StreamCopyThread.flush was introduced in
61645b938bc934fda3b0624c5bac1e3495634750 (Add timeouts to smart
transport clients, 2009-06-19) to support timeouts on write in JSch.
The commit message from that change explains:
JSch made a timeout on write difficult because they explicitly do
a catch for InterruptedException inside of their OutputStream. We
have to work around that by creating an additional thread that just
shuttles data between our own OutputStream and the real JSch stream.
The code that runs on that thread is structured as follows:
while (!done) {
int n = src.read(buf);
dst.write(buf, 0, n);
}
with src being a PipedInputStream representing the data to be written
to JSch. To add flush support, that change wanted to add an extra step
if (wantFlush)
dst.flush();
but to handle the case where the thread is blocked in the read() call
waiting for new input, it needs to interrupt the read. So that is how
it works: the caller runs
pipeOut.write(some data);
pipeOut.flush();
copyThread.flush();
to write some data and force it to flush by interrupting the read.
After the pipeOut.flush(), the StreamCopyThread reads the data that was
written and prepares to copy it out. If the copyThread.flush() call
interrupts the copyThread before it acquires writeLock and starts
writing, we throw away the data we just read to fulfill the flush.
Oops.
Noticed during the review of e67d59df3f
(StreamCopyThread: Do not let flush interrupt a write, 2016-11-04),
which introduced this bug.
Change-Id: I4aceb5610e1bfb251046097adf46bca54bc1d998
flush calls interrupt() to interrupt a pending read and trigger a
flush. Unfortunately that interrupt() call can also interrupt a
pending write, putting Jsch in a bad state and triggering "Short read
of block" errors. Add locking to ensure the flush only interrupts
reads as intended.
Change-Id: Ib105d9e107ae43549ced7e6da29c22ee41cde9d8
If there was a new flush() call during flush previous bytes, we need to
catch it in order to process the new bytes between the two flush()
calls instead of going to last catch IOException clause and end the
thread.
Change-Id: Ibc58a1fa97559238c13590aedbb85e482d85e465
Signed-off-by: Zhen Chen <czhen@google.com>
ObjectId is serializable, and so are its subtypes. Ensure that
serialization does not follow the hash collision chain internal to the
ObjectIdOwnerMap, otherwise completely unrelated objects may get
serialized when a RevObject is serialized.
Note that serializing a RevCommit or RevTag may serialize quite a few
objects due to the parent/object links they contain. A user has no real
control over how many objects will be written when a RevCommit is
serialized. C.f [1]. This change does not resolve that, but in any case
this internal hash collision chain link should not participate in
serialization.
[1] https://github.com/gitblit/gitblit/pull/1141
Change-Id: Ice331a9dc80a59ca360fcc04adaff8b5e750d847
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Enhance and use AtomicObjectOutputStream to write temporary files in
CleanFilter.
Change-Id: I28987dad18255a9067344f94b4e836cbd183e4b1
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The CleanFilter leaked temporary files when a media file already existed
before running clean filter.
Change-Id: Ie20fce3f40d34095ce58e596d25d8d64fe0cde99
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Transferring data byte per byte is slow, running add with CleanFilter on
a 2.9MB file takes 20 seconds. Using a buffer of 8k shrinks this time to
70ms.
Change-Id: I3bc2d8c11fe6cfaffcc99dc2a00643e01ac4e9cc
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Previously, the streamFileThreshold, the threshold at which a file
would be streamed rather than loaded entirely into memory, was only
configurable on a global basis.
This commit makes this threshold configurable on a per-loader basis.
Bug: 490404
Change-Id: I492c18c3155dbf56eedda9044a61d76120fd75f9
Signed-off-by: Kevin Corcoran <kevin.corcoran@puppetlabs.com>
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
With the auto option, gc checks whether any housekeeping is required; if
not, it exits without performing any work. Some JGit commands run gc
--auto after performing operations that could create many loose objects.
Housekeeping is required if there are too many loose objects or too many
packs in the repository.
If the number of loose objects exceeds the value of the gc.auto option
jgit's GC consolidates all existing packs into a single pack (equivalent
to -A option), whereas git-core would combine all loose objects into a
single pack using repack -d -l. Setting the value of gc.auto to 0
disables automatic packing of loose objects.
If the number of packs exceeds the value of gc.autoPackLimit, then
existing packs (except those marked with a .keep file) are consolidated
into a single pack by using the -A option of repack. Setting
gc.autoPackLimit to 0 disables automatic consolidation of packs.
Like git the following jgit commands run auto gc:
- fetch
- merge
- rebase
- receive-pack
The auto gc for receive-pack can be suppressed by setting the config
option receive.autogc = false
Change-Id: I68a2a051b39ec2c53cb7c4b8f6c596ba65eeba5d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The new method addPaths(List<String>) allows callers to add multiple
paths without having to iterate over several calls to addPath(String).
Change-Id: I2c3746a97ead7118fb0ed5543a2c843224719031
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Change-Id: Ie1e59c566b63d0dfac231e44e7ebd7f3f08f3e9f
Signed-off-by: Ned Twigg <ned.twigg@diffplug.com>
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
This SIOOBE happens reproducibly when trying to access
a repository containing Cygwin symlinks
Change-Id: I25f103fcc723bac7bfaaeee333a86f11627a92c7
Signed-off-by: Marc Strapetz <marc.strapetz@syntevo.com>
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Remove the assumption that the local repository is a file based one.
Change-Id: I8f10fe7a54e9fc07f2a23d7901e52b65aa570d45
Signed-off-by: Thomas Meyer <thomas.mey@web.de>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Git barfs on these (and they don't make any sense), so we certainly
shouldn't write them.
Change-Id: I3faf8554a05f0fd147be2e63fbe55987d3f88099
Signed-off-by: David Turner <dturner@twosigma.com>
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Allow for higher concurrency on DfsBlockCache by adding a configuration
for number of estimated concurrent requests.
Change-Id: Ia65e58ecb2c459b6d9c9697a2f715d933270f7e6
Signed-off-by: Philipp Marx <smigfu@googlemail.com>
According to FindBugs:
In each iteration, the String is converted to a StringBuffer/
StringBuilder, appended to, and converted back to a String. This
can lead to a cost quadratic in the number of iterations, as the
growing string is recopied in each iteration.
Replace string concatenation with StringBuffer.
Change-Id: I60e09f274bed6722f4e0e4d096b0f2b1b31ec1b4
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* stable-4.5:
Config: do not add spaces before units
Change-Id: I54185f54e6d78d7aac873ee5f990f09582318857
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
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>
The 'factory' field is lazy initialized in the detect() method.
According to FindBugs:
Because the compiler or processor may reorder instructions, threads
are not guaranteed to see a completely initialized object, if the
method can be called by multiple threads.
Fix this by declaring the member as 'volatile'.
Change-Id: Ib32663bb28c9564584256e01f625b4e7875e6223
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
To avoid that people try to "fix" it.
Change-Id: Ib4b35e357e4c068a17243ebd2d57b058c54d5834
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Upgrade to match the version used on Gerrit's master branch.
Requires a couple of modifications to make the tests work:
- Remove source_under_test parameters from java_test calls.
- Add vm_args with explicit setting of tmpdir location for http
tests. This is needed due to upstream changes in temporary
directory handling [1].
[1] https://github.com/facebook/buck/issues/946
Change-Id: I5d5dd5edc335d44b118e8587f69ba89b83fc7fbb
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Native git (as many other tools) interprets the environment variables
http_proxy, HTTP_PROXY, ... in a specific way. "http_proxy" has to be
lowercase while "https_proxy" can be lowercase or uppercase (means:
"HTTPS_PROXY"). Lowercase has precedence. This can be looked up in
"ENVIRONMENT" section of [1]. Teach JGit CLI to behave similar.
Additionally teach JGit not to interpret the environment variables if
the java process was explicitly started with the system properties
telling JVM which proxy to use. A call like "http_proxy=proxy1 java
-Dhttp.proxyHost=proxy2 ..." should use proxy2 as proxy.
[1] https://curl.haxx.se/docs/manpage.html
Change-Id: I2ad78f209792bf8f1285cf2f8ada8ae0c28f8e5a
* stable-4.5:
Unconditionally close repositories in RepositoryCache.clear()
Fix eviction of repositories with negative usage count
Adapt to parameter removed from
RepositoryCache.unregisterAndCloseRepository().
Change-Id: I7087667056ced401a3b3a027977f2715cd77a1c5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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>
It is necessary to register a socket connection factory to prevent the
"http protocol is not supported" error when connecting over a proxy.
Change-Id: Iedf554acef841f52c1f2e3401ef0a0583ac5253b
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Without this dependency running JGit CLI in Eclipse will hit
ClassNotFoundExceptions when HttpClient is trying to log something.
Change-Id: I2d50d9a18fac4c302de2c3a16c07f90ce3e5072e
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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>
* stable-4.5:
pgm: Fix misspelled key of an externalized string
Add missing online help for Ketch server type option in CLI daemon
Remove wrong junit dependencies in org.eclipse.jgit.pgm
Change-Id: I9cac024c0b488101b539c713b0f5ffc8c01b55bd
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Symlinks on MacOS are written as UTF-8 NFD, but
readSymbolicLink().toString() converts to NFC with potentially fewer
bytes. May occur in particular if the link target has non-ASCII
characters for which the NFC and NFD encodings differ. This may lead
to an EOFException: Short read of block.
This causes all kinds of weird effects in EGit, ranging from failing
rebases (which report the exception to the user) to EGit decorations in
the navigator silently disappearing (and never coming back).
* Rename readContentAsNormalizedString() to readSymlinkTarget() as it's
called only for symlinks. Also make it protected.
* Fix by allowing the read to succeed even if less than the expected
number of bytes are returned by the entry's input stream.
* Override in FileTreeIterator to use fs.readSymlink() directly.
Includes a new MacOS-only test.
Change-Id: I264c5972d67b1cbb1ed690580f5706e671b9affd
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Jonathan Nieder