Browse Source
Adds a JGit built-in implementation of the "git lfs clean" filter. This filter should do the same as the one described in [1]. But since this filter is written in Java and can be called by JGit without forking new processes it should be much faster [1] https://github.com/github/git-lfs/blob/master/docs/man/git-lfs-clean.1.ronn Change-Id: If60e387e97870245b4bd765eda6717eb84cffb1dstable-4.6
Christian Halstrick
8 years ago
committed by
Matthias Sohn
12 changed files with 616 additions and 7 deletions
@ -1,7 +1,8 @@ |
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incorrectLONG_OBJECT_ID_LENGTH=Incorrect LONG_OBJECT_ID_LENGTH. |
incorrectLONG_OBJECT_ID_LENGTH=Incorrect LONG_OBJECT_ID_LENGTH. |
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inconsistentMediafileLength=mediafile {0} has unexpected length; expected {1} but found {2}. |
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invalidLongId=Invalid id: {0} |
invalidLongId=Invalid id: {0} |
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invalidLongIdLength=Invalid id length {0}; should be {1} |
invalidLongIdLength=Invalid id length {0}; should be {1} |
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requiredHashFunctionNotAvailable=Required hash function {0} not available. |
requiredHashFunctionNotAvailable=Required hash function {0} not available. |
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repositoryNotFound=Repository {0} not found |
repositoryNotFound=Repository {0} not found |
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repositoryReadOnly=Repository {0} is read-only |
repositoryReadOnly=Repository {0} is read-only |
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lfsUnavailable=LFS is not available for repository {0} |
lfsUnavailable=LFS is not available for repository {0} |
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@ -0,0 +1,176 @@ |
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/* |
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* Copyright (C) 2016, Christian Halstrick <christian.halstrick@sap.com> |
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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.lfs; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import java.nio.file.Files; |
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import java.nio.file.Path; |
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import java.nio.file.StandardOpenOption; |
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import java.security.DigestOutputStream; |
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import org.eclipse.jgit.attributes.FilterCommand; |
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import org.eclipse.jgit.attributes.FilterCommandFactory; |
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import org.eclipse.jgit.attributes.FilterCommandRegistry; |
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import org.eclipse.jgit.lfs.errors.CorruptMediaFile; |
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import org.eclipse.jgit.lfs.lib.Constants; |
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import org.eclipse.jgit.lfs.lib.LongObjectId; |
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import org.eclipse.jgit.lib.Repository; |
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import org.eclipse.jgit.util.FileUtils; |
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/** |
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* Built-in LFS clean filter |
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* |
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* When new content is about to be added to the git repository and this filter |
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* is configured for that content, then this filter will replace the original |
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* content with content of a so-called LFS pointer file. The pointer file |
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* content will then be added to the git repository. Additionally this filter |
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* writes the original content in a so-called 'media file' to '.git/lfs/objects/ |
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* <first-two-characters-of-contentid>/<rest-of-contentid>' |
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* |
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* @see <a href="https://github.com/github/git-lfs/blob/master/docs/spec.md">Git |
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* LFS Specification</a> |
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* @since 4.6 |
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*/ |
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public class CleanFilter extends FilterCommand { |
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/** |
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* The factory is responsible for creating instances of {@link CleanFilter} |
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*/ |
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public final static FilterCommandFactory FACTORY = new FilterCommandFactory() { |
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@Override |
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public FilterCommand create(Repository db, InputStream in, |
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OutputStream out) throws IOException { |
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return new CleanFilter(db, in, out); |
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} |
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}; |
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/** |
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* Registers this filter by calling |
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* {@link FilterCommandRegistry#register(String, FilterCommandFactory)} |
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*/ |
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public final static void register() { |
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FilterCommandRegistry.register( |
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org.eclipse.jgit.lib.Constants.BUILTIN_FILTER_PREFIX |
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+ "lfs/clean", //$NON-NLS-1$
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FACTORY); |
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} |
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// The OutputStream to a temporary file which will be renamed to mediafile
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// when the operation succeeds
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private OutputStream tmpOut; |
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// Used to compute the hash for the original content
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private DigestOutputStream dOut; |
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private Lfs lfsUtil; |
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// the size of the original content
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private long size; |
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// a temporary file into which the original content is written. When no
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// errors occur this file will be renamed to the mediafile
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private Path tmpFile; |
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/** |
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* @param db |
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* the repository |
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* @param in |
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* an {@link InputStream} providing the original content |
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* @param out |
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* the {@link OutputStream} into which the content of the pointer |
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* file should be written. That's the content which will be added |
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* to the git repository |
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* @throws IOException |
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* when the creation of the temporary file fails or when no |
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* {@link OutputStream} for this file can be created |
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*/ |
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public CleanFilter(Repository db, InputStream in, OutputStream out) |
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throws IOException { |
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super(in, out); |
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lfsUtil = new Lfs(db.getDirectory().toPath().resolve("lfs")); //$NON-NLS-1$
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Files.createDirectories(lfsUtil.getLfsTmpDir()); |
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tmpFile = lfsUtil.createTmpFile(); |
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tmpOut = Files.newOutputStream(tmpFile, |
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StandardOpenOption.CREATE); |
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this.dOut = new DigestOutputStream( |
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tmpOut, |
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Constants.newMessageDigest()); |
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} |
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public int run() throws IOException { |
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try { |
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int b = in.read(); |
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if (b != -1) { |
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dOut.write(b); |
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size++; |
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return 1; |
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} else { |
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dOut.close(); |
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tmpOut.close(); |
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LongObjectId loid = LongObjectId |
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.fromRaw(dOut.getMessageDigest().digest()); |
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Path mediaFile = lfsUtil.getMediaFile(loid); |
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if (Files.isRegularFile(mediaFile)) { |
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long fsSize = Files.size(mediaFile); |
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if (fsSize != size) { |
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throw new CorruptMediaFile(mediaFile, size, fsSize); |
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} |
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} else { |
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FileUtils.mkdirs(mediaFile.getParent().toFile(), true); |
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FileUtils.rename(tmpFile.toFile(), mediaFile.toFile()); |
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} |
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LfsPointer lfsPointer = new LfsPointer(loid, size); |
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lfsPointer.encode(out); |
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out.close(); |
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return -1; |
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} |
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} catch (IOException e) { |
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out.close(); |
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dOut.close(); |
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tmpOut.close(); |
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throw e; |
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} |
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} |
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} |
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@ -0,0 +1,124 @@ |
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/* |
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* Copyright (C) 2016, Christian Halstrick <christian.halstrick@sap.com> |
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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.lfs; |
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import java.io.IOException; |
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import java.nio.file.Files; |
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import java.nio.file.Path; |
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import org.eclipse.jgit.lfs.lib.LongObjectId; |
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/** |
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* Class which represents the lfs folder hierarchy inside a .git folder |
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* |
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* @since 4.6 |
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*/ |
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public class Lfs { |
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private Path root; |
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private Path objDir; |
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private Path tmpDir; |
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/** |
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* @param root |
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* the path to the LFS media directory. Will be "<repo>/.git/lfs" |
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*/ |
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public Lfs(Path root) { |
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this.root = root; |
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} |
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/** |
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* @return the path to the LFS directory |
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*/ |
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public Path getLfsRoot() { |
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return root; |
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} |
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/** |
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* @return the path to the temp directory used by LFS. Will be |
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* "<repo>/.git/lfs/tmp" |
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*/ |
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public Path getLfsTmpDir() { |
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if (tmpDir == null) { |
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tmpDir = root.resolve("tmp"); //$NON-NLS-1$
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} |
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return tmpDir; |
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} |
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/** |
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* @return the path to the object directory used by LFS. Will be |
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* "<repo>/.git/lfs/objects" |
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*/ |
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public Path getLfsObjDir() { |
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if (objDir == null) { |
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objDir = root.resolve("objects"); //$NON-NLS-1$
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} |
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return objDir; |
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} |
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/** |
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* @param id |
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* the id of the mediafile |
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* @return the file which stores the original content. This will be files |
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* underneath |
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* "<repo>/.git/lfs/objects/<firstTwoLettersOfID>/<remainingLettersOfID>" |
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*/ |
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public Path getMediaFile(LongObjectId id) { |
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String idStr = LongObjectId.toString(id); |
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return getLfsObjDir().resolve(idStr.substring(0, 2)) |
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.resolve(idStr.substring(2)); |
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} |
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/** |
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* Create a new temp file in the LFS directory |
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* |
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* @return a new temporary file in the LFS directory |
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* @throws IOException |
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* when the temp file could not be created |
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*/ |
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public Path createTmpFile() throws IOException { |
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return Files.createTempFile(getLfsTmpDir(), null, null); |
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} |
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} |
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@ -0,0 +1,121 @@ |
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/* |
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* Copyright (C) 2016, Christian Halstrick <christian.halstrick@sap.com> |
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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 |
||||||
|
* 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 |
||||||
|
* 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 |
||||||
|
* products derived from this software without specific prior |
||||||
|
* written permission. |
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|
* |
||||||
|
* 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 |
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|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||||
|
*/ |
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package org.eclipse.jgit.lfs; |
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import java.io.OutputStream; |
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import java.io.PrintStream; |
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import org.eclipse.jgit.lfs.lib.Constants; |
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import org.eclipse.jgit.lfs.lib.LongObjectId; |
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|
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/** |
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* Represents an LFS pointer file |
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* |
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* @since 4.6 |
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*/ |
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public class LfsPointer { |
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/** |
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* The version of the LfsPointer file format |
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*/ |
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public static final String VERSION = "https://git-lfs.github.com/spec/v1"; //$NON-NLS-1$
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/** |
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* The name of the hash function as used in the pointer files. This will |
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* evaluate to "sha256" |
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*/ |
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public static final String HASH_FUNCTION_NAME = Constants.LONG_HASH_FUNCTION |
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.toLowerCase().replace("-", ""); //$NON-NLS-1$ //$NON-NLS-2$
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|
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private LongObjectId oid; |
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|
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private long size; |
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|
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/** |
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* @param oid |
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* the id of the content |
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* @param size |
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* the size of the content |
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*/ |
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public LfsPointer(LongObjectId oid, long size) { |
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this.oid = oid; |
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this.size = size; |
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} |
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|
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/** |
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* @return the id of the content |
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*/ |
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public LongObjectId getOid() { |
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return oid; |
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} |
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/** |
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* @return the size of the content |
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*/ |
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public long getSize() { |
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return size; |
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} |
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|
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/** |
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* Encode this object into the LFS format defined by {@link #VERSION} |
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* |
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* @param out |
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* the {@link OutputStream} into which the encoded data should be |
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* written |
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|
*/ |
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public void encode(OutputStream out) { |
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|
try (PrintStream ps = new PrintStream(out)) { |
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ps.print("version "); //$NON-NLS-1$
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||||||
|
ps.println(VERSION); |
||||||
|
ps.print("oid " + HASH_FUNCTION_NAME + ":"); //$NON-NLS-1$ //$NON-NLS-2$
|
||||||
|
ps.println(LongObjectId.toString(oid)); |
||||||
|
ps.print("size "); //$NON-NLS-1$
|
||||||
|
ps.println(size); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
@Override |
||||||
|
public String toString() { |
||||||
|
return "LfsPointer: oid=" + LongObjectId.toString(oid) + ", size=" //$NON-NLS-1$ //$NON-NLS-2$
|
||||||
|
+ size; |
||||||
|
} |
||||||
|
} |
||||||
@ -0,0 +1,100 @@ |
|||||||
|
/* |
||||||
|
* Copyright (C) 2016, Christian Halstrick <christian.halstrick@sap.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.lfs.errors; |
||||||
|
|
||||||
|
import java.io.IOException; |
||||||
|
import java.nio.file.Path; |
||||||
|
import java.text.MessageFormat; |
||||||
|
|
||||||
|
import org.eclipse.jgit.lfs.internal.LfsText; |
||||||
|
|
||||||
|
/** |
||||||
|
* Thrown when a LFS mediafile is found which doesn't have the expected size |
||||||
|
* |
||||||
|
* @since 4.6 |
||||||
|
*/ |
||||||
|
public class CorruptMediaFile extends IOException { |
||||||
|
private static final long serialVersionUID = 1L; |
||||||
|
|
||||||
|
private Path mediaFile; |
||||||
|
|
||||||
|
private long expectedSize; |
||||||
|
|
||||||
|
private long size; |
||||||
|
|
||||||
|
/** |
||||||
|
* @param mediaFile |
||||||
|
* @param expectedSize |
||||||
|
* @param size |
||||||
|
*/ |
||||||
|
@SuppressWarnings("boxing") |
||||||
|
public CorruptMediaFile(Path mediaFile, long expectedSize, |
||||||
|
long size) { |
||||||
|
super(MessageFormat.format(LfsText.get().inconsistentMediafileLength, |
||||||
|
mediaFile, expectedSize, size)); |
||||||
|
this.mediaFile = mediaFile; |
||||||
|
this.expectedSize = expectedSize; |
||||||
|
this.size = size; |
||||||
|
} |
||||||
|
|
||||||
|
/** |
||||||
|
* @return the media file which seems to be corrupt |
||||||
|
*/ |
||||||
|
public Path getMediaFile() { |
||||||
|
return mediaFile; |
||||||
|
} |
||||||
|
|
||||||
|
/** |
||||||
|
* @return the expected size of the media file |
||||||
|
*/ |
||||||
|
public long getExpectedSize() { |
||||||
|
return expectedSize; |
||||||
|
} |
||||||
|
|
||||||
|
/** |
||||||
|
* @return the actual size of the media file in the file system |
||||||
|
*/ |
||||||
|
public long getSize() { |
||||||
|
return size; |
||||||
|
} |
||||||
|
} |
||||||
Loading…
Reference in new issue