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/*
* 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.File;
import java.io.IOException;
import java.text.MessageFormat;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoFilepatternException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.storage.file.FileBasedConfig;
import org.eclipse.jgit.submodule.SubmoduleWalk;
import org.eclipse.jgit.treewalk.filter.PathFilter;
import org.eclipse.jgit.treewalk.filter.TreeFilter;
/**
* A class used to execute a submodule add command.
*
* This will clone the configured submodule, register the submodule in the
* .gitmodules file and the repository config file, and also add the submodule
* and .gitmodules file to the index.
*
* @see <a
* href="http://www.kernel.org/pub/software/scm/git/docs/git-submodule.html"
* >Git documentation about submodules</a>
*/
public class SubmoduleAddCommand extends
TransportCommand<SubmoduleAddCommand, Repository> {
private String path;
private String uri;
private ProgressMonitor monitor;
/**
* @param repo
*/
public SubmoduleAddCommand(final Repository repo) {
super(repo);
}
/**
* Set repository-relative path of submodule
*
* @param path
* (with <code>/</code> as separator)
* @return this command
*/
public SubmoduleAddCommand setPath(final String path) {
this.path = path;
return this;
}
/**
* Set URI to clone submodule from
*
* @param uri
* @return this command
*/
public SubmoduleAddCommand setURI(final String uri) {
this.uri = uri;
return this;
}
/**
* The progress monitor associated with the clone operation. By default,
* this is set to <code>NullProgressMonitor</code>
*
* @see NullProgressMonitor
* @param monitor
* @return this command
*/
public SubmoduleAddCommand setProgressMonitor(final ProgressMonitor monitor) {
this.monitor = monitor;
return this;
}
/**
* Is the configured already a submodule in the index?
*
* @return true if submodule exists in index, false otherwise
* @throws IOException
*/
protected boolean submoduleExists() throws IOException {
TreeFilter filter = PathFilter.create(path);
return SubmoduleWalk.forIndex(repo).setFilter(filter).next();
}
/**
* Executes the {@code SubmoduleAddCommand}
*
* The {@code Repository} instance returned by this command needs to be
* closed by the caller to free resources held by the {@code Repository}
* instance. It is recommended to call this method as soon as you don't need
* a reference to this {@code Repository} instance anymore.
*
* @return the newly created {@link Repository}
* @throws GitAPIException
*/
public Repository call() throws GitAPIException {
checkCallable();
if (path == null || path.length() == 0)
throw new IllegalArgumentException(JGitText.get().pathNotConfigured);
if (uri == null || uri.length() == 0)
throw new IllegalArgumentException(JGitText.get().uriNotConfigured);
try {
if (submoduleExists())
throw new JGitInternalException(MessageFormat.format(
JGitText.get().submoduleExists, path));
} catch (IOException e) {
throw new JGitInternalException(e.getMessage(), e);
}
final String resolvedUri;
try {
resolvedUri = SubmoduleWalk.getSubmoduleRemoteUrl(repo, uri);
} catch (IOException e) {
throw new JGitInternalException(e.getMessage(), e);
}
// Clone submodule repository
File moduleDirectory = SubmoduleWalk.getSubmoduleDirectory(repo, path);
CloneCommand clone = Git.cloneRepository();
configure(clone);
clone.setDirectory(moduleDirectory);
clone.setURI(resolvedUri);
if (monitor != null)
clone.setProgressMonitor(monitor);
Repository subRepo = clone.call().getRepository();
// Save submodule URL to parent repository's config
StoredConfig config = repo.getConfig();
config.setString(ConfigConstants.CONFIG_SUBMODULE_SECTION, path,
ConfigConstants.CONFIG_KEY_URL, resolvedUri);
try {
config.save();
} catch (IOException e) {
throw new JGitInternalException(e.getMessage(), e);
}
// Save path and URL to parent repository's .gitmodules file
FileBasedConfig modulesConfig = new FileBasedConfig(new File(
repo.getWorkTree(), Constants.DOT_GIT_MODULES), repo.getFS());
try {
modulesConfig.load();
modulesConfig.setString(ConfigConstants.CONFIG_SUBMODULE_SECTION,
path, ConfigConstants.CONFIG_KEY_PATH, path);
modulesConfig.setString(ConfigConstants.CONFIG_SUBMODULE_SECTION,
path, ConfigConstants.CONFIG_KEY_URL, uri);
modulesConfig.save();
} catch (IOException e) {
throw new JGitInternalException(e.getMessage(), e);
} catch (ConfigInvalidException e) {
throw new JGitInternalException(e.getMessage(), e);
}
AddCommand add = new AddCommand(repo);
// Add .gitmodules file to parent repository's index
add.addFilepattern(Constants.DOT_GIT_MODULES);
// Add submodule directory to parent repository's index
add.addFilepattern(path);
try {
add.call();
} catch (NoFilepatternException e) {
throw new JGitInternalException(e.getMessage(), e);
}
return subRepo;
}
}
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