Extract classes for transport within a JGit process
TransportLocal knows how to spin up a thread to allow two repositories in the same process to communicate using the wire protocol. However, it is still tied to local on-disk filesystems, and needs to be able to fork processes if not using the default git-{upload,receive}-pack implementation. Extract out the connection classes so they can be used by other transport implementations. Change-Id: I5db59086740735508c2e70a597c2d1a89014b072
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/*
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* Copyright (C) 2015, Google Inc.
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
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* names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.transport;
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import java.io.IOException;
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import java.io.PipedInputStream;
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import java.io.PipedOutputStream;
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import org.eclipse.jgit.errors.TransportException;
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import org.eclipse.jgit.internal.JGitText;
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import org.eclipse.jgit.lib.Repository;
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import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
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import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
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import org.eclipse.jgit.transport.resolver.UploadPackFactory;
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class InternalFetchConnection<C> extends BasePackFetchConnection {
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private Thread worker;
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public InternalFetchConnection(PackTransport transport,
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final UploadPackFactory<C> uploadPackFactory,
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final C req, final Repository remote) throws TransportException {
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super(transport);
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final PipedInputStream in_r;
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final PipedOutputStream in_w;
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final PipedInputStream out_r;
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final PipedOutputStream out_w;
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try {
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in_r = new PipedInputStream();
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in_w = new PipedOutputStream(in_r);
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out_r = new PipedInputStream() {
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// The client (BasePackFetchConnection) can write
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// a huge burst before it reads again. We need to
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// force the buffer to be big enough, otherwise it
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// will deadlock both threads.
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{
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buffer = new byte[MIN_CLIENT_BUFFER];
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}
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};
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out_w = new PipedOutputStream(out_r);
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} catch (IOException err) {
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remote.close();
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throw new TransportException(uri, JGitText.get().cannotConnectPipes, err);
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}
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worker = new Thread("JGit-Upload-Pack") { //$NON-NLS-1$
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public void run() {
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try {
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final UploadPack rp = uploadPackFactory.create(req, remote);
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rp.upload(out_r, in_w, null);
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} catch (ServiceNotEnabledException e) {
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// Ignored. Client cannot use this repository.
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} catch (ServiceNotAuthorizedException e) {
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// Ignored. Client cannot use this repository.
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} catch (IOException err) {
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// Client side of the pipes should report the problem.
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err.printStackTrace();
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} catch (RuntimeException err) {
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// Client side will notice we went away, and report.
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err.printStackTrace();
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} finally {
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try {
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out_r.close();
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} catch (IOException e2) {
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// Ignore close failure, we probably crashed above.
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}
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try {
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in_w.close();
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} catch (IOException e2) {
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// Ignore close failure, we probably crashed above.
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}
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remote.close();
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}
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}
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};
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worker.start();
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init(in_r, out_w);
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readAdvertisedRefs();
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}
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@Override
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public void close() {
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super.close();
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try {
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if (worker != null) {
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worker.join();
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}
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} catch (InterruptedException ie) {
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// Stop waiting and return anyway.
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} finally {
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worker = null;
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}
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}
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}
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@ -0,0 +1,131 @@
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/*
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* Copyright (C) 2015, Google Inc.
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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|
* notice, this list of conditions and the following disclaimer.
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*
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|
* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
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* names of its contributors may be used to endorse or promote
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|
* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.transport;
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import java.io.IOException;
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import java.io.PipedInputStream;
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import java.io.PipedOutputStream;
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import org.eclipse.jgit.errors.TransportException;
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import org.eclipse.jgit.internal.JGitText;
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import org.eclipse.jgit.lib.Repository;
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import org.eclipse.jgit.transport.resolver.ReceivePackFactory;
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import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
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import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
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class InternalPushConnection<C> extends BasePackPushConnection {
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private Thread worker;
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public InternalPushConnection(PackTransport transport,
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final ReceivePackFactory<C> receivePackFactory,
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final C req, final Repository remote) throws TransportException {
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super(transport);
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final PipedInputStream in_r;
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final PipedOutputStream in_w;
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final PipedInputStream out_r;
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final PipedOutputStream out_w;
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try {
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in_r = new PipedInputStream();
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in_w = new PipedOutputStream(in_r);
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out_r = new PipedInputStream();
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out_w = new PipedOutputStream(out_r);
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} catch (IOException err) {
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remote.close();
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throw new TransportException(uri, JGitText.get().cannotConnectPipes, err);
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}
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worker = new Thread("JGit-Receive-Pack") { //$NON-NLS-1$
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public void run() {
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try {
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final ReceivePack rp = receivePackFactory.create(req, remote);
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rp.receive(out_r, in_w, System.err);
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} catch (ServiceNotEnabledException e) {
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// Ignored. Client cannot use this repository.
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} catch (ServiceNotAuthorizedException e) {
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// Ignored. Client cannot use this repository.
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} catch (IOException err) {
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// Client side of the pipes should report the problem.
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} catch (RuntimeException err) {
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// Clients side will notice we went away, and report.
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} finally {
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try {
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out_r.close();
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} catch (IOException e2) {
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// Ignore close failure, we probably crashed above.
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}
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try {
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in_w.close();
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} catch (IOException e2) {
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// Ignore close failure, we probably crashed above.
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}
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remote.close();
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}
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}
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};
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worker.start();
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init(in_r, out_w);
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readAdvertisedRefs();
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}
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@Override
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public void close() {
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super.close();
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if (worker != null) {
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try {
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worker.join();
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} catch (InterruptedException ie) {
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// Stop waiting and return anyway.
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} finally {
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worker = null;
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}
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}
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}
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}
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@ -52,8 +52,6 @@
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import java.io.IOException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.OutputStream;
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import java.io.PipedInputStream;
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import java.io.PipedOutputStream;
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import java.util.Collections;
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import java.util.Collections;
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import java.util.Map;
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import java.util.Map;
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import java.util.Set;
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import java.util.Set;
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@ -65,6 +63,8 @@
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import org.eclipse.jgit.lib.Repository;
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import org.eclipse.jgit.lib.Repository;
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import org.eclipse.jgit.lib.RepositoryBuilder;
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import org.eclipse.jgit.lib.RepositoryBuilder;
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import org.eclipse.jgit.lib.RepositoryCache;
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import org.eclipse.jgit.lib.RepositoryCache;
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import org.eclipse.jgit.transport.resolver.ReceivePackFactory;
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import org.eclipse.jgit.transport.resolver.UploadPackFactory;
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import org.eclipse.jgit.util.FS;
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import org.eclipse.jgit.util.FS;
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import org.eclipse.jgit.util.io.MessageWriter;
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import org.eclipse.jgit.util.io.MessageWriter;
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import org.eclipse.jgit.util.io.SafeBufferedOutputStream;
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import org.eclipse.jgit.util.io.SafeBufferedOutputStream;
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@ -168,21 +168,44 @@ ReceivePack createReceivePack(final Repository dst) {
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return new ReceivePack(dst);
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return new ReceivePack(dst);
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}
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}
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@Override
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private Repository openRepo() throws TransportException {
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public FetchConnection openFetch() throws TransportException {
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try {
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final String up = getOptionUploadPack();
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return new RepositoryBuilder().setGitDir(remoteGitDir).build();
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if ("git-upload-pack".equals(up) || "git upload-pack".equals(up)) //$NON-NLS-1$ //$NON-NLS-2$
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} catch (IOException err) {
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return new InternalLocalFetchConnection();
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throw new TransportException(uri, JGitText.get().notAGitDirectory);
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return new ForkLocalFetchConnection();
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}
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}
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}
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@Override
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@Override
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public PushConnection openPush() throws NotSupportedException,
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public FetchConnection openFetch() throws TransportException {
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TransportException {
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final String up = getOptionUploadPack();
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if (!"git-upload-pack".equals(up) //$NON-NLS-1$
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&& !"git upload-pack".equals(up)) //$NON-NLS-1$
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return new ForkLocalFetchConnection();
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UploadPackFactory<Void> upf = new UploadPackFactory<Void>() {
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@Override
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public UploadPack create(Void req, Repository db) {
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return createUploadPack(db);
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}
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};
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return new InternalFetchConnection<Void>(this, upf, null, openRepo());
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}
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@Override
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public PushConnection openPush() throws TransportException {
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final String rp = getOptionReceivePack();
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final String rp = getOptionReceivePack();
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if ("git-receive-pack".equals(rp) || "git receive-pack".equals(rp)) //$NON-NLS-1$ //$NON-NLS-2$
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if (!"git-receive-pack".equals(rp) //$NON-NLS-1$
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return new InternalLocalPushConnection();
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&& !"git receive-pack".equals(rp)) //$NON-NLS-1$
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return new ForkLocalPushConnection();
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return new ForkLocalPushConnection();
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ReceivePackFactory<Void> rpf = new ReceivePackFactory<Void>() {
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@Override
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public ReceivePack create(Void req, Repository db) {
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return createReceivePack(db);
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}
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};
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return new InternalPushConnection<Void>(this, rpf, null, openRepo());
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}
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}
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@Override
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@Override
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|
@ -214,93 +237,6 @@ protected Process spawn(final String cmd)
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}
|
}
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}
|
}
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class InternalLocalFetchConnection extends BasePackFetchConnection {
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private Thread worker;
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InternalLocalFetchConnection() throws TransportException {
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super(TransportLocal.this);
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final Repository dst;
|
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||||||
try {
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dst = new RepositoryBuilder().setGitDir(remoteGitDir).build();
|
|
||||||
} catch (IOException err) {
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|
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throw new TransportException(uri, JGitText.get().notAGitDirectory);
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|
||||||
}
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|
||||||
|
|
||||||
final PipedInputStream in_r;
|
|
||||||
final PipedOutputStream in_w;
|
|
||||||
|
|
||||||
final PipedInputStream out_r;
|
|
||||||
final PipedOutputStream out_w;
|
|
||||||
try {
|
|
||||||
in_r = new PipedInputStream();
|
|
||||||
in_w = new PipedOutputStream(in_r);
|
|
||||||
|
|
||||||
out_r = new PipedInputStream() {
|
|
||||||
// The client (BasePackFetchConnection) can write
|
|
||||||
// a huge burst before it reads again. We need to
|
|
||||||
// force the buffer to be big enough, otherwise it
|
|
||||||
// will deadlock both threads.
|
|
||||||
{
|
|
||||||
buffer = new byte[MIN_CLIENT_BUFFER];
|
|
||||||
}
|
|
||||||
};
|
|
||||||
out_w = new PipedOutputStream(out_r);
|
|
||||||
} catch (IOException err) {
|
|
||||||
dst.close();
|
|
||||||
throw new TransportException(uri, JGitText.get().cannotConnectPipes, err);
|
|
||||||
}
|
|
||||||
|
|
||||||
worker = new Thread("JGit-Upload-Pack") { //$NON-NLS-1$
|
|
||||||
public void run() {
|
|
||||||
try {
|
|
||||||
final UploadPack rp = createUploadPack(dst);
|
|
||||||
rp.upload(out_r, in_w, null);
|
|
||||||
} catch (IOException err) {
|
|
||||||
// Client side of the pipes should report the problem.
|
|
||||||
err.printStackTrace();
|
|
||||||
} catch (RuntimeException err) {
|
|
||||||
// Clients side will notice we went away, and report.
|
|
||||||
err.printStackTrace();
|
|
||||||
} finally {
|
|
||||||
try {
|
|
||||||
out_r.close();
|
|
||||||
} catch (IOException e2) {
|
|
||||||
// Ignore close failure, we probably crashed above.
|
|
||||||
}
|
|
||||||
|
|
||||||
try {
|
|
||||||
in_w.close();
|
|
||||||
} catch (IOException e2) {
|
|
||||||
// Ignore close failure, we probably crashed above.
|
|
||||||
}
|
|
||||||
|
|
||||||
dst.close();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
};
|
|
||||||
worker.start();
|
|
||||||
|
|
||||||
init(in_r, out_w);
|
|
||||||
readAdvertisedRefs();
|
|
||||||
}
|
|
||||||
|
|
||||||
@Override
|
|
||||||
public void close() {
|
|
||||||
super.close();
|
|
||||||
|
|
||||||
if (worker != null) {
|
|
||||||
try {
|
|
||||||
worker.join();
|
|
||||||
} catch (InterruptedException ie) {
|
|
||||||
// Stop waiting and return anyway.
|
|
||||||
} finally {
|
|
||||||
worker = null;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
class ForkLocalFetchConnection extends BasePackFetchConnection {
|
class ForkLocalFetchConnection extends BasePackFetchConnection {
|
||||||
private Process uploadPack;
|
private Process uploadPack;
|
||||||
|
|
||||||
|
@ -354,83 +290,6 @@ public void close() {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
class InternalLocalPushConnection extends BasePackPushConnection {
|
|
||||||
private Thread worker;
|
|
||||||
|
|
||||||
InternalLocalPushConnection() throws TransportException {
|
|
||||||
super(TransportLocal.this);
|
|
||||||
|
|
||||||
final Repository dst;
|
|
||||||
try {
|
|
||||||
dst = new RepositoryBuilder().setGitDir(remoteGitDir).build();
|
|
||||||
} catch (IOException err) {
|
|
||||||
throw new TransportException(uri, JGitText.get().notAGitDirectory);
|
|
||||||
}
|
|
||||||
|
|
||||||
final PipedInputStream in_r;
|
|
||||||
final PipedOutputStream in_w;
|
|
||||||
|
|
||||||
final PipedInputStream out_r;
|
|
||||||
final PipedOutputStream out_w;
|
|
||||||
try {
|
|
||||||
in_r = new PipedInputStream();
|
|
||||||
in_w = new PipedOutputStream(in_r);
|
|
||||||
|
|
||||||
out_r = new PipedInputStream();
|
|
||||||
out_w = new PipedOutputStream(out_r);
|
|
||||||
} catch (IOException err) {
|
|
||||||
dst.close();
|
|
||||||
throw new TransportException(uri, JGitText.get().cannotConnectPipes, err);
|
|
||||||
}
|
|
||||||
|
|
||||||
worker = new Thread("JGit-Receive-Pack") { //$NON-NLS-1$
|
|
||||||
public void run() {
|
|
||||||
try {
|
|
||||||
final ReceivePack rp = createReceivePack(dst);
|
|
||||||
rp.receive(out_r, in_w, System.err);
|
|
||||||
} catch (IOException err) {
|
|
||||||
// Client side of the pipes should report the problem.
|
|
||||||
} catch (RuntimeException err) {
|
|
||||||
// Clients side will notice we went away, and report.
|
|
||||||
} finally {
|
|
||||||
try {
|
|
||||||
out_r.close();
|
|
||||||
} catch (IOException e2) {
|
|
||||||
// Ignore close failure, we probably crashed above.
|
|
||||||
}
|
|
||||||
|
|
||||||
try {
|
|
||||||
in_w.close();
|
|
||||||
} catch (IOException e2) {
|
|
||||||
// Ignore close failure, we probably crashed above.
|
|
||||||
}
|
|
||||||
|
|
||||||
dst.close();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
};
|
|
||||||
worker.start();
|
|
||||||
|
|
||||||
init(in_r, out_w);
|
|
||||||
readAdvertisedRefs();
|
|
||||||
}
|
|
||||||
|
|
||||||
@Override
|
|
||||||
public void close() {
|
|
||||||
super.close();
|
|
||||||
|
|
||||||
if (worker != null) {
|
|
||||||
try {
|
|
||||||
worker.join();
|
|
||||||
} catch (InterruptedException ie) {
|
|
||||||
// Stop waiting and return anyway.
|
|
||||||
} finally {
|
|
||||||
worker = null;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
class ForkLocalPushConnection extends BasePackPushConnection {
|
class ForkLocalPushConnection extends BasePackPushConnection {
|
||||||
private Process receivePack;
|
private Process receivePack;
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue