com.google.gerrit.server.patch.MergeListBuilder.java Source code

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Here is the source code for com.google.gerrit.server.patch.MergeListBuilder.java

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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.patch;

import com.google.common.collect.ImmutableList;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;

public class MergeListBuilder {
    public static List<RevCommit> 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);
            }
        }

        List<RevCommit> result = new ArrayList<>();
        RevCommit c;
        while ((c = rw.next()) != null) {
            result.add(c);
        }
        return result;
    }
}