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/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* 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.intellij.dvcs.branch;
import com.intellij.dvcs.repo.Repository;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.Collection;
public abstract class DvcsMultiRootBranchConfig<Repo extends Repository> {
@NotNull protected final Collection<Repo> myRepositories;
public DvcsMultiRootBranchConfig(@NotNull Collection<Repo> repositories) {
myRepositories = repositories;
}
public boolean diverged() {
return getCurrentBranch() == null;
}
@Nullable
public String getCurrentBranch() {
String commonBranch = null;
for (Repo repository : myRepositories) {
String branchName = repository.getCurrentBranchName();
if (branchName == null) {
return null;
}
// NB: if all repositories are in the rebasing state on the same branches, this branch is returned
if (commonBranch == null) {
commonBranch = branchName;
}
else if (!commonBranch.equals(branchName)) {
return null;
}
}
return commonBranch;
}
@Nullable
public Repository.State getState() {
Repository.State commonState = null;
for (Repo repository : myRepositories) {
Repository.State state = repository.getState();
if (commonState == null) {
commonState = state;
}
else if (!commonState.equals(state)) {
return null;
}
}
return commonState;
}
@NotNull
public abstract Collection<String> getLocalBranchNames();
}
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