com.google.gerrit.server.git.ReceiveCommitsAdvertiseRefsHook.java Source code

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Here is the source code for com.google.gerrit.server.git.ReceiveCommitsAdvertiseRefsHook.java

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// Copyright (C) 2010 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 com.google.common.collect.Maps;
import com.google.gerrit.server.util.MagicBranch;

import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.transport.AdvertiseRefsHook;
import org.eclipse.jgit.transport.BaseReceivePack;
import org.eclipse.jgit.transport.UploadPack;

import java.util.Map;

/** Exposes only the non refs/changes/ reference names. */
public class ReceiveCommitsAdvertiseRefsHook implements AdvertiseRefsHook {
    @Override
    public void advertiseRefs(UploadPack us) {
        throw new UnsupportedOperationException("ReceiveCommitsAdvertiseRefsHook cannot be used for UploadPack");
    }

    @Override
    public void advertiseRefs(BaseReceivePack rp) {
        Map<String, Ref> oldRefs = rp.getAdvertisedRefs();
        if (oldRefs == null) {
            oldRefs = rp.getRepository().getAllRefs();
        }
        Map<String, Ref> r = Maps.newHashMapWithExpectedSize(oldRefs.size());
        for (Map.Entry<String, Ref> e : oldRefs.entrySet()) {
            String name = e.getKey();
            if (!skip(name)) {
                r.put(name, e.getValue());
            }
        }
        rp.setAdvertisedRefs(r, rp.getAdvertisedObjects());
    }

    private static boolean skip(String name) {
        return name.startsWith("refs/changes/") || name.startsWith(GitRepositoryManager.REFS_CACHE_AUTOMERGE)
                || MagicBranch.isMagicBranch(name);
    }
}