package org.neo4j.util.shell.apps.extra;
import org.neo4j.util.shell.AbstractApp;
import org.neo4j.util.shell.AppCommandParser;
import org.neo4j.util.shell.Output;
import org.neo4j.util.shell.Session;
import org.neo4j.util.shell.ShellException;
/**
* A way to execute groovy scripts from the shell. It doesn't use the groovy
* classes directly, but instead purely via reflections... This gives the
* advantage of not being dependent on groovy at compile-time.
*
* So if the groovy classes is in the classpath at run-time then groovy scripts
* can be executed, otherwise it will say that "Groovy isn't available".
*
* It has the old style script/argument format of:
* sh$ gsh --script1 arg1 arg2 arg3 --script2 arg1 arg2
*
* The paths to look for groovy scripts is decided by the environment variable
* GSH_PATH, also there are some default paths: ".", "script", "src/script".
*/
public class Gsh extends AbstractApp
{
public String execute( AppCommandParser parser, Session session,
Output out ) throws ShellException
{
String line = parser.getLineWithoutCommand();
new GshExecutor().execute( line, session, out );
return null;
}
@Override
public String getDescription()
{
GshExecutor anExecutor = new GshExecutor();
return "Runs groovy scripts. Usage: gsh <groovy script line>\n" +
" Example: gsh --doSomething arg1 \"arg 2\" " +
"--doSomethingElse arg1\n" +
"Where the groovy scripts doSomething.groovy and " +
"doSomethingElse.groovy exists in one of " +
"environment variable\n" + anExecutor.getPathKey() +
" paths (default is " + anExecutor.getDefaultPaths() + ")";
}
}