Files
SCM-Manager/scm-plugins/scm-git-plugin/src/main/java/sonia/scm/web/GitReceiveHook.java
2012-09-13 19:01:39 +02:00

436 lines
11 KiB
Java

/**
* Copyright (c) 2010, Sebastian Sdorra
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of SCM-Manager; 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 REGENTS 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.
*
* http://bitbucket.org/sdorra/scm-manager
*
*/
package sonia.scm.web;
//~--- non-JDK imports --------------------------------------------------------
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.transport.PostReceiveHook;
import org.eclipse.jgit.transport.PreReceiveHook;
import org.eclipse.jgit.transport.ReceiveCommand;
import org.eclipse.jgit.transport.ReceivePack;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import sonia.scm.io.Command;
import sonia.scm.io.CommandResult;
import sonia.scm.io.SimpleCommand;
import sonia.scm.repository.GitRepositoryHandler;
import sonia.scm.repository.GitRepositoryHookEvent;
import sonia.scm.repository.GitUtil;
import sonia.scm.repository.RepositoryHookType;
import sonia.scm.repository.RepositoryManager;
import sonia.scm.repository.RepositoryNotFoundException;
import sonia.scm.repository.RepositoryUtil;
import sonia.scm.util.IOUtil;
import sonia.scm.util.Util;
//~--- JDK imports ------------------------------------------------------------
import java.io.File;
import java.io.IOException;
import java.util.Collection;
/**
*
* @author Sebastian Sdorra
*/
public class GitReceiveHook implements PreReceiveHook, PostReceiveHook
{
/** Field description */
public static final String FILE_HOOKDIRECTORY = "hooks";
/** Field description */
public static final String FILE_HOOK_POST_RECEIVE = "post-receive";
/** Field description */
public static final String FILE_HOOK_PRE_RECEIVE = "pre-receive";
/** Field description */
public static final String PREFIX_MSG = "[SCM] ";
/** the logger for GitReceiveHook */
private static final Logger logger =
LoggerFactory.getLogger(GitReceiveHook.class);
//~--- constructors ---------------------------------------------------------
/**
* Constructs ...
*
*
* @param repositoryManager
* @param handler
*/
public GitReceiveHook(RepositoryManager repositoryManager,
GitRepositoryHandler handler)
{
this.repositoryManager = repositoryManager;
this.handler = handler;
}
//~--- methods --------------------------------------------------------------
/**
* Method description
*
*
* @param rpack
* @param receiveCommands
*/
@Override
public void onPostReceive(ReceivePack rpack,
Collection<ReceiveCommand> receiveCommands)
{
onReceive(rpack, receiveCommands, RepositoryHookType.POST_RECEIVE);
}
/**
* Method description
*
*
*
* @param rpack
* @param receiveCommands
*/
@Override
public void onPreReceive(ReceivePack rpack,
Collection<ReceiveCommand> receiveCommands)
{
onReceive(rpack, receiveCommands, RepositoryHookType.PRE_RECEIVE);
}
/**
* Method description
*
* @param rpack
* @param rc
* @param repositoryDirectory
* @param hook
* @param oldId
* @param newId
* @param refName
*/
private void executeFileHook(ReceivePack rpack, ReceiveCommand rc,
File repositoryDirectory, File hook, ObjectId oldId, ObjectId newId,
String refName)
{
if (logger.isDebugEnabled())
{
logger.debug("execute file hook '{}' in directoy '{}'");
}
final Command cmd = new SimpleCommand(hook.getAbsolutePath(),
GitUtil.getId(oldId), GitUtil.getId(newId),
Util.nonNull(refName));
// issue-99
cmd.setWorkDirectory(repositoryDirectory);
try
{
CommandResult result = cmd.execute();
if (result.isSuccessfull())
{
if (logger.isDebugEnabled())
{
logger.debug("executed file hook successfull");
if (logger.isTraceEnabled())
{
String out = result.getOutput();
if (Util.isNotEmpty(out))
{
logger.trace(out);
}
}
}
}
else
{
if (logger.isErrorEnabled())
{
logger.error("failed to execute file hook");
}
String out = result.getOutput();
if (Util.isNotEmpty(out))
{
logger.error(out);
}
sendError(rpack, rc, out);
}
}
catch (IOException ex)
{
logger.error("could not execute file hook", ex);
}
}
/**
* Method description, occurred
*
* @param rpack
* @param rc
* @param directory
* @param oldId
* @param newId
* @param type
*/
private void fireHookEvent(ReceivePack rpack, ReceiveCommand rc,
File directory, ObjectId oldId, ObjectId newId, RepositoryHookType type)
{
try
{
String repositoryName = RepositoryUtil.getRepositoryName(handler,
directory);
GitRepositoryHookEvent e = new GitRepositoryHookEvent(directory,
rc.getRefName(), newId, oldId, type);
repositoryManager.fireHookEvent(GitRepositoryHandler.TYPE_NAME,
repositoryName, e);
}
catch (RepositoryNotFoundException ex)
{
logger.error("repository could not be found", ex);
}
catch (Exception ex)
{
if (logger.isWarnEnabled())
{
logger.warn("execption occurred during hook execution", ex);
}
sendError(rpack, rc, ex.getMessage());
}
}
/**
* Method description
*
*
* @param rpack
* @param receiveCommands
* @param type
*/
private void onReceive(ReceivePack rpack,
Collection<ReceiveCommand> receiveCommands, RepositoryHookType type)
{
if (logger.isTraceEnabled())
{
logger.trace("received git hook, type={}", type);
}
for (ReceiveCommand rc : receiveCommands)
{
if (isReceiveable(rc, type))
{
if (logger.isTraceEnabled())
{
//J-
logger.trace("handle receive command, type={}, ref={}, result={}",
new Object[] {
rc.getType(),
rc.getRefName(),
rc.getResult()
}
);
//J+
}
ObjectId newId = rc.getNewId();
if (newId != null)
{
onReceive(rpack, rc, newId, type);
}
else if (logger.isWarnEnabled())
{
logger.warn("received hook event without new id");
}
}
else if (logger.isTraceEnabled())
{
//J-
logger.trace("skip receive command, type={}, ref={}, result={}",
new Object[] {
rc.getType(),
rc.getRefName(),
rc.getResult()
}
);
//J+
}
}
}
/**
* Method description
*
*
* @param rpack
* @param rc
* @param newId
* @param type
*/
private void onReceive(ReceivePack rpack, ReceiveCommand rc, ObjectId newId,
RepositoryHookType type)
{
ObjectId oldId = null;
if (isUpdateCommand(rc))
{
oldId = rc.getOldId();
if (logger.isTraceEnabled())
{
logger.trace("handle update receive command from commit '{}' to '{}'",
oldId.getName(), newId.getName());
}
}
else if (logger.isTraceEnabled())
{
logger.trace("handle receive command for commit '{}'", newId.getName());
}
File directory = rpack.getRepository().getDirectory();
String scriptName = null;
if (type == RepositoryHookType.POST_RECEIVE)
{
scriptName = FILE_HOOK_POST_RECEIVE;
}
else if (type == RepositoryHookType.PRE_RECEIVE)
{
scriptName = FILE_HOOK_PRE_RECEIVE;
}
if (scriptName != null)
{
File hookScript = getHookScript(directory, scriptName);
if (hookScript != null)
{
executeFileHook(rpack, rc, directory, hookScript, oldId, newId,
rc.getRefName());
}
}
fireHookEvent(rpack, rc, directory, oldId, newId, type);
}
/**
* Method description
*
*
*
* @param rpack
* @param rc
* @param message
*/
private void sendError(ReceivePack rpack, ReceiveCommand rc, String message)
{
rpack.sendError(PREFIX_MSG.concat(Util.nonNull(message)));
rc.setResult(ReceiveCommand.Result.REJECTED_OTHER_REASON);
}
//~--- get methods ----------------------------------------------------------
/**
* Method description
*
*
* @param directory
* @param name
*
* @return
*/
private File getHookScript(File directory, String name)
{
File baseFile = new File(directory,
FILE_HOOKDIRECTORY.concat(File.separator).concat(name));
return IOUtil.getScript(baseFile);
}
/**
* Method description
*
*
* @param rc
* @param type
*
* @return
*/
private boolean isReceiveable(ReceiveCommand rc, RepositoryHookType type)
{
//J-
return ((RepositoryHookType.PRE_RECEIVE == type) &&
(rc.getResult() == ReceiveCommand.Result.NOT_ATTEMPTED)) ||
((RepositoryHookType.POST_RECEIVE == type) &&
(rc.getResult() == ReceiveCommand.Result.OK));
//J+
}
/**
* Method description
*
*
* @param rc
*
* @return
*/
private boolean isUpdateCommand(ReceiveCommand rc)
{
return (rc.getType() == ReceiveCommand.Type.UPDATE)
|| (rc.getType() == ReceiveCommand.Type.UPDATE_NONFASTFORWARD);
}
//~--- fields ---------------------------------------------------------------
/** Field description */
private GitRepositoryHandler handler;
/** Field description */
private RepositoryManager repositoryManager;
}