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/*****************************************************************************
 * Copyright (c) 2009 Ken Gilmer
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Ken Gilmer - initial API and implementation
 *     Jessica Zhang - extend to support HOB build
 *******************************************************************************/
package org.yocto.bc.ui.builder;

import java.util.ArrayList;

import org.eclipse.core.resources.ICommand;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.resources.IProjectNature;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.ILaunchConfigurationType;
import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
import org.eclipse.debug.core.ILaunchManager;


public class BitbakeCommanderNature implements IProjectNature {

	/**
	 * ID of this project nature
	 */
	public static final String NATURE_ID = "org.yocto.bc.ui.builder.BitbakeCommanderNature";
	public static final String BUILD_DIR_KEY = "org.yocto.bc.ui.builder.BitbakeCommander.BuildDir";
	private IProject project;

	public static void launchHob(IProject project, String buildDir) {
		try {
			ILaunchManager lManager = DebugPlugin.getDefault().getLaunchManager();
			ILaunchConfigurationType configType = 
				lManager.getLaunchConfigurationType("org.eclipse.ui.externaltools.ProgramLaunchConfigurationType");
			ILaunchConfigurationWorkingCopy w_copy = configType.newInstance(null, "hob");
			ArrayList<String> listValue = new ArrayList<String>();
			listValue.add(new String("org.eclipse.ui.externaltools.launchGroup"));
			w_copy.setAttribute("org.eclipse.debug.ui.favoriteGroups", listValue);		
			w_copy.setAttribute("org.eclipse.ui.externaltools.ATTR_LOCATION", "/usr/bin/xterm");

			String init_script = project.getLocation().toString() + "/oe-init-build-env ";
			String argument = "-e \"source " + init_script + buildDir + ";hob";// + ";bash\"";

			w_copy.setAttribute("org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS", argument);
			w_copy.launch(ILaunchManager.RUN_MODE, null);
			
		} catch (CoreException e) {
			System.out.println(e.getMessage());
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.resources.IProjectNature#configure()
	 */
	public void configure() throws CoreException {
		IProjectDescription desc = project.getDescription();
		ICommand[] commands = desc.getBuildSpec();

		for (int i = 0; i < commands.length; ++i) {
			if (commands[i].getBuilderName().equals(BitbakeBuilder.BUILDER_ID)) {
				return;
			}
		}

		ICommand[] newCommands = new ICommand[commands.length + 1];
		System.arraycopy(commands, 0, newCommands, 0, commands.length);
		ICommand command = desc.newCommand();
		command.setBuilderName(BitbakeBuilder.BUILDER_ID);
		newCommands[newCommands.length - 1] = command;
		desc.setBuildSpec(newCommands);
		project.setDescription(desc, null);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.resources.IProjectNature#deconfigure()
	 */
	public void deconfigure() throws CoreException {
		IProjectDescription description = getProject().getDescription();
		ICommand[] commands = description.getBuildSpec();
		for (int i = 0; i < commands.length; ++i) {
			if (commands[i].getBuilderName().equals(BitbakeBuilder.BUILDER_ID)) {
				ICommand[] newCommands = new ICommand[commands.length - 1];
				System.arraycopy(commands, 0, newCommands, 0, i);
				System.arraycopy(commands, i + 1, newCommands, i,
						commands.length - i - 1);
				description.setBuildSpec(newCommands);
				return;
			}
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.resources.IProjectNature#getProject()
	 */
	public IProject getProject() {
		return project;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.resources.IProjectNature#setProject(org.eclipse.core.resources.IProject)
	 */
	public void setProject(IProject project) {
		this.project = project;
	}
}