rm.java

/**
 * $Id: $
 * $Date: $
 *
 */

package org.xmlsh.posix.commands;

import java.io.File;
import java.io.IOException;
import java.util.List;

import org.xmlsh.core.Options;
import org.xmlsh.core.XCommand;
import org.xmlsh.core.XValue;

public class rm extends XCommand {

	private File getFile( XValue arg , boolean bForce ) throws IOException
	{
		try {
			File f = getFile(arg);
			return f;
		} catch( IOException e )
		{
			// Ignore IO exceptions 
			if( ! bForce )
				throw e ;

		}
		return null ;
	}


	@Override
	public int run(List<XValue> args) throws Exception {

		Options opts = new Options( "f,r,rf" );
		opts.parse(args);
		args = opts.getRemainingArgs();

		boolean bForce = opts.hasOpt("f") || opts.hasOpt("rf");
		boolean bRecurse = opts.hasOpt("r") || opts.hasOpt("rf");

		for( XValue arg : args ){
			File f = getFile( arg , bForce );
			if( f != null )
				delete(f , bForce , bRecurse );

		}




		return 0;
	}

	private void delete(File f, boolean force, boolean recurse) {

		if( f.exists() ){
			if( f.isDirectory() ){
				if(  ! recurse ){
					printErr("Is a directory: " + f.getPath() );
					return ;
				}
				File files[] = f.listFiles();
				if( files == null ){
					printErr("Cannot recurse directory: " + f.getPath() );	

				}
				else 
					for( File subf : files ){
						delete( subf , force ,recurse);

					}
			}



			if( ! force && ! f.canWrite() ){
				printErr("File is not writable: " + f.getPath());
				return;
			}


			if( ! f.delete() ){
				printErr("Error deleting file: " + f.getPath());

			}

		}

		else
			if( ! force )
				printErr("File does not exist: " + f.getPath() );
	}

}



//
//
//Copyright (C) 2008-2014    David A. Lee.
//
//The contents of this file are subject to the "Simplified BSD License" (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.opensource.org/licenses/bsd-license.php 
//
//Software distributed under the License is distributed on an "AS IS" basis,
//WITHOUT WARRANTY OF ANY KIND, either express or implied.
//See the License for the specific language governing rights and limitations under the License.
//
//The Original Code is: all this file.
//
//The Initial Developer of the Original Code is David A. Lee
//
//Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
//Contributor(s): none.
//