/*
* Copyright (C) 2010, Chris Aniszczyk <caniszczyk@gmail.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.api;
import java.net.URISyntaxException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
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.NoRemoteRepositoryException;
import org.eclipse.jgit.errors.NotSupportedException;
import org.eclipse.jgit.errors.TransportException;
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.transport.FetchResult;
import org.eclipse.jgit.transport.RefSpec;
import org.eclipse.jgit.transport.TagOpt;
import org.eclipse.jgit.transport.Transport;
/**
* A class used to execute a {@code Fetch} command. It has setters for all
* supported options and arguments of this command and a {@link #call()} method
* to finally execute the command.
*
* @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-fetch.html"
* >Git documentation about Fetch</a>
*/
public class FetchCommand extends TransportCommand<FetchCommand, FetchResult> {
private String remote = Constants.DEFAULT_REMOTE_NAME;
private List<RefSpec> refSpecs;
private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;
private boolean checkFetchedObjects;
private Boolean removeDeletedRefs;
private boolean dryRun;
private boolean thin = Transport.DEFAULT_FETCH_THIN;
private TagOpt tagOption;
/**
* @param repo
*/
protected FetchCommand(Repository repo) {
super(repo);
refSpecs = new ArrayList<RefSpec>(3);
}
/**
* Executes the {@code fetch} command with all the options and parameters
* collected by the setter methods of this class. Each instance of this
* class should only be used for one invocation of the command (means: one
* call to {@link #call()})
*
* @return a {@link FetchResult} object representing the successful fetch
* result
* @throws InvalidRemoteException
* when called with an invalid remote uri
* @throws org.eclipse.jgit.api.errors.TransportException
* when an error occurs during transport
*/
public FetchResult call() throws GitAPIException, InvalidRemoteException,
org.eclipse.jgit.api.errors.TransportException {
checkCallable();
try (Transport transport = Transport.open(repo, remote)) {
transport.setCheckFetchedObjects(checkFetchedObjects);
transport.setRemoveDeletedRefs(isRemoveDeletedRefs());
transport.setDryRun(dryRun);
if (tagOption != null)
transport.setTagOpt(tagOption);
transport.setFetchThin(thin);
configure(transport);
FetchResult result = transport.fetch(monitor, refSpecs);
return result;
} catch (NoRemoteRepositoryException e) {
throw new InvalidRemoteException(MessageFormat.format(
JGitText.get().invalidRemote, remote), e);
} catch (TransportException e) {
throw new org.eclipse.jgit.api.errors.TransportException(
e.getMessage(), e);
} catch (URISyntaxException e) {
throw new InvalidRemoteException(MessageFormat.format(
JGitText.get().invalidRemote, remote));
} catch (NotSupportedException e) {
throw new JGitInternalException(
JGitText.get().exceptionCaughtDuringExecutionOfFetchCommand,
e);
}
}
/**
* 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 FetchCommand setRemote(String remote) {
checkCallable();
this.remote = remote;
return this;
}
/**
* @return the remote used for the remote operation
*/
public String getRemote() {
return remote;
}
/**
* @return the timeout used for the fetch operation
*/
public int getTimeout() {
return timeout;
}
/**
* @return whether to check received objects checked for validity
*/
public boolean isCheckFetchedObjects() {
return checkFetchedObjects;
}
/**
* If set to true, objects received will be checked for validity
*
* @param checkFetchedObjects
* @return {@code this}
*/
public FetchCommand setCheckFetchedObjects(boolean checkFetchedObjects) {
checkCallable();
this.checkFetchedObjects = checkFetchedObjects;
return this;
}
/**
* @return whether or not to remove refs which no longer exist in the source
*/
public boolean isRemoveDeletedRefs() {
if (removeDeletedRefs != null)
return removeDeletedRefs.booleanValue();
else { // fall back to configuration
boolean result = false;
StoredConfig config = repo.getConfig();
result = config.getBoolean(ConfigConstants.CONFIG_FETCH_SECTION,
null, ConfigConstants.CONFIG_KEY_PRUNE, result);
result = config.getBoolean(ConfigConstants.CONFIG_REMOTE_SECTION,
remote, ConfigConstants.CONFIG_KEY_PRUNE, result);
return result;
}
}
/**
* If set to true, refs are removed which no longer exist in the source
*
* @param removeDeletedRefs
* @return {@code this}
*/
public FetchCommand setRemoveDeletedRefs(boolean removeDeletedRefs) {
checkCallable();
this.removeDeletedRefs = Boolean.valueOf(removeDeletedRefs);
return this;
}
/**
* @return the progress monitor for the fetch operation
*/
public ProgressMonitor getProgressMonitor() {
return monitor;
}
/**
* The progress monitor associated with the fetch operation. By default,
* this is set to <code>NullProgressMonitor</code>
*
* @see NullProgressMonitor
*
* @param monitor
* @return {@code this}
*/
public FetchCommand setProgressMonitor(ProgressMonitor monitor) {
checkCallable();
if (monitor == null) {
monitor = NullProgressMonitor.INSTANCE;
}
this.monitor = monitor;
return this;
}
/**
* @return the ref specs
*/
public List<RefSpec> getRefSpecs() {
return refSpecs;
}
/**
* The ref specs to be used in the fetch operation
*
* @param specs
* @return {@code this}
*/
public FetchCommand setRefSpecs(RefSpec... specs) {
checkCallable();
this.refSpecs.clear();
for (RefSpec spec : specs)
refSpecs.add(spec);
return this;
}
/**
* The ref specs to be used in the fetch operation
*
* @param specs
* @return {@code this}
*/
public FetchCommand setRefSpecs(List<RefSpec> specs) {
checkCallable();
this.refSpecs.clear();
this.refSpecs.addAll(specs);
return this;
}
/**
* @return the dry run preference for the fetch operation
*/
public boolean isDryRun() {
return dryRun;
}
/**
* Sets whether the fetch operation should be a dry run
*
* @param dryRun
* @return {@code this}
*/
public FetchCommand setDryRun(boolean dryRun) {
checkCallable();
this.dryRun = dryRun;
return this;
}
/**
* @return the thin-pack preference for fetch operation
*/
public boolean isThin() {
return thin;
}
/**
* Sets the thin-pack preference for fetch operation.
*
* Default setting is Transport.DEFAULT_FETCH_THIN
*
* @param thin
* @return {@code this}
*/
public FetchCommand setThin(boolean thin) {
checkCallable();
this.thin = thin;
return this;
}
/**
* Sets the specification of annotated tag behavior during fetch
*
* @param tagOpt
* @return {@code this}
*/
public FetchCommand setTagOpt(TagOpt tagOpt) {
checkCallable();
this.tagOption = tagOpt;
return this;
}
}