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Update DfsObjDatabase API to open/write by pack extension.

Previously, the DfsObjDatabase had a hardcoded getPackFile() and
getPackIndex() methods which opens a .pack and .idx file, respectively.
A future change to add a bitmap index will need to be stored in a
parallel .bitmap file. Update the DfsObjDatabase to support opening and
writing of files for any pack extension.

Change-Id: I7c403b501e242096a2d435f6865d6025a9f86108
stable-2.3
Colby Ranger 12 years ago
parent
commit
5d3c2b3def
  1. 5
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsGarbageCollector.java
  2. 7
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsInserter.java
  3. 60
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsObjDatabase.java
  4. 3
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsOutputStream.java
  5. 6
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackCompactor.java
  6. 35
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackDescription.java
  7. 15
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackFile.java
  8. 3
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackParser.java
  9. 3
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsReader.java
  10. 43
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/InMemoryRepository.java
  11. 57
      org.eclipse.jgit/src/org/eclipse/jgit/storage/pack/PackConstants.java

5
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsGarbageCollector.java

@ -65,6 +65,7 @@ import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.storage.dfs.DfsObjDatabase.PackSource; import org.eclipse.jgit.storage.dfs.DfsObjDatabase.PackSource;
import org.eclipse.jgit.storage.file.PackIndex; import org.eclipse.jgit.storage.file.PackIndex;
import org.eclipse.jgit.storage.pack.PackConfig; import org.eclipse.jgit.storage.pack.PackConfig;
import org.eclipse.jgit.storage.pack.PackConstants;
import org.eclipse.jgit.storage.pack.PackWriter; import org.eclipse.jgit.storage.pack.PackWriter;
import org.eclipse.jgit.util.io.CountingOutputStream; import org.eclipse.jgit.util.io.CountingOutputStream;
@ -318,14 +319,14 @@ public class DfsGarbageCollector {
DfsPackDescription pack = repo.getObjectDatabase().newPack(source); DfsPackDescription pack = repo.getObjectDatabase().newPack(source);
newPackDesc.add(pack); newPackDesc.add(pack);
out = objdb.writePackFile(pack); out = objdb.writeFile(pack, PackConstants.PACK_EXT);
try { try {
pw.writePack(pm, pm, out); pw.writePack(pm, pm, out);
} finally { } finally {
out.close(); out.close();
} }
out = objdb.writePackIndex(pack); out = objdb.writeFile(pack, PackConstants.PACK_INDEX_EXT);
try { try {
CountingOutputStream cnt = new CountingOutputStream(out); CountingOutputStream cnt = new CountingOutputStream(out);
pw.writeIndex(cnt); pw.writeIndex(cnt);

7
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsInserter.java

@ -43,6 +43,9 @@
package org.eclipse.jgit.storage.dfs; package org.eclipse.jgit.storage.dfs;
import static org.eclipse.jgit.storage.pack.PackConstants.PACK_EXT;
import static org.eclipse.jgit.storage.pack.PackConstants.PACK_INDEX_EXT;
import java.io.EOFException; import java.io.EOFException;
import java.io.IOException; import java.io.IOException;
import java.io.InputStream; import java.io.InputStream;
@ -220,7 +223,7 @@ public class DfsInserter extends ObjectInserter {
rollback = true; rollback = true;
packDsc = db.newPack(DfsObjDatabase.PackSource.INSERT); packDsc = db.newPack(DfsObjDatabase.PackSource.INSERT);
packOut = new PackStream(db.writePackFile(packDsc)); packOut = new PackStream(db.writeFile(packDsc, PACK_EXT));
packKey = new DfsPackKey(); packKey = new DfsPackKey();
// Write the header as though it were a single object pack. // Write the header as though it were a single object pack.
@ -250,7 +253,7 @@ public class DfsInserter extends ObjectInserter {
packIndex = PackIndex.read(buf.openInputStream()); packIndex = PackIndex.read(buf.openInputStream());
} }
DfsOutputStream os = db.writePackIndex(pack); DfsOutputStream os = db.writeFile(pack, PACK_INDEX_EXT);
try { try {
CountingOutputStream cnt = new CountingOutputStream(os); CountingOutputStream cnt = new CountingOutputStream(os);
if (buf != null) if (buf != null)

60
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsObjDatabase.java

@ -264,62 +264,40 @@ public abstract class DfsObjDatabase extends ObjectDatabase {
protected abstract List<DfsPackDescription> listPacks() throws IOException; protected abstract List<DfsPackDescription> listPacks() throws IOException;
/** /**
* Open a pack file for reading. * Open a pack, pack index, or other related file for reading.
* *
* @param desc * @param desc
* description of pack to read. This is an instance previously * description of pack related to the data that will be read.
* obtained from {@link #listPacks()}, but not necessarily from * This is an instance previously obtained from
* the same DfsObjDatabase instance. * {@link #listPacks()}, but not necessarily from the same
* @return channel to read the pack file. * DfsObjDatabase instance.
* @param ext
* file extension that will be read i.e "pack" or "idx".
* @return channel to read the file.
* @throws FileNotFoundException * @throws FileNotFoundException
* the file does not exist. * the file does not exist.
* @throws IOException * @throws IOException
* the file cannot be opened. * the file cannot be opened.
*/ */
protected abstract ReadableChannel openPackFile(DfsPackDescription desc) protected abstract ReadableChannel openFile(
DfsPackDescription desc, String ext)
throws FileNotFoundException, IOException; throws FileNotFoundException, IOException;
/** /**
* Open a pack index for reading. * Open a pack, pack index, or other related file for writing.
* *
* @param desc * @param desc
* description of index to read. This is an instance previously * description of pack related to the data that will be written.
* obtained from {@link #listPacks()}, but not necessarily from * This is an instance previously obtained from
* the same DfsObjDatabase instance. * {@link #newPack(PackSource)}.
* @return channel to read the pack file. * @param ext
* @throws FileNotFoundException * file extension that will be written i.e "pack" or "idx".
* the file does not exist. * @return channel to write the file.
* @throws IOException
* the file cannot be opened.
*/
protected abstract ReadableChannel openPackIndex(DfsPackDescription desc)
throws FileNotFoundException, IOException;
/**
* Open a pack file for writing.
*
* @param desc
* description of pack to write. This is an instance previously
* obtained from {@link #newPack(PackSource)}.
* @return channel to write the pack file.
* @throws IOException * @throws IOException
* the file cannot be opened. * the file cannot be opened.
*/ */
protected abstract DfsOutputStream writePackFile(DfsPackDescription desc) protected abstract DfsOutputStream writeFile(
throws IOException; DfsPackDescription desc, String ext) throws IOException;
/**
* Open a pack index for writing.
*
* @param desc
* description of index to write. This is an instance previously
* obtained from {@link #newPack(PackSource)}.
* @return channel to write the index file.
* @throws IOException
* the file cannot be opened.
*/
protected abstract DfsOutputStream writePackIndex(DfsPackDescription desc)
throws IOException;
void addPack(DfsPackFile newPack) throws IOException { void addPack(DfsPackFile newPack) throws IOException {
PackList o, n; PackList o, n;

3
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsOutputStream.java

@ -50,8 +50,7 @@ import java.nio.ByteBuffer;
/** /**
* Output stream to create a file on the DFS. * Output stream to create a file on the DFS.
* *
* @see DfsObjDatabase#writePackFile(DfsPackDescription) * @see DfsObjDatabase#writeFile(DfsPackDescription, String)
* @see DfsObjDatabase#writePackIndex(DfsPackDescription)
*/ */
public abstract class DfsOutputStream extends OutputStream { public abstract class DfsOutputStream extends OutputStream {
/** /**

6
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackCompactor.java

@ -44,6 +44,8 @@
package org.eclipse.jgit.storage.dfs; package org.eclipse.jgit.storage.dfs;
import static org.eclipse.jgit.storage.dfs.DfsObjDatabase.PackSource.COMPACT; import static org.eclipse.jgit.storage.dfs.DfsObjDatabase.PackSource.COMPACT;
import static org.eclipse.jgit.storage.pack.PackConstants.PACK_EXT;
import static org.eclipse.jgit.storage.pack.PackConstants.PACK_INDEX_EXT;
import java.io.IOException; import java.io.IOException;
import java.util.ArrayList; import java.util.ArrayList;
@ -283,7 +285,7 @@ public class DfsPackCompactor {
private void writePack(DfsObjDatabase objdb, DfsPackDescription pack, private void writePack(DfsObjDatabase objdb, DfsPackDescription pack,
PackWriter pw, ProgressMonitor pm) throws IOException { PackWriter pw, ProgressMonitor pm) throws IOException {
DfsOutputStream out = objdb.writePackFile(pack); DfsOutputStream out = objdb.writeFile(pack, PACK_EXT);
try { try {
CountingOutputStream cnt = new CountingOutputStream(out); CountingOutputStream cnt = new CountingOutputStream(out);
pw.writePack(pm, pm, cnt); pw.writePack(pm, pm, cnt);
@ -296,7 +298,7 @@ public class DfsPackCompactor {
private void writeIndex(DfsObjDatabase objdb, DfsPackDescription pack, private void writeIndex(DfsObjDatabase objdb, DfsPackDescription pack,
PackWriter pw) throws IOException { PackWriter pw) throws IOException {
DfsOutputStream out = objdb.writePackIndex(pack); DfsOutputStream out = objdb.writeFile(pack, PACK_INDEX_EXT);
try { try {
CountingOutputStream cnt = new CountingOutputStream(out); CountingOutputStream cnt = new CountingOutputStream(out);
pw.writeIndex(cnt); pw.writeIndex(cnt);

35
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackDescription.java

@ -47,6 +47,7 @@ import java.util.Set;
import org.eclipse.jgit.lib.ObjectId; import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.storage.dfs.DfsObjDatabase.PackSource; import org.eclipse.jgit.storage.dfs.DfsObjDatabase.PackSource;
import org.eclipse.jgit.storage.pack.PackConstants;
import org.eclipse.jgit.storage.pack.PackWriter; import org.eclipse.jgit.storage.pack.PackWriter;
/** /**
@ -81,9 +82,9 @@ public class DfsPackDescription implements Comparable<DfsPackDescription> {
/** /**
* Initialize a description by pack name and repository. * Initialize a description by pack name and repository.
* <p> * <p>
* The corresponding index file is assumed to exist and end with ".idx" * The corresponding index file is assumed to exist. If this is not true
* instead of ".pack". If this is not true implementors must extend the * implementors must extend the class and override
* class and override {@link #getIndexName()}. * {@link #getFileName(String)}.
* <p> * <p>
* Callers should also try to fill in other fields if they are reasonably * Callers should also try to fill in other fields if they are reasonably
* free to access at the time this instance is being initialized. * free to access at the time this instance is being initialized.
@ -95,7 +96,8 @@ public class DfsPackDescription implements Comparable<DfsPackDescription> {
*/ */
public DfsPackDescription(DfsRepositoryDescription repoDesc, String name) { public DfsPackDescription(DfsRepositoryDescription repoDesc, String name) {
this.repoDesc = repoDesc; this.repoDesc = repoDesc;
this.packName = name; int dot = name.lastIndexOf('.');
this.packName = (dot < 0) ? name : name.substring(0, dot);
} }
/** @return description of the repository. */ /** @return description of the repository. */
@ -103,18 +105,13 @@ public class DfsPackDescription implements Comparable<DfsPackDescription> {
return repoDesc; return repoDesc;
} }
/** @return name of the pack file. */ /**
public String getPackName() { * @param ext
return packName; * the file extension
} * @return name of the file.
* */
/** @return name of the index file. */ public String getFileName(String ext) {
public String getIndexName() { return packName + '.' + ext;
String name = getPackName();
int dot = name.lastIndexOf('.');
if (dot < 0)
dot = name.length();
return name.substring(0, dot) + ".idx"; //$NON-NLS-1$
} }
/** @return the source of the pack. */ /** @return the source of the pack. */
@ -261,14 +258,14 @@ public class DfsPackDescription implements Comparable<DfsPackDescription> {
@Override @Override
public int hashCode() { public int hashCode() {
return getPackName().hashCode(); return packName.hashCode();
} }
@Override @Override
public boolean equals(Object b) { public boolean equals(Object b) {
if (b instanceof DfsPackDescription) { if (b instanceof DfsPackDescription) {
DfsPackDescription desc = (DfsPackDescription) b; DfsPackDescription desc = (DfsPackDescription) b;
return getPackName().equals(desc.getPackName()) && return packName.equals(desc.packName) &&
getRepositoryDescription().equals(desc.getRepositoryDescription()); getRepositoryDescription().equals(desc.getRepositoryDescription());
} }
return false; return false;
@ -299,6 +296,6 @@ public class DfsPackDescription implements Comparable<DfsPackDescription> {
@Override @Override
public String toString() { public String toString() {
return getPackName(); return getFileName(PackConstants.PACK_EXT);
} }
} }

15
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackFile.java

@ -45,6 +45,9 @@
package org.eclipse.jgit.storage.dfs; package org.eclipse.jgit.storage.dfs;
import static org.eclipse.jgit.storage.pack.PackConstants.PACK_EXT;
import static org.eclipse.jgit.storage.pack.PackConstants.PACK_INDEX_EXT;
import java.io.BufferedInputStream; import java.io.BufferedInputStream;
import java.io.EOFException; import java.io.EOFException;
import java.io.IOException; import java.io.IOException;
@ -187,7 +190,7 @@ public final class DfsPackFile {
} }
private String getPackName() { private String getPackName() {
return packDesc.getPackName(); return packDesc.getFileName(PACK_EXT);
} }
void setBlockSize(int newSize) { void setBlockSize(int newSize) {
@ -229,7 +232,7 @@ public final class DfsPackFile {
PackIndex idx; PackIndex idx;
try { try {
ReadableChannel rc = ctx.db.openPackIndex(packDesc); ReadableChannel rc = ctx.db.openFile(packDesc, PACK_INDEX_EXT);
try { try {
InputStream in = Channels.newInputStream(rc); InputStream in = Channels.newInputStream(rc);
int wantSize = 8192; int wantSize = 8192;
@ -246,13 +249,15 @@ public final class DfsPackFile {
} catch (EOFException e) { } catch (EOFException e) {
invalid = true; invalid = true;
IOException e2 = new IOException(MessageFormat.format( IOException e2 = new IOException(MessageFormat.format(
DfsText.get().shortReadOfIndex, packDesc.getIndexName())); DfsText.get().shortReadOfIndex,
packDesc.getFileName(PACK_INDEX_EXT)));
e2.initCause(e); e2.initCause(e);
throw e2; throw e2;
} catch (IOException e) { } catch (IOException e) {
invalid = true; invalid = true;
IOException e2 = new IOException(MessageFormat.format( IOException e2 = new IOException(MessageFormat.format(
DfsText.get().cannotReadIndex, packDesc.getIndexName())); DfsText.get().cannotReadIndex,
packDesc.getFileName(PACK_INDEX_EXT)));
e2.initCause(e); e2.initCause(e);
throw e2; throw e2;
} }
@ -616,7 +621,7 @@ public final class DfsPackFile {
throw new PackInvalidException(getPackName()); throw new PackInvalidException(getPackName());
boolean close = true; boolean close = true;
ReadableChannel rc = ctx.db.openPackFile(packDesc); ReadableChannel rc = ctx.db.openFile(packDesc, PACK_EXT);
try { try {
// If the block alignment is not yet known, discover it. Prefer the // If the block alignment is not yet known, discover it. Prefer the
// larger size from either the cache or the file itself. // larger size from either the cache or the file itself.

3
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackParser.java

@ -58,6 +58,7 @@ import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ProgressMonitor; import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.storage.file.PackIndex; import org.eclipse.jgit.storage.file.PackIndex;
import org.eclipse.jgit.storage.file.PackLock; import org.eclipse.jgit.storage.file.PackLock;
import org.eclipse.jgit.storage.pack.PackConstants;
import org.eclipse.jgit.transport.PackParser; import org.eclipse.jgit.transport.PackParser;
import org.eclipse.jgit.transport.PackedObjectInfo; import org.eclipse.jgit.transport.PackedObjectInfo;
@ -205,7 +206,7 @@ public class DfsPackParser extends PackParser {
packDsc = objdb.newPack(DfsObjDatabase.PackSource.RECEIVE); packDsc = objdb.newPack(DfsObjDatabase.PackSource.RECEIVE);
packKey = new DfsPackKey(); packKey = new DfsPackKey();
out = objdb.writePackFile(packDsc); out = objdb.writeFile(packDsc, PackConstants.PACK_EXT);
int size = out.blockSize(); int size = out.blockSize();
if (size <= 0) if (size <= 0)
size = blockCache.getBlockSize(); size = blockCache.getBlockSize();

3
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsReader.java

@ -47,6 +47,7 @@ package org.eclipse.jgit.storage.dfs;
import static org.eclipse.jgit.lib.Constants.OBJECT_ID_LENGTH; import static org.eclipse.jgit.lib.Constants.OBJECT_ID_LENGTH;
import static org.eclipse.jgit.lib.Constants.OBJ_BLOB; import static org.eclipse.jgit.lib.Constants.OBJ_BLOB;
import static org.eclipse.jgit.lib.Constants.OBJ_TREE; import static org.eclipse.jgit.lib.Constants.OBJ_TREE;
import static org.eclipse.jgit.storage.pack.PackConstants.PACK_EXT;
import java.io.IOException; import java.io.IOException;
import java.io.InterruptedIOException; import java.io.InterruptedIOException;
@ -661,7 +662,7 @@ public final class DfsReader extends ObjectReader implements ObjectReuseAsIs {
pack.setInvalid(); pack.setInvalid();
throw new IOException(MessageFormat.format( throw new IOException(MessageFormat.format(
JGitText.get().packfileCorruptionDetected, JGitText.get().packfileCorruptionDetected,
pack.getPackDescription().getPackName())); pack.getPackDescription().getFileName(PACK_EXT)));
} }
} }
} }

43
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/InMemoryRepository.java

@ -6,7 +6,9 @@ import java.io.IOException;
import java.nio.ByteBuffer; import java.nio.ByteBuffer;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Collection; import java.util.Collection;
import java.util.HashMap;
import java.util.List; import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap; import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicInteger; import java.util.concurrent.atomic.AtomicInteger;
@ -101,50 +103,31 @@ public class InMemoryRepository extends DfsRepository {
} }
@Override @Override
protected ReadableChannel openPackFile(DfsPackDescription desc) protected ReadableChannel openFile(DfsPackDescription desc, String ext)
throws FileNotFoundException { throws FileNotFoundException, IOException {
MemPack memPack = (MemPack) desc; MemPack memPack = (MemPack) desc;
if (memPack.packFile == null) byte[] file = memPack.fileMap.get(ext);
throw new FileNotFoundException(desc.getPackName()); if (file == null)
return new ByteArrayReadableChannel(memPack.packFile); throw new FileNotFoundException(desc.getFileName(ext));
return new ByteArrayReadableChannel(file);
} }
@Override @Override
protected ReadableChannel openPackIndex(DfsPackDescription desc) protected DfsOutputStream writeFile(
throws FileNotFoundException { DfsPackDescription desc, final String ext) throws IOException {
MemPack memPack = (MemPack) desc;
if (memPack.packIndex == null)
throw new FileNotFoundException(desc.getIndexName());
return new ByteArrayReadableChannel(memPack.packIndex);
}
@Override
protected DfsOutputStream writePackFile(DfsPackDescription desc) {
final MemPack memPack = (MemPack) desc;
return new Out() {
@Override
public void flush() {
memPack.packFile = getData();
}
};
}
@Override
protected DfsOutputStream writePackIndex(DfsPackDescription desc) {
final MemPack memPack = (MemPack) desc; final MemPack memPack = (MemPack) desc;
return new Out() { return new Out() {
@Override @Override
public void flush() { public void flush() {
memPack.packIndex = getData(); memPack.fileMap.put(ext, getData());
} }
}; };
} }
} }
private static class MemPack extends DfsPackDescription { private static class MemPack extends DfsPackDescription {
private byte[] packFile; private final Map<String, byte[]>
fileMap = new HashMap<String, byte[]>();
private byte[] packIndex;
MemPack(String name, DfsRepositoryDescription repoDesc) { MemPack(String name, DfsRepositoryDescription repoDesc) {
super(repoDesc, name); super(repoDesc, name);

57
org.eclipse.jgit/src/org/eclipse/jgit/storage/pack/PackConstants.java

@ -0,0 +1,57 @@
/*
* Copyright (C) 2013, Google Inc.
* 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.storage.pack;
/** Misc. constants used with pack files. */
public class PackConstants {
/** A pack file extension. */
public static final String PACK_EXT = "pack"; //$NON-NLS-1$
/** A pack index file extension. */
public static final String PACK_INDEX_EXT = "idx"; //$NON-NLS-1$
private PackConstants() {
}
}
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