/*******************************************************************************
* Copyright (c) 2011 GitHub Inc.
* 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:
* Kevin Sawicki (GitHub Inc.) - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.github.ui.gist;
import java.io.File;
import java.io.IOException;
import java.net.URISyntaxException;
import java.text.MessageFormat;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.HandlerEvent;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.IWorkspaceRunnable;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.egit.core.RepositoryUtil;
import org.eclipse.egit.core.op.CloneOperation;
import org.eclipse.egit.core.op.CloneOperation.PostCloneTask;
import org.eclipse.egit.core.op.ConnectProviderOperation;
import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.UIPreferences;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.URIish;
import org.eclipse.mylyn.internal.github.core.gist.GistAttribute;
import org.eclipse.mylyn.internal.github.ui.TaskDataHandler;
import org.eclipse.mylyn.tasks.core.data.TaskData;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.HandlerUtil;
/**
* Clone Gist handler class.
*/
public class CloneGistHandler extends TaskDataHandler {
/**
* Get gist name for task data used to create projects and Git repositories
*
* @param data
* @return name
*/
public static String getGistName(TaskData data) {
return "gist-" + data.getTaskId(); //$NON-NLS-1$
}
private static IWorkspaceRoot getWorkspaceRoot() {
return ResourcesPlugin.getWorkspace().getRoot();
}
private static RepositoryUtil getRepoUtil() {
return org.eclipse.egit.core.Activator.getDefault().getRepositoryUtil();
}
/**
* ID
*/
public static final String ID = "org.eclipse.mylyn.github.ui.command.cloneGist"; //$NON-NLS-1$
@Override
public boolean isEnabled(TaskData data) {
String id = getGistName(data);
return !getWorkspaceRoot().getProject(id).exists()
&& !getRepoUtil().getConfiguredRepositories().contains(id);
}
private File getParentDirectory() {
String destinationDir = RepositoryUtil.getDefaultRepositoryDir();
File parentDir = new File(destinationDir);
if (!parentDir.exists() || !parentDir.isDirectory())
parentDir = ResourcesPlugin.getWorkspace().getRoot()
.getRawLocation().toFile();
return parentDir;
}
private void createProject(final File workDir, final String name,
final Repository repository, IProgressMonitor monitor)
throws CoreException {
IProjectDescription description = null;
String projectName = null;
File projectFile = new File(workDir, ".project"); //$NON-NLS-1$
if (projectFile.exists()) {
description = ResourcesPlugin.getWorkspace()
.loadProjectDescription(
Path.fromOSString(projectFile.getAbsolutePath()));
projectName = description.getName();
} else {
description = ResourcesPlugin.getWorkspace().newProjectDescription(
name);
description
.setLocation(Path.fromOSString(workDir.getAbsolutePath()));
projectName = name;
}
monitor.setTaskName(Messages.CloneGistHandler_TaskCreatingProject);
IProject project = ResourcesPlugin.getWorkspace().getRoot()
.getProject(projectName);
project.create(description, monitor);
project.open(IResource.BACKGROUND_REFRESH, monitor);
monitor.setTaskName(Messages.CloneGistHandler_TaskConnectingProject);
new ConnectProviderOperation(project, repository.getDirectory())
.execute(monitor);
}
private CloneOperation createCloneOperation(TaskData data, String name)
throws IOException, URISyntaxException {
String pullUrl = data.getRoot()
.getAttribute(GistAttribute.CLONE_URL.getMetadata().getId())
.getValue();
URIish uri = new URIish(pullUrl);
int timeout = Activator.getDefault().getPreferenceStore()
.getInt(UIPreferences.REMOTE_CONNECTION_TIMEOUT);
final File workDir = new File(getParentDirectory(), name);
if (getRepoUtil().getConfiguredRepositories().contains(
new File(workDir, Constants.DOT_GIT).getAbsolutePath()))
throw new IOException(MessageFormat.format(
Messages.CloneGistHandler_ErrorRepoExists, name));
return new CloneOperation(uri, true, null, workDir, Constants.R_HEADS
+ Constants.MASTER, Constants.DEFAULT_REMOTE_NAME, timeout);
}
private Job createCloneJob(final ExecutionEvent event, final TaskData data) {
Job job = new Job(Messages.CloneGistHandler_TaskCloning) {
protected IStatus run(IProgressMonitor monitor) {
try {
final String name = getGistName(data);
CloneOperation operation = createCloneOperation(data, name);
operation.addPostCloneTask(new PostCloneTask() {
public void execute(Repository repository,
IProgressMonitor monitor) throws CoreException {
if (monitor.isCanceled())
return;
monitor.setTaskName(Messages.CloneGistHandler_TaskRegisteringRepository);
getRepoUtil().addConfiguredRepository(
repository.getDirectory());
}
});
operation.addPostCloneTask(new PostCloneTask() {
public void execute(final Repository repository,
IProgressMonitor monitor) throws CoreException {
IWorkspaceRunnable runnable = new IWorkspaceRunnable() {
public void run(IProgressMonitor monitor)
throws CoreException {
if (monitor.isCanceled())
return;
createProject(repository.getDirectory()
.getParentFile(), name, repository,
monitor);
}
};
ResourcesPlugin.getWorkspace().run(runnable,
monitor);
}
});
operation.run(monitor);
} catch (Exception e) {
displayError(event, e);
Activator.logError("Error cloning gist", e); //$NON-NLS-1$
} finally {
fireHandlerChanged(new HandlerEvent(CloneGistHandler.this,
true, false));
}
return Status.OK_STATUS;
}
};
return job;
}
private void displayError(final ExecutionEvent event, Exception exception) {
final Throwable cause = exception.getCause() != null ? exception
.getCause() : exception;
PlatformUI.getWorkbench().getDisplay().syncExec(new Runnable() {
public void run() {
ErrorDialog.openError(HandlerUtil.getActiveShell(event),
Messages.CloneGistHandler_ErrorTitle,
Messages.CloneGistHandler_ErrorMessage, Activator
.createErrorStatus(cause.getLocalizedMessage(),
cause));
}
});
}
/**
* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
public Object execute(ExecutionEvent event) throws ExecutionException {
TaskData data = getTaskData(event);
if (data != null)
schedule(createCloneJob(event, data), event);
return null;
}
}