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/*******************************************************************************
* Copyright (C) 2011-2012, Tomasz Zarna <Tomasz.Zarna@pl.ibm.com>
*
* 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.patch;
import static org.eclipse.jgit.lib.Repository.stripWorkDir;
import java.util.Collection;
import java.util.Set;
import org.eclipse.core.resources.IResource;
import org.eclipse.egit.core.internal.indexdiff.IndexDiffCache;
import org.eclipse.egit.core.internal.indexdiff.IndexDiffData;
import org.eclipse.egit.core.op.CreatePatchOperation;
import org.eclipse.egit.ui.UIText;
import org.eclipse.egit.ui.internal.history.GitCreatePatchWizard;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PlatformUI;
/**
* The UI wrapper for {@link CreatePatchOperation}
*/
public class PatchOperationUI {
private IWorkbenchPart part;
private Repository repository;
private RevCommit commit;
private Collection<? extends IResource> resources;
private PatchOperationUI(IWorkbenchPart part, Repository repo) {
this.part = part;
this.repository = repo;
}
private PatchOperationUI(IWorkbenchPart part, Repository repo,
RevCommit commit) {
this(part, repo);
this.commit = commit;
}
private PatchOperationUI(IWorkbenchPart part, Repository repo,
Collection<? extends IResource> resources) {
this(part, repo);
this.resources = resources;
}
/**
* Create an operation for creating a patch for a specific commit.
*
* @param part
* the part
* @param commit
* a commit
* @param repo
* the repository
* @return the {@link PatchOperationUI}
*/
public static PatchOperationUI createPatch(IWorkbenchPart part,
RevCommit commit, Repository repo) {
return new PatchOperationUI(part, repo, commit);
}
/**
* Create an operation for creating a patch for change made relative to the
* index.
*
* @param part
* the part
* @param repo
* the repository
* @param resources
* collection of {@link IResource}s
* @return the {@link PatchOperationUI}
*/
public static PatchOperationUI createPatch(IWorkbenchPart part,
Repository repo, Collection<? extends IResource> resources) {
return new PatchOperationUI(null, repo, resources);
}
/**
* Starts the operation asynchronously
*/
public void start() {
if (commit != null) {
GitCreatePatchWizard.run(getShell(), commit, repository, null);
return;
} else
if (isWorkingTreeClean()) {
MessageDialog.openInformation(getShell(),
UIText.GitCreatePatchAction_cannotCreatePatch,
UIText.GitCreatePatchAction_workingTreeClean);
return;
}
GitCreatePatchWizard.run(getShell(), null, repository, resources);
}
private boolean isWorkingTreeClean() {
IndexDiffCache diffCache = org.eclipse.egit.core.Activator.getDefault()
.getIndexDiffCache();
if (diffCache != null) {
IndexDiffData diffData = diffCache.getIndexDiffCacheEntry(
repository).getIndexDiff();
if (diffData != null) {
Set<String> modified = diffData.getModified();
Set<String> untracked = diffData.getUntracked();
Set<String> missing = diffData.getMissing();
for (IResource resource : resources) {
String repoRelativePath = makeRepoRelative(resource);
if (containsPrefix(modified, repoRelativePath))
return false;
if (containsPrefix(untracked, repoRelativePath))
return false;
if (containsPrefix(missing, repoRelativePath))
return false;
}
}
}
return true;
}
private String makeRepoRelative(IResource res) {
return stripWorkDir(repository.getWorkTree(), res.getLocation()
.toFile());
}
private boolean containsPrefix(Set<String> collection, String prefix) {
for (String path : collection)
if (path.startsWith(prefix))
return true;
return false;
}
private Shell getShell() {
return getShell(part);
}
private static Shell getShell(IWorkbenchPart part) {
if (part != null)
return part.getSite().getShell();
return PlatformUI.getWorkbench().getDisplay().getActiveShell();
}
}
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