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Merge branch 'stable-5.7' 

* stable-5.7:
  ObjectDirectoryInserter: Open FileOutputStream in try-with-resource
  ObjectDirectoryInserter: Remove redundant 'throws' declarations
  ObjectDirectory: Further clean up insertUnpackedObject
  ObjectDirectory: Explicitly handle NoSuchFileException
  ObjectDirectory: Fail immediately when atomic move is not supported

Change-Id: I05186baa517388680fcc6825c940c4c772f26d32
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
master
David Pursehouse 5 years ago
parent
18050b569f c0c7f445f4
commit
1b4b05d4a3
2 changed files with 51 additions and 54 deletions
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  1. 65
      org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
  2. 40
      org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectoryInserter.java

65
org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
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@ -19,8 +19,8 @@ import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.nio.file.AtomicMoveNotSupportedException;
import java.nio.file.Files;
import java.nio.file.NoSuchFileException;
import java.nio.file.StandardCopyOption;
import java.text.MessageFormat;
import java.util.ArrayList;
@ -685,47 +685,46 @@ public class ObjectDirectory extends FileObjectDatabase {
FileUtils.delete(tmp, FileUtils.RETRY);
return InsertLooseObjectResult.EXISTS_LOOSE;
}
try {
Files.move(FileUtils.toPath(tmp), FileUtils.toPath(dst),
StandardCopyOption.ATOMIC_MOVE);
dst.setReadOnly();
unpackedObjectCache.add(id);
return InsertLooseObjectResult.INSERTED;
} catch (AtomicMoveNotSupportedException e) {
LOG.error(e.getMessage(), e);
return tryMove(tmp, dst, id);
} catch (NoSuchFileException e) {
// It's possible the directory doesn't exist yet as the object
// directories are always lazily created. Note that we try the
// rename/move first as the directory likely does exist.
//
// Create the directory.
//
FileUtils.mkdir(dst.getParentFile(), true);
} catch (IOException e) {
// ignore
// Any other IO error is considered a failure.
//
LOG.error(e.getMessage(), e);
FileUtils.delete(tmp, FileUtils.RETRY);
return InsertLooseObjectResult.FAILURE;
}
// Maybe the directory doesn't exist yet as the object
// directories are always lazily created. Note that we
// try the rename first as the directory likely does exist.
//
FileUtils.mkdir(dst.getParentFile(), true);
try {
Files.move(FileUtils.toPath(tmp), FileUtils.toPath(dst),
StandardCopyOption.ATOMIC_MOVE);
dst.setReadOnly();
unpackedObjectCache.add(id);
return InsertLooseObjectResult.INSERTED;
} catch (AtomicMoveNotSupportedException e) {
LOG.error(e.getMessage(), e);
return tryMove(tmp, dst, id);
} catch (IOException e) {
LOG.debug(e.getMessage(), e);
}
if (!createDuplicate && has(id)) {
// The object failed to be renamed into its proper location and
// it doesn't exist in the repository either. We really don't
// know what went wrong, so fail.
//
LOG.error(e.getMessage(), e);
FileUtils.delete(tmp, FileUtils.RETRY);
return InsertLooseObjectResult.EXISTS_PACKED;
return InsertLooseObjectResult.FAILURE;
}
}
// The object failed to be renamed into its proper
// location and it doesn't exist in the repository
// either. We really don't know what went wrong, so
// fail.
//
FileUtils.delete(tmp, FileUtils.RETRY);
return InsertLooseObjectResult.FAILURE;
private InsertLooseObjectResult tryMove(File tmp, File dst,
ObjectId id)
throws IOException {
Files.move(FileUtils.toPath(tmp), FileUtils.toPath(dst),
StandardCopyOption.ATOMIC_MOVE);
dst.setReadOnly();
unpackedObjectCache.add(id);
return InsertLooseObjectResult.INSERTED;
}
boolean searchPacksAgain(PackList old) {

40
org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectoryInserter.java
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@ -14,7 +14,6 @@ package org.eclipse.jgit.internal.storage.file;
import java.io.EOFException;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FilterOutputStream;
import java.io.IOException;
@ -116,7 +115,7 @@ class ObjectDirectoryInserter extends ObjectInserter {
private ObjectId insertOneObject(
File tmp, ObjectId id, boolean createDuplicate)
throws IOException, ObjectWritingException {
throws IOException {
switch (db.insertUnpackedObject(tmp, id, createDuplicate)) {
case INSERTED:
case EXISTS_PACKED:
@ -163,18 +162,16 @@ class ObjectDirectoryInserter extends ObjectInserter {
}
}
@SuppressWarnings("resource" /* java 7 */)
private File toTemp(final SHA1 md, final int type, long len,
final InputStream is) throws IOException, FileNotFoundException,
Error {
final InputStream is) throws IOException {
boolean delete = true;
File tmp = newTempFile();
try {
FileOutputStream fOut = new FileOutputStream(tmp);
try (FileOutputStream fOut = new FileOutputStream(tmp)) {
try {
OutputStream out = fOut;
if (config.getFSyncObjectFiles())
if (config.getFSyncObjectFiles()) {
out = Channels.newOutputStream(fOut.getChannel());
}
DeflaterOutputStream cOut = compress(out);
SHA1OutputStream dOut = new SHA1OutputStream(cOut, md);
writeHeader(dOut, type, len);
@ -182,53 +179,54 @@ class ObjectDirectoryInserter extends ObjectInserter {
final byte[] buf = buffer();
while (len > 0) {
int n = is.read(buf, 0, (int) Math.min(len, buf.length));
if (n <= 0)
if (n <= 0) {
throw shortInput(len);
}
dOut.write(buf, 0, n);
len -= n;
}
dOut.flush();
cOut.finish();
} finally {
if (config.getFSyncObjectFiles())
if (config.getFSyncObjectFiles()) {
fOut.getChannel().force(true);
fOut.close();
}
}
delete = false;
return tmp;
} finally {
if (delete)
if (delete) {
FileUtils.delete(tmp, FileUtils.RETRY);
}
}
}
@SuppressWarnings("resource" /* java 7 */)
private File toTemp(final int type, final byte[] buf, final int pos,
final int len) throws IOException, FileNotFoundException {
final int len) throws IOException {
boolean delete = true;
File tmp = newTempFile();
try {
FileOutputStream fOut = new FileOutputStream(tmp);
try (FileOutputStream fOut = new FileOutputStream(tmp)) {
try {
OutputStream out = fOut;
if (config.getFSyncObjectFiles())
if (config.getFSyncObjectFiles()) {
out = Channels.newOutputStream(fOut.getChannel());
}
DeflaterOutputStream cOut = compress(out);
writeHeader(cOut, type, len);
cOut.write(buf, pos, len);
cOut.finish();
} finally {
if (config.getFSyncObjectFiles())
if (config.getFSyncObjectFiles()) {
fOut.getChannel().force(true);
fOut.close();
}
}
delete = false;
return tmp;
} finally {
if (delete)
if (delete) {
FileUtils.delete(tmp, FileUtils.RETRY);
}
}
}

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