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- /*
- * Copyright (C) 2011, Robin Stocker <robin@nibor.org>
- * Copyright (C) 2012, Matthias Sohn <matthias.sohn@sap.com>
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
- package org.eclipse.jgit.lib;
-
- import java.net.URISyntaxException;
-
- import org.eclipse.jgit.transport.RefSpec;
- import org.eclipse.jgit.transport.RemoteConfig;
-
- /**
- * Branch section of a Git configuration file.
- */
- public class BranchConfig {
-
- private final Config config;
- private final String branchName;
-
- /**
- * Create a new branch config, which will read configuration from config
- * about specified branch.
- *
- * @param config
- * the config to read from
- * @param branchName
- * the short branch name of the section to read
- */
- public BranchConfig(final Config config, String branchName) {
- this.config = config;
- this.branchName = branchName;
- }
-
- /**
- * @return the full tracking branch name or <code>null</code> if it could
- * not be determined
- */
- public String getTrackingBranch() {
- String remote = getRemote();
- String mergeRef = getMergeBranch();
- if (remote == null || mergeRef == null)
- return null;
-
- if (remote.equals(".")) //$NON-NLS-1$
- return mergeRef;
-
- return findRemoteTrackingBranch(remote, mergeRef);
- }
-
- /**
- * @return the full remote-tracking branch name or {@code null} if it could
- * not be determined. If you also want local tracked branches use
- * {@link #getTrackingBranch()} instead.
- */
- public String getRemoteTrackingBranch() {
- String remote = getRemote();
- String mergeRef = getMergeBranch();
- if (remote == null || mergeRef == null)
- return null;
-
- return findRemoteTrackingBranch(remote, mergeRef);
- }
-
- /**
- * Finds the tracked remote tracking branch
- *
- * @param remote
- * Remote name
- * @param mergeRef
- * merge Ref of the local branch tracking the remote tracking
- * branch
- * @return full remote tracking branch name or null
- */
- private String findRemoteTrackingBranch(String remote, String mergeRef) {
- RemoteConfig remoteConfig;
- try {
- remoteConfig = new RemoteConfig(config, remote);
- } catch (URISyntaxException e) {
- return null;
- }
- for (RefSpec refSpec : remoteConfig.getFetchRefSpecs()) {
- if (refSpec.matchSource(mergeRef)) {
- RefSpec expanded = refSpec.expandFromSource(mergeRef);
- return expanded.getDestination();
- }
- }
- return null;
- }
-
- private String getRemote() {
- String remoteName = config.getString(
- ConfigConstants.CONFIG_BRANCH_SECTION, branchName,
- ConfigConstants.CONFIG_KEY_REMOTE);
- if (remoteName == null)
- return Constants.DEFAULT_REMOTE_NAME;
- else
- return remoteName;
- }
-
- private String getMergeBranch() {
- String mergeRef = config.getString(
- ConfigConstants.CONFIG_BRANCH_SECTION, branchName,
- ConfigConstants.CONFIG_KEY_MERGE);
- return mergeRef;
- }
- }
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