When setupTipCommitBitmaps is called, writeBitmaps does not have any
bitmaps saved, so these calls to .add always add a single commit and
do not OR in a bitmap.
The objects returned by nextObject after a commit walk is finished
are trees and blobs. Non-commit objects do not have bitmaps
associated so the call to .add also can only add a single object.
Change-Id: I7b816145251a7fa4f1fffe0d03644257ea7f5440
* changes:
Remove BitmapRevFilter.getCountOfLoadedCommits
Make BitmapBuilder.getBitmapIndex public
Deprecate BitmapBuilder.add and introduce simpler addObject method
Add @Override annotations to BitmapIndexImpl
Rely on bitmap RevFilter to filter walk during bitmap selection
Use 'reused' bitmap to filter walk during bitmap selection
Rely on bitmap RevFilter to filter tip commit setup walk
Use 'reused' bitmap to filter tip commit setup walk
Include ancestors of reused bitmap commits in reuse bitmap again
This is the caller that the BitmapBuilder.add method was designed
around. Moving away from .add makes it more verbose but hopefully
clearer.
Change-Id: I57b1d7c1dc8fb800b242b76c606922b5aa36b9b2
This puts the code for include() in each RevFilter returned by
newRevFilter in one place and should make the code easier to
understand and modify.
Change-Id: I590ac4604b61fc1ffe7aba2ed89f8139847ccac3
The count of loaded commits is equal to the number of commits returned
by the walk. Simplify BitmapRevFilter by counting them in the caller.
Change-Id: Ia95da47831d9e89d6f8068470ec4529aaabfa7dd
Every Bitmap in current JGit code has an associated BitmapIndex. Make
it public in BitmapBuilder to make retrieving bitmaps to OR in from
that index easier.
Change-Id: I2773aa94d8b67f12194608e6317c0792a5de21e2
The BitmapIndex.BitmapBuilder.add API is subtle:
/**
* Adds the id and the existing bitmap for the id, if one
* exists, to the bitmap.
*
* @return true if the value was not contained or able to be
* loaded.
*/
boolean add(AnyObjectId objectId, int type);
Reading the name of the method does not make it obvious what it will
do. Does it add the named object to the bitmap, or all objects
reachable from it? It depends on whether the BitmapIndex owns an
existing bitmap for that object. I did not notice this subtlety when
skimming the javadoc, either. This resulted in enough confusion to
subtly break the bitmap building code (see change
I30844134bfde0cbabdfaab884c84b9809dd8bdb8 for details).
So discourage use of the add() API by deprecating it.
To replace it, provide a addObject() method that adds a single object.
This way, callers can decide whether to use addObject() or or() based
on the context.
For example,
if (bitmap.add(c, OBJ_COMMIT)) {
for (RevCommit p : c.getParents()) {
rememberToAlsoHandle(p);
}
}
can be replaced with
if (bitmap.contains(c)) {
// already included
} else if (index.getBitmap(c) != null) {
bitmap.or(index.getBitmap(c));
} else {
bitmap.addObject(c, OBJ_COMMIT);
for (RevCommit p : c.getParents()) {
rememberToAlsoHandle(p);
}
}
which is more verbose but makes it clearer that the behavior
depends on the content of index.getBitmaps().
Change-Id: Ib745645f187e1b1483f8587e99501dfcb7b867a5
This makes it easier to distinguish between implementations of methods
from the interface from helpers internal to org.eclipse.jgit.internal.storage.*.
This was illegal in Java 5 but JGit requires newer Java these days.
Change-Id: I92c65f3407a334acddd32ec9e09ab7d1d39c4dc6
This RevWalk filters out reused bitmap commits via the 'reuse' bitmap.
Avoid possible wasted time and complexity by not also redundantly
marking them UNINTERESTING.
Change-Id: Ibb714002ddac599963d148a9aab90645fcc73141
When building fullBitmap in order to determine which ancestor chain to
add this commit to, we were excluding the ancestors of reusedCommits
using markUninteresting. This use of markUninteresting is a bit
wasteful because we already have a bitmap indicating exactly which
commits should be excluded (which can save some walking). Use it.
A separate commit will remove the now-redundant markUninteresting
call.
No behavior change intended (except for performance improvement).
Change-Id: I1112641852d72aa05c9a8bd08a552c70342ccedb
This RevWalk filters out reused bitmap commits via the 'reuse' bitmap.
Avoid possible wasted time and complexity by not redundantly marking
them UNINTERESTING any more.
Change-Id: If467ccd1d75e17cf9367b2a0399fca3f9d52adf9
When garbage collecting, we decide to reuse some bitmaps in older
history from the previous pack to save time. The remainder of commit
selection only involves commits not covered by those bitmaps.
Currently we carry that out in two ways:
1. by building a bitmap representing the already-covered commits,
for easy containment checks and AND-NOT-ing against
2. by marking the reused bitmap commits as uninteresting in the
RevWalk that finds new commits
The mechanism in (2) is less efficient than (1): rw.next() will walk
back from reused bitmap commits to check whether the commit it is
about to emit is an ancestor of them, when using the bitmap from (1)
would let us perform the same check with a single contains() call.
Add a RevFilter teaching the RevWalk to perform that same check
directly using the bitmap from (1).
The next time the RevWalk is used, a different RevFilter is installed
so this does not break that.
A later commit will drop the markUninteresting calls.
No functional change intended except a possible speedup.
Change-Id: Ic375210fa69330948be488bf9dbbe4cb0d069ae6
Prior to this change, DfsInserter would not insert an object into a pack
if it already existed in another pack in the repository, even if that
pack was unreachable. Consider this sequence of events:
- Object FOO is pushed to a repository.
- Subsequent ref changes make FOO UNREACHABLE_GARBAGE.
- FOO is subsequently re-inserted using a DfsInserter, but skipped
due to existing in UNREACHABLE_GARBAGE.
- The repository is repacked; FOO will not be written into a new pack
because it is not yet reachable from a reference. If the
UNREACHABLE_GARBAGE packs are deleted, FOO disappears.
- A reference is updated to reference FOO. This reference is now broken
as FOO was removed when the repacking process deleted the
UNREACHABLE_GARBAGE pack that stored the only copy of FOO.
The garbage collector can't safely delete the UNREACHABLE_GARBAGE
pack because FOO might be in the middle of being re-inserted/re-packed.
This change writes a duplicate copy of an object if it only exists in
UNREACHABLE_GARBAGE. This "freshens" the object to give it a chance to
survive long enough to be made reachable through a reference.
Change-Id: I20f2062230f3af3bccd6f21d3b7342f1152a5532
Signed-off-by: Mike Williams <miwilliams@google.com>
Until 320a4142 (Update bitmap selection throttling to fully span
active branches, 2015-10-20), setupTipCommitBitmaps contained code
along the following lines:
for (PackBitmapIndexRemapper.Entry entry : bitmapRemapper) {
if (!reuse(entry))
continue;
RevCommit rc = (RevCommit) rw.peel(rw.parseAny(entry));
reuseCommits.add(new BitmapCommit(rc));
EWAHCompressedBitmap bitmap =
remap.ofObjectType(remap.getBitmap(rc), OBJ_COMMIT);
writeBitmaps.addBitmap(rc, bitmap, 0);
reuse.add(rc, OBJ_COMMIT);
}
writeBitmaps.clearBitmaps(); // Remove temporary bitmaps
This loop OR-ed together bitmaps for commits whose bitmaps would be
reused. A subtle point is the use of the add() method, which ORs in a
bitmap from the BitmapIndex when it exists and falls back to OR-ing in
a single bit when that bitmap does not exist in the BitmapIndex.
Commit 320a4142 removed the addBitmap step, so the bitmap does not
exist in the BitmapIndex and the fallback behavior is triggered.
Simplify and restore the intended behavior by avoiding use of the
subtle use of the add() method --- use or() directly instead.
Change-Id: I30844134bfde0cbabdfaab884c84b9809dd8bdb8
When packing is able to reuse lots of deltas from existing packs, those
objects are marked as "doNotAttemptDelta" and do not contribute to
DeltaTask's computeTopPaths() "totalWeight" calculation.
In the extreme case when all packs are reusable, "totalWeight" will be
zero. DeltaTask.partitionTasks() uses "totalWeight" to determine a
"weightPerThread" size it uses to set up DeltaTasks. When "totalWeight"
is small, partitionTasks() ends up creating a DeltaTask for every
unique path.
For a large repository, the small "weightPerThread" can result in the
creation of >100k tasks (for the MSM 3.10 Linux repository, the count
was ~150k). This makes the "task stealing" mechanism in DeltaTask very
inefficient, because every attempt to steal work does a linear walk
through all tasks, searching for the one with the most work remaining,
which is O(N^2) comparisons. For the MSM 3.10 repository when all
deltas were reusable, PackWriter.parallelDeltaSearch() took
(1615+1633+1458)/3 = 1568 seconds.
The error is that DeltaTask treats the weights of objects marked as
"doNotAttemptDelta" inconsistently. It ignores the weights when
calculating "totalWeight" but uses them when partitioning the tasks.
The fix is to also ignore them when partitioning the tasks.
With this patch applied, PackWriter.parallelDeltaSearch() on the
MSM 3.10 repository when all deltas are reused went from taking
1568 seconds to 62ms (>25k speedup).
This patch also fixes a totalWeight initialization error in
DeltaTask.computeTopPaths().
Change-Id: I2ae37efa83bca42b0e716266ae6aa9d182e76d9c
Signed-off-by: Terry Parker <tparker@google.com>
Avoid leaving the reader in suspense by handling the unusual
(!RevCommit) case first. As a nice side effect, there is less nesting
to keep track of in the rest of the loop body.
No functional change intended.
Change-Id: I1580de444fccde08070f696218c12041151a924a
When the file <git-dir>/hooks/pre-push exists make sure that is is
executing during a push. The pre-push hook runs during git push, after
the remote refs have been updated but before any objects have been
transferred.
Change-Id: Ibbb58ee3227742d1a2f913134ce11e7a135c7f4c
In order to support filters in gitattributes FS.runProcess() is made
public. Support for stdin redirection has been added. Support for binary
data on stdin/stdout (as used be clean/smudge filters) has been added.
Change-Id: Ice2c152e9391368dc5748d7b825a838e3eb755f9
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Fixed random errors in discoverGitSystemConfig() on Linux where the
process error stream was closed by readPipe() before or while
GobblerThread was reading from it.
Marked readPipe() as @Nullable and fixed potential NPE in
discoverGitSystemConfig() on readPipe() return value.
Fixed process error output randomly mixed with other threads log
messages.
Change-Id: Id882af2762cfb75f010f693b2e1c46eb6968ee82
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Add comments and rename variables in PackWriterBitmapPreparer to improve
readability.
Change-Id: I49e7a1c35307298f7bc32ebfc46ab08e94290125
Signed-off-by: Terry Parker <tparker@google.com>
Java compiler must generate synthetic access methods for private methods
and fields of the enclosing class if they are accessed from inner
classes and vice versa.
While invisible in the code, those synthetic access methods exist in the
bytecode and seem to produce some extra execution overhead at runtime
(compared with the direct access to this fields or methods), see
https://git.eclipse.org/r/58948/.
By removing the "private" access modifier from affected methods and
fields we help compiler to avoid generation of synthetic access methods
and hope to improve execution performance.
To validate changes, one can either use javap or use Bytecode Outline
plugin in Eclipse. In both cases one should look for "synthetic
access$<number>" methods at the end of the class and inner class files
in question - there should be none.
NB: don't mix this "synthetic access$" methods up with "public synthetic
bridge" methods generated to allow generic method override return types.
Change-Id: I94fb481b68c84841c1db1a5ebe678b13e13c962b
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Java compiler must generate synthetic access methods for private methods
and fields of the enclosing class if they are accessed from inner
classes and vice versa.
While invisible in the code, those synthetic access methods exist in the
bytecode and seem to produce some extra execution overhead at runtime
(compared with the direct access to this fields or methods), see
https://git.eclipse.org/r/58948/.
By removing the "private" access modifier from affected methods and
fields we help compiler to avoid generation of synthetic access methods
and hope to improve execution performance.
To validate changes, one can either use javap or use Bytecode Outline
plugin in Eclipse. In both cases one should look for "synthetic
access$<number>" methods at the end of the class and inner class files
in question - there should be none.
NB: don't mix this "synthetic access$" methods up with "public synthetic
bridge" methods generated to allow generic method override return types.
Change-Id: Ie7b65f251ec4452d5a5ed48aa0f272cf49a9aecd
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Java compiler must generate synthetic access methods for private methods
and fields of the enclosing class if they are accessed from inner
classes and vice versa.
While invisible in the code, those synthetic access methods exist in the
bytecode and seem to produce some extra execution overhead at runtime
(compared with the direct access to this fields or methods), see
https://git.eclipse.org/r/58948/.
By removing the "private" access modifier from affected methods and
fields we help compiler to avoid generation of synthetic access methods
and hope to improve execution performance.
To validate changes, one can either use javap or use Bytecode Outline
plugin in Eclipse. In both cases one should look for "synthetic
access$<number>" methods at the end of the class and inner class files
in question - there should be none.
NB: don't mix this "synthetic access$" methods up with "public synthetic
bridge" methods generated to allow generic method override return types.
Change-Id: I0ebaeb2bc454cd8051b901addb102c1a6688688b
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Java compiler must generate synthetic access methods for private methods
and fields of the enclosing class if they are accessed from inner
classes and vice versa.
While invisible in the code, those synthetic access methods exist in the
bytecode and seem to produce some extra execution overhead at runtime
(compared with the direct access to this fields or methods), see
https://git.eclipse.org/r/58948/.
By removing the "private" access modifier from affected methods and
fields we help compiler to avoid generation of synthetic access methods
and hope to improve execution performance.
To validate changes, one can either use javap or use Bytecode Outline
plugin in Eclipse. In both cases one should look for "synthetic
access$<number>" methods at the end of the class and inner class files
in question - there should be none.
NB: don't mix this "synthetic access$" methods up with "public synthetic
bridge" methods generated to allow generic method override return types.
Change-Id: If53ec94145bae47b74e2561305afe6098012715c
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Expose the following bitmap selection parameters via PackConfig:
"bitmapContiguousCommitCount", "bitmapRecentCommitCount",
"bitmapRecentCommitSpan", "bitmapDistantCommitSpan",
"bitmapExcessiveBranchCount", and "bitmapInactiveBranchAge".
The value of bitmapContiguousCommitCount, whereby bitmaps are
created for the most recent N commits in a branch, has never
been verified. If experiments show that they are not valuable,
then we can simplify the implementation so that there is only
a concept of recent and distant commit history (defined by
"bitmapRecentCommitCount"), and the only controls we need are
"bitmapRecentCommitSpan" and "bitmapDistantCommitSpan".
Change-Id: I288bf3f97d6fbfdfcd5dde2699eff433a7307fb9
Signed-off-by: Terry Parker <tparker@google.com>
Replace the “bitmapCommitRange” parameter that was recently introduced
with two new parameters: “bitmapExcessiveBranchCount” and
“bitmapInactiveBranchAgeInDays”. If the count of branches does not
exceed “bitmapExcessiveBranchCount”, then the current algorithm is kept
for all branches.
If the branch count is excessive, then the commit time for the tip
commit for each branch is used to determine if a branch is “inactive”.
"Active" branches get full commit selection using the existing
algorithm. "Inactive" branches get fewer bitmaps near the branch tips.
Introduce a "contiguousCommitCount" parameter that always enforces that
the N most recent commits in a branch are selected for bitmaps. The
previous nextSelectionDistance() algorithm created anywhere from 1-100
contiguous bitmaps at branch tips.
For example, consider a branch with commits numbering 0-300, with 0
being the most recent commit. If the most recent 200 commits are not
merge commits and the 200th commit was the last one selected,
nextSelectionDistance() returned 100, causing commits 200-101 to be
ignored. Then a window of size 100 was evaluated, searching for merge
commits. Since no merge commits are found, the next commit (commit 0)
was selected, for a total of 1 commit in the topmost 100 commits.
If instead the 250th commit was selected, then by the same logic
commit 50 is selected. At that point nextSelectionDistance() switches to
selecting consecutive commits, so commits 0-50 in the topmost 100
commits are selected. The "contiguousCommitCount" parameter provides
more determinism by always selecting a constant number or topmost
commits.
Add an optimization to break out of the inner loop of selectCommits() if
all of the commits for the current branch have already been found.
When reusing bitmaps from an existing pack, remove unnecessary
populating and clearing of the writeBitmaps/PackBitmapIndexBuilder.
Add comments to PackWriterBitmapPreparer, rename methods and variables
for readability.
Add tests for bitmap selection with and without merge commits and with
excessive branch pruning triggered.
Note: I will follow up with an additional change that exposes the new
parameters through PackConfig.
Change-Id: I5ccbb96c8849f331c302d9f7840e05f9650c4608
Signed-off-by: Terry Parker <tparker@google.com>
Since Git 2.6 wildcard restrictions for refspecs have been loosened:
refspecs like "refs/heads/*foo:refs/heads/foo*" are valid now.
See Git commit 8d3981ccbed9fc211b4e67105015179d9d2a5692
Change-Id: Icb78afbd282c425173b3a7bc10eadc4015689bb8
Signed-off-by: Marc Strapetz <marc.strapetz@syntevo.com>
Building on top of https://git.eclipse.org/r/#/c/56391/
Here we preserve compatibility with JetS3t
and add 2 new native JGit encryption implementations.
For reference, see connection configuration files:
* Version 0: jgit-s3-connection-v-0.properties
* Version 1: jgit-s3-connection-v-1.properties
* Version 2: jgit-s3-connection-v-2.properties
Change-Id: I713290bcacbe92d88e5ef28ce137de73dd1abe2f
Signed-off-by: Andrei Pozolotin <andrei.pozolotin@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
See previous attempt: https://git.eclipse.org/r/#/c/16674/
Here we preserve as much of JetS3t mode as possible
while allowing to use new Java 8+ PBE algorithms
such as PBEWithHmacSHA512AndAES_256
Summary of changes:
* change pom.xml to control long tests
* add WalkEncryptionTest.launch to run long tests
* add AmazonS3.Keys to to normalize use of constants
* change WalkEncryption to support AES in JetS3t mode
* add WalkEncryptionTest to test remote encryption pipeline
* add support for CI configuration for live Amazon S3 testing
* add log4j based logging for tests in both Eclipse and Maven build
To test locally, check out the review branch, then:
* create amazon test configuration file
* located your home dir: ${user.home}
* named jgit-s3-config.properties
* file format follows AmazonS3 connection settings file:
accesskey = your-amazon-access-key
secretkey = your-amazon-secret-key
test.bucket = your-bucket-for-testing
* finally:
* run in Eclipse: WalkEncryptionTest.launch
* or
* run in Shell: mvn test --define test=WalkEncryptionTest
Change-Id: I6f455fd9fb4eac261ca73d0bec6a4e7dae9f2e91
Signed-off-by: Andrei Pozolotin <andrei.pozolotin@gmail.com>
If the checkout path is currently a non-empty directory (and was a link
or a regular file before), this directory will be removed before
performing checkout, but only if the checkout path is specified.
Bug: 474973
Change-Id: Ifc6c61592d9b54d26c66367163acdebea369145c
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
A bitmap index contains bitmaps for a set of commits in a pack file.
Creating a bitmap for every commit is too expensive, so heuristics
select the most "important" commits. The most recent commits are the
most valuable. To clone a repository only those for the branch tips are
needed. When fetching, only commits since the last fetch are needed.
The commit selection heuristics generally work, but for some
repositories the number of selected commits is prohibitively high. One
example is the MSM 3.10 Linux kernel. With over 1 million commits on
2820 branches, the current heuristics resulted in +36k selected commits.
Each uncompressed bitmap for that repository is ~413k, making it
difficult to complete a GC operation in available memory.
The benefit of creating bitmaps over the entire history of a repository
like the MSM 3.10 Linux kernel isn't clear. For that repository, most
history for the last year appears to be in the last 100k commits.
Limiting bitmap commit selection to just those commits reduces the count
of selected commits from ~36k to ~10.5k. Dropping bitmaps for older
commits does not affect object counting times for clones or for fetches
on clients that are reasonably up-to-date.
This patch defines a new "bitmapCommitRange" PackConfig parameter to
limit the commit selection process when building bitmaps. The range
starts with the most recent commit and walks backwards. A range of 10k
considers only the 10000 most recent commits. A range of zero creates
bitmaps only for branch tips. A range of -1 (the default) does not limit
the range--all commits in the pack are used in the commit selection
process.
Change-Id: Ied92c70cfa0778facc670e0f14a0980bed5e3bfb
Signed-off-by: Terry Parker <tparker@google.com>
On a server also running Gerrit that is using RepoCommand to
convert from an XML manifest to a git submodule superproject
periodically, it would be handy to be able to use Gerrit's
submodule subscription feature[1] to update the superproject
automatically between RepoCommand runs as changes are merged
in each subprojects.
This requires setting the 'branch' field for each submodule
so that Gerrit knows what branch to watch. Add an option to
do that.
Setting the branch field also is useful for plain Git users,
since it allows them to use "git submodule update --remote" to
manually update all submodules between RepoCommand runs.
[1] https://gerrit-review.googlesource.com/Documentation/user-submodules.html
Change-Id: I1a10861bcd0df3b3673fc2d481c8129b2bdac5f9
Signed-off-by: Stefan Beller <sbeller@google.com>
* stable-4.1:
pgm: Open RevWalk and TreeWalk in try-with-resource
ant: Open Repository and Git in try-with-resource
pgm: Create instances of Git in try-with-resource
FanoutBucket: Create ObjectInserter.Formatter in try-with-resource
Fix compiler warnings in DiffFormatter.writeGitLinkText
Change-Id: I448ecc9a1334977d9f304dd61ea20c7a8e692b10
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Clirr doesn't support Java 8 hence use japicmp instead.
See https://github.com/siom79/japicmp
Change-Id: If4b30a6d6aa849b4d6b3b0c900558c609822840c
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This patch makes JGit parsing of ignore rules containing unmatched '['
bracket compatible to the Git CLI.
Since '[' starts character group, Git tries to parse the ignore rule as
a shell glob pattern and if the character group is not closed, the glob
pattern is invalid and so the ignore rule never matches anything.
See also http://article.gmane.org/gmane.comp.version-control.git/278699.
Bug: 478490
Change-Id: I734a4d14fcdd721070e3f75d57e33c2c0700d503
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
- Remove declaration of IOException that is no longer thrown
- Add missing //$NON-NLS-1$ to prevent "Non-externalized string literal"
warning.
These warnings seem to have been introduced by If13f7b406.
Change-Id: I30058eed31b92067a6ab22e787732b08e29f8d63
Signed-off-by: David Pursehouse <david.pursehouse@sonymobile.com>
Since 4.0 we require Java 7 so there is no longer a need to override the
following methods in FS_POSIX, FS_Win32, FS_Win32_Cygwin
- lastModified()
- setLastModified()
- length()
- isSymlink()
- exists()
- isDirectory()
- isFile()
- isHidden()
Hence implement these methods in FS and remove overrides in subclasses.
Change-Id: I5dbde6ec806c66c86ac542978918361461021294
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
As discussed on https://git.eclipse.org/r/53836 it does not make sense
to have two similar utility classes in same package with intersecting
functionality. To not break the API, all methods from FileUtil are
copied to FileUtils, all FileUtil API is made deprecated and redirecting
now to FileUtils. Moved simple methods which are available in Java 7 API
are made package private and can be removed at any point later entirely
(right now they are in use).
Bug: 475070
Change-Id: Idffcf9840496c448173af7c052d8898ada68e27b
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
SystemReader.isMacOs() and SystemReader.isWindows() return values are
unlikely to change during the JVM lifetime (except tests). Don't read
system properties each time the methods are called, just use previously
calculated value.
Change-Id: I495521f67a8b544e7b7247d99bbd05a42ea16d20
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
An attempt to re-implement not well documented Git CLI behavior for
patterns with backslashes.
It looks like Git silently ignores all \ characters in ignore rules, if
they are NOT covered by 3 cases described in [1]:
{quote}
1) ... Put a backslash ("\") in front of the first hash for patterns
that begin with a hash.
...
2) Trailing spaces are ignored unless they are quoted with backslash
("\").
...
3) Put a backslash ("\") in front of the first "!" for patterns that
begin with a literal "!", for example, "\!important!.txt".
{quote}
Undocumented also is the fact that backslash itself can be escaped by
backslash.
So \h\e\l\l\o\.t\x\t rule matches hello.txt and a\\\\b a\b in Git CLI.
Additionally, the glob parser [2] knows special meaning of backslash:
{quote}
One can remove the special meaning of '?', '*' and '[' by preceding
them by a backslash, or, in case this is part of a shell command
line, enclosing them in quotes. Between brackets these characters
stand for themselves. Thus, "[[?*\]" matches the four characters
'[', '?', '*' and '\'.
{quote}
[1] https://www.kernel.org/pub/software/scm/git/docs/gitignore.html
[2] http://man7.org/linux/man-pages/man7/glob.7.html
Bug: 478065
Change-Id: I3dc973475d1943c5622103701fa8cb3ea0684e3e
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Currently we fail to properly recognize character group if the pattern
before character group contains opening bracket.
See comment from Sebastien Arod on https://git.eclipse.org/r/56678/
Change-Id: I70d3657a2a328818ea2bdc1409d18ecb3a85825b
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Current DiffFormat behavior regarding submodules (aka git links) is
incorrect. The "Subproject commit <sha1>" appears as part of the diff
header, rather than as its own hunk.
--> From JGit implementation
diff --git a/plugins/cookbook-plugin b/plugins/cookbook-plugin
index b9d3ca8..ec6ed89 160000
--- a/plugins/cookbook-plugin
+++ b/plugins/cookbook-plugin
-Subproject commit b9d3ca8a65030071e28be19296ba867ab424fbbf
+Subproject commit ec6ed89c47ba7223f82d9cb512926a6c5081343e
--> From C Git 2.5.2
diff --git a/plugins/cookbook-plugin b/plugins/cookbook-plugin
index b9d3ca8..ec6ed89 160000
--- a/plugins/cookbook-plugin
+++ b/plugins/cookbook-plugin
@@ -1 +1 @@
-Subproject commit b9d3ca8a65030071e28be19296ba867ab424fbbf
+Subproject commit ec6ed89c47ba7223f82d9cb512926a6c5081343e
The current way of processing submodules results in no hunk header and
includes the contents of the hunk as part of the headers. To fix this, we
can't just have our writeGitLinkDiffText output the hunk header. We have
to change the flow so that the raw text gets parsed as a diff. The easiest
way to do this is to fake the RawText in the FormatResult when we have a
GITLINK.
It should be noted that it seems possible for there to be a difference
between a GITLINK and a non-GITLINK, but I don't think this can happen in
practice, so I don't think we need to worry too much about it.
This patch also fixes up the test for GitLink headers, as the test was
for the old behavior. My setup has 3 other failing tests which may or
may not be the result of environmental changes. However, the same tests
fail without this commit, so I do not believe they are related.
Bug: 477759
Change-Id: If13f7b406904fad814416c93ed09ea47ef183337
Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Ignore rules should escape $^(){}+| chars if using regular expressions,
because they should be treated literally if they aren't part of a
character group.
Bug: 478055
Change-Id: Ic7276442d7f8f02594b85eae1ef697362e62d3bd
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
If a client mistakenly tries to send a tag object as a shallow line
JGit blindly assumes this is a commit and tries to parse the tag
buffer using the commit parser. This can cause an obtuse error like:
InvalidObjectIdException: Invalid id: t c0ff331234...
The "t" comes from the "object c0ff331234..." line of the tag tring
to be parsed as though it where the "tree" line of a commit.
Run any client supplied shallow lines through the RevWalk to lookup
the object types. Fail fast with a protocol exception if any of them
are non-commit.
Skip objects not known to this repository. This matches behavior
with git-core's upload-pack, which sliently skips over any shallow
line object named by the client but not known by the server.
Change-Id: Ic6c57a90a42813164ce65c2244705fc42e84d700
Properties.containsKey() is the correct call here; contains() was testing
if a value is present but the key is what was meant.
Change-Id: Ice72c9f4388583e18cf8aca6e837cc4299fd07fd
When we have a URI that contains an empty path component (that is
it only contains a "/") we want to fall back to the host as
humanish name.
This change is according to the behavior of upstream git, which
falls back on the hostname when guessing directory names for
newly cloned repositories (see [1] for the discussion).
[1] http://article.gmane.org/gmane.comp.version-control.git/274669
Change-Id: I44400c6ab72a2722d2155d53d63671bd867d6c44
Signed-off-by: Patrick Steinhardt <ps@pks.im>
If no refs match the input list and we are writing to a batch,
the returned new commit from write() will match the current commit.
Adding a command to the batch for this case is harmless as it will
succeed, but it's more straightforward to just skip adding a command
in this case.
Add tests or the combination of saving matching refs and saving to a
batch.
Change-Id: I6837389b08e6c80bc2d4c9e9c506d07293ea5fb2
This header was removed unintentionally from some bundles in
3a4a5a4e57. Restore it to ensure lazy
activation of bundles.
Change-Id: I1f841f978fb93278e3ec0533a01f1363510dd976
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
In Bug 476164 it was reported that EGit doesn't start when the platform
comes with jsch 0.1.51 while this version of EGit/JGit brings jsch
0.1.53. This could be caused by outdated uses-clauses. Hence recompute
them using PDE tooling.
Bug: 476164
Change-Id: I185ba097884ead9cd034eba842bd3bf34181a99b
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
It was reported in [1] that 197e3393a5 led
to a performance regression in a BFG benchmark. Analysis showed that
this is caused by the exists() method in FS_POSIX, now overriding the
default implementation in FS. The default implementation of FS.exists()
uses java.io.File.exists(), while the new implementation in FS_POSIX
uses java.nio.file.Files.exists() - by simply removing the override in
FS_POSIX, performance was restored.
Profiling showed that java.nio.file.Files.exists() is substantially
slower than java.io.File.exists(), to the point where the exists() call
doubles the average cost of a call to
ObjectDirectory.insertUnpackedObject() - which the BFG uses a lot,
because it's rewriting history. Average times measured on Ubuntu were:
java.io.File.exists() - 4 microseconds
java.nio.file.Files.exists() - 60 microseconds
The loose object exists test should be using java.io.File and not FS.
ObjectDirectory uses FS.resolve() to traverse symlinks to objects but
then once inside objects all 256 sharded directories should be real
directories, and the object files should be real files, not dangling
symlinks. java.io.File.exists() is sufficient here, and faster.
Change ObjectDirectory to use File.exists() once its computed the File
handle.
This does mean JGit cannot run ObjectDirectory code on an abstract
virtual filesystem plugged into NIO2. If you really want to run JGit on
an esoteric non-standard filesystem like "in memory" you should look at
the DFS storage backend, which has fewer abstraction points to deal
with. Or write your own from scratch.
[1] https://dev.eclipse.org/mhonarc/lists/jgit-dev/msg02954.html
Change-Id: I74684dc3957ae1ca52a7097f83a6c420aa24310f
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
- add @since annotation for new API method
- silence non-externalized String warning
Change-Id: I864176ced64e9569e7f2cdf8f777720655bfc578
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
On a local filesystem the packed-refs file will be orphaned if it is
replaced by another client while the current client is reading the old
one. However, since NFS servers do not keep track of open files, instead
of orphaning the old packed-refs file, such a replacement will cause the
old file to be garbage collected instead. A stale file handle exception
will be raised on NFS servers if the file is garbage collected (deleted)
on the server while it is being read. Since we no longer have access to
the old file in these cases, the previous code would just fail. However,
in these cases, reopening the file and rereading it will succeed (since
it will reopen the new replacement file). So retrying the read is a
viable strategy to deal with stale file handles on the packed-refs file,
implement such a strategy.
Since it is possible that the packed-refs file could be replaced again
while rereading it (multiple consecutive updates can easily occur with
ref deletions), loop on stale file handle exceptions, up to 5 extra
times, trying to read the packed-refs file again, until we either read
the new file, or find that the file no longer exists. The limit of 5 is
arbitrary, and provides a safe upper bounds to prevent infinite loops
consuming resources in a potential unforeseen persistent error
condition.
Change-Id: I085c472bafa6e2f32f610a33ddc8368bb4ab1814
Signed-off-by: Martin Fick<mfick@codeaurora.org>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Add a public API to the FileUtils to determine if an IOException is a
stale NFS file handle exception. This will make it easier to detect
such errors, and interpret them consistently throughout the codebase.
This new API is a bit more lenient in its detection than the previous
detection, and should be able to detect some errors which previously
were not identified as stale file handle exceptions because they had the
word NFS in the error message. Adjust the packfile handling code to use
this new API for detection.
Change-Id: I21f80014546ba1afec7335890e5ae79e7f521412
Signed-off-by: Martin Fick<mfick@codeaurora.org>
Signaling the need to flush() only via the interrupted status of a
copying thread doesn't work realiably with jsch. The write() method of
com.jcraft.jsch.Session catches the InterruptedException in several
places. As a result StreamCopyThread can easily miss the interrupt if it
was interrupted during the dst.write() or dst.flush() call. When it
happens, StreamCopyThread will not send some data to the remote side and
will not get the response back, because remote side will wait for more
data from us.
The flushCount field incremented during flush() method guarantees we
don't miss flush() even if jsch catches InterruptedException in
dst.write() or dst.flush() calls.
Checking the flushCount after dst.write() is needed because dst.write()
can clear interrupt status, in this case the next blocking src.read()
won't throw an exception and we will not call flush().
Flush is performed only after src.read() was blocked and thrown an
InterruptedIOException exception, this guarantees that we flush all the
data available in src so far (src.read() doesn't block while more is
available).
FlushCount is reset to 0 only when there were no flush() calls since
last blocked read, that means we flushed all data available in src. If
there were flush() calls, the interrupt status is restored, so next
blocked read will throw InterruptedException and we will flush()
again.
Change-Id: I692b226edaff502f06235ec05da9052b5fe6478a
Signed-off-by: Dmitry Neverov <dmitry.neverov@gmail.com>
There should be no functional change, the logic updated only to make
code simple so that compiler can understand what is going for. Removed
all @SuppressWarnings("null") annotations since they cannot be used if
"org.eclipse.jdt.core.compiler.problem.potentialNullReference" option is
set to the "error" level.
Bug: 470647
Change-Id: Ie93c249fa46e792198d362e531d5cbabaf41fdc4
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
- use NIO2's Files.move() to reimplement rename()
- provide a second method accepting CopyOptions which can be used to
request atomic move.
Change-Id: Ibcf722978e65745218a1ccda45344ca295911659
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Root commits are commits with zero parents. If a commmit has no
parents it is the first commit in the repository. In general the root
commits should be unique for any given project, as the first commit
will be created at a different time, by a different user with its own
message. These root commits can be used as a "fingerprint" to
identify disjoint histories.
Change-Id: Id891dbc1f17c816cea404569578bb7635ff85cdb
The FS class and the subclasses FS_POSIX assumed in the findHook()
method that every repository has a valid gitDir. But in tests when using
in-memory-repositories this is not true and this method was generating
NPEs. Change the method to return null if no repository directory can be
determined.
Change-Id: I38a4d36dc6452b5dacae3d0dbf562b569ca3c19b
DfsGarbageCollector asks PackWriter for the set of objects packed
after the bitmap index is written out. This is now null as it was
cleared to release memory. Instead use PackBitmapIndexBuilder to
build the set as it also has the objects.
Reduce memory in PackBitmapIndexBuilder by fully discarding the
ObjectToPack instances. This was the original intent of commit
4bb523475d ("PackWriter: shed memory while creating bitmaps")
but failed as the instances were still held live here.
Switch to BlockList instead of ObjectToPack[]. This allows the
JVM to allocate many smaller arrays instead of one contiguous
array with 5.2M reference pointers. In a tight heap the smaller
allocations are more feasible.
Reduce the initial EWAHCompressedBitmaps for the 4 type maps. On
average a typical repository is 30% commits, 30% trees and 30% blobs.
These bitmaps are typically very dense. PackWriter orders objects by
commit, tree, blob when writing the file so these should always be a
very dense run of 1s with some 0s before and after. So even the 1/3rd
allocation is likely too large, but the later trim() will reduce the
internal buffer anyway.
Change-Id: If0b80a31cb00894f1485ff8f53ef7ae5a759a046
After jgit moved to Java 7 there is no need in an extra
Java7BasicAttributes class. Also all fields of Attributes can be made
final now.
Change-Id: I0be6daf7758189b0eecc4e26294bd278ed8bf7a0
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Once bitmap creation begins the internal maps required for packing are
no longer necessary. On a repository with 5.2M objects this can save
more than 438 MiB of memory by allowing the ObjectToPack instances to
get garbage collected away.
Downside is the PackWriter cannot be used for any further opertions
except to write the bitmap index. This is an acceptable trade-off as
in practice nobody uses the PackWriter after the bitmaps are built.
Change-Id: Ibfaf84b22fa0590896a398ff659a91fcf03d7128
For construction performance each new EWAHBitmap is allocated at the
roughly worst-case size the bitmap would need if all of the words must
be literal and no run length compression is available. In practice
this is far larger than is required, wasting heap memory while the
bitmaps are computed.
Trim down each bitmap to its minimum required size. This copies the
internal array to a new smaller array, allowing the GC to reclaim the
prior larger array for reuse.
A single bitmap of 5.2M bits is only 79 KiB of memory without this
trim call but 15,000 such bitmaps is 1.1 GiB. Trimming can help fit
a larger number of bitmaps during processing.
Change-Id: I2bd19a786189db5b01c4c96f209b83de50e10c3b
The bitmap preparer only needs commit graph topology; it does not use
the message body. Allow the RevWalk to free the body after the commit
has been parsed to save memory.
Change-Id: I97d4a440c9fc313873fd224bd05b9d9e3dc575db
The WorkingTreeIterator.isEntryIgnored() should use originally requested
file mode while descending to the file tree root and checking ignore
rules. Original code asking isEntryIgnored() on a file was using
directory mode instead if the .gitignore was not located in the same
directory.
Bug: 473506
Change-Id: I9f16ba714c3ea9e6585e9c11623270dbdf4fb1df
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
When during Merge for a certain path OURS & BASE contains a file and
THEIRS contains a folder there was a bug in JGit leading to unnecessary
conflicts. This commit fixes it and adds a test for this situation.
Bug: 472693
Change-Id: I71fac5a6a2ef926c01adc266c6f9b3275e870129
Also-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
According to [1] leading spaces are allowed in ignore rules and trailing
spaces are allowed too if they are escaped via backslash.
[1] https://www.kernel.org/pub/software/scm/git/docs/gitignore.html
Bug: 472762
Change-Id: I5e3ae5599cb9e5d80072f38c82c20cbc9475a18a
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Catch unexpected PatternSyntaxException and convert it to
InvalidPatternException. Log such errors, do not silently ignore them.
Bug: 463581
Change-Id: Id0936d9816769ec0cfae1898beda0f7a3c146e67
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
According to [1] backslash can escape leading special characters '#' and
'!' in ignore rules, so that they are treated literally.
[1] https://www.kernel.org/pub/software/scm/git/docs/gitignore.html
Bug: 463581
Change-Id: I4c02927413a9c63ea5dbf2954877080d902ec1b2
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
While checking if we should consider an ignore rule without '[]'
brackets as a regular expression, check if the backslash escapes one of
the glob special characters '?', '*', '[', '\\'. If not, backslash is
not a part of a regex and should be treated literally.
Bug: 463581
Change-Id: I85208c7f85246fbf6c5029ce3c8b7bb8f4dbd947
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Rather than lazily parsing the push in this method, parse it at the
end of recvCommands(), which already contains the necessary try/catch
for handling this error. This allows later callers to avoid having to
handle this condition superfluously.
Change-Id: I5dcaf1a44bf4e321adc281e3381e7e17ac89db06
Consider a BatchRefUpdate produced by Gerrit Code Review, where the
original command pushed over the wire might refer to
"refs/for/master", but that command is ignored and replaced with some
additional commands like creating "refs/changes/34/1234/1". We do not
want to store the cert in "refs/for/master@{cert}", since that may
lead someone looking to the ref to the incorrect conclusion that that
ref exists.
Add a separate put method that takes a collection of commands, and
only stores certs on those refs that have a matching command in the
cert.
Change-Id: I4661bfe2ead28a2883b33a4e3dfe579b3157d68a
Inspired by a proposal from gitolite[1], where we store a file in
a tree for each ref name, and the contents of the file is the latest
push cert to affect that ref.
The main modification from that proposal (other than lacking the
out-of-git batching) is to append "@{cert}" to filenames, which allows
storing certificates for both refs/foo and refs/foo/bar. Those
refnames cannot coexist at the same time in a repository, but we do
not want to discard the push certificate responsible for deleting the
ref, which we would have to do if refs/foo in the push cert tree
changed from a tree to a blob.
The "@{cert}" syntax is at least somewhat consistent with
gitrevisions(7) wherein @{...} describe operators on ref names.
As we cannot (currently) atomically update the push cert ref with the
refs that were updated, this operation is inherently racy. Kick the can
down the road by pushing this burden on callers.
[1] cf062b8bb6/contrib/hooks/repo-specific/save-push-signatures
Change-Id: Id3eb32416f969fba4b5e4d9c4b47053c564b0ccd
This will allow us to write the super project in a branch other than
master.
Change-Id: I578ed9ecbc6423416239e31ad644531dae9fb5c3
Signed-off-by: Yuxuan 'fishy' Wang <fishywang@google.com>
Primarily to aid in writing end-to-end tests, which must be written
outside this package as we don't currently have a Bouncy Castle
dependency.
Change-Id: Ia24179773140d9ecc616b3a6b2e630c85d800157
We have done this since forever with the "wanted old new ref" error,
so let's do it for other such errors thrown in the same block as well.
Change-Id: Ib3b1c7f05e31a5b3e40e85eb07b16736920a033b
When pushing to an HTTP server using the C git client, I observed a
certificate lacking a pushee field. Handle this gracefully in the
parser.
Change-Id: I7f3c5fa78f2e35172a93180036e679687415cac4
We intend to store received push certificates somewhere, like a
particular ref in the repository in question. For reading data back
out, it will be useful to read push certificates (without pkt-line
framing) in a streaming fashion.
Change-Id: I70de313b1ae463407b69505caee63e8f4e057ed4
Discussion on the git mailing list has concluded[1] that the intended
behavior for all (non-sideband) portions of the receive-pack protocol
is for trailing LFs in pkt-lines to be optional. Go back to using
PacketLineIn#readString() everywhere.
For push certificates specifically, we agreed that the payload signed
by the client is always concatenated with LFs even though the client
MAY omit LFs when framing the certificate for the wire. This is still
reflected in the implementation of PushCertificate#toText().
[1] http://thread.gmane.org/gmane.comp.version-control.git/273175/focus=273412
Change-Id: I817231c4d4defececb8722142fea18ff42e06e44
In most texts we use "cannot" hence instead of escaping the apostroph in
"can't" use "cannot".
Bug: 471796
Change-Id: Icda5b4db38076789d06498428909306aef3cb68b
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
ObjectId.fromString already throws InvalidObjectIdException for most
malformed object ids, but for this kind it previously threw
IllegalArgumentException. Since InvalidObjectIdException is a child of
IllegalArgumentException, callers that catch IllegalArgumentException
will continue to work.
Change-Id: I24e1422d51607c86a1cb816a495703279e461f01
Signed-off-by: Jonathan Nieder <jrn@google.com>
The invalidId message in JGitText and the asAscii bad id both contain a
colon, so the resulting message would say
Invalid id: : a78987c98798ufa
Fix it by keeping the colon in the translated message and not adding
another colon programmatically.
Noticed by code inspection.
Change-Id: I13972eebde27a4128828e6c64517666f0ba6288b
Signed-off-by: Jonathan Nieder <jrn@google.com>
Add methods that allow to unregister repositories from the
RepositoryCache individually.
Bug: 470234
Change-Id: Ib918a634d829c9898072ae7bdeb22b099a32b1c9
Signed-off-by: Tobias Oberlies <tobias.oberlies@sap.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
For loose objects an expiration date can be set which will save too
young objects from being deleted. Add the same for packfiles. Packfiles
which are too young are not deleted.
Bug: 468024
Change-Id: I3956411d19b47aaadc215dab360d57fa6c24635e
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This may be used by e.g. a custom reflog implementation to record
this information along with the ref update.
Change-Id: I44adbfad704b76f9c1beced6e1ce82eaf71410d2
These differ subtly from a PersonIdent, because they can contain
anything that is a valid User ID passed to gpg --local-user. Upstream
git push --signed will just take the configuration value from
user.signingkey and pass that verbatim in both --local-user and the
pusher field of the certificate. This does not necessarily contain an
email address, which means the parsing implementation ends up being
substantially different from RawParseUtils.parsePersonIdent.
Nonetheless, we try hard to match PersonIdent behavior in
questionable cases.
Change-Id: I37714ce7372ccf554b24ddbff56aa61f0b19cbae
The signature is intended to be passed to a verification library such
as Bouncy Castle, which expects these lines to be present in order to
parse the signature.
Change-Id: I22097bead2746da5fc53419f79761cafd5c31c3b
This is the subclass of IOException already thrown by
BaseReceivePack#recvCommands when encountering an invalid value on
the wire. That's what PushCertificateParser is doing too, so use the
same subclass.
Change-Id: I1d323909ffe70757ea56e511556080695b1a0c11
The default behavior is to read a repository's signed push
configuration from that repo's config file, but this is not very
flexible when it comes to managing groups of repositories (e.g. with
Gerrit). Allow callers to override the configuration using a POJO.
Change-Id: Ib8f33e75daa0b2fbd000a2c4558c01c014ab1ce5
Add a missing continues to prevent falling through to the command
parsing section. The first continue happens when the command list is
empty, so change the condition to see whether we have read the first
line, rather than any commands.
Fix comparison to BEGIN_SIGNATURE to use raw line with newline.
Change-Id: If3d92f5ceade8ba7605847a4b2bc55ff17d119ac
a85e817d is a slightly breaking API change to classes that were
technically public and technically released in 4.0. However, it is
highly unlikely that people were actually depending on public behavior,
since there were no public methods to create PushCertificates with
anything other than null field values, or a PushCertificateParser that
did anything other than infinite loop or throw exceptions when reading.
Change-Id: I1d0ba9ea0a347e8ff5a0f4af169d9bb18c5838d2
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
UploadPackLogger is incorrectly named--it can be used to trigger any
post upload action, such as GC/compaction. This change introduces
PostUploadHook/PostUploadHookChain to replace
UploadPackLogger/UploadPackLoggerChain and deprecates the latter.
It also introduces PackStatistics as a replacement for
PackWriter.Statistics, since the latter is not public API.
It changes PackWriter to use PackStatistics and reimplements
PackWriter.Statistics to delegate to PackStatistics.
Change-Id: Ic51df1613e471f568ffee25ae67e118425b38986
Signed-off-by: Terry Parker <tparker@google.com>
This method is documented to take a branch name (not a possibly null
string). The only way a caller could have set null without either
re-setting to a sane value afterward or producing NullPointerException
was to also call setNoCheckout(true), in which case there would have
been no reason to set the branch in the first place.
Make setBranch(null) request the default behavior (remote's default
branch) instead, imitating C git's clone --no-branch.
Change-Id: I960e7046b8d5b5bc75c7f3688f3a075d3a951b00
Signed-off-by: Jonathan Nieder <jrn@google.com>
A non-bare clone command with null remote produces a
NullPointerException when trying to produce a refspec to fetch against.
In a bare repository, a null remote name is accepted by mistake,
producing a configuration with items like 'remote.url' instead of
'remote.<remote>.url'. This was never meant to work.
Instead, let's make setRemote(null) undo any previous setRemote calls
and re-set the remote name to DEFAULT_REMOTE, imitating C git clone's
--no-origin option.
While we're here, add some tests for setRemote working normally.
Change-Id: I76f502da5e677df501d3ef387e7f61f42a7ca238
Signed-off-by: Jonathan Nieder <jrn@google.com>
call() throws InvalidRemoteException if uri == null, so there should
never be reason to leave the URI set to null. Document this.
Change-Id: I7f2cdbe8042d99cf8a3c1a8c4c2dcb58c5b8c305
Signed-off-by: Jonathan Nieder <jrn@google.com>
These commands' monitor fields can never be null unless someone passes
null to setProgressMonitor. Anyone passing null probably meant to
disable the ProgressMonitor, so do that (by falling back to
NullProgressMonitor.INSTANCE) instead of saving a null and eventually
producing NullPointerException.
Change-Id: I63ad93ea8ad669fd333a5fd40880e7583ba24827
Signed-off-by: Jonathan Nieder <jrn@google.com>
A project's name attribute is required according to repo's
doc/manifest-format.txt:
<!ELEMENT project (annotation*,
project*)>
<!ATTLIST project name CDATA #REQUIRED>
Enforcing this in code makes reading easier (in particular making it
clearer that getName() and getPath() can never return null).
Change-Id: I8c7014dd6042183d7fecb2202af5acdc384aa8e4
Signed-off-by: Jonathan Nieder <jrn@google.com>
- Consistently return structured data, such as actual ReceiveCommands,
which is more useful for callers that are doing things other than
verifying the signature, e.g. recording the set of commands.
- Store the certificate version field, as this is required to be part
of the signed payload.
- Add a toText() method to recreate the actual payload for signature
verification. This requires keeping track of the un-chomped command
strings from the original protocol stream.
- Separate the parser from the certificate itself, so the actual
PushCertificate object can be immutable. Make a fair attempt at deep
immutability, but this is not possible with the current mutable
ReceiveCommand structure.
- Use more detailed error messages that don't involve NON-NLS strings.
- Document null return values more thoroughly. Instead of having the
undocumented behavior of throwing NPE from certain methods if they
are not first guarded by enabled(), eliminate enabled() and return
null from those methods.
- Add tests for parsing a push cert from a section of pkt-line stream
using a real live stream captured with Wireshark (which, it should
be noted, uncovered several simply incorrect statements in C git's
Documentation/technical/pack-protocol.txt).
This is a slightly breaking API change to classes that were
technically public and technically released in 4.0. However, it is
highly unlikely that people were actually depending on public
behavior, since there were no public methods to create
PushCertificates with anything other than null field values, or a
PushCertificateParser that did anything other than infinite loop or
throw exceptions when reading.
Change-Id: I5382193347a8eb1811032d9b32af9651871372d0
C git's receive-pack.c strips trailing newlines in command lists when
present[1], although send-pack.c does not send them, at least in the
case of command lists[2]. Change JGit to match this behavior.
Add tests.
This also fixes parsing of commands in the push cert, which, unlike
commands sent in the non-push case, always have trailing newlines.
[1] 7974889a05/builtin/receive-pack.c (L1380)
where packet_read_line chomps newlines:
7974889a05/pkt-line.c (L202)
[2] 7974889a05/send-pack.c (L470)
Change-Id: I4bca6342a7482a53c9a5815a94b3c181a479d04b
The new submodule layout where GITDIR of a submodule is located at
<parent-repo-GITDIR>/modules/<submodule-path> was only used during
clone. Teach SubmoduleAddCommand to use the new layout.
Bug: 469666
Change-Id: Ie97dc0607b71499560444616f362bccee9cce515
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* changes:
Allow setting detail message and cause when constructing most exceptions
Use message from ServiceNotAuthorizedException, ServiceNotEnabledException
dumb HTTP: Clarify AsIsFilter by introducing req and res locals
Clarify description of ServiceNotAuthorizedException
Move ObjectCountCallback and WriteAbortedException to package
org.eclipse.jgit.transport, so that they'll become public API.
Change-Id: I95e3cfaa49f3f7371e794d5c253cf6981f87cae0
Signed-off-by: Yuxuan 'fishy' Wang <fishywang@google.com>
This reverts commit 96eb3ee397, which
broke Gerrit tests that set a config value to 'null', serialize the
result, deserialize, and expect 'null' from Config.getString[1].
The intent of that commit was to make it possible to distinguish between
an absent and an empty config value, which we'll have to do with a new
method.
Revert the behavior change. Keep the tests from 428cb23f2de8, since
they test the behavior more precisely than the old tests did.
[1] https://gerrit-review.googlesource.com/68452
Change-Id: Ie8042f380ea0e34e3203e1991aa0feb2e6e44641
Signed-off-by: Jonathan Nieder <jrn@google.com>
Added callback in PackWriter and BundleWriter for the caller to get the
count of objects to write, and a chance to abort the write operation.
Change-Id: I1baeedcc6946b1093652de4a707fe597a577e526
Signed-off-by: Yuxuan 'fishy' Wang <fishywang@google.com>
C git 2.5 supports setting the equivalent of
RequestPolicy.REACHABLE_COMMIT with uploadpack.allowreachablesha1inwant.
Parse this into TransportConfig and use it from UploadPack. An explicitly
set RequestPolicy overrides the config, and the policy may still be
upgraded on a unidirectional connection to avoid races.
Change-Id: Id39771a6e42d8082099acde11249306828a053c0
Signed-off-by: Fredrik Medley <fredrik.medley@gmail.com>
Change-Id: I351cee0ba2e77e3360846ac0c5368da3a322725c
Reported-by: Markus Keller <markus_keller@ch.ibm.com>
Signed-off-by: Jonathan Nieder <jrn@google.com>
exactRef(ref1, ref2, ref3) requests multiple specific refs in a single
lookup, which may be faster in some backends than looking them up one by
one.
firstExactRef generalizes getRef by finding the first existing ref from
the list of refs named. Its main purpose is for the default
implementation of getRef (finding the first existing ref in a search
path). Hopefully it can be useful for other operations that look for
refs in a search path (e.g., git log --notes=<name>), too.
Change-Id: I5c6fcf1d3920f6968b8b97f3d4c3a267258c4b86
Signed-off-by: Jonathan Nieder <jrn@google.com>
Unlike getRef(name), the new exactRef method does not walk the search
path. This should produce a less confusing result than getRef when the
exact ref name is known: it will not try to resolve refs/foo/bar to
refs/heads/refs/foo/bar even when refs/foo/bar does not exist.
It can be faster than both getRefs(ALL).get(name) and getRef(name)
because it only needs to examine a single ref.
A follow-up change will introduce a findRef synonym to getRef and
deprecate getRef to make the choice a caller is making more obvious
(exactRef or findRef, with the same semantics as getRefs(ALL).get and
getRefs(ALL).findRef).
Change-Id: If1bd09bcfc9919e7976a4d77f13184ea58dcda52
Signed-off-by: Jonathan Nieder <jrn@google.com>
I am developing an offline pack verification feature based on
PackParser. The birthday collision check is a prohibitive obstacle
to performance at scale because it interacts with the repository
to perform collision checks. This CL restores the checkObjectCollisions
flag that was removed in 9638e0aa87,
while changing the flag getter and setter to protected from public as a
precaution against misuse.
Change-Id: I363cd0c9de57c5e8659cdfe2d51b17823f4fe793
Signed-off-by: David Pletcher <dpletcher@google.com>
This is a perfectly valid construction according to C git:
$ echo -en '[a]\nx =' > foo.config
$ git config -f foo.config a.x; echo $?
0
Change-Id: Icfcf8304adb43c79e2b8b998f8d651b2a94f6acb
The C git API and command line tools distinguish between a key having
the empty string as a value and no key being present in the config
file:
$ echo -e '[a]\nx =' > foo.config
$ git config -f foo.config a.x; echo $?
0
$ git config -f foo.config a.y; echo $?
1
Make JGit make the same distinction. This is in line with the current
Javadoc of getString, which claims to return "a String value from the
config, null if not found". It is more reasonable to interpret "x ="
in the above example as "found" rather than "missing".
We need to maintain the special handling of a key name with no "="
resolving to a boolean true, but "=" with an empty string is still not
a valid boolean.
Change-Id: If0dbb7470c524259de0b167148db87f81be2d04a
Return -1 from PackWriter.Statistics.getBitmapIndexMises() when no
bitmap indices were found, to differentiate it from the case where
the bitmap indices contained all of the want/have commits.
Change-Id: I78d4600b462c19f62b347217a0b2c19eaaf3a14b
Signed-off-by: Terry Parker <tparker@google.com>
In particular, this means a RepositoryResolver, UploadPackFactory, or
ReceivePackFactory can set a detail message for
ServiceNotAuthorizedException or ServiceNotEnabledException with
information for the client about why access is not allowed.
Change-Id: I38e1798e1e9d09b5e75cefacd9d85f25729235a9
Signed-off-by: Jonathan Nieder <jrn@google.com>
This exception's detail message states
Service not permitted
and according to the Javadoc it indicates that the current user does not
have access to the service. In practice, though, callers handle this
exception by presenting a '401 Unauthorized' response to the client,
meaning that the user is unauthenticated and should authenticate.
Clarify the documentation and detail message to match the practice.
The exception message is not used anywhere except logs. No
client-visible effect intended.
Change-Id: I2c6be9cb74af932f0dcb121a381a64f2ad876766
Signed-off-by: Jonathan Nieder <jrn@google.com>
When CommitCommand.setOnly(path) is used a temporary index has to be
created containing only modifications for the specified pathes. The
process to fill this temporary index was broken because filling the
index was stopped when we reached the first untracked file. Instead the
process to fill the temporary index should continue until we processed
all pathes.
Bug: 451465
Change-Id: I22af50d70bd3b81e7c056358724956122b0d158d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
- throw an API exception instead of an internal exception to allow
applications to handle this problem
- improve error message to give hints about possible root causes
Bug: 464660
Change-Id: Ib7d18bb2eeeac0fc218daea375b290ea5034bda1
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* changes:
Silence unused object warning in MyersDiff
Silence resource leak warnings where caller is responsible to close
Fix potential null pointer access in IndexDiffFilter
ObjectReader release method was replaced by close method but
WindowCursor was still implementing release method.
To prevent the same mistake again, make ObjectReader close method
abstract to force sub classes to implement it.
Change-Id: I50d0d1d19a26e306fd0dba77b246a95a44fd6584
Signed-off-by: Hugo Arès <hugo.ares@ericsson.com>
Early JGit code used comments to inform the Eclipse formatter about
where to break lines and used final in the hope of making code faster.
The ArchiveCommand command implementation imitated that style.
Nowadays the project relies less on the Eclipse formatter and relies
more on Java having sane performance with local variables that are not
explicitly marked 'final'. Removing the unnecessary empty comments and
'final' qualifiers makes this code more readable and more consistent
with recent JGit code.
Change-Id: I7a181432eda7e18bd32cf110d89c0efbe490c4f1
Signed-off-by: Jonathan Nieder <jrn@google.com>
Whether the output stream specified with setOutputStream() is closed by
ArchiveCommand.call() is murky and inconsistent:
- on success, it is closed
- if an exception is encountered when writing the archive, it is closed
- if an exception is encountered when calling createArchiveStream to
open the archive, we forget to close it
Close the output stream consistently to avoid leaks.
Now that the inner try-with-resources doesn't have its own finally
block, this allows us to merge the two try blocks.
It would be even better to never close the output stream. That will
involve more API changes to avoid silently breaking callers, so it is
deferred to a later change.
Change-Id: I0185bdaa60ecee4a541eab5d8ff6c9c4dbe40bf1
Signed-off-by: Jonathan Nieder <jrn@google.com>
When during a PushOperation the server hits an exception different from
UnpackException the JGit server behaved wrong. That kind of exceptions
are handled so late that the connection is already released and the
information whether to talk sideband to the client is lost. In detail:
ReceivePack.receive() will call release() and that will reset the
capabilities. But later on the stack in ReceivePackServlet.doPost() it
is tried to send a response to client now with reset capabilities (no
sideband!).
Change-Id: I0a609acc6152ab43b47a93d712deb65bb1105f75
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
JGits PushCommand and BasePackPushConnection were throwing generic
TransportExceptions when the pushed pack-file was rejected by the server
since it was too big. Let JGit better interprete the server's response
to detect this situation and throw a more specific exception.
This detection works by parsing the status line sent by the server. This
change only recognizes the response sent by a JGit based server. All
other servers which report such problems in a different way still lead
to a generic TransportExceptions.
Change-Id: Ic075764ea152939ce72c446252464620dd54edea
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The primary goal is to improve exception readability. Since this is a
standalone thread, just logging the stack trace of the caught
exception is not very useful:
java.io.IOException: Stream closed
at java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:162)
at java.io.BufferedInputStream.read(BufferedInputStream.java:258)
at org.eclipse.jgit.util.FS$2.run(FS.java:451)
Providing a named class eliminates the "FS$2", and including the
command name provides a little more context in the error message.
A future improvement might include the stack trace that created the
GobblerThread as well.
Change-Id: Ibf16d15b47a85b6f41844a177e398c2fc94f27b0
RevWalks to find commits that are not in bitmap indices are expensive.
Track the count of commits that are enumerated via RevWalks as "bitmap
index misses" in the PackWriter.Statistics class.
Change-Id: Ie0135a0a0aeba2dfb6df78839d545006629f16cb
Signed-off-by: Terry Parker <tparker@google.com>
The SimilarityIndex class implements the useful capability of scoring
the similarity between two files. That capability is required for a
feature that's being developed in another package, to detect files
derived from a set of potential sources.
This CL adds a public factory method to create a SimilarityIndex from
an ObjectLoader. It grants public access to the SimilarityIndex class,
the score method, an inner exception class and a special marker
instance of that exception class.
Change-Id: I3f72670da643be3bb8e261c5af5e9664bcd0401b
Signed-off-by: David Pletcher <dpletcher@google.com>
If the thread reading a pack file is interrupted don't invalidate that
pack file.
This could happen when Gerrit invoked JGit for computing a diff in one
thread and waited for the call to finish from another thread, with a
timeout. When the timeout was reached the "diff" thread was interrupted.
If it happened to be in an IO operation, reading a pack file, an
InterruptedIOException was thrown and the pack file was marked as
invalid and removed from the pack list.
Invalidating the pack in that case could cause the project disappearing in
Gerrit as discussed in [1] and [2].
[1] https://groups.google.com/forum/#!topic/repo-discuss/CYYoHfDxCfA
[2] https://groups.google.com/forum/#!topic/repo-discuss/ZeGWPyyJlrM
Change-Id: I2eb1f98370936b5be541d96d70c3973cbfc39238
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
Now that d7a4473 removed the gitprefix property, we did not have a way to
specify the path to the Git system config file in case
discoverGitSystemConfig() fails. Fix that by introducing a member variable
that caches the result of discoverGitSystemConfig() as well as a setter
method to overwrite the content of that variable.
Change-Id: Icd965bffbe2f11b18c9505ee2ddd2afad5b64d70
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Change-Id: I31e788ee20ac3e8439559d9060d39e9792f6dc7d
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Commit d3348e introduced few errors in Eclipse.
This commit cleans up the new API:
- fixes API error in RepoCommand after moving IncludedFileReader type
- fixes unused imports in RepoCommand & RepoCommandTest
- fix javadoc errors in ManifestParser & RepoProject
- makes three (implicitly final) fields in ManifestParser final.
Change-Id: I4185f451d97039d155391f62815bb9d3afe39fa6
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
The repo xml manifest parser used in RepoCommand could also be useful for
others, so refactor to make it public.
Also this breaks backward compatibility slightly.
Change-Id: I5001bd2fe77541109fe32dbe2597a065e6ad585e
Signed-off-by: Yuxuan 'fishy' Wang <fishywang@google.com>
The only purpose of the gitprefix logic was to determine the path to the
system-wide config file. This is now done by discoverGitSystemConfig()
independent of the gitprefix, so get rid of this unused code.
Change-Id: Iaa88df9bd066dc1ed4067c18618af809e49876b3
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Change-Id: I969e26a5ab5f8ca3ab29024f405c1e34afdba493
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Change-Id: I4db7763826e4ada92074317d4d1c9a32299f3af8
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Change-Id: I700540eec06efb24eeb09bfcb40420820c32d156
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Change-Id: I67ec732ea2e5345a6946783f0c5ef60c07ce254e
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
- use try-with-resource where possible
- replace use of deprecated release() by close()
Change-Id: I0f139c3535679087b7fa09649166bca514750b81
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
git-core has supported this for a long time; allowing clients to
avoid progress messages from the server if they are dumping to a
pipe instead of a tty.
Avoid the two progress monitors going on side-band and expose
isQuiet() method to allow hooks to also reduce their output if
this is sensible for them.
Change-Id: I1df7e38d16765446b441366500b017a90b8ff958
In 77030a5e, AutoClosable was implemented on classes that use release().
This caused a resource leak because the ObjectReader.close method was
not calling the now deprecated release method, which is the method that
sub classes implements to release resources.
Change-Id: I247651ec8fd7ca9941d256ca46d14cc43cc35c6e
Signed-off-by: Hugo Arès <hugo.ares@ericsson.com>
Although the stable-4.0 branch already exists, 4.0 development is
still happening on master until IP logs are sent for review, which
will happen at the end of May.
Change-Id: I863ba85c6303f8ef2eb13bca5e2d30e5d3c58b29
Signed-off-by: Jonathan Nieder <jrn@google.com>
While trying to decide between "which matches every object" and "as it
matches every object", I became distracted and wrote both.
Change-Id: I867ce29664e661a81a9d441e59ffd0b72270dd98
Signed-off-by: Jonathan Nieder <jrn@google.com>
This will make it possible to declare a collection of objects as
ineligible for the walk en masse, for example if they are known to be
uninteresting via a bitmap.
Change-Id: I637008b25bf9fb57df60ebb2133a70214930546a
Signed-off-by: Jonathan Nieder <jrn@google.com>
The Java GC doesn't always clear these before running out of memory
and failing allocations. In practice OpenJDK 7 is leaving these live,
removing any advantage of the SoftReference to attempt to shed memory
when the GC is unable to continue allocating.
Instead follow the pattern of the DfsBlockCache and use hard refs
to the object data. Require applications to configure the cache
size more accurately given expected memory usage.
Change-Id: I87586b3e71b1cba0308a6a278d42e971be4bccd3
The LRU chain management code was broken leading to situations where
the chain was incomplete. This prevented the cache from removing
items when it exceeded its memory target, causing a leak.
One case was repeated hit on the head of the chain. moveToHead(e)
was invoked linking the head back to itself in a cycle orphaning
the rest of the table.
Add some unit tests to cover this and a few other paths.
Change-Id: Ib27486eaa1b1d2bf1c745a56d0a5832bfb029322
As Chris pointed out change I822721c76c64e614f87a080ced2457941f53adcd
slowed down merge since ANY_DIFF filter is much less efficient than the
manual detection of diffs done in ResolveMerger.processEntry() since it
avoids unnecessary filesystem calls using the git index. Hence only set
the ANY_DIFF filter on bare repositories which don't have a working tree
to scan.
To test performance I used the setup described in Chris' comment on
change I822721c76c64e614f87a080ced2457941f53adcd and modified
ResolveMerger.mergeTrees() to not add the working tree in order to
simulate merging in a bare repository.
At least on Mac I couldn't detect a speedup, with and without the
ANY_DIFF filter merge test takes an average 0.67sec.
Change-Id: I17b3a06f369cee009490f54ad1a2deb6c145c7cf
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Avoid always calling `sh -c umask` on startup, instead deferring
the invocation until the first time a working tree file needs to
use the execute bit. This allows servers using bare repos to avoid
a costly fork+exec for a value that is never used.
Store the umask as an int instead of two Boolean. This is slightly
smaller memory (one int vs. two references) and makes it easier for
an application to force setting the umask to a value that overrides
whatever the shell told JGit.
Simplify the code to bail by returning early when canExecute is
false, which is the common case for working tree files.
Change-Id: Ie713647615bc5bdf5d71b731a6748c28ea21c900
Applications that use a commit message once and do not
need it again can free the body to save memory. Expose
the disposeBody() methods to support this and use it in
pgm.Log which only visits each commit once.
Change-Id: I4142a0749c24f15386ee7fb119934a0432234de3
This was added a very long time ago to support the failed
DHT storage implementation. Since then no storage system
was able to make use of this API, but it pollutes internals
of the walkers.
Kill the API on ObjectReader and drop the invocations from
the walker code.
Change-Id: I36608afdac13a6c3084d7c7e0af5e0cb22900332
Previously using an ObjectWalk meant uninteresting commits may keep
their commit message buffers in memory just in case they were found to
be on the boundary and were output as UNINTERESTING for the caller.
This was incorrect inside StartGenerator. ObjectWalk hides these
internal UNINTERESTING cases from its caller unless RevSort.BOUNDARY
was explicitly set, and its false by default. Callers never see one
of these saved uninteresting commits.
Change the test to allow early dispose unless the application has
explicitly asked for RevSort.BOUNDARY. This allows uninteresting
commit buffers to be discarded and garbage collected in ObjectWalks
when the caller will never be given the RevCommit.
Change-Id: Ic1419cc1d9ee95f4d09386dd0730d54c12dcc157
Despite being the primary author of RevWalk and ObjectWalk I still
fail to remember to setRetainBody(false) in application code using
an ObjectWalk to examine the graph.
Document the default for RevWalk is setRetainBody(true), where the
application usually wants the commit bodies to display or inspect.
Change the default for ObjectWalk to setRetainBody(false), as nearly
all callers want only the graph shape and do not need the larger text
inside a commit body. This allows some code in JGit to be simplified.
Change-Id: I367e42209e805bd5e1f41b4072aeb2fa98ec9d99
That more or less defeats the purpose of using a StringBuilder.
Change-Id: I519f7bf1c9b6670e63c3714210f834ee845dc69f
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Change-Id: I3145f74ecee9f5b368e7f4b9fd7cb906f407eff5
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
If UploadPack or ReceivePack has an exception record an identifier
associated with the repository as part of the log message. This can
help the HTTP admin track down the offending repository and take
action to repair the root cause.
Change-Id: I58f22b33cdb40994f044a26fba9fe965b45be51d
When DirCacheTree.contains() is called and 'aOff' is greater than 'aLen'
an ArrayIndexOutOfBoundsException was thrown. This fix makes
DirCacheTree.contains() more robust and allows parsing such index files
without throwing AIOOB.
I couldn't create a test case leading to this situation but I have seen
such situations while inspecting Bug: 465393. It seems that such
situations are created on Windows when there are invalid pathes in the
index. There may be a not yet known bug leading to such situations in
combination with invalid pathes.
Bug: 465393
Change-Id: I6535d924a22cba9a05df0ccd7e6dc2c9ddc42375
Since git-core ff5effd (v1.7.12.1) the native wire protocol transmits
the server and client implementation and version strings using
capability "agent=git/1.7.12.1" or similar.
Support this in JGit and hang the implementation data off UploadPack
and ReceivePack. On HTTP transports default to the User-Agent HTTP
header until the client overrides this with the optional capability
string in the first line.
Extract the user agent string into a UserAgent class under transport
where it can be specified to a different value if the application's
build process has broken the Implementation-Version header in the
JGit package.
Change-Id: Icfc6524d84a787386d1786310b421b2f92ae9e65
A larger than expected number of real-world repositories found on
the Internet contain invalid author, committer and tagger lines
in their history. Many of these seem to be caused by users misusing
the user.name and user.email fields, e.g.:
[user]
name = Au Thor <author@example.com>
email = author@example.com
that some version of Git (or a reimplementation thereof) copied
directly into the object header. These headers are not valid and
are rejected by a strict fsck, making it impossible to transfer
the repository with JGit/EGit.
Another form is an invalid committer line with double negative for
the time zone, e.g.
committer Au Thor <a@b> 1288373970 --700
The real world is messy. :(
Allow callers and users to weaken the fsck settings to accept these
sorts of breakages if they really want to work on a repo that has
broken history. Most routines will still function fine, however
commit timestamp sorting in RevWalk may become confused by a corrupt
committer line and sort commits out of order. This is mostly fine if
the corrupted chain is shorter than the slop window.
Change-Id: I6d529542c765c131de590f4f7ef8e7c1c8cb9db9
This error happens on nfs file system when you try to read a file that
was deleted or replaced.
When the error happens because the file was deleted, removing it from
the list is the proper way to handle the error, same use case as
FileNotFoundException. When the error happens because the file was
replaced, removing the file from the list will cause the file to be
re-read so it will get the latest version of the file.
Bug: 462868
Change-Id: I368af61a6cf73706601a3e4df4ef24f0aa0465c5
Signed-off-by: Hugo Arès <hugo.ares@ericsson.com>
Pack not found and pack corrupted/invalid are handled by the code (pack
is removed from the list) so logging an error and the stacktrace is
misleading because it implies that there is an action to take to fix the
error.
Lower the log level to warn and remove the stacktrace for those 2 types
of errors and keep the error log statement for any other.
Change-Id: I2400fe5fec07ac6d6c244b852cce615663774e6e
Signed-off-by: Hugo Arès <hugo.ares@ericsson.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-3.7:
Prepare 3.7.2-SNAPSHOT builds
JGit v3.7.1.201504261725-r
Revert "Let ObjectWalk.markUninteresting also mark the root tree as"
Change-Id: If1b62ff695e063d797c3d13c43e488ca56f29cbe
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The Iff2de881 tried to fix missing tree ..." but introduced severe
performance degradation (>10x in some cases) when acting as server
(git push) and as client (replication). IOW cure is worse than the
disease.
This reverts commit c4797fe986.
Change-Id: I4e6056eb352d51277867f857a0cab380eca153ac
Signed-off-by: David Ostrovsky <david@ostrovsky.org>
Cached packs are only used when writing over the network or to
a bundle file and reuse validation is always disabled in these
two contexts. The client/consumer of the stream will be SHA-1
checksumming every object.
Reuse validation is most critical during local GC to avoid silently
ignoring corruption by stopping as soon as a problem is found and
leaving everything alone for the end-user to debug and salvage.
Cached packs are not supported during local GC as the bitmap rebuild
logic does not support including a cached pack in the result.
Strip out the validation and force PackWriter to always disable the
cached pack feature if reuseValidation is enabled.
Change-Id: If0d7baf2ae1bf1f7e71bf773151302c9f7887039
Sensible suggestion from Terry Parker as a late comment on
commit f2efcdc6f769d59722b17e9274932d585035cfb6.
Change-Id: I225775bfb6d3d91ae066ff00f9d80a9c02a422c2
This hint allows an underlying implementation to read more bytes when
possible and buffer them locally for future read calls to consume.
Change-Id: Ia986a1bb8640eecb91cfbd515c61fa1ff1574a6f
When a large pack (> 30% of the block cache) is being reused by
copying it pollutes the block cache with noise by storing blocks
that are never referenced again.
Avoid this by streaming the file directly from its channel onto
the output stream.
Change-Id: I2e53de27f3dcfb93de68b1fad45f75ab23e79fe7
The clone or fetch depth is a valuable bit of information
for access logging. Create a public getter to faciliate access.
A precondition check prevents unintentional misuse when the
data isn't valid yet.
Change-Id: I4603d5fd3bd4a767e3e2419b0f2da3664cfbd7f8
Signed-off-by: David Pletcher <dpletcher@google.com>
JGit hit IllegalArgumentException: invalid content length
when pushing large packs to S3.
Bug: 463015
Change-Id: Iddf50d90c7e3ccb15b9ff71233338c6b204b3648
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This was deprecated and should only be used by DirCacheCheckout and
friends. Other classes should use SystemReader.checkPath() instead.
Change-Id: I37cf753b1f081602dee9f0f47979eff39d735f92
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
- close RevWalk allocated in scan()
- replace use of deprecated ObjectReader.release() method
Change-Id: I41b2b10a1a44270a6ceaa1741e996c0921439852
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Replaces use of deprecated release() methods.
Change-Id: I0211bcf0a76a2fccc2c85fa74778e20c256984ba
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
- replaces use of deprecated ObjectInserter.release()
- auto-close TreeWalk
Change-Id: I540ee711b8c3430a71fdff07add506b7d9c039dc
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Most callers/users of TemporaryBuffer are sizing the in-memory
portion large enough that most outputs fit into RAM. With this
assumption they don't pay close attention to the size of IOs
being written, as it "should" just be a copy from one byte array
to another.
Overflow sets up a local file handle, which is costly to write to
for small IO units. Wrap the local file in a BufferedOutputStream
to combine small writes together. Larger writes can still bypass the
buffer as BOS automatically avoids copying for larger writes.
Change-Id: I09f4136dd65c48830cfda86d9101bc647581018a
When reading back from an overflowed TemporaryBuffer the InputStream
must be closed to close the FileInputStream that is reading from
the backing file.
Change-Id: Id83d8f16f5b2c2618a9f841ec3508508455a6ae1
By writing the temporary overflow merge result to $GIT_DIR JGit
can ensure the same filesystem permissions apply to protect the
file contents.
If no directory is available from the repository (e.g. DfsRepository)
null will be passed and the system temporary directory will be used
instead.
Change-Id: I95532aa092676d18f1dc1e3fdbe6dcb1f91b782e
Formatting merge conflicts one byte at a time is going to be very
slow when the final OutputStream is a FileOutputStream and the JVM
is making system calls for each byte output.
When outputting a range of bytes from a byte[] the bol (beginning
of line) value only depends on the value of the last byte written.
Other bytes in the array can be passed directly to the lower stream
for more efficient output.
Change-Id: I3415f9a390ee215210a17bb5bf39164d197e1348
This should considerably speed up the treewalk on larger repositories.
Found by discussing new EGit API to support model merge in change
eda23bb556d342f421f03b93c7faa160998598aa
Change-Id: I822721c76c64e614f87a080ced2457941f53adcd
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
cc: Laurent Delaigue <laurent.delaigue@obeo.fr>
This unintentionally was changed from severity debug to error which is
causing unexpected log entries.
Bug: 463349
Change-Id: I4b6d42a1420652ab6824e237bd231ba86896acbf
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Bug: 390833
Change-Id: I29f7b79b241929877c93ac485c677487a91bb77b
Signed-off-by: André de Oliveira <andre.oliveira@liferay.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
If a non interactive rebase is launched, stopping after a conflict
should set the repository state to RepositoryState.REBASING_MERGE
instead of RepositoryState.REBASING_INTERACTIVE.
Bug: 452623
Change-Id: Ie885aab6d71dabd158a718af0d14fff643c9b850
Also-by: Arthur Daussy <arthur.daussy@obeo.fr>
Signed-off-by: Laurent Delaigue <laurent.delaigue@obeo.fr>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
When RecursiveMerger found that there are multiple base-commits for the
commits to be merged it tries to temporarily merge the base commits. But
if these base commits have no common predecessor there was a bug in JGit
leading to a NPE. This commit fixes this by enforcing that an empty tree
is used as base when merging two unrelated base commits.
This logic was already there when merging two commits which have no
common predecessor (ThreeWayMerger.mergeBase()). But the code which was
computing a new temporary base commit in case of criss-cross merges
didn't take care to pick an empty tree when no common predecessor can be
found.
Bug: 462671
Change-Id: Ibd96302f5f81383f36d3b1e3edcbf5822147b1a4
As we moved minimum Java version to 7 we don't need a separate bundle
and feature for JGit features depending on Java 7 anymore.
Change-Id: Ib5da61b0886ddbdea65298f1e8c6d65c9879ced1
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This reverts commit 6bc48cdc62.
Until git v1.7.10.2~29^2~1 (builtin/merge.c: reduce parents early,
2012-04-17), C git merge would make merge commits with duplicate parents
when asked to with a series of commands like the following:
git checkout origin/master
git merge --no-ff origin/master
Nowadays "git merge" removes redundant parents more aggressively
(whenever one parent is an ancestor of another and not just when
duplicates exist) but merges with duplicate parents are still permitted
and can be created with git fast-import or git commit-tree and history
viewers need to be able to cope with them.
CommitBuilder is an interface analagous to commit-tree, so it should
allow duplicate parents. (That said, an option to automatically remove
redundant parents would be useful.)
Reported-by: Dave Borowitz <dborowitz@google.com>
Change-Id: Ia682238397eb1de8541802210fa875fdd50f62f0
Signed-off-by: Jonathan Nieder <jrn@google.com>
The block pointer list may have been relatively large, so no need to
make more garbage. Instead, just clear the list and null out all the
elements.
Another possible motivation: a caller may have provided an inaccurate
estimated size, so the list might have been resized several times. If
the list is reused later for a similarly underestimated workload, this
fix will prevent additional resizing on subsequent usages.
Change-Id: I511675035dcff1117381a46c294cc11aded10893
Callers may wish to use TemporaryBuffer as an essentially unbounded
buffer by passing Integer.MAX_VALUE as the size. (This makes it
behave like ByteArrayOutputStream, only without requiring contiguous
memory.) Unfortunately, it was always allocating an array in the
backing block pointer list to hold enough blocks to MAX_VALUE--all
262,016 of them. It wasn't allocating the blocks themselves, but this
array was still extremely wasteful, using about 2MiB of memory on a
64-bit system.
Tweak the interface to specify an estimated size, and only allocate
the block pointer list enough entries to hold that size. It's an
ArrayList, so if that estimate was wrong, it'll grow. We assume the
cost of finding enough contiguous memory to grow that array is
acceptable.
While we're in there, fix an off-by-one error: due to integer division
we were undercounting the number of blocks needed to store n bytes of
data as (n / SZ).
Change-Id: I794eca3ac4472bcc605b3641e177922aca92b9c0
Since 27ae8bc65 Git has implemented AutoCloseable, which means Eclipse
may warn if close() is never called on a Git instance. For example,
the following would result in a resource warning:
Repository repo = openRepository(foo);
Git git = new Git(repo);
try {
git.someCommand().call();
} finally {
repo.close();
}
(The same warning would occur if repo were created in a try-with-
resources block.)
The "obvious" fix is to open git in a try-with-resources block:
try (Repository repo = openRepository(foo);
Git git = new Git(repo)) {
git.someCommand().call();
}
Unfortunately, this construction was subtly broken: it would call both
git.close() and repo.close(), but git.close() would call repo.close()
again. Depending on the repository implementation, this might or might
not be ok. If it's not ok, it might not immediately cause an error, if
the reference count of repo was >2 at the time of closing.
Of course, explicitly calling git.close() followed by repo.close() in
two finally blocks has had the same double-closing problem since
forever. But the problem became worse when Git started implementing
AutoCloseable, because now Eclipse is _actively encouraging_
developers to change working code into broken code.
To work around this, keep track in Git's constructor of whether the
repository was passed in or opened at construction time, and only
close the repository if it was opened by Git.
Note that in the original example, there was not _actually_ a resource
leak, since repo was closed exactly once; git did not _need_ to be
closed in this case. But at least fixing this false-positive warning
no longer introduces a real bug.
Change-Id: Ie927a26ce3ae2bf8c3ef5cb963a60847067db95a
For some specific file, MyersDiff goes into an infinite loop[1]. Since
this problem is hard to reproduce and possibly harder to fix, this
change makes the MyersDiff interruptible so the diff can be aborted at
least when such infinite loop happens.
[1]https://bugs.eclipse.org/bugs/show_bug.cgi?id=444623
Change-Id: I6e006ccb122d1e68c9846a24d5399d94776c2858
Signed-off-by: Hugo Arès <hugo.ares@ericsson.com>
When setting the parents of a commit with setParentIds() or
addParentId() it should be checked that we don't have duplicate parents.
An IllegalArgumentException should be thrown in this case.
Change-Id: I9fa9f31149b7732071b304bca232f037146de454
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
This flushed out a number of bugs in the way DfsRefUpdate, or at least
the InMemoryRepository implementation, processes symrefs. These have
been fixed, to an extent, in InMemoryRepository, but other
implementations may still suffer from these bugs.
Change-Id: Ifd12115a0060b9ff45a88d305b72f91ca0472f9a
The TreeWalk(ObjectReader) constructor is explicitly to handle the case
where the caller is responsible for opening and closing the reader.
The reader should only be closed when it was created in the
TreeWalk(Repository) constructor.
Change-Id: I627681be80d69ea549f953255a64c7b3b68bcec9
The RevWalk(ObjectReader) constructor is explicitly to handle the case
where the caller is responsible for opening and closing the reader.
The reader should only be closed when it was created in the
RevWalk(Repository) constructor.
Change-Id: Ic0d595dc8d10de79e87549546c6c5ea2dc617e9b
PackFile is held by the block cache and cannot be auto closed in a
try-with-resources statement. Remove the interface as JGit does
explicit management of the instances.
ObjectDatabase and RefDatabase are internal details of Repository
and are managed with the Repository. Marking them AutoCloseable
provides no value to the library or an application using the API.
Change-Id: Ibee19eadd66233e6666b601583daa1834a7778f1
Reference equality (!= or ==) cannot be used to check for
String equality. String objects are not necessarily interned
to the same instance.
Use .isEmpty() since the function only cares about an empty
string and does not need to test a specific string value.
Change-Id: If530cb59666a8196d57d2348c893706a517ea541
The %x format specifier is not valid for a byte array.
This patch fixes a bug that would cause an IllegalFormatConversionException.
Change-Id: I025975eca7b2f10bbafa39f5519f8668e6536541
Signed-off-by: David Pletcher <dpletcher@google.com>
Native git supports "git describe --long". This will enforce returning a
long description of a commit even if a tag is directly pointing to the
commit (in contrast to just returning the tag name as it is now). This
commit teaches JGits DescribeCommand and the describe command in the pgm
package to support "--long".
Bug: 460991
Change-Id: I65e179b79e89049c6deced3c71cb3ebb08ed0a8f
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The index provides access to a list of objects in a pack.
This will be helpful for repository integrity checking.
Change-Id: I435eeeb3fe1b1f5632d40528936416e97491d412
Signed-off-by: David Pletcher <dpletcher@google.com>
This hook uses the file .git/COMMIT_EDITMSG to receive and potentially
modify the commit message.
Change-Id: Ibe2faadfb5d3932a5a3da2252d8156c4c04856c7
Signed-off-by: Laurent Delaigue <laurent.delaigue@obeo.fr>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Hooks are now obtained via a convenient API like git commands, and
callers don't have to check for their existence.
The pre-commit hook has been updated accordingly.
Change-Id: I3383ffb10e2f3b588d7367b9139b606ec7f62758
Signed-off-by: Laurent Delaigue <laurent.delaigue@obeo.fr>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This allows for testing arbitrary sets of push/fetch hooks (e.g.
PreReceiveHook) without depending on either an external protocol (e.g.
HTTP) or the local filesystem.
Change-Id: I4ba2fff9c8a484f990dea05e14b0772deddb7411
TransportLocal knows how to spin up a thread to allow two repositories
in the same process to communicate using the wire protocol. However,
it is still tied to local on-disk filesystems, and needs to be able to
fork processes if not using the default git-{upload,receive}-pack
implementation.
Extract out the connection classes so they can be used by other
transport implementations.
Change-Id: I5db59086740735508c2e70a597c2d1a89014b072
* stable-3.7:
Prepare 3.7.1-SNAPSHOT builds
JGit v3.7.0.201502260915-r
Read user.name and email from environment first
Provide more details in exceptions thrown when packfile is invalid
Change-Id: I427f861c6bc94da5e3e05dbbebbf0ad15719a323
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This was missed in change I249869cadb2d55aef016371b9311b8583591b9cf
Change-Id: I19c9d4c04b6aa92b9e04c192dee70775d6985b58
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-3.7:
Add log4j and slf4j-log4j bridge to jgit feature
Use slf4j to log instead of printing to System.err
Use Target Platform Definition DSL to generate target platforms
Change-Id: Ic8779868150c910fa55fd20348e35723e6add0f1
According to [1] user name and email are taken first from the
environment variables:
GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL
GIT_COMMITTER_NAME, GIT_COMMITTER_EMAIL
In case (some of) these environment variables are not set, the
information is taken from the git configuration.
JGit doesn not yet support the environment variables GIT_AUTHOR_DATE and
GIT_COMMITTER_DATE.
[1] https://www.kernel.org/pub/software/scm/git/docs/git-commit-tree.html#_commit_information
Bug: 460586
Change-Id: I3ba582b4ae13674cf319652b5b13ebcbb96dd8ec
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Push certificates ("git push --signed") have been part of
git-core since version 2.2.0 (released Nov 26 2014). We also
want to support that feature.
This is not complete and is lacking the actual functionality
to validate the signature for now.
Change-Id: I249869cadb2d55aef016371b9311b8583591b9cf
Signed-off-by: Stefan Beller <sbeller@google.com>
Current ArchiveCommand design doesn't allow to pass in options to
underlying stream implementations. To overcome this, client has to
implement custom format implementation (it cannot be derived from
the existing one, because the classes are marked as final), and set
the options using ThreadLocal, before the method
ArchiveOutputStream createArchiveOutputStream(OutputStream s)
is get called.
This change extends the ArchiveCommand.Format by allowing to pass
option map during creation of ArchiveOutputStream.
ArchiveCommand is extended correspondingly. That way client can
easily pass options to the underlying streams:
Map<String, Object> level = ImmutableMap.<String, Object> of(
"level", new Integer(9));
new ArchiveCommand(repo)
.setFormat("zip")
.setFormatOptions(level)
.setTree(tree)
.setPaths(paths)
.setPrefix(prefix)
.setOutputStream(sidebandOut)
.call();
Change-Id: I1d92a1e5249117487da39d19c7593e4b812ad97a
Signed-off-by: David Ostrovsky <david@ostrovsky.org>
Mention packfile path in exceptions thrown when we detect that a
packfile is invalid and make excplicit that corrupt packs are removed
from the pack list.
Change-Id: I454ada5f8e69307d3f34d1c1b8f3cb87607ddf35
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Implement AutoClosable and deprecate the old release() method to give
JGit consumers some time to adapt.
Bug: 428039
Change-Id: Id664a91dc5a8cf2ac401e7d87ce2e3b89e221458
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-3.7:
Add option --orphan for checkout
Prepare post 3.7.0.201502031740-rc1 builds
JGit v3.7.0.201502031740-rc1
Support for the pre-commit hook
Fix FileUtils.testRelativize_mixedCase which failed on Mac OS X
Add a hook test
Introduce hook support into the FS implementations
If a pack isn't found on disk remove it from pack list
Conflicts:
org.eclipse.jgit.java7.test/META-INF/MANIFEST.MF
Change-Id: I936acd24d47b911fa30ab29856094e1b2c6ac3db
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Introduce support for the pre-commit hook into JGit, along with the
--no-verify commit command option to bypass it when rebasing /
cherry-picking.
Change-Id: If86df98577fa56c5c03d783579c895a38bee9d18
Signed-off-by: Laurent Goubet <laurent.goubet@obeo.fr>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This introduces the background plumbing necessary to run git hooks from
JGit. This implementation will be OS-dependent as it aims to be
compatible with existing hooks, mostly written in Shell. It is
compatible with unix systems and windows as long as an Unix emulator
such as Cygwin is in its PATH.
Change-Id: I1f82a5205138fd8032614dd5b52aef14e02238ed
Signed-off-by: Laurent Goubet <laurent.goubet@obeo.fr>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
If accessing a pack throws FileNotFoundException the pack was deleted
and we need to remove it from the pack list. This can be caused e.g. by
git gc.
Change-Id: I5d10f87f364dadbbdbfb61b6b2cbdee9c7457f3d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
ObjectInserter recently learned to read back inserted objects before
they have been flushed. It is in general unsafe to create refs to such
objects, but it is now much more possible to do so, by passing "new
RevWalk(inserter.newReader())" into RefUpdate#execute(RevWalk).
We can't change the RefUpdate interface to remove execute(RevWalk);
nor would we necessarily want to, for performance reasons. And in any
case, RefUpdate#safeParse explicitly ignores MissingObjectExceptions.
But we can enforce object existence in InMemoryRepository, which will
allow callers using this class in their tests to ensure they are using
the RefDatabase correctly.
Change-Id: I5c696ba23bcd2a536a0512fa7f5b6130961905c5
In case the index contains wrong tree extensions don't throw a
ArrayIndexOutOfBounds exception but revalidate the tree extension.
It happened that the git index written by Git for Windows contained valid
(means entryCount>0) tree extensions for pathes which are not existing
in the index. Native git handles this inconsistency silently but JGit
was crashing with a ArrayIndexOutOfBounds exception. Teach JGit to
better recognize such cases and revalidate such extensions.
It's hard to write a test because JGit doesn't write such extensions. It
only reads, validates and makes use of them. But the bug tells how to
create such situations.
Bug: 457152
Change-Id: Id3ffd7dc7ae1c55674d88bf1b43953234fe0b68d
* changes:
Document that repo returned by SubmoduleAddCommand needs to be closed
Document that Git instance returned by CloneCommand needs to be closed
This way we can ensure that the same command instance can't be used
concurrently in multiple threads.
Bug: 458023
Change-Id: I4884a1ef2f609f9fb24dda4bd5819dffb9f174b6
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* origin/stable-3.6:
Prepare 3.6.3-SNAPSHOT builds
JGit v3.6.2.201501210735-r
Don't remove pack from pack list for problems which could be transient
Log reason for ignoring pack when IOException occurred
Change-Id: I61141b52839511d58e5a5b193bfde31e9f444a6c
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>