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// Copyright (C) 2016 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.git;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.client.ChangeMessage;
import com.google.gerrit.reviewdb.client.LabelId;
import com.google.gerrit.reviewdb.client.PatchSet;
import com.google.gerrit.reviewdb.client.PatchSetApproval;
import com.google.gerrit.reviewdb.client.PatchSetInfo;
import com.google.gerrit.server.ApprovalsUtil;
import com.google.gerrit.server.ChangeMessagesUtil;
import com.google.gerrit.server.PatchSetUtil;
import com.google.gerrit.server.extensions.events.ChangeMerged;
import com.google.gerrit.server.mail.send.MergedSender;
import com.google.gerrit.server.notedb.ChangeUpdate;
import com.google.gerrit.server.patch.PatchSetInfoFactory;
import com.google.gerrit.server.update.BatchUpdateOp;
import com.google.gerrit.server.update.ChangeContext;
import com.google.gerrit.server.update.Context;
import com.google.gerrit.server.util.RequestScopePropagator;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.assistedinject.Assisted;
import java.io.IOException;
import java.util.Collections;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MergedByPushOp implements BatchUpdateOp {
private static final Logger log = LoggerFactory.getLogger(MergedByPushOp.class);
public interface Factory {
MergedByPushOp create(
RequestScopePropagator requestScopePropagator, PatchSet.Id psId, String refName);
}
private final RequestScopePropagator requestScopePropagator;
private final PatchSetInfoFactory patchSetInfoFactory;
private final ChangeMessagesUtil cmUtil;
private final MergedSender.Factory mergedSenderFactory;
private final PatchSetUtil psUtil;
private final ExecutorService sendEmailExecutor;
private final ChangeMerged changeMerged;
private final PatchSet.Id psId;
private final String refName;
private Change change;
private boolean correctBranch;
private Provider<PatchSet> patchSetProvider;
private PatchSet patchSet;
private PatchSetInfo info;
@Inject
MergedByPushOp(
PatchSetInfoFactory patchSetInfoFactory,
ChangeMessagesUtil cmUtil,
MergedSender.Factory mergedSenderFactory,
PatchSetUtil psUtil,
@SendEmailExecutor ExecutorService sendEmailExecutor,
ChangeMerged changeMerged,
@Assisted RequestScopePropagator requestScopePropagator,
@Assisted PatchSet.Id psId,
@Assisted String refName) {
this.patchSetInfoFactory = patchSetInfoFactory;
this.cmUtil = cmUtil;
this.mergedSenderFactory = mergedSenderFactory;
this.psUtil = psUtil;
this.sendEmailExecutor = sendEmailExecutor;
this.changeMerged = changeMerged;
this.requestScopePropagator = requestScopePropagator;
this.psId = psId;
this.refName = refName;
}
public String getMergedIntoRef() {
return refName;
}
public MergedByPushOp setPatchSetProvider(Provider<PatchSet> patchSetProvider) {
this.patchSetProvider = checkNotNull(patchSetProvider);
return this;
}
@Override
public boolean updateChange(ChangeContext ctx) throws OrmException, IOException {
change = ctx.getChange();
correctBranch = refName.equals(change.getDest().get());
if (!correctBranch) {
return false;
}
if (patchSetProvider != null) {
// Caller might have also arranged for construction of a new patch set
// that is not present in the old notes so we can't use PatchSetUtil.
patchSet = patchSetProvider.get();
} else {
patchSet =
checkNotNull(
psUtil.get(ctx.getDb(), ctx.getNotes(), psId), "patch set %s not found", psId);
}
info = getPatchSetInfo(ctx);
ChangeUpdate update = ctx.getUpdate(psId);
Change.Status status = change.getStatus();
if (status == Change.Status.MERGED) {
return true;
}
change.setCurrentPatchSet(info);
change.setStatus(Change.Status.MERGED);
// we cannot reconstruct the submit records for when this change was
// submitted, this is why we must fix the status
update.fixStatus(Change.Status.MERGED);
update.setCurrentPatchSet();
StringBuilder msgBuf = new StringBuilder();
msgBuf.append("Change has been successfully pushed");
if (!refName.equals(change.getDest().get())) {
msgBuf.append(" into ");
if (refName.startsWith(Constants.R_HEADS)) {
msgBuf.append("branch ");
msgBuf.append(Repository.shortenRefName(refName));
} else {
msgBuf.append(refName);
}
}
msgBuf.append(".");
ChangeMessage msg =
ChangeMessagesUtil.newMessage(
psId, ctx.getUser(), ctx.getWhen(), msgBuf.toString(), ChangeMessagesUtil.TAG_MERGED);
cmUtil.addChangeMessage(ctx.getDb(), update, msg);
PatchSetApproval submitter =
ApprovalsUtil.newApproval(
change.currentPatchSetId(), ctx.getUser(), LabelId.legacySubmit(), 1, ctx.getWhen());
update.putApproval(submitter.getLabel(), submitter.getValue());
ctx.getDb().patchSetApprovals().upsert(Collections.singleton(submitter));
return true;
}
@Override
public void postUpdate(Context ctx) {
if (!correctBranch) {
return;
}
@SuppressWarnings("unused") // Runnable already handles errors
Future<?> possiblyIgnoredError =
sendEmailExecutor.submit(
requestScopePropagator.wrap(
new Runnable() {
@Override
public void run() {
try {
MergedSender cm =
mergedSenderFactory.create(ctx.getProject(), psId.getParentKey());
cm.setFrom(ctx.getAccountId());
cm.setPatchSet(patchSet, info);
cm.send();
} catch (Exception e) {
log.error("Cannot send email for submitted patch set " + psId, e);
}
}
@Override
public String toString() {
return "send-email merged";
}
}));
changeMerged.fire(
change, patchSet, ctx.getAccount(), patchSet.getRevision().get(), ctx.getWhen());
}
private PatchSetInfo getPatchSetInfo(ChangeContext ctx) throws IOException, OrmException {
RevWalk rw = ctx.getRevWalk();
RevCommit commit =
rw.parseCommit(ObjectId.fromString(checkNotNull(patchSet).getRevision().get()));
return patchSetInfoFactory.get(rw, commit, psId);
}
}
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