/*
* Copyright (C) 2011, Christoph Brill <egore911@egore911.de>
* 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.net.URISyntaxException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jgit.JGitText;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRemoteException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.NotSupportedException;
import org.eclipse.jgit.errors.TransportException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.FetchConnection;
import org.eclipse.jgit.transport.RefSpec;
import org.eclipse.jgit.transport.Transport;
/**
* The ls-remote command
*
* @see <a
* href="http://www.kernel.org/pub/software/scm/git/docs/git-ls-remote.html"
* >Git documentation about ls-remote</a>
*/
public class LsRemoteCommand extends
TransportCommand<LsRemoteCommand, Collection<Ref>> {
private String remote = Constants.DEFAULT_REMOTE_NAME;
private boolean heads;
private boolean tags;
private String uploadPack;
/**
* @param repo
*/
public LsRemoteCommand(Repository repo) {
super(repo);
}
/**
* The remote (uri or name) used for the fetch operation. If no remote is
* set, the default value of <code>Constants.DEFAULT_REMOTE_NAME</code> will
* be used.
*
* @see Constants#DEFAULT_REMOTE_NAME
* @param remote
* @return {@code this}
*/
public LsRemoteCommand setRemote(String remote) {
checkCallable();
this.remote = remote;
return this;
}
/**
* Include refs/heads in references results
*
* @param heads
*/
public void setHeads(boolean heads) {
this.heads = heads;
}
/**
* Include refs/tags in references results
*
* @param tags
*/
public void setTags(boolean tags) {
this.tags = tags;
}
/**
* The full path of git-upload-pack on the remote host
*
* @param uploadPack
*/
public void setUploadPack(String uploadPack) {
this.uploadPack = uploadPack;
}
/**
* Executes the {@code LsRemote} command with all the options and parameters
* collected by the setter methods (e.g. {@link #setHeads(boolean)}) of this
* class. Each instance of this class should only be used for one invocation
* of the command. Don't call this method twice on an instance.
*
* @return a collection of references in the remote repository
* @throws InvalidRemoteException
* when called with an invalid remote uri
* @throws JGitInternalException
* a low-level exception of JGit has occurred. The original
* exception can be retrieved by calling
* {@link Exception#getCause()}.
*/
public Collection<Ref> call() throws GitAPIException,
JGitInternalException {
checkCallable();
Transport transport = null;
FetchConnection fc = null;
try {
transport = Transport.open(repo, remote);
transport.setOptionUploadPack(uploadPack);
configure(transport);
Collection<RefSpec> refSpecs = new ArrayList<RefSpec>(1);
if (tags)
refSpecs.add(new RefSpec(
"refs/tags/*:refs/remotes/origin/tags/*"));
if (heads)
refSpecs.add(new RefSpec("refs/heads/*:refs/remotes/origin/*"));
Collection<Ref> refs;
Map<String, Ref> refmap = new HashMap<String, Ref>();
fc = transport.openFetch();
refs = fc.getRefs();
if (refSpecs.isEmpty())
for (Ref r : refs)
refmap.put(r.getName(), r);
else
for (Ref r : refs)
for (RefSpec rs : refSpecs)
if (rs.matchSource(r)) {
refmap.put(r.getName(), r);
break;
}
return refmap.values();
} catch (URISyntaxException e) {
throw new InvalidRemoteException(MessageFormat.format(
JGitText.get().invalidRemote, remote));
} catch (NotSupportedException e) {
throw new JGitInternalException(
JGitText.get().exceptionCaughtDuringExecutionOfLsRemoteCommand,
e);
} catch (TransportException e) {
throw new org.eclipse.jgit.api.errors.TransportException(
JGitText.get().exceptionCaughtDuringExecutionOfLsRemoteCommand,
e);
} finally {
if (fc != null)
fc.close();
if (transport != null)
transport.close();
}
}
}