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/*******************************************************************************
* Copyright (C) 2009, Robin Rosenberg
* Copyright (C) 2009, Mykola Nikishov <mn@mn.com.ua>
*
* 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
*******************************************************************************/
package org.eclipse.egit.ui.internal.sharing;
import java.io.File;
import java.io.IOException;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.egit.core.Activator;
import org.eclipse.egit.core.project.RepositoryFinder;
import org.eclipse.egit.core.project.RepositoryMapping;
import org.eclipse.egit.ui.UIIcons;
import org.eclipse.egit.ui.UIText;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeColumn;
import org.eclipse.swt.widgets.TreeItem;
/**
* Wizard page for connecting projects to Git repositories.
*/
class ExistingOrNewPage extends WizardPage {
private final SharingWizard myWizard;
private Button button;
private Tree tree;
private Text repositoryToCreate;
private IPath minumumPath;
private Text dotGitSegment;
ExistingOrNewPage(SharingWizard w) {
super(ExistingOrNewPage.class.getName());
setTitle(UIText.ExistingOrNewPage_title);
setDescription(UIText.ExistingOrNewPage_description);
setImageDescriptor(UIIcons.WIZBAN_CONNECT_REPO);
this.myWizard = w;
}
public void createControl(Composite parent) {
Group g = new Group(parent, SWT.NONE);
g.setLayout(new GridLayout(3,false));
g.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());
tree = new Tree(g, SWT.BORDER|SWT.MULTI|SWT.FULL_SELECTION);
tree.setHeaderVisible(true);
tree.setLayout(new GridLayout());
tree.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).span(3,1).create());
tree.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
TreeItem t = (TreeItem) e.item;
for(TreeItem ti : t.getItems())
tree.deselect(ti);
if (t.getParentItem() != null) {
tree.deselect(t.getParentItem());
for(TreeItem ti : t.getParentItem().getItems())
if (ti != t)
tree.deselect(ti);
}
Set<IProject> projects = new HashSet<IProject>();
for (TreeItem treeItem : tree.getSelection()) {
if (treeItem.getData() == null && treeItem.getParentItem() != null) {
treeItem = treeItem.getParentItem();
}
final IProject project = (IProject) treeItem.getData();
if (projects.contains(project))
tree.deselect(treeItem);
projects.add(project);
}
}
});
TreeColumn c1 = new TreeColumn(tree,SWT.NONE);
c1.setText(UIText.ExistingOrNewPage_HeaderProject);
c1.setWidth(100);
TreeColumn c2 = new TreeColumn(tree,SWT.NONE);
c2.setText(UIText.ExistingOrNewPage_HeaderPath);
c2.setWidth(400);
TreeColumn c3 = new TreeColumn(tree,SWT.NONE);
c3.setText(UIText.ExistingOrNewPage_HeaderRepository);
c3.setWidth(200);
for (IProject project : myWizard.projects) {
TreeItem treeItem = new TreeItem(tree, SWT.NONE);
treeItem.setData(project);
treeItem.setText(0, project.getName());
treeItem.setText(1, project.getLocation().toOSString());
RepositoryFinder repositoryFinder = new RepositoryFinder(project);
Collection<RepositoryMapping> mappings;
try {
mappings = repositoryFinder.find(new NullProgressMonitor());
Iterator<RepositoryMapping> mi = mappings.iterator();
RepositoryMapping m = mi.hasNext() ? mi.next() : null;
if (m == null) {
// no mapping found, enable repository creation
treeItem.setText(2, ""); //$NON-NLS-1$
} else {
// at least one mapping found
fillTreeItemWithGitDirectory(m, treeItem, false);
}
while (mi.hasNext()) { // fill in additional mappings
m = mi.next();
TreeItem treeItem2 = new TreeItem(treeItem, SWT.NONE);
treeItem2.setData(m.getContainer().getProject());
fillTreeItemWithGitDirectory(m, treeItem2, true);
}
} catch (CoreException e) {
TreeItem treeItem2 = new TreeItem(treeItem, SWT.BOLD|SWT.ITALIC);
treeItem2.setText(e.getMessage());
}
}
button = new Button(g, SWT.PUSH);
button.setLayoutData(GridDataFactory.fillDefaults().create());
button.setText(UIText.ExistingOrNewPage_CreateButton);
button.addSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
File gitDir = new File(repositoryToCreate.getText(),Constants.DOT_GIT);
try {
Repository repository = new Repository(gitDir);
repository.create();
for (IProject project : getProjects().keySet()) {
// If we don't refresh the project directories right
// now we won't later know that a .git directory
// exists within it and we won't mark the .git
// directory as a team-private member. Failure
// to do so might allow someone to delete
// the .git directory without us stopping them.
// (Half lie, we should optimize so we do not
// refresh when the .git is not within the project)
//
if (!gitDir.toString().contains("..")) //$NON-NLS-1$
project.refreshLocal(IResource.DEPTH_ONE,
new NullProgressMonitor());
}
} catch (IOException e1) {
MessageDialog.openError(getShell(), UIText.ExistingOrNewPage_ErrorFailedToCreateRepository, gitDir.toString() + ":\n" + e1.getMessage()); //$NON-NLS-1$
Activator.logError("Failed to create repository at " + gitDir, e1); //$NON-NLS-1$
} catch (CoreException e2) {
Activator.logError(UIText.ExistingOrNewPage_ErrorFailedToRefreshRepository + gitDir, e2);
}
for (TreeItem ti : tree.getSelection()) {
ti.setText(2, gitDir.toString());
}
updateCreateOptions();
getContainer().updateButtons();
}
public void widgetDefaultSelected(SelectionEvent e) {
}
});
repositoryToCreate = new Text(g, SWT.SINGLE | SWT.BORDER);
repositoryToCreate.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).span(1,1).create());
repositoryToCreate.addListener(SWT.Modify, new Listener() {
public void handleEvent(Event e) {
if (e.text == null)
return;
IPath fromOSString = Path.fromOSString(e.text);
button.setEnabled(minumumPath
.matchingFirstSegments(fromOSString) == fromOSString
.segmentCount());
}
});
dotGitSegment = new Text(g ,SWT.NONE);
dotGitSegment.setEnabled(false);
dotGitSegment.setEditable(false);
dotGitSegment.setText(File.separatorChar + Constants.DOT_GIT);
dotGitSegment.setLayoutData(GridDataFactory.fillDefaults().align(SWT.LEFT, SWT.CENTER).create());
tree.addSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
updateCreateOptions();
}
public void widgetDefaultSelected(SelectionEvent e) {
// Empty
}
});
updateCreateOptions();
setControl(g);
}
private void fillTreeItemWithGitDirectory(RepositoryMapping m, TreeItem treeItem2, boolean isAlternative) {
if (m.getGitDir() == null)
treeItem2.setText(2, UIText.ExistingOrNewPage_SymbolicValueEmptyMapping);
else {
IPath container = m.getContainerPath();
if (!container.isEmpty())
container = container.addTrailingSeparator();
IPath relativePath = container.append(m.getGitDir());
if (isAlternative)
treeItem2.setText(0, relativePath.removeLastSegments(1).addTrailingSeparator().toString());
treeItem2.setText(2, relativePath.toString());
}
}
private void updateCreateOptions() {
minumumPath = null;
IPath p = null;
for (TreeItem ti : tree.getSelection()) {
String path = ti.getText(2);
if (!path.equals("")) { //$NON-NLS-1$
p = null;
break;
}
String gitDirParentCandidate = ti.getText(1);
IPath thisPath = Path.fromOSString(gitDirParentCandidate);
if (p == null)
p = thisPath;
else {
int n = p.matchingFirstSegments(thisPath);
p = p.removeLastSegments(p.segmentCount() - n);
}
}
minumumPath = p;
if (p != null) {
repositoryToCreate.setText(p.toOSString());
} else {
repositoryToCreate.setText(""); //$NON-NLS-1$
}
button.setEnabled(p != null);
repositoryToCreate.setEnabled(p != null);
dotGitSegment.setEnabled(p != null);
getContainer().updateButtons();
}
@Override
public boolean isPageComplete() {
if (tree.getSelectionCount() == 0)
return false;
for (TreeItem ti : tree.getSelection()) {
String path = ti.getText(2);
if (path.equals("")) { //$NON-NLS-1$
return false;
}
}
return true;
}
/**
* @return map between project and repository root directory (converted to an
* absolute path) for all projects selected by user
*/
public Map<IProject, File> getProjects() {
final TreeItem[] selection = tree.getSelection();
Map<IProject, File> ret = new HashMap<IProject, File>(selection.length);
for (int i = 0; i < selection.length; ++i) {
TreeItem treeItem = selection[i];
while (treeItem.getData() == null && treeItem.getParentItem() != null) {
treeItem = treeItem.getParentItem();
}
final IProject project = (IProject) treeItem.getData();
final IPath selectedRepo = Path.fromOSString(treeItem.getText(2));
IPath localPathToRepo = selectedRepo;
if (!selectedRepo.isAbsolute()) {
localPathToRepo = project.getLocation().append(selectedRepo);
}
ret.put(project, localPathToRepo.toFile());
}
return ret;
}
}
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