jbang/SlingStarter.java

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

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
 * licenses this file to You under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

//JAVA 11+

//DEPS org.apache.sling:org.apache.sling.feature.launcher:1.2.0
//DEPS commons-cli:commons-cli:1.4
//DEPS org.apache.commons:commons-lang3:3.12.0
//DEPS org.apache.commons:commons-text:1.9
//DEPS org.apache.felix:org.apache.felix.cm.json:1.0.6
//DEPS org.apache.felix:org.apache.felix.converter:1.0.18
//DEPS org.apache.sling:org.apache.sling.commons.johnzon:1.2.14
//DEPS org.apache.sling:org.apache.sling.feature:1.2.30
//DEPS org.apache.sling:org.apache.sling.feature.launcher:1.2.0
//DEPS org.osgi:org.osgi.annotation.versioning:1.1.1
//DEPS org.osgi:org.osgi.util.function:1.0.0
//DEPS org.osgi:osgi.core:7.0.0
//DEPS org.slf4j:slf4j-api:1.7.25
//DEPS org.slf4j:slf4j-simple:1.7.25

import java.util.List;
import java.util.ArrayList;
import org.apache.sling.feature.launcher.impl.Main;

/** Thanks to the JBang catalog found at https://github.com/apache/sling-whiteboard/blob/master/jbang-catalog.json
 *  this can be started using
 * 
 *     jbang start@apache/sling-whiteboard
 * 
 *  After installing JBang from https://www.jbang.dev/
 *
 *  To see additional launcher options, use
 *
 *    jbang start@apache/sling-whiteboard -h
 *
 */
class SlingStarter {

    public static final String SCRIPT_VERSION = "0.2";

    public static void main(String[] args) {

        /* For now only Starter 12 is distributed with this
         * format, so there's no point in using this method's
         * args to switch versions. Later, maybe.
         */
        final int slingVersion = 12;
        final String farURL = String.format(
            "https://repo1.maven.org/maven2/org/apache/sling/org.apache.sling.starter/%d/org.apache.sling.starter-%d-oak_tar_far.far",
            slingVersion,
            slingVersion
        );
        
        System.err.println(String.format("%s V%s : starting Apache Sling %d using the Feature Launcher",
            SlingStarter.class.getSimpleName(), SCRIPT_VERSION, slingVersion
        ));
        System.err.println("The first run of this script is slower, as it downloads the Sling starter feature file and dependencies");
        System.err.println("Starter feature file: " + farURL);

        final List<String> starterArgs = new ArrayList<>();
        starterArgs.add("-f");
        starterArgs.add(farURL);
        for(String arg : args) {
            starterArgs.add(arg);
        }
        final String [] strArgs = starterArgs.stream().toArray(String[]::new);
        Main.main(strArgs);
    }
}