org.eclipse.egit.gitflow.BranchNameValidator.java Source code

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Here is the source code for org.eclipse.egit.gitflow.BranchNameValidator.java

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/*******************************************************************************
 * Copyright (C) 2015, Max Hohenegger <eclipse@hohenegger.eu>
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *******************************************************************************/
package org.eclipse.egit.gitflow;

import java.util.List;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;

import static org.eclipse.egit.gitflow.Activator.error;

/**
 * Checks if name is valid and branch does not exist.
 *
 * @since 4.0
 */
public class BranchNameValidator {
    /**
     * Characters not allowed in git flow branches.
     */
    public static final String ILLEGAL_CHARS = "/ "; //$NON-NLS-1$

    /**
     * @param repository
     * @param featureName
     * @return Whether featureName corresponds to existing branch.
     * @throws CoreException
     */
    public static boolean featureExists(GitFlowRepository repository, String featureName) throws CoreException {
        return branchExists(repository, repository.getConfig().getFullFeatureBranchName(featureName));
    }

    /**
     * @param repository
     * @param hotfixName
     * @return Whether hotfixName corresponds to existing branch.
     * @throws CoreException
     */
    public static boolean hotfixExists(GitFlowRepository repository, String hotfixName) throws CoreException {
        return branchExists(repository, repository.getConfig().getFullHotfixBranchName(hotfixName));
    }

    /**
     * @param repository
     * @param releaseName
     * @return Whether releaseName corresponds to existing branch.
     * @throws CoreException
     */
    public static boolean releaseExists(GitFlowRepository repository, String releaseName) throws CoreException {
        return branchExists(repository, repository.getConfig().getFullReleaseBranchName(releaseName));
    }

    private static boolean branchExists(GitFlowRepository repository, String fullBranchName) throws CoreException {
        List<Ref> branches;
        try {
            branches = Git.wrap(repository.getRepository()).branchList().call();
        } catch (GitAPIException e) {
            throw new CoreException(error(e.getMessage(), e));
        }
        for (Ref ref : branches) {
            if (fullBranchName.equals(ref.getTarget().getName())) {
                return true;
            }
        }

        return false;
    }

    /**
     * @param name
     * @return Whether or not name would be a valid name for a branch.
     */
    public static boolean isBranchNameValid(String name) {
        return Repository.isValidRefName(Constants.R_HEADS + name);
    }
}