com.google.gerrit.server.submit.SubmitStrategy Maven / Gradle / Ivy
// Copyright (C) 2012 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.submit;
import static com.google.common.collect.ImmutableMap.toImmutableMap;
import static com.google.gerrit.server.project.ProjectCache.illegalState;
import static java.util.Objects.requireNonNull;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Sets;
import com.google.gerrit.entities.BranchNameKey;
import com.google.gerrit.entities.Change;
import com.google.gerrit.entities.SubmissionId;
import com.google.gerrit.extensions.api.changes.SubmitInput;
import com.google.gerrit.extensions.client.SubmitType;
import com.google.gerrit.extensions.config.FactoryModule;
import com.google.gerrit.server.ChangeMessagesUtil;
import com.google.gerrit.server.GerritPersonIdent;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.PatchSetUtil;
import com.google.gerrit.server.account.AccountCache;
import com.google.gerrit.server.approval.ApprovalsUtil;
import com.google.gerrit.server.change.LabelNormalizer;
import com.google.gerrit.server.change.RebaseChangeOp;
import com.google.gerrit.server.change.SetPrivateOp;
import com.google.gerrit.server.change.TestSubmitInput;
import com.google.gerrit.server.extensions.events.ChangeMerged;
import com.google.gerrit.server.git.CodeReviewCommit;
import com.google.gerrit.server.git.CodeReviewCommit.CodeReviewRevWalk;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.git.MergeTip;
import com.google.gerrit.server.git.MergeUtil;
import com.google.gerrit.server.git.TagCache;
import com.google.gerrit.server.git.validators.OnSubmitValidators;
import com.google.gerrit.server.patch.PatchSetInfoFactory;
import com.google.gerrit.server.patch.SubmitWithStickyApprovalDiff;
import com.google.gerrit.server.project.ProjectCache;
import com.google.gerrit.server.project.ProjectConfig;
import com.google.gerrit.server.project.ProjectState;
import com.google.gerrit.server.query.change.InternalChangeQuery;
import com.google.gerrit.server.submit.MergeOp.CommitStatus;
import com.google.gerrit.server.update.BatchUpdate;
import com.google.inject.Inject;
import com.google.inject.Module;
import com.google.inject.Provider;
import com.google.inject.assistedinject.Assisted;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevFlag;
/**
* Base class that submit strategies must extend.
*
* A submit strategy for a certain {@link SubmitType} defines how the submitted commits should be
* merged.
*/
public abstract class SubmitStrategy {
public static Module module() {
return new FactoryModule() {
@Override
protected void configure() {
factory(SubmitStrategy.Arguments.Factory.class);
factory(EmailMerge.Factory.class);
}
};
}
static class Arguments {
interface Factory {
Arguments create(
SubmitType submitType,
BranchNameKey destBranch,
CommitStatus commitStatus,
CodeReviewRevWalk rw,
IdentifiedUser caller,
MergeTip mergeTip,
RevFlag canMergeFlag,
Set alreadyAccepted,
Set incoming,
SubmissionId submissionId,
SubmitInput submitInput,
SubmoduleCommits submoduleCommits,
SubscriptionGraph subscriptionGraph,
boolean dryrun);
}
final AccountCache accountCache;
final ApprovalsUtil approvalsUtil;
final ChangeMerged changeMerged;
final ChangeMessagesUtil cmUtil;
final EmailMerge.Factory mergedSenderFactory;
final GitRepositoryManager repoManager;
final LabelNormalizer labelNormalizer;
final PatchSetInfoFactory patchSetInfoFactory;
final PatchSetUtil psUtil;
final ProjectCache projectCache;
final PersonIdent serverIdent;
final RebaseChangeOp.Factory rebaseFactory;
final OnSubmitValidators.Factory onSubmitValidatorsFactory;
final TagCache tagCache;
final Provider queryProvider;
final ProjectConfig.Factory projectConfigFactory;
final SetPrivateOp.Factory setPrivateOpFactory;
final SubmitWithStickyApprovalDiff submitWithStickyApprovalDiff;
final BranchNameKey destBranch;
final CodeReviewRevWalk rw;
final CommitStatus commitStatus;
final IdentifiedUser caller;
final MergeTip mergeTip;
final RevFlag canMergeFlag;
final Set alreadyAccepted;
final SubmissionId submissionId;
final SubmitType submitType;
final SubmitInput submitInput;
final SubscriptionGraph subscriptionGraph;
final SubmoduleCommits submoduleCommits;
final ProjectState project;
final MergeSorter mergeSorter;
final RebaseSorter rebaseSorter;
final MergeUtil mergeUtil;
final boolean dryrun;
@Inject
Arguments(
AccountCache accountCache,
ApprovalsUtil approvalsUtil,
ChangeMerged changeMerged,
ChangeMessagesUtil cmUtil,
EmailMerge.Factory mergedSenderFactory,
GitRepositoryManager repoManager,
LabelNormalizer labelNormalizer,
MergeUtil.Factory mergeUtilFactory,
PatchSetInfoFactory patchSetInfoFactory,
PatchSetUtil psUtil,
@GerritPersonIdent PersonIdent serverIdent,
ProjectCache projectCache,
RebaseChangeOp.Factory rebaseFactory,
OnSubmitValidators.Factory onSubmitValidatorsFactory,
TagCache tagCache,
Provider queryProvider,
ProjectConfig.Factory projectConfigFactory,
SetPrivateOp.Factory setPrivateOpFactory,
SubmitWithStickyApprovalDiff submitWithStickyApprovalDiff,
@Assisted BranchNameKey destBranch,
@Assisted CommitStatus commitStatus,
@Assisted CodeReviewRevWalk rw,
@Assisted IdentifiedUser caller,
@Assisted MergeTip mergeTip,
@Assisted RevFlag canMergeFlag,
@Assisted Set alreadyAccepted,
@Assisted Set incoming,
@Assisted SubmissionId submissionId,
@Assisted SubmitType submitType,
@Assisted SubmitInput submitInput,
@Assisted SubscriptionGraph subscriptionGraph,
@Assisted SubmoduleCommits submoduleCommits,
@Assisted boolean dryrun) {
this.accountCache = accountCache;
this.approvalsUtil = approvalsUtil;
this.changeMerged = changeMerged;
this.mergedSenderFactory = mergedSenderFactory;
this.repoManager = repoManager;
this.cmUtil = cmUtil;
this.labelNormalizer = labelNormalizer;
this.projectConfigFactory = projectConfigFactory;
this.patchSetInfoFactory = patchSetInfoFactory;
this.psUtil = psUtil;
this.projectCache = projectCache;
this.rebaseFactory = rebaseFactory;
this.tagCache = tagCache;
this.queryProvider = queryProvider;
this.setPrivateOpFactory = setPrivateOpFactory;
this.submitWithStickyApprovalDiff = submitWithStickyApprovalDiff;
this.serverIdent = serverIdent;
this.destBranch = destBranch;
this.commitStatus = commitStatus;
this.rw = rw;
this.caller = caller;
this.mergeTip = mergeTip;
this.canMergeFlag = canMergeFlag;
this.alreadyAccepted = alreadyAccepted;
this.submissionId = submissionId;
this.submitType = submitType;
this.submitInput = submitInput;
this.submoduleCommits = submoduleCommits;
this.subscriptionGraph = subscriptionGraph;
this.dryrun = dryrun;
this.project =
projectCache.get(destBranch.project()).orElseThrow(illegalState(destBranch.project()));
this.mergeSorter =
new MergeSorter(caller, rw, alreadyAccepted, canMergeFlag, queryProvider, incoming);
this.rebaseSorter =
new RebaseSorter(
caller,
rw,
mergeTip.getInitialTip(),
alreadyAccepted,
canMergeFlag,
queryProvider,
incoming);
this.mergeUtil = mergeUtilFactory.create(project);
this.onSubmitValidatorsFactory = onSubmitValidatorsFactory;
}
}
final Arguments args;
private final Set submitStrategyOps;
SubmitStrategy(Arguments args) {
this.args = requireNonNull(args);
this.submitStrategyOps = new HashSet<>();
}
/**
* Returns the updated changed after this submit strategy has been executed.
*
* @return the updated changes after this submit strategy has been executed
*/
public ImmutableMap getUpdatedChanges() {
return submitStrategyOps.stream()
.map(SubmitStrategyOp::getUpdatedChange)
.filter(Optional::isPresent)
.map(Optional::get)
.collect(toImmutableMap(c -> c.getId(), c -> c));
}
/**
* Add operations to a batch update that execute this submit strategy.
*
* Guarantees exactly one op is added to the update for each change in the input set.
*
* @param bu batch update to add operations to.
* @param toMerge the set of submitted commits that should be merged using this submit strategy.
* Implementations are responsible for ordering of commits, and will not modify the input in
* place.
*/
public final void addOps(BatchUpdate bu, Set toMerge) {
List ops = buildOps(toMerge);
Set added = Sets.newHashSetWithExpectedSize(ops.size());
for (SubmitStrategyOp op : ops) {
added.add(op.getCommit());
}
// First add ops for any implicitly merged changes.
List difference = new ArrayList<>(Sets.difference(toMerge, added));
Collections.reverse(difference);
for (CodeReviewCommit c : difference) {
Change.Id id = c.change().getId();
bu.addOp(id, args.setPrivateOpFactory.create(false, null));
ImplicitIntegrateOp implicitIntegrateOp = new ImplicitIntegrateOp(args, c);
bu.addOp(id, implicitIntegrateOp);
maybeAddTestHelperOp(bu, id);
this.submitStrategyOps.add(implicitIntegrateOp);
}
// Then ops for explicitly merged changes
for (SubmitStrategyOp op : ops) {
bu.addOp(op.getId(), args.setPrivateOpFactory.create(false, null));
bu.addOp(op.getId(), op);
maybeAddTestHelperOp(bu, op.getId());
this.submitStrategyOps.add(op);
}
}
private void maybeAddTestHelperOp(BatchUpdate bu, Change.Id changeId) {
if (args.submitInput instanceof TestSubmitInput) {
bu.addOp(changeId, new TestHelperOp(changeId, args));
}
}
protected abstract ImmutableList buildOps(Collection toMerge);
}