48 lines
1.9 KiB
Java
48 lines
1.9 KiB
Java
// Copyright (C) 2012 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package com.google.gerrit.server;
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import com.google.gerrit.reviewdb.client.Branch;
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import com.google.gerrit.reviewdb.client.RefNames;
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import com.google.gerrit.server.git.GitRepositoryManager;
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import java.io.IOException;
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import org.eclipse.jgit.errors.RepositoryNotFoundException;
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import org.eclipse.jgit.lib.Repository;
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public class ProjectUtil {
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/**
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* Checks whether the specified branch exists.
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*
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* @param repoManager Git repository manager to open the git repository
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* @param branch the branch for which it should be checked if it exists
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* @return {@code true} if the specified branch exists or if {@code HEAD} points to this branch,
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* otherwise {@code false}
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* @throws RepositoryNotFoundException the repository of the branch's project does not exist.
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* @throws IOException error while retrieving the branch from the repository.
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*/
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public static boolean branchExists(final GitRepositoryManager repoManager, Branch.NameKey branch)
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throws RepositoryNotFoundException, IOException {
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try (Repository repo = repoManager.openRepository(branch.getParentKey())) {
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boolean exists = repo.getRefDatabase().exactRef(branch.get()) != null;
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if (!exists) {
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exists =
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repo.getFullBranch().equals(branch.get()) || RefNames.REFS_CONFIG.equals(branch.get());
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}
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return exists;
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}
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}
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}
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