com.google.gerrit.server.patch.MergeListBuilder Maven / Gradle / Ivy
// 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.patch;
import com.google.common.collect.ImmutableList;
import java.io.IOException;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
public class MergeListBuilder {
public static ImmutableList build(RevWalk rw, RevCommit merge, int uninterestingParent)
throws IOException {
rw.reset();
rw.parseBody(merge);
if (merge.getParentCount() < 2) {
return ImmutableList.of();
}
for (int parent = 0; parent < merge.getParentCount(); parent++) {
RevCommit parentCommit = merge.getParent(parent);
rw.parseBody(parentCommit);
if (parent == uninterestingParent - 1) {
rw.markUninteresting(parentCommit);
} else {
rw.markStart(parentCommit);
}
}
ImmutableList.Builder result = ImmutableList.builder();
RevCommit c;
while ((c = rw.next()) != null) {
result.add(c);
}
return result.build();
}
}