/**
* Copyright 2013 Huining (Thomas) Feng (tfeng@berkeley.edu)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.bacoder.scmtools.git.internal;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.dircache.DirCacheEntry;
import org.eclipse.jgit.errors.IndexWriteException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectLoader;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.Repository;
import com.bacoder.scmtools.core.InternalRuntimeException;
import com.bacoder.scmtools.git.GitEntry;
import com.bacoder.scmtools.git.GitEntryProcessor;
import com.google.common.collect.Lists;
class CloneAndProcessDirCacheCheckout extends DirCacheCheckout {
private DirCache dirCache;
private String pathPrefix;
private GitEntryProcessor processor;
private Repository repository;
private byte[] submodulesConfig;
public CloneAndProcessDirCacheCheckout(Repository repository, DirCache dirCache,
ObjectId mergeCommitTree, String pathPrefix) throws IOException {
super(repository, dirCache, mergeCommitTree);
this.repository = repository;
this.dirCache = dirCache;
this.pathPrefix = pathPrefix;
}
public byte[] getSubmodulesConfig() {
return submodulesConfig;
}
public void setProcessor(GitEntryProcessor processor) {
this.processor = processor;
}
@Override
protected boolean checkoutEntries() throws IOException {
Map<String, ObjectId> updated = getUpdated();
List<String> paths = Lists.newArrayList(updated.keySet());
Collections.sort(paths);
ObjectReader objectReader = repository.getObjectDatabase().newReader();
try {
for (String path : paths) {
DirCacheEntry entry = dirCache.getEntry(path);
if (FileMode.GITLINK.equals(entry.getRawMode()))
continue;
boolean isSubmoduleConfig = path.equals(Constants.DOT_GIT_MODULES);
ObjectId objectId = updated.get(path);
if (isSubmoduleConfig) {
ObjectLoader loader = objectReader.open(objectId);
byte[] data = loader.getBytes();
submodulesConfig = data;
}
if (processor != null) {
GitEntry gitEntry = new GitEntry(repository, objectId, pathPrefix, path);
try {
processor.process(gitEntry);
} catch (Exception e) {
throw new InternalRuntimeException(e);
}
}
}
// commit the index builder - a new index is persisted
if (!getBuilder().commit())
throw new IndexWriteException();
} finally {
objectReader.release();
}
return true;
}
}