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/******************************************************************************
* Copyright (c) 2012, 2016 GitHub Inc. and others
* 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.egit.ui.internal.history.command;
import java.io.File;
import java.io.IOException;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IFile;
import org.eclipse.egit.core.internal.job.JobUtil;
import org.eclipse.egit.core.internal.storage.CommitFileRevision;
import org.eclipse.egit.core.project.RepositoryMapping;
import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.JobFamilies;
import org.eclipse.egit.ui.internal.CompareUtils;
import org.eclipse.egit.ui.internal.UIText;
import org.eclipse.egit.ui.internal.blame.BlameOperation;
import org.eclipse.egit.ui.internal.history.GitHistoryPage;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.team.core.history.IFileRevision;
import org.eclipse.ui.handlers.HandlerUtil;
/**
* Handler to blame a path on a selected commit
*/
public class ShowBlameHandler extends AbstractHistoryCommandHandler {
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
GitHistoryPage page = getPage(event);
if (page == null) {
return null;
}
Object input = page.getInputInternal().getSingleItem();
if (input == null) {
return null;
}
Repository repo = getRepository(event);
if (repo == null) {
return null;
}
String path = getPath(repo, page);
if (path == null) {
return null;
}
RevCommit commit = getSelectedCommit(event);
if (commit == null) {
return null;
}
try {
IFileRevision revision = CompareUtils.getFileRevision(path, commit,
repo, null);
if (revision instanceof CommitFileRevision) {
BlameOperation op = new BlameOperation(
(CommitFileRevision) revision,
HandlerUtil.getActiveShell(event),
page.getSite().getPage());
JobUtil.scheduleUserJob(op, UIText.ShowBlameHandler_JobName,
JobFamilies.BLAME);
}
} catch (IOException e) {
Activator.showError(UIText.ShowBlameHandler_errorMessage, e);
}
return null;
}
private String getPath(Repository repo, GitHistoryPage page) {
Object input = page.getInputInternal().getSingleItem();
if (input == null) {
return null;
}
if (input instanceof IFile) {
IFile file = (IFile) input;
RepositoryMapping mapping = RepositoryMapping.getMapping(file);
if (mapping != null) {
return mapping.getRepoRelativePath(file);
}
} else if (input instanceof File) {
return getRepoRelativePath(repo, (File) input);
}
return null;
}
}
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