DfsReaderIoStats: Clarify that "blocks" are really cache misses
The previous wording was ambiguous as to whether these were blocks
requested from the cache (hits + misses) or read from underlying storage
(misses only).
They are in fact recording only misses:
Accumulator#{readBlock,readBlockBytes,readBlockMicros} are only
incremented from BlockBasedFile#readOneBlock, which is only called from
the cache miss path in DfsBlockCache#getOrLoad (line 391).
Change-Id: I0135cd1e76d09c1e28e0f1833b34c312511c66ce
**/ should match only directories, but not files
Change-Id: I885c83e5912cac5bff338ba657faf6bb9ec94064
Signed-off-by: Marc Strapetz <marc.strapetz@syntevo.com>
dfs: Try to avoid searching UNREACHABLE_GARBAGE during packing
If an object can be found in a non-garbage pack, favor that pack over
paging in the garbage pack's idx and pack content.
Only fall back to garbage packs if an object cannot be found and there
are garbage packs present in the repository. This fallback is
required to correct race conditions during GC.
Change-Id: Ia7c123975bc069b8e6e713eda2d357303b71e329
RepoCommand: generate relative submodule URLs from absolute URLs.
If a manifest file specifies an absolute URL on the same host on which
the superproject resides, rewrite the URLs to be relative.
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Change-Id: Id616611e5195998fb665c8e7806539a3a02e219a
RepoCommand: persist unreadable submodules in .gitmodules
In cases where a manifest file mixes different remotes, a Gerrit
server process may not have access to all remotes, and won't be able
to produce a full submodule tree.
Preserving this information in .gitmodules will let downstream clients
reconstruct the full tree.
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Change-Id: I52f5d3f288e771dca0af2b4dd3f3fa0f940dcf15
Transfer data in chunks of 8k Transferring data byte per byte is slow,
running checkout with CleanFilter on a 2.9MB file takes 20 seconds.
Using a buffer of 8k shrinks this time to 70ms.
Also register the filter commands in a way that the native GIT LFS can
be used alongside with JGit.
Implements auto-discovery of LFS server URL when cloning from a Gerrit
LFS server.
Change-Id: I452a5aa177dcb346d92af08b27c2e35200f246fd
Also-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Markus Duft <markus.duft@ssi-schaefer.com>
When the command is run on a non-bare repository, an instance of
Git is created to execute the commit, and is left open when the
command has finished.
Refactor to not use a class scope Git instance, and make sure it
gets closed before returning.
Change-Id: Ic623ae0fd8b9e264b5dfd434da0de6bb4f910984
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Don't subclass ThreadLocal to avoid memory leak in NLS
These problem usually occur when you subclass ThreadLocal (usually to
implement initialValue). Those classes reference the webapp's
classloader. The ThreadLocal subclass in turn is referenced by each
Thread instance (that's how ThreadLocals are implemented, they have a
"helper-Map" in each Thread instance, so the leak is actually not a tiny
Random instance but the whole webapp's classloader with a bunch of class
definitions and statically referenced parts of the webapp.
Bug: 449321
Change-Id: Ie7a8b0b90e40229e2471202f2a12637b9e0b1d11
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
If we give Jsch access to the ssh config file, we must _not_ resolve
the host name from the alias. Instead we must give the alias (i.e.,
the host name as is in the URI) to Jsch, so that it finds the same
ssh config entry.
Otherwise if the hostname in the URI, which is taken as an alias in
ssh config ("Host" line), is unequal to the "Hostname" line, and
there happens to be another ssh config entry with that translated
host name as alias, Jsch will pick up that second entry, and we end
up with a strange mixture of both.
Add tests for this case.
Bug: 531118
Change-Id: I249d8c073b0190ed110a69dca5b9be2a749822c3
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Jsch overrides the port in the URI with the one in ~/.ssh/config
Jsch unconditionally overwrites the port from the ssh config
file (if a port is specified there), even if the URI explicitly does
give a different port.
Fix this, and add tests.
Change-Id: I7b014543c7ece26270e366db39d7647f82d64f0d
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
InitCommand: Don't leave Repository open after Git is closed
The InitCommand returns a Git that is instantiated with the newly
created Repository, but the Repository is not closed with the Git
resulting in resource leaks.
Create the Git with `closeRepo` set to true, such that the Repository
is also closed when the Git is closed.
Adjust the tests to use try-with-resource on the Git instance.
Change-Id: Ib26e7428c7d8840956d1edb09e53b93e23e6fe5a
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Android an Chrome have several repos with >300k refs. We sometimes see
negotiations of >100k rounds. This change provides a "minimal negotiation"
feature on the client side that limits how many "have" lines the client
sends. The client extracts the current SHA-1 values for the refs in its
wants set, and terminates negotiation early when all of those values have
been sent as haves. If a new branch is being fetched then that set will
be empty and the client will terminate after current default minimum
of two rounds.
This feature is gated behind a "fetch.useminimalnegotiation" configuration
flag, which defaults to false.
Change-Id: Ib12b095cac76a59da6e8f72773c4129e3b32ff2b
Signed-off-by: Terry Parker <tparker@google.com>
Add fetch statistics for the counts of advertised refs, wants and haves.
Also add the duration in milliseconds for the negotiation phase. For
non-bidirectional transports like HTTP, this is the time for the final
round that sends the pack back to the user.
Change-Id: I1af7ffd3cb7b62182340682e2a243691ea24ec2e
Signed-off-by: Terry Parker <tparker@google.com>
MergedReftable to skip shadowed refs in same reftable
This would allow compact and GC process to clean up duplicate ref names in the reftables.
Change-Id: I2b9df0bf72dba63cc3525e374982e60559a776c2
Signed-off-by: Minh Thai <mthai@google.com>
Fix CleanCommand not to throw FileNotFoundExceptions
When CleanCommand is collecting the files and folders to be deleted
it may happen that the list of directories contains obsolete entries.
E.g. a folder and its parent folder may be in the list. Only the
parent folder would be sufficient.
This was a reason for hitting FileNotFoundExceptions when finally
trying to delete the files and folders. Improve CleanCommand
to ignore files to be deleted which are already gone.
Bug: 514434
Change-Id: I10caa01bfb9cec5967dfdaea50c6e4a713eeeabd
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
After packaging references, the folders containing these references are
not deleted. In a busy repository, this causes operations to slow down
as traversing the references tree becomes longer.
Delete empty reference folders after the loose references have been
packed.
To avoid deleting a folder that was just created by another concurrent
operation, only delete folders that were not modified in the last 30
seconds.
Signed-off-by: Hector Oswaldo Caballero <hector.caballero@ericsson.com>
Change-Id: Ie79447d6121271cf5e25171be377ea396c7028e0
Bazel@HEAD supports Java 9.
The current code has one single issue with Java 9 compliance: the usage
of javax.xml.bind.DatatypeConverter class for printHexBinary() method.
This class is not available on Java 9. One alternative is to use guava
library. Something similar was done here: [1]. But unlike the case with
checkstyle library, JGit currently doesn't use guava. Instead, we add
java.xml.bind module with --add-modules compiler option.
To build (or test) with Java 9, build custom bazel version and issue:
$ bazel --host_javabase=/usr/lib64/jvm/java-9-openjdk build \
--javacopt='--release 9' \
--java_toolchain=@bazel_tools//tools/jdk:toolchain_jdk9 :all
The Java 9 support is backwards compatible.
* [1] https://github.com/checkstyle/checkstyle/issues/5027
Change-Id: I2c5203fc4e65885ce7b210f824fda85ba6d6c51d
Signed-off-by: David Ostrovsky <david@ostrovsky.org>
The Files.exists method has noticeably poor performance in JDK 8 and can
slow an application significantly when used to check files that do not
actually exist. The same goes for Files.notExists, Files.isDirectory and
Files.isRegularFile [1].
Replace them with their File counterpart.
[1] https://rules.sonarsource.com/java/tag/performance/RSPEC-3725
Signed-off-by: Hector Oswaldo Caballero <hector.caballero@ericsson.com>
Change-Id: I89d23b9cc74bec8e05f6b7f3e49bfd967dbb6373
Avoid converting path to file to then reconvert it to path.
Signed-off-by: Hector Oswaldo Caballero <hector.caballero@ericsson.com>
Change-Id: I6a8c3ca9b83bf9b0eead9506938f5d68b27a76f5
continue is unnecessary when it is the last statement in a loop
Signed-off-by: Hector Oswaldo Caballero <hector.caballero@ericsson.com>
Change-Id: I12af9f9a0bb2fd7fc0239f1f3b59fb8e64e1f351
This doesn't handle the really hard thing, which is merging spurious
conflicts inside .gitmodules files. That's OK: git.git doesn't
either. Users can resolve the conflict themselves and then commit
the merge.
Previously, jgit would crash when attempting to merge conflicting
submodule changes. Even if there was no conflict, after a merge which
adds submodules, the repository would have been missing empty
directories for newly-added submodules.
This patch fixes the crash, and adds the empty directories where
necessary. It ensures that the index is in a conflicted state when
submodule changes conflict.
Reported-by: Alexey Korobkov
Bug: 494551
Change-Id: I79db6798c2bdcc1159b5b2589b02da198dc906a1
Signed-off-by: David Turner <dturner@twosigma.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This avoids having to re-read the merged file (twice even!) to
update the index.
Change-Id: Id13e0fd38906ed6f859604f86ca352761dca9ffe
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Commit fc7d407 corrected line endings for working tree files resulting
from merges when CRLF translations are to be done. However, that also
resulted in the file content being put as-is into the index, which is
wrong. The index must contain the file content with reverse CRLF
translations applied.
With core.autocrlf=true, the working tree file should have CR-LF, but
the index blob must still contain only LF.
Fix this oversight and apply the inverse translation when updating the
index, similar to what is done in AddCommand.
Bug: 499615
Change-Id: I3a33931318bdb580b2390f3450f91ea8f258a6a4
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Merges are performed using the raw text as stored in the git
repository. When we write the merge result, we must apply the
correct CRLF settings. Otherwise the line endings in the result
will be wrong.
Bug: 499615
Change-Id: I37a9b987e9404c97645d2720cd1c7c04c076a96b
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* Fix "can not" -> "cannot" in two messages
* Re-word "Cannot mkdir" to "Cannot create directory"
Change-Id: Ide0cec55eeeebd23bccc136257c80f47638ba858
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
* Fix "can not" -> "cannot" in two messages
* Re-word "Cannot mkdir" to "Cannot create directory"
Change-Id: Ide0cec55eeeebd23bccc136257c80f47638ba858
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
* Section and key names in git config files are case-insensitive.
* If an include directive is invalid, include the line in the
exception message.
* If inclusion of the included file fails, put the file name into
the exception message so that the user knows in which file the
problem is.
Change-Id: If920943af7ff93f5321b3d315dfec5222091256c
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
The reason for the change is LFS: when using a lot of LFS files,
checkout can take quite some time on larger repositories. To avoid
"hanging" UI, provide progress reporting.
Also implement (partial) progress reporting for cherry-pick, reset,
revert which are using checkout internally.
The feature is also useful without LFS, so it is independent of it.
Change-Id: I021e764241f3c107eaf2771f6b5785245b146b42
Signed-off-by: Markus Duft <markus.duft@ssi-schaefer.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Revert usage of TYPE_USE in Nullable and NonNull annotations
Using TYPE_USE causes compilation errors in Eclipse Neon.3 (JDT 3.12.3)
and Eclipse Oxygen.2 (JDT 3.13.2).
This reverts commit 8e217517e2.
This reverts commit 55eba8d0f5.
Reported-by: Thomas Wolf <thomas.wolf@paranor.ch>
Change-Id: I96869f80dd11ee238911706581b224bca4fb12cd
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Since JGit now requires Java 8, we can switch to TYPE_USE instead
of explicitly specifying the target type.
Some of the existing uses of Nullable need to be reworked slightly
as described in [1] to prevent the compilation error:
scoping construct cannot be annotated with type-use annotation
[1] https://stackoverflow.com/a/21385939/381622
Change-Id: Idba48f67a09353b5237685996ce828c8ca398168
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Since JGit now requires Java 8, we can switch to TYPE_USE instead
of explicitly specifying the target type.
Change-Id: I373d47c3d92507459685789df1fad0933d5625ff
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
We skipped the broken symbolic reference in other implementation like
DfsRefDatabase, RefDirectory. The broken symbolic reference may cause
NPE when caller forget to have a null check against the object id before
calling parse it.
Change-Id: If5e07202e9ee329d0bd9488936d79c98143c7ad9
Signed-off-by: Zhen Chen <czhen@google.com>
This mirrors SideBandOutputStream which is also public
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Change-Id: Ic0983af663f0c4c85bf5486b195108c45cddc4c2
Revert handling of ssh IdentityFile to pre-4.9 behavior
Jsch caches keys (aka identities) specified in ~/.ssh/config via
IndentityFile only for the current Jsch Session. This results in
multiple password prompts for successive sessions.
Do the handling of IdentityFile exclusively in JGit, as it was before
4.9. JGit uses different Jsch instances per host and caches the
IdentityFile there, allowing it to be re-used in different sessions
for the same host.
* Add comments to explain this.
* Move the JschBugFixingConfig from OpenSshConfig to
JschConfigSessionFactory to have all these Jsch work-arounds
in one place.
* Make that config hide the IdentityFile config from Jsch to avoid
that Jsch overrides the JGit behavior.
Bug: 529173
Change-Id: Ib36c34a2921ba736adeb64de71323c2b91151613
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
RefDirectory#hasLooseRef: Fix stream resource leak reported by error-prone
Error-prone reports:
[StreamResourceLeak] Streams that encapsulate a closeable resource
should be closed using try-with-resources
Change-Id: I86154fba2b896723feaecf8991ed3c8e96ea2499
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Dave Borowitz
Marc Strapetz
Shawn Pearce
Han-Wen Nienhuys
Matthias Sohn
Markus Duft
David Pursehouse
Thomas Wolf
Terry Parker
Minh Thai
Christian Halstrick
Hector Caballero
David Ostrovsky
David Turner
Zhen Chen