/*
* Copyright (C) 2011, GitHub Inc.
* 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.api;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.submodule.SubmoduleWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
/**
* A class used to execute a submodule sync command.
*
* This will set the remote URL in a submodule's repository to the current value
* in the .gitmodules file.
*
* @see <a
* href="http://www.kernel.org/pub/software/scm/git/docs/git-submodule.html"
* >Git documentation about submodules</a>
*/
public class SubmoduleSyncCommand extends GitCommand<Map<String, String>> {
private final Collection<String> paths;
/**
* @param repo
*/
public SubmoduleSyncCommand(final Repository repo) {
super(repo);
paths = new ArrayList<String>();
}
/**
* Add repository-relative submodule path to synchronize
*
* @param path
* @return this command
*/
public SubmoduleSyncCommand addPath(final String path) {
paths.add(path);
return this;
}
/**
* Get branch that HEAD currently points to
*
* @param subRepo
* @return shortened branch name, null on failures
* @throws IOException
*/
protected String getHeadBranch(final Repository subRepo) throws IOException {
Ref head = subRepo.getRef(Constants.HEAD);
if (head != null && head.isSymbolic())
return Repository.shortenRefName(head.getLeaf().getName());
else
return null;
}
public Map<String, String> call() throws JGitInternalException {
checkCallable();
try {
SubmoduleWalk generator = SubmoduleWalk.forIndex(repo);
if (!paths.isEmpty())
generator.setFilter(PathFilterGroup.createFromStrings(paths));
Map<String, String> synced = new HashMap<String, String>();
StoredConfig config = repo.getConfig();
while (generator.next()) {
String remoteUrl = generator.getRemoteUrl();
if (remoteUrl == null)
continue;
String path = generator.getPath();
config.setString(ConfigConstants.CONFIG_SUBMODULE_SECTION,
path, ConfigConstants.CONFIG_KEY_URL, remoteUrl);
synced.put(path, remoteUrl);
Repository subRepo = generator.getRepository();
if (subRepo == null)
continue;
StoredConfig subConfig = subRepo.getConfig();
// Get name of remote associated with current branch and
// fall back to default remote name as last resort
String branch = getHeadBranch(subRepo);
String remote = null;
if (branch != null)
remote = subConfig.getString(
ConfigConstants.CONFIG_BRANCH_SECTION, branch,
ConfigConstants.CONFIG_KEY_REMOTE);
if (remote == null)
remote = Constants.DEFAULT_REMOTE_NAME;
subConfig.setString(ConfigConstants.CONFIG_REMOTE_SECTION,
remote, ConfigConstants.CONFIG_KEY_URL, remoteUrl);
subConfig.save();
}
if (!synced.isEmpty())
config.save();
return synced;
} catch (IOException e) {
throw new JGitInternalException(e.getMessage(), e);
} catch (ConfigInvalidException e) {
throw new JGitInternalException(e.getMessage(), e);
}
}
}