diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackInvalidException.java b/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackInvalidException.java
index 8c216c3d4..09be9ec34 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackInvalidException.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackInvalidException.java
@@ -58,9 +58,24 @@ public class PackInvalidException extends IOException {
*
* @param path
* path of the invalid pack file.
+ * @deprecated Use {@link #PackInvalidException(File, Throwable)}.
*/
+ @Deprecated
public PackInvalidException(final File path) {
- this(path.getAbsolutePath());
+ this(path, null);
+ }
+
+ /**
+ * Construct a pack invalid error with cause.
+ *
+ * @param path
+ * path of the invalid pack file.
+ * @param cause
+ * cause of the pack file becoming invalid.
+ * @since 4.5.7
+ */
+ public PackInvalidException(final File path, Throwable cause) {
+ this(path.getAbsolutePath(), cause);
}
/**
@@ -68,8 +83,23 @@ public PackInvalidException(final File path) {
*
* @param path
* path of the invalid pack file.
+ * @deprecated Use {@link #PackInvalidException(String, Throwable)}.
*/
+ @Deprecated
public PackInvalidException(final String path) {
- super(MessageFormat.format(JGitText.get().packFileInvalid, path));
+ this(path, null);
+ }
+
+ /**
+ * Construct a pack invalid error with cause.
+ *
+ * @param path
+ * path of the invalid pack file.
+ * @param cause
+ * cause of the pack file becoming invalid.
+ * @since 4.5.7
+ */
+ public PackInvalidException(final String path, Throwable cause) {
+ super(MessageFormat.format(JGitText.get().packFileInvalid, path), cause);
}
}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/dfs/DfsPackFile.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/dfs/DfsPackFile.java
index f15d427f8..4586370d6 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/dfs/DfsPackFile.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/dfs/DfsPackFile.java
@@ -135,6 +135,9 @@ public final class DfsPackFile {
/** True once corruption has been detected that cannot be worked around. */
private volatile boolean invalid;
+ /** Exception that caused the packfile to be flagged as invalid */
+ private volatile Exception invalidatingCause;
+
/**
* Lock for initialization of {@link #index} and {@link #corruptObjects}.
*
@@ -235,8 +238,9 @@ private PackIndex idx(DfsReader ctx) throws IOException {
return idx;
}
- if (invalid)
- throw new PackInvalidException(getPackName());
+ if (invalid) {
+ throw new PackInvalidException(getPackName(), invalidatingCause);
+ }
Repository.getGlobalListenerList()
.dispatch(new BeforeDfsPackIndexLoadedEvent(this));
@@ -267,6 +271,7 @@ else if (bs <= 0)
}
} catch (EOFException e) {
invalid = true;
+ invalidatingCause = e;
IOException e2 = new IOException(MessageFormat.format(
DfsText.get().shortReadOfIndex,
packDesc.getFileName(INDEX)));
@@ -274,6 +279,7 @@ else if (bs <= 0)
throw e2;
} catch (IOException e) {
invalid = true;
+ invalidatingCause = e;
IOException e2 = new IOException(MessageFormat.format(
DfsText.get().cannotReadIndex,
packDesc.getFileName(INDEX)));
@@ -751,8 +757,10 @@ void setInvalid() {
private IOException packfileIsTruncated() {
invalid = true;
- return new IOException(MessageFormat.format(
+ IOException exc = new IOException(MessageFormat.format(
JGitText.get().packfileIsTruncated, getPackName()));
+ invalidatingCause = exc;
+ return exc;
}
private void readFully(long position, byte[] dstbuf, int dstoff, int cnt,
@@ -774,8 +782,9 @@ DfsBlock getOrLoadBlock(long pos, DfsReader ctx) throws IOException {
DfsBlock readOneBlock(long pos, DfsReader ctx)
throws IOException {
- if (invalid)
- throw new PackInvalidException(getPackName());
+ if (invalid) {
+ throw new PackInvalidException(getPackName(), invalidatingCause);
+ }
ReadableChannel rc = ctx.db.openFile(packDesc, PACK);
try {
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
index e1934a13d..acd467751 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
@@ -129,8 +129,6 @@ public class ObjectDirectory extends FileObjectDatabase {
private final File alternatesFile;
- private final AtomicReference packList;
-
private final FS fs;
private final AtomicReference alternates;
@@ -143,6 +141,8 @@ public class ObjectDirectory extends FileObjectDatabase {
private Set shallowCommitsIds;
+ final AtomicReference packList;
+
/**
* Initialize a reference to an on-disk object directory.
*
@@ -595,13 +595,8 @@ private void handlePackError(IOException e, PackFile p) {
transientErrorCount = p.incrementTransientErrorCount();
}
if (warnTmpl != null) {
- if (LOG.isDebugEnabled()) {
- LOG.debug(MessageFormat.format(warnTmpl,
- p.getPackFile().getAbsolutePath()), e);
- } else {
- LOG.warn(MessageFormat.format(warnTmpl,
- p.getPackFile().getAbsolutePath()));
- }
+ LOG.warn(MessageFormat.format(warnTmpl,
+ p.getPackFile().getAbsolutePath()), e);
} else {
if (doLogExponentialBackoff(transientErrorCount)) {
// Don't remove the pack from the list, as the error may be
@@ -688,7 +683,7 @@ InsertLooseObjectResult insertUnpackedObject(File tmp, ObjectId id,
return InsertLooseObjectResult.FAILURE;
}
- private boolean searchPacksAgain(PackList old) {
+ boolean searchPacksAgain(PackList old) {
// Whether to trust the pack folder's modification time. If set
// to false we will always scan the .git/objects/pack folder to
// check for new pack files. If set to true (default) we use the
@@ -843,7 +838,8 @@ private PackList scanPacksImpl(final PackList old) {
final String packName = base + PACK.getExtension();
final File packFile = new File(packDirectory, packName);
final PackFile oldPack = forReuse.remove(packName);
- if (oldPack != null && oldPack.getFileSnapshot().isModified(packFile)) {
+ if (oldPack != null
+ && !oldPack.getFileSnapshot().isModified(packFile)) {
list.add(oldPack);
continue;
}
@@ -982,7 +978,7 @@ public File fileFor(AnyObjectId objectId) {
return new File(new File(getDirectory(), d), f);
}
- private static final class PackList {
+ static final class PackList {
/** State just before reading the pack directory. */
final FileSnapshot snapshot;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackFile.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackFile.java
index e7db11d08..c4e0d66c3 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackFile.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackFile.java
@@ -135,6 +135,8 @@ public int compare(final PackFile a, final PackFile b) {
private volatile boolean invalid;
+ private volatile Exception invalidatingCause;
+
private boolean invalidBitmap;
private AtomicInteger transientErrorCount = new AtomicInteger();
@@ -179,8 +181,9 @@ public PackFile(final File packFile, int extensions) {
private synchronized PackIndex idx() throws IOException {
if (loadedIdx == null) {
- if (invalid)
- throw new PackInvalidException(packFile);
+ if (invalid) {
+ throw new PackInvalidException(packFile, invalidatingCause);
+ }
try {
final PackIndex idx = PackIndex.open(extFile(INDEX));
@@ -198,6 +201,7 @@ private synchronized PackIndex idx() throws IOException {
throw e;
} catch (IOException e) {
invalid = true;
+ invalidatingCause = e;
throw e;
}
}
@@ -647,7 +651,7 @@ synchronized boolean endWindowCache() {
private void doOpen() throws IOException {
if (invalid) {
- throw new PackInvalidException(packFile);
+ throw new PackInvalidException(packFile, invalidatingCause);
}
try {
synchronized (readLock) {
@@ -657,13 +661,13 @@ private void doOpen() throws IOException {
}
} catch (InterruptedIOException e) {
// don't invalidate the pack, we are interrupted from another thread
- openFail(false);
+ openFail(false, e);
throw e;
} catch (FileNotFoundException fn) {
// don't invalidate the pack if opening an existing file failed
// since it may be related to a temporary lack of resources (e.g.
// max open files)
- openFail(!packFile.exists());
+ openFail(!packFile.exists(), fn);
throw fn;
} catch (EOFException | AccessDeniedException | NoSuchFileException
| CorruptObjectException | NoPackSignatureException
@@ -671,20 +675,21 @@ private void doOpen() throws IOException {
| UnsupportedPackIndexVersionException
| UnsupportedPackVersionException pe) {
// exceptions signaling permanent problems with a pack
- openFail(true);
+ openFail(true, pe);
throw pe;
} catch (IOException | RuntimeException ge) {
// generic exceptions could be transient so we should not mark the
// pack invalid to avoid false MissingObjectExceptions
- openFail(false);
+ openFail(false, ge);
throw ge;
}
}
- private void openFail(boolean invalidate) {
+ private void openFail(boolean invalidate, Exception cause) {
activeWindows = 0;
activeCopyRawData = 0;
invalid = invalidate;
+ invalidatingCause = cause;
doClose();
}
@@ -711,7 +716,7 @@ ByteArrayWindow read(final long pos, int size) throws IOException {
// Detect the situation and throw a proper exception so that can be properly
// managed by the main packfile search loop and the Git client won't receive
// any failures.
- throw new PackInvalidException(packFile);
+ throw new PackInvalidException(packFile, invalidatingCause);
}
if (length < pos + size)
size = (int) (length - pos);