| Commit message (Collapse) | Author | Age | Files | Lines |
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Change-Id: I66402643d7c84c90bf5cefed4d2ec3aa68c94cfb
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Add NoPackSignatureException and UnsupportedPackVersionException to
explicitly mark permanent unrecoverable problems with a pack
Assume problem with a pack is permanent only if we are sure the
exception signals a non-transient problem we can't recover from:
- AccessDeniedException: we lack permissions
- CorruptObjectException: we detected corruption
- EOFException: file ended unexpectedly
- NoPackSignatureException: pack has no pack signature
- NoSuchFileException: file has gone missing
- PackMismatchException: pack no longer matches its index
- UnpackException: unpacking failed
- UnsupportedPackIndexVersionException: unsupported pack index version
- UnsupportedPackVersionException: unsupported pack version
Do not attempt to handle Errors since they are thrown for serious
problems applications should not try to recover from.
Change-Id: I2c416ce2b0e23255c4fb03a3f9a0ee237f7a484a
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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A packfile random file open operation may fail with a
FileNotFoundException even if the file exists, possibly
for the temporary lack of resources.
Instead of managing the FileNotFoundException as any generic
IOException it is best to rethrow the exception but prevent
the packfile for being flagged as invalid until it is actually
opened and read successfully or unsuccessfully.
Bug: 514170
Change-Id: Ie37edba2df77052bceafc0b314fd1d487544bf35
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I8485de1f3f63dc9ec445b8fb08093ca144aedc59
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I88de7c9f52abbc4921a82208ed74d22aa19fb3cd
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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The FileNotFoundException is typically raised in three conditions:
1. file doesn't exist
2. incompatible read vs. read/write open modes
3. filesystem locking
4. temporary lack of resources (e.g. too many open files)
1. is already managed, 2. would never happen as packs are not
overwritten while with 3. and 4. it is worth logging the exception and
retrying to read the pack again.
Log transient errors using an exponential backoff strategy to avoid
flooding the logs with the same error if consecutive retries to access
the pack fail repeatedly.
Bug: 513435
Change-Id: I03c6f6891de3c343d3d517092eaa75dba282c0cd
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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When a repository is being GCed and a concurrent push is received, there
is the possibility of having a missing object. This is due to the fact
that after the list of objects to delete is built, there is a window of
time when an unreferenced and ready to delete object can be referenced
by the incoming push. In that case, the object would be deleted because
there is no way to know it is no longer unreferenced. This will leave
the repository in an inconsistent state and most of the operations fail
with a missing tree/object error.
Given the incoming push change the last modified date for the now
referenced object, verify this one is still a candidate to delete
before actually performing the delete operation.
Change-Id: Iadcb29b8eb24b0cb4bb9335b670443c138a60787
Signed-off-by: Hector Oswaldo Caballero <hector.caballero@ericsson.com>
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It is easier to maintain when the same variable is used for both check
and extraction of LFS object id.
Change-Id: I5406f9bc4a085aa164c4565a9667ad2925105190
Signed-off-by: Jacek Centkowski <geminica.programs@gmail.com>
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Adding a space before the unit ('g', 'm', 'k) causes git to fail with
the error:
fatal: bad numeric config value
Change-Id: I57f11d3a1cdcca4549858e773af1a2a80fc0369f
Signed-off-by: David Turner <dturner@twosigma.com>
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
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Earlier we tried to close the repository before removing it from the
cache, so close only reduced refcount but didn't close it.
Now that we no longer leak usage count on purpose and the usage count is
now ignored anyway, there is no longer a need to run the removal twice.
Change-Id: I8b62cec6d8a3e88c096d1f37a1f7f5a5066c90a0
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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If the repository close method was called twice (or more) for one open,
the usage count became negative and the repository was never be evicted
from the cache because the method checking if repository is expired was
not considering negative usage count.
Change-Id: I18a80c415c54c37d1b9def2b311ff2d0afa455ca
Signed-off-by: Hugo Arès <hugo.ares@ericsson.com>
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Bug: 502107
Change-Id: I76d0981c8463b63bd049f50cdc7d549fa0604b3c
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I19d27bbdbfdb1c7a5a688e41dfcba73a142a1afd
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Bug: 503010
Change-Id: I8fa99f53020af41eb15c1f63b6f3ba094d56bfef
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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There was a bug when carrying over flags from a merge commit to its
non-first parents. The first parent of a merge commit was handled
differently and correct but the non-first parents are handled by a
recursive algorithm. Flags should be copied from the root merge commit
to parent-2, to grandparent-2, ... up to the limit of STACK_DEPTH==500
parents-levels. But the recursive algorithm was always copying only to
the direct parents of the merge commit and not the grand*-parents.
This seems to be no problem when commits are handled in a strict date
order because then copying only one level is no problem if children are
handled before parents. But when commits are not seperated anymore by
distinctive correct dates (e.g. because all commits have the same date)
then it may happen that a merge-parent is handled before the merge
commit and when dealing later with the merge commit one has to copy
flags down to more than one level
Bug: 501211
Change-Id: I2d79a7cf1e3bce21a490905ccd9d5e502d7b8421
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Change-Id: Iefc77114de21e7a101642f5c3a8f0fb317886ba2
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I3305e8a09a3fb06f25a316cff2bdbb551d3ade68
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Idc02a1a1d74f84605d764c239803f0cfbad94eb7
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Repository.close() method is used when reference counting and expiration
needs to be honored. The RepositoryCache.unregisterAndCloseRepository
method should close the repository unconditionally. This is also indicated
from its javadoc.
Change-Id: I19392d1eaa17f27ae44b55eea49dcff05a52f298
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BranchConfig treated this config property as a boolean, but git also
allows the values "preserve" and "interactive". Config property
pull.rebase also allows the same values.
Replace private enum PullCommand.PullRebaseMode by new public enum
BranchConfig.BranchRebaseMode and adapt all uses. Add a new setter to
PullCommand.
Note: PullCommand will treat "interactive" like "true", i.e., as a
non-interactive rebase. Not sure how "interactive" should be handled.
At least it won't balk on it.
Bug: 499482
Change-Id: I7309360f5662b2c2efa1bd8ea6f112c63cf064af
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
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Bug: 500967
Change-Id: I7fabc2654af97011c62f46d5c30ee992341e45e2
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
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Change-Id: I6691b454404dd4db3c690ecfc7515de765bc2ef7
Signed-off-by: Martin Goellnitz <m.goellnitz@outlook.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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- enhance FS.readPipe to throw an exception if the external command
fails to enable the caller to handle the command failure
- reduce log level to warning if system git config does not exist
- improve log message
Bug: 476639
Change-Id: I94ae3caec22150dde81f1ea8e1e665df55290d42
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Without the bridge JGit tests don't show log output in Eclipse console.
Change-Id: I7acce1f1787960b5ca98377cb5c7f599a8a220b5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Since 4.0 JGit does no longer support Java versions older than Java 7 so
there is no need anymore to mention Java 7 in the class name.
Change-Id: Ic46c9d89a7e919ae4a69487fa06de0478d2b21f0
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Guide implementors which exception to throw in case of errors.
Change-Id: I74fb76cdf6b7cdef513f3fe8c144572e869cc533
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I438456b76aefd361384729686271288186d3be3b
Signed-off-by: Ned Twigg <ned.twigg@diffplug.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I05d5392789b5b64e6ee44f678556cf25dc30d7ba
Signed-off-by: Ned Twigg <ned.twigg@diffplug.com>
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Instead of returning null, LfsProtocolServlet#getLargeFileRepository
should throw LfsUnavailable.
If null is returned, throw a generic LfsException.
Handle LfsException as an internal server error and return HTTP 500.
Change-Id: I33e2a19fcc0fde8aaf0f703860c8fa8ce2de2db5
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
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Change-Id: I4967b5f7a9a7e9488d20f60aaa949efe97442429
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
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This allows the same try/catch to handle parsing the command list,
push certificate and push options. Any errors will be caught and
handled by the same catch block, as the client is in the same state.
Change-Id: I13a66f9100e2dc8ca8f72cd701a5bd44d093ec84
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Checking if the instance allows push options before returning the
collection or null is a bit overkill. Just return the collection
or return null.
Change-Id: Icdc3755194373966e5819284aeb9bfe8dd34de82
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Some embeddings of JGit require creating a ReceivePack instance in
another process from the one that handled the network socket with the
client. Similar to the PushCertificate add a setter to allow the
option list to be supplied.
Change-Id: I303a30e54942ad067c79251eff8b53329c406628
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Noticed by error-prone (http://errorprone.info/bugpattern/ClassCanBeStatic).
Change-Id: Ie271e9e789a5bc764a287f7bd2a8c8af297d7d41
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Refactor all of the push option support code to allocate the list
immediately before parsing the options section off the stream.
Move option support down to ReceivePack instead of BaseReceivePack.
Push options are specific to the ReceivePack protocol and are not
likely to appear in the 4 year old subscription proposal. These
changes are OK before JGit 4.5 ships as no consumer should be relying
on these new APIs.
Change-Id: Ib07d18c877628aba07da07cd91875f918d509c49
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Initialize pushOptions when we decide to use them, instead of when we
advertise them.
In the case of HTTP the advertisement is in a different network
request, hence in a different instance of the BaseReceivePack.
Change-Id: I094c60942e04de82cb6d8433c9cd43a46ffae332
Signed-off-by: Stefan Beller <sbeller@google.com>
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Do not open an OBJ_TREE if the caller is expecting an OBJ_BLOB or
OBJ_COMMIT; instead throw IncorrectObjectTypeException. This better
matches behavior of WindowCursor, the ObjectReader implementation of
the local file based object store.
Change-Id: I3fb0e77f54895b123679a405e1b6ba5b95752ff0
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HttpClientConnection uses a TemporaryBufferEntity which uses
TemporaryBuffer.LocalFile to buffer an HttpEntity. It was leaking
temporary files if the buffered entities were larger than 1MB since it
failed to destroy the TemporaryBuffer.LocalFile.
Bug: 500079
Change-Id: Ib963e04efc252bdd0420a5c69b1a19181e9e6169
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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DfsRefDatabase#compareAndPut had a vague semantics for reference
matching. Because of this, an operation to make a symbolic
reference had been broken for some DFS implementations even if they
followed the contract of compareAndPut. The clarified semantics
requires the implementations to satisfy the followings:
* Matching references should be both symbolic references or both
object ID references.
* If both are symbolic references, both should have the same target
name.
* If both are object ID references, both should have the same object
ID.
This semantics is defined based on
https://git.eclipse.org/r/#/c/77416/. Before this commit,
DfsRefDatabase couldn't see the target of symbolic references.
InMemoryRepository is changed to comply with the new semantics. This
semantics change can affect the existing DFS implementations that only
checks object IDs. This commit adds two tests that the previous
InMemoryRepository couldn't pass.
Change-Id: I6c6b5d3cc8241a81f4a37782381c88e8a59fdf15
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
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When doing a detaching operation, JGit fakes a SymbolicRef as an
ObjectIdRef. This is because RefUpdate#updateImpl dereferences the
SymbolicRef when updating it. For example, assume that HEAD is
pointing to refs/heads/master. If I try to make a detached HEAD
pointing to a commit c0ffee, RefUpdate dereferences HEAD as
refs/heads/master first and changes refs/heads/master to c0ffee. The
detach argument of RefDatabase#newUpdate avoids this dereference by
faking HEAD as ObjectIdRef.
This faking is problematic for the linking operation of
DfsRefDatabase. It does a compare-and-swap operation on every
reference change because of its distributed systems nature. If a
SymbolicRef is faked as an ObjectRef, it thinks that there is a
racing change in the reference and rejects the update. Because of
this, DFS based repositories cannot change the link target of symbolic
refs. This has not been a problem for file-based repositories because
they have a file-lock based semantics instead of the CAS based one.
The reference implementation, InMemoryRepository, is not affected
because it only compares ObjectIds.
When [1] introduced this faking code, there was no way for RefUpdate
to distinguish the detaching operation. When [2] fixed the detaching
operation, it introduced a detachingSymbolicRef flag. This commit uses
this flag to control whether it needs to dereference the symbolic refs
by calling Ref#getLeaf. The same flag is used in the reflog update
operation.
This commit does not affect any operation that succeeds currently. In
some DFS repository implementations, this fixes a ref linking
operation, which is currently failing.
[1]: https://eclipse.googlesource.com/jgit/jgit/+/01b5392cdbc12ce2e21fd1d1afbd61fdf97e1c38
[2]: https://eclipse.googlesource.com/jgit/jgit/+/3a86868c0883d2a564db88bf9ae4a5fe235bb63f
Change-Id: I118f85f0414dbfad02250944e28d74dddd59469b
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
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The RepositoryTestCase hierarchy no longer comes from TestCase, so all
test methods must have @Test.
Fix one test that was broken but never run; fortunately this was just
a typo in the test code.
Change-Id: I3ac8ccdab5e2d5539c63d7b0a88d8bdb0c5ff66e
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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A JUnit TestRule which enables to run the same JUnit test repeatedly.
This may help to identify the root cause why a flaky tests which succeed
most often does fail sometimes.
Add the RepeatRule to the test class containing the test to be repeated:
public class MyTest {
@Rule
public RepeatRule repeatRule = new RepeatRule();
...
}
and annotate the test to be repeated with the @Repeat(n=<repetitions>)
annotation:
@Test
@Repeat(n = 100)
public void test() {
...
}
then this test will be repeated 100 times. If any test execution fails
test repetition will be stopped.
Change-Id: I7c49ccebe1cb00bcde6b002b522d95c13fd3a35e
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Since [1], the git-lfs specification allows the server to return
HTTP 507 if there is insufficient storage for the uploaded object(s).
Add a new exception class, which implementations may throw from the
getRepository() method, causing HTTP 507 to be returned to the client.
[1] https://github.com/github/git-lfs/pull/1473
Change-Id: If5bc0a35fcf870d4216af6ca2f7c8924689ef9c5
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
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Imitate the packet tracing feature from C Git v1.7.5-rc0~58^2~1 (add
packet tracing debug code, 2011-02-24). Unlike C Git, use the log4j
log level setting instead of the GIT_TRACE_PACKET environment variable
to enable tracing.
Tested as follows:
1. Enable tracing by adding the lines
log4j.logger.org.eclipse.jgit.transport=DEBUG, stderr
log4j.additivity.org.eclipse.jgit.transport=false
to org.eclipse.jgit.pgm/resources/log4j.properties.
2. mvn package
3. org.eclipse.jgit.pgm/target/jgit \
ls-remote git://git.kernel.org/pub/scm/git/git 2>&1 |less
Then the output provides a trace of packets sent and received over
the wire:
2016-08-24 16:36:42 DEBUG PacketLineOut:145 - git> git-upload-pack /pub/scm/git/git^@host=git.kernel.org^@
2016-08-24 16:36:42 DEBUG PacketLineIn:165 - git< 2632c897f74b1cc9b5533f467da459b9ec725538 HEAD^@multi_ack thin-pack side-band side-band-64k ofs-delta shallow no-progress include-tag multi_ack_detailed symref=HEAD:refs/heads/master agent=git/2.8.4
2016-08-24 16:36:42 DEBUG PacketLineIn:165 - git< e0c1ceafc5bece92d35773a75fff59497e1d9bd5 refs/heads/maint
Change-Id: I5028c064f3ac090510386057cb4e6d30d4eae232
Signed-off-by: Dan Wang <dwwang@google.com>
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Unless the user passed --push-option, the client does not intend to
pass push options to the server.
Without this change, all pushes to servers without push option support
fail.
Not enabling the feature (instead of enabling it and sending an empty
list of options) in this case is more intuitive and matches the
behavior of C git push's --push-option parameter better.
Bug: 500149
Change-Id: Ia4f13840cc54d8ba54e99b1432108f1c43022c53
Signed-off-by: Stefan Beller <sbeller@google.com>
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This fixes the tests failed in JDK8.
FS uses java.nio API to get file attributes. The timestamps obtained
from that API are more precise than the ones from
java.io.File#lastModified() since Java8.
This difference accidentally makes JGit detect newly added files as
smudged. Use the precised timestamp to avoid this false positive.
Bug: 500058
Change-Id: I9e587583c85cb6efa7562ad6c5f26577869a2e7c
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
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