com.google.gerrit.server.submit.FastForwardOnly 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 com.google.common.collect.ImmutableList;
import com.google.gerrit.entities.BranchNameKey;
import com.google.gerrit.server.git.CodeReviewCommit;
import com.google.gerrit.server.update.RepoContext;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class FastForwardOnly extends SubmitStrategy {
FastForwardOnly(SubmitStrategy.Arguments args) {
super(args);
}
@Override
public ImmutableList buildOps(Collection toMerge) {
List sorted = args.mergeUtil.reduceToMinimalMerge(args.mergeSorter, toMerge);
Map branchToCommit = new HashMap<>();
for (CodeReviewCommit codeReviewCommit : sorted) {
BranchNameKey branchNameKey = codeReviewCommit.change().getDest();
CodeReviewCommit otherCommitInBranch = branchToCommit.get(branchNameKey);
if (otherCommitInBranch == null) {
branchToCommit.put(branchNameKey, codeReviewCommit);
} else {
// we found another change with the same destination branch.
codeReviewCommit.setStatusCode(CommitMergeStatus.FAST_FORWARD_INDEPENDENT_CHANGES);
otherCommitInBranch.setStatusCode(CommitMergeStatus.FAST_FORWARD_INDEPENDENT_CHANGES);
return ImmutableList.of();
}
}
ImmutableList.Builder ops =
ImmutableList.builderWithExpectedSize(sorted.size());
CodeReviewCommit newTipCommit =
args.mergeUtil.getFirstFastForward(args.mergeTip.getInitialTip(), args.rw, sorted);
if (!newTipCommit.equals(args.mergeTip.getInitialTip())) {
ops.add(new FastForwardOp(args, newTipCommit));
} else {
for (CodeReviewCommit c : toMerge) {
ops.add(new NotFastForwardOp(c));
}
}
return ops.build();
}
private class NotFastForwardOp extends SubmitStrategyOp {
private NotFastForwardOp(CodeReviewCommit toMerge) {
super(FastForwardOnly.this.args, toMerge);
}
@Override
public void updateRepoImpl(RepoContext ctx) {
toMerge.setStatusCode(CommitMergeStatus.NOT_FAST_FORWARD);
}
}
static boolean dryRun(
SubmitDryRun.Arguments args, CodeReviewCommit mergeTip, CodeReviewCommit toMerge) {
return args.mergeUtil.canFastForward(args.mergeSorter, mergeTip, args.rw, toMerge);
}
}