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/*******************************************************************************
* Copyright (C) 2007, Robin Rosenberg <robin.rosenberg@dewire.com>
* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
* Copyright (C) 2008, Google 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
*******************************************************************************/
package org.eclipse.egit.core.op;
import java.io.IOException;
import java.util.Collection;
import java.util.IdentityHashMap;
import java.util.Map;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.egit.core.Activator;
import org.eclipse.egit.core.CoreText;
import org.eclipse.egit.core.project.GitProjectData;
import org.eclipse.egit.core.project.RepositoryMapping;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheEntry;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.osgi.util.NLS;
/**
* Tell JGit to ignore changes in selected files
*/
public class AssumeUnchangedOperation implements IEGitOperation {
private final Collection rsrcList;
private final IdentityHashMap<Repository, DirCache> caches;
private final IdentityHashMap<RepositoryMapping, Object> mappings;
/**
* Create a new operation to ignore changes in tracked files
*
* @param rsrcs
* collection of {@link IResource}s which should be ignored when
* looking for changes or committing.
*/
public AssumeUnchangedOperation(final Collection rsrcs) {
rsrcList = rsrcs;
caches = new IdentityHashMap<Repository, DirCache>();
mappings = new IdentityHashMap<RepositoryMapping, Object>();
}
/* (non-Javadoc)
* @see org.eclipse.egit.core.op.IEGitOperation#execute(org.eclipse.core.runtime.IProgressMonitor)
*/
public void execute(IProgressMonitor m) throws CoreException {
if (m == null)
m = new NullProgressMonitor();
caches.clear();
mappings.clear();
m.beginTask(CoreText.AssumeUnchangedOperation_adding,
rsrcList.size() * 200);
try {
for (Object obj : rsrcList) {
obj = ((IAdaptable) obj).getAdapter(IResource.class);
if (obj instanceof IResource)
assumeValid((IResource) obj);
m.worked(200);
}
for (Map.Entry<Repository, DirCache> e : caches.entrySet()) {
final Repository db = e.getKey();
final DirCache editor = e.getValue();
m.setTaskName(NLS.bind(
CoreText.AssumeUnchangedOperation_writingIndex, db
.getDirectory()));
editor.write();
editor.commit();
}
} catch (RuntimeException e) {
throw new CoreException(Activator.error(CoreText.UntrackOperation_failed, e));
} catch (IOException e) {
throw new CoreException(Activator.error(CoreText.UntrackOperation_failed, e));
} finally {
for (final RepositoryMapping rm : mappings.keySet())
rm.fireRepositoryChanged();
caches.clear();
mappings.clear();
m.done();
}
}
private void assumeValid(final IResource resource) throws CoreException {
final IProject proj = resource.getProject();
final GitProjectData pd = GitProjectData.get(proj);
if (pd == null)
return;
final RepositoryMapping rm = pd.getRepositoryMapping(resource);
if (rm == null)
return;
final Repository db = rm.getRepository();
DirCache cache = caches.get(db);
if (cache == null) {
try {
cache = DirCache.lock(db);
} catch (IOException err) {
throw new CoreException(Activator.error(CoreText.UntrackOperation_failed, err));
}
caches.put(db, cache);
mappings.put(rm, rm);
}
final String path = rm.getRepoRelativePath(resource);
if (resource instanceof IContainer) {
for (final DirCacheEntry ent : cache.getEntriesWithin(path))
ent.setAssumeValid(true);
} else {
final DirCacheEntry ent = cache.getEntry(path);
if (ent != null)
ent.setAssumeValid(true);
}
}
}
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