JBang Cheat Sheet by linux_china

///usr/bin/env jbang "$0" "$@" ; exit $? 

class Hello { 
    public static void main(String[] args) {
          System.out.println("Hello World!");
    }
}

$ jbang Hello.java
$ jbang --debug Hello.java
$ chmod u+x 
$ ./Hello.java

$ jbang template list
$ jbang init --template=cli helloworld.java

//JAVAC_OPTIONS --enable-preview --release 17
//JAVA_OPTIONS --enable-preview 
//JAVA_OPTIONS -Dserver.port=8081 -D spring.application.name=app1

//SOURCES UserService.java
//SOURCES impl/UserServiceImpl.java

//FILES application.properties
//FILES META-INF/resources/index.html=index.html
//FILES META-INF/resources/jquery.js=https://code.jquery.com/jquery-3.6.0.min.js

Resource import format: //FILES <mountpoint>[=<sourcefile>]

///usr/bin/env jbang "$0" "$@" ; exit $? 

//KOTLIN 1.6.10
//DEPS org.jetbrains.kotlin: kotlin-stdlib-jdk8:1.6.10

public fun main() {
    println("Hello World");
}

///usr/bin/env jbang "$0" "$@" ; exit $? 

//GROOVY 4.0.0

println("Hello World");

///usr/bin/env jbang "$0" "$@" ; exit $?
//DEPS com.github.javafaker:javafaker:1.0.2

import com.github.javafaker.Faker;

Faker faker = new Faker();

$ jbang --native Hello.java

// https://github.com/linux-china/jbang-spring-native
// https://github.com/GoodforGod/graalvm-hint

//DEPS org.projectlombok:lombok:1.18.22
//DEPS org.apache.commons:commons-lang3:3.12.0

//DEPS org.springframework.boot:spring-boot-dependencies:2.6.3@pom
//DEPS org.springframework.boot:spring-boot-starter

//DEPS io.quarkus:quarkus-bom:2.7.1.Final@pom
//DEPS io.quarkus:quarkus-resteasy

//REPOS mavencentral,spring-release=https://repo.spring.io/release
//REPOS mavencentral,spring-milestone=https://repo.spring.io/milestone

Well-known repositories:

* mavencentral - https://repo1.maven.org/maven2/
* google - https://maven.google.com/
* jitpack - https://jitpack.io/

$ jbang alias add --name hello https://github.com/jbangdev/jbang-examples/blob/HEAD/examples/helloworld.java
$ jbang hello 
$ jbang alias list
$ jbang alias list --show-origin

{
  "aliases": {
    "hello": {
      "script-ref": "hello.java",
      "description": "Script that says hello back for each argument"
    }
}

$ jbang catalog add --name acme acme
$ jbang catalog add --name mycatalog acme/mycatalog
$ jbang catalog list

$ jbang app install <scriptRef> 
$ $ jbang app install --name app1 <scriptRef> 
$ jbang app list
$ jbang app uninstall <name>