org.snapscript.studio.agent.local.LocalJarProcess Maven / Gradle / Ivy

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Dynamic scripting for the JVM

There is a newer version: 1.4.6

package org.snapscript.studio.agent.local;

import java.util.ArrayList;
import java.util.List;
import java.util.jar.Attributes;
import java.util.jar.Manifest;

import org.snapscript.core.module.Path;
import org.snapscript.studio.agent.cli.CommandLine;
import org.snapscript.studio.agent.cli.CommandLineBuilder;

public class LocalJarProcess {
   
   public static final String MAIN_SCRIPT = "Main-Script";
   
   public static void main(String[] arguments) throws Exception {
      CommandLineBuilder builder = LocalOption.getBuilder();
      CommandLine line = builder.build(arguments);
      LocalCommandLine local = new LocalCommandLine(line);
      Path path = local.getScript();
      
      if(path == null) {
         String[] empty = new String[]{};
         List expanded = new ArrayList();
         Attributes.Name key = new Attributes.Name(MAIN_SCRIPT);
         
         Manifest manifest = LocalManifestReader.readManifest();
         String script = (String)manifest.getMainAttributes().get(key);
         
         for(String argument : arguments) {
            expanded.add(argument);
         }
         String argument = String.format("--%s=%s", LocalOption.SCRIPT.name, script);
         expanded.add(argument);
         arguments = expanded.toArray(empty);
      }
      LocalProcess.main(arguments);
   }
}