUNDLE_TASK_DESCRIPTION
      dependsOn(BUNDLE_TASK_DEPENDS_ON)
      shouldRunAfter(BUNDLE_TASK_SHOULD_RUN_AFTER)
      commandLine(runInShell("${command(project)} --outputUberJar ${outputUberJar(project)}"))
    }

    project.task(type: Exec, START_TASK_NAME) {
      group = TASK_GROUP
      description = START_TASK_DESCRIPTION
      dependsOn(START_TASK_DEPENDS_ON)
      shouldRunAfter(START_TASK_SHOULD_RUN_AFTER)
      commandLine(runInShell("java -jar ${outputUberJar(project)}"))
    }
  }

  static String command(Project project) {
    String payaraMicroJar = project.configurations.payaraMicro.asPath
    "java -jar ${payaraMicroJar} --autoBindHttp --clusterName app --deploy ${project.war.archivePath}"
  }

  static String outputUberJar(Project project) {
    "${project.buildDir}/${project.name}-${project.version}-microbundle.jar"
  }

  static String[] runInShell(String... command) {
    String[] shell = Os.isFamily(Os.FAMILY_WINDOWS) ? ["cmd", "/c"] : ["sh", "-c"]
    shell + command
  }
}

// Apply the plugin
apply plugin: PayaraMicroGradlePlugin