// Copyright (C) 2009 The Android Open Source Project
//
// 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.google.gerrit.server.mail;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.server.patch.PatchList;
import com.google.gerrit.server.patch.PatchListNotAvailableException;
import com.google.gerrit.server.ssh.SshInfo;
import com.jcraft.jsch.HostKey;
import org.eclipse.jgit.diff.DiffFormatter;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.util.RawParseUtils;
import org.eclipse.jgit.util.TemporaryBuffer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/** Sends an email alerting a user to a new change for them to review. */
public abstract class NewChangeSender extends ChangeEmail {
private static final Logger log =
LoggerFactory.getLogger(NewChangeSender.class);
private final SshInfo sshInfo;
private final Set<Account.Id> reviewers = new HashSet<Account.Id>();
private final Set<Account.Id> extraCC = new HashSet<Account.Id>();
protected NewChangeSender(EmailArguments ea, String anonymousCowardName,
SshInfo sshInfo, Change c) {
super(ea, anonymousCowardName, c, "newchange");
this.sshInfo = sshInfo;
}
public void addReviewers(final Collection<Account.Id> cc) {
reviewers.addAll(cc);
}
public void addExtraCC(final Collection<Account.Id> cc) {
extraCC.addAll(cc);
}
@Override
protected void init() throws EmailException {
super.init();
setHeader("Message-ID", getChangeMessageThreadId());
add(RecipientType.TO, reviewers);
add(RecipientType.CC, extraCC);
rcptToAuthors(RecipientType.CC);
}
@Override
protected void formatChange() throws EmailException {
appendText(velocifyFile("NewChange.vm"));
}
public List<String> getReviewerNames() {
if (reviewers.isEmpty()) {
return null;
}
List<String> names = new ArrayList<String>();
for (Account.Id id : reviewers) {
names.add(getNameFor(id));
}
return names;
}
public String getSshHost() {
final List<HostKey> hostKeys = sshInfo.getHostKeys();
if (hostKeys.isEmpty()) {
return null;
}
final String host = hostKeys.get(0).getHost();
if (host.startsWith("*:")) {
return getGerritHost() + host.substring(1);
}
return host;
}
public boolean getIncludeDiff() {
return args.settings.includeDiff;
}
/** Show patch set as unified difference. */
public String getUnifiedDiff() {
PatchList patchList;
try {
patchList = getPatchList();
if (patchList.getOldId() == null) {
// Octopus merges are not well supported for diff output by Gerrit.
// Currently these always have a null oldId in the PatchList.
return "";
}
} catch (PatchListNotAvailableException e) {
log.error("Cannot format patch", e);
return "";
}
TemporaryBuffer.Heap buf =
new TemporaryBuffer.Heap(args.settings.maximumDiffSize);
DiffFormatter fmt = new DiffFormatter(buf);
Repository git;
try {
git = args.server.openRepository(change.getProject());
} catch (IOException e) {
log.error("Cannot open repository to format patch", e);
return "";
}
try {
fmt.setRepository(git);
fmt.setDetectRenames(true);
fmt.format(patchList.getOldId(), patchList.getNewId());
return RawParseUtils.decode(buf.toByteArray());
} catch (IOException e) {
if (JGitText.get().inMemoryBufferLimitExceeded.equals(e.getMessage())) {
return "";
}
log.error("Cannot format patch", e);
return "";
} finally {
fmt.release();
git.close();
}
}
}