SpotBugs [1] is the spiritual successor of FindBugs, carrying on from
the point where it left off with support of its community.
This is a backport of [1] which originally did the replacement on the
master branch. This change updates to the current latest version, so
that we can get the benefit of its checks when pushing changes to the
stable branches.
Jonathan Nieder [Sun, 7 Oct 2018 21:55:52 +0000 (21:55 +0000)]
SubmoduleValidator: Permit missing path or url
A .gitmodules file can include a submodule without a path to configure
the URL for a submodule that is only present on other branches.
A .gitmodules file can include a submodule with no URL and no path to
reserve the name for a submodule that existed in earlier history but
is not available from any URL any more.
"git fsck" permits both of these cases. Permit them in JGit as well
(instead of throwing NullPointerException).
Change-Id: I3b442639ad79ea7a59227f96406a12e62d3573ae Reported-by: David Pursehouse <david.pursehouse@gmail.com> Signed-off-by: Jonathan Nieder <jrn@google.com>
The text "<tree, blob>" with angle brackets should not be used in javadoc
since it is interpreted as an HTML tag and then rejected since it's not a
valid HTML tag. Wrap the text in a @literal tag.
Also add a missing space.
Change-Id: Ide045e8c04a39a916f5b2e964e58c151e4555830 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Matthias Sohn [Fri, 5 Oct 2018 23:16:08 +0000 (01:16 +0200)]
Merge branch 'stable-4.8' into stable-4.9
* stable-4.8:
Prepare 4.7.6-SNAPSHOT builds
JGit v4.7.5.201810051826-r
BaseReceivePack: Validate incoming .gitmodules files
ObjectChecker: Report .gitmodules files found in the pack
SubmoduleAddCommand: Reject submodule URIs that look like cli options
Change-Id: Ia7a826399d8d5b8a0eb7169b40e98a6f5c207a4c Signed-off-by: Jonathan Nieder <jrn@google.com> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Matthias Sohn [Fri, 5 Oct 2018 23:03:20 +0000 (01:03 +0200)]
Merge branch 'stable-4.7' into stable-4.8
* stable-4.7:
Prepare 4.7.6-SNAPSHOT builds
JGit v4.7.5.201810051826-r
BaseReceivePack: Validate incoming .gitmodules files
ObjectChecker: Report .gitmodules files found in the pack
SubmoduleAddCommand: Reject submodule URIs that look like cli options
Change-Id: Id6fabec4d0b682a7e20a46e88cbc05432efca062 Signed-off-by: Jonathan Nieder <jrn@google.com> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The main concern are submodule urls starting with '-' that could pass as
options to an unguarded tool.
Pass through the parser the ids of blobs identified as .gitmodules
files in the ObjectChecker. Load the blobs and parse/validate them
in SubmoduleValidator.
Change-Id: Ia0cc32ce020d288f995bf7bc68041fda36be1963 Signed-off-by: Ivan Frade <ifrade@google.com> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Ivan Frade [Thu, 27 Sep 2018 20:05:13 +0000 (13:05 -0700)]
ObjectChecker: Report .gitmodules files found in the pack
In order to validate .gitmodules files, we first need to find them
in the incoming pack.
Do it in the ObjectChecker stage. Check in the tree objects if they
point to a .gitmodules file and report the tree id and the .gitmodules
blob id.
This can be used later to check if the file is in the root of the
project and if the contents are good.
While we're here, make isMacHFSGit more accurate by detecting variants
of filenames that vary in case.
[jn: tweaked NTFS and HFS+ checking; added more tests]
Change-Id: I70802e7d2c1374116149de4f89836b9498f39582 Signed-off-by: Ivan Frade <ifrade@google.com> Signed-off-by: Jonathan Nieder <jrn@google.com> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Ivan Frade [Mon, 24 Sep 2018 23:03:35 +0000 (16:03 -0700)]
SubmoduleAddCommand: Reject submodule URIs that look like cli options
In C git versions before 2.19.1, the submodule is fetched by running
"git clone <uri> <path>". A URI starting with "-" would be interpreted
as an option, causing security problems. See CVE-2018-17456.
Refuse to add submodules with URIs, names or paths starting with "-",
that could be confused with command line arguments.
[jn: backported to JGit 4.7.y, bringing portions of Masaya Suzuki's
dotdot check code in v5.1.0.201808281540-m3~57 (Add API to specify
the submodule name, 2018-07-12) along for the ride]
Change-Id: I2607c3acc480b75ab2b13386fe2cac435839f017 Signed-off-by: Ivan Frade <ifrade@google.com> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
David Ostrovsky [Tue, 25 Sep 2018 06:20:57 +0000 (08:20 +0200)]
ObjectDownloadListener#onWritePossible: Add comment on return statement
It is not obvious why this return statement is needed. Clarify with a
comment that otherwise endless loop may show up when recent versions
of Jetty are used.
Change-Id: I8e5d4de51869fb1179bf599bfb81bcd7d745874b Signed-off-by: David Ostrovsky <david@ostrovsky.org>
David Pursehouse [Tue, 18 Sep 2018 00:15:57 +0000 (09:15 +0900)]
Merge branch 'stable-4.8' into stable-4.9
* stable-4.8:
Fix ObjectUploadListener#close
Fix error handling in FileLfsServlet
ObjectDownloadListener#onWritePossible: Make code spec compatible
ObjectDownloadListener: Return from onWritePossible when data is written
Fix IOException when LockToken#close fails
Change-Id: Id8eb635094336567d9f3c28ec985cd5127d31632 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
David Pursehouse [Tue, 18 Sep 2018 00:15:02 +0000 (09:15 +0900)]
Merge branch 'stable-4.7' into stable-4.8
* stable-4.7:
Fix ObjectUploadListener#close
Fix error handling in FileLfsServlet
ObjectDownloadListener#onWritePossible: Make code spec compatible
ObjectDownloadListener: Return from onWritePossible when data is written
Fix IOException when LockToken#close fails
Change-Id: Iad9836811be034cf992ea25dad4409addba75115 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Matthias Sohn [Sun, 16 Sep 2018 22:35:33 +0000 (00:35 +0200)]
Fix error handling in FileLfsServlet
Check in #sendError method if the response was committed already.
If yes we cannot set response status or send an error message, last
resort is to close the outputstream.
If the response wasn't yet committed first reset the response before
using writer to send the error message to the client since mixing STREAM
and WRITE mode (mixing asynchronous and blocking I/O) is illegal in
servlet 3.1.
see the following bugs in the gerrit and jetty issue trackers
https://bugs.chromium.org/p/gerrit/issues/detail?id=9667
https://bugs.chromium.org/p/gerrit/issues/detail?id=9721
https://github.com/eclipse/jetty.project/issues/2911
Change-Id: Ie35563c2e0ac1c5e918185a746622589a880dc7f Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
David Ostrovsky [Sat, 15 Sep 2018 19:09:51 +0000 (21:09 +0200)]
ObjectDownloadListener#onWritePossible: Make code spec compatible
Current code violates the ServletOutputStream contract. For every
out.isReady() == true either write or close of that ServletOutputStream
should be called.
See also this issue upstream for more context: [1].
Change-Id: Ied575f3603a6be0d2dafc6c3329d685fc212c7a3 Signed-off-by: David Ostrovsky <david@ostrovsky.org> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
David Ostrovsky [Sat, 15 Sep 2018 19:09:51 +0000 (21:09 +0200)]
ObjectDownloadListener: Return from onWritePossible when data is written
When buffer was written not only call AsyncContext#complete() but also
return from the ObjectDownloadListener#onWritePossible(). This avoids
endless loop after upgrading from Jetty 9.3.x to 9.4.x lines.
In Jetty example implementation:[1] the return statemnt is also used:
// If we are at EOF then complete
if (len < 0)
{
async.complete();
return;
}
David Pursehouse [Wed, 12 Sep 2018 06:55:07 +0000 (15:55 +0900)]
Merge branch 'stable-4.8' into stable-4.9
* stable-4.8:
Fix NoSuchFileException during directory cleanup in RefDirectory
Externalize warning message in RefDirectory.delete()
Suppress warning for trying to delete non-empty directory
Change-Id: I5e6cc35f3673545e7ff857e6ed0bcd2c44e50316 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
David Pursehouse [Wed, 12 Sep 2018 05:05:46 +0000 (14:05 +0900)]
Merge branch 'stable-4.7' into stable-4.8
* stable-4.7:
Fix NoSuchFileException during directory cleanup in RefDirectory
Externalize warning message in RefDirectory.delete()
Suppress warning for trying to delete non-empty directory
Change-Id: I9ec6352b5ff57aa1a3380079dc9165890cc76d49 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Matthias Sohn [Thu, 23 Aug 2018 09:44:28 +0000 (11:44 +0200)]
Externalize warning message in RefDirectory.delete()
Change-Id: Icec16c01853a3f5ea016d454b3d48624498efcce Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
(cherry picked from commit 5e68fe245fb97f38620ea683dbeab724bf86da4c) Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Thomas Wolf [Sun, 19 Aug 2018 18:48:06 +0000 (20:48 +0200)]
Suppress warning for trying to delete non-empty directory
This is actually a fairly common occurrence; deleting the parent
directories can work only if the file deleted was the last one
in the directory.
Bug: 537872
Change-Id: I86d1d45e1e2631332025ff24af8dfd46c9725711 Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
(cherry picked from commit d9e767b431eae7978613cc8e0ade7467ec04376c) Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Matthias Sohn [Sun, 26 Aug 2018 17:44:29 +0000 (19:44 +0200)]
Fix atomic lock file creation on NFS
FS_POSIX.createNewFile(File) failed to properly implement atomic file
creation on NFS using the algorithm [1]:
- name of the hard link must be unique to prevent that two processes
using different NFS clients try to create the same link. This would
render nlink useless to detect if there was a race.
- the hard link must be retained for the lifetime of the file since we
don't know when the state of the involved NFS clients will be
synchronized. This depends on NFS configuration options.
To fix these issues we need to change the signature of createNewFile
which would break API. Hence deprecate the old method
FS.createNewFile(File) and add a new method createNewFileAtomic(File).
The new method returns a LockToken which needs to be retained by the
caller (LockFile) until all involved NFS clients synchronized their
state. Since we don't know when the NFS caches are synchronized we need
to retain the token until the corresponding file is no longer needed.
The LockToken must be closed after the LockFile using it has been
committed or unlocked. On Posix, if core.supportsAtomicCreateNewFile =
false this will delete the hard link which guarded the atomic creation
of the file. When acquiring the lock fails ensure that the hard link is
removed.
[1] https://www.time-travellers.org/shane/papers/NFS_considered_harmful.html
also see file creation flag O_EXCL in
http://man7.org/linux/man-pages/man2/open.2.html
Change-Id: I84fcb16143a5f877e9b08c6ee0ff8fa4ea68a90d Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Fix handling of option core.supportsAtomicCreateNewFile
When core.supportsAtomicCreateNewFile was set to false and the
repository was located on a filesystem which doesn't support the file
attribute "unix:nlink" then FS_POSIX#createNewFile may report an error
even if everything was ok. Modify FS_POSIX#createNewFile to silently
ignore this situation. An example of such a filesystem is sshfs where
reading "unix:nlink" always returns 1 (instead of throwing a exception).
Bug: 537969
Change-Id: I6deda7672fa7945efa8706ea1cd652272604ff19 Also-by: Thomas Wolf <thomas.wolf@paranor.ch>
GC: Avoid logging errors when deleting non-empty folders
I88304d34c and Ia555bce00 modified the way errors are handled when
trying to delete non-empty reference folders. Before, this error was
silently ignored as it was considered an expected output. Now, every
failed folder delete is logged which can be noisy.
Ignore the DirectoryNotEmptyException but log any other error avoiding
deletion of an eligible folder.
David Pursehouse [Fri, 31 Aug 2018 04:08:29 +0000 (13:08 +0900)]
Merge branch 'stable-4.8' into stable-4.9
* stable-4.8:
Bazel: Use hyphen instead of underscore in external repository names
Bazel: Format all build files with buildifier 0.15.0
ChangeIdUtilTest: Remove unused notestCommitDashV
Change-Id: I17436237cd66ca1c2800ad5ab0142f4a2bc07328 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
David Pursehouse [Fri, 31 Aug 2018 00:24:57 +0000 (09:24 +0900)]
Merge branch 'stable-4.7' into stable-4.8
* stable-4.7:
Bazel: Use hyphen instead of underscore in external repository names
Bazel: Format all build files with buildifier 0.15.0
ChangeIdUtilTest: Remove unused notestCommitDashV
Change-Id: I414ade902dc38b696c566dd604000e3d289f3973 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
David Pursehouse [Wed, 29 Aug 2018 23:48:41 +0000 (08:48 +0900)]
Bazel: Use hyphen instead of underscore in external repository names
Recent Bazel versions support the hyphen character in external
repository names. On the Gerrit project, the repository names
were harmonized to consistently use hyphen.
As a side effect, it is no longer possible to build jgit from source
in the gerrit tree, due to the different repository names.
Rename the dependencies to use hyphens, consistent with gerrit.
Change-Id: Ideebd858ddd3f0e6f765643001642dfb6c12441f Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
David Pursehouse [Sat, 30 Sep 2017 09:56:42 +0000 (10:56 +0100)]
ChangeIdUtilTest: Remove unused notestCommitDashV
This test was never being run. Since it was introduced it was
named "notest.." which meant it didn't run with JUnit3, and
since it is not annotated @Test it also doesn't run with JUnit4.
When compiling with Bazel 0.6.0, error-prone raises an error
that the public method is not annotated with @Ignore or @Test.
Given that the test has never been run anyway, we can just
remove it.
Bug: 525415
Change-Id: Ie9a54f89fe42e0c201f547ff54ff1d419ce37864 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Thomas Wolf [Sun, 19 Aug 2018 18:43:50 +0000 (20:43 +0200)]
Fix fetching with duplicate ref updates
If packed refs are used, duplicate updates result in an exception
because JGit tries to lock the same lock file twice. With non-atomic
ref updates, this used to work, since the same ref would simply be
locked and updated twice in succession.
Let's be more lenient in this case and remove duplicates before
trying to do the ref updates. Silently skip duplicate updates
for the same ref, if they both would update the ref to the same
object ID. (If they don't, behavior is undefined anyway, and we
still throw an exception.)
Add a test that results in a duplicate ref update for a tag.
Bug: 529400
Change-Id: Ide97f20b219646ac24c22e28de0c194a29cb62a5 Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Marc Strapetz [Sat, 30 Dec 2017 10:33:41 +0000 (11:33 +0100)]
Fetch(Process): should tolerate duplicate refspecs
Bug: 529314
Change-Id: I91eaeda8a988d4786908fba6de00478cfc47a2a2 Signed-off-by: Marc Strapetz <marc.strapetz@syntevo.com> Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Marc Strapetz [Sat, 30 Dec 2017 10:12:14 +0000 (11:12 +0100)]
FetchCommandTest: test add/update/delete fetch
Change-Id: I2442394fb7eae5b3715779555477dd27b274ee83 Signed-off-by: Marc Strapetz <marc.strapetz@syntevo.com> Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Hugo Arès [Wed, 15 Aug 2018 13:54:29 +0000 (09:54 -0400)]
Fix GC run in foreground to not use executor
Since I3870cadb4, GC task was always delegated to an executor even when
background option was set to false. This was an issue because if more
than one GC object was instantiated and executed in parallel, only one GC
was actually running because of the single thread executor.
Change-Id: I8c587d22d63c1601b7d75914692644a385cd86d6 Signed-off-by: Hugo Arès <hugo.ares@ericsson.com>
Matthias Sohn [Fri, 27 Jul 2018 08:51:58 +0000 (10:51 +0200)]
Merge branch 'stable-4.8' into stable-4.9
* stable-4.8:
Prepare 4.7.3-SNAPSHOT builds
JGit v4.7.2.201807261330-r
Delete all loose refs empty directories
Use java.nio to delete path to get detailed errors
GC: Remove empty references folders
Do not ignore path deletion errors
Change-Id: I6ab2b951dd94a9fc1c4f5283847a3e2ec37d0895 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
David Pursehouse [Fri, 27 Jul 2018 07:22:51 +0000 (08:22 +0100)]
Merge branch 'stable-4.7' into stable-4.8
* stable-4.7:
Prepare 4.7.3-SNAPSHOT builds
JGit v4.7.2.201807261330-r
Delete all loose refs empty directories
Use java.nio to delete path to get detailed errors
GC: Remove empty references folders
Do not ignore path deletion errors
Change-Id: Iadc8275fbaa3d6f7d08a96ab66d49f392f6aab78 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
After packaging references, the folders containing these references are
not deleted. In a busy repository, this causes operations to slow down
as traversing the references tree becomes longer.
Delete empty reference folders after the loose references have been
packed.
To avoid deleting a folder that was just created by another concurrent
operation, only delete folders that were not modified in the last 30
seconds.
Marco Miller [Thu, 21 Jun 2018 18:18:48 +0000 (14:18 -0400)]
ResolveMerger: Fix encoding with string; use bytes
This change fixes the issue [1]. Before this fix, a merge involving
the caching of consecutive yet similar filenames with Norwegian
characters [2] used to throw an IllegalStateException: Duplicate
stages not allowed. This was caused by inaccurate decoding of the
filenames, using string values assuming default encoding. In the
toString method of DirCacheEntry, used before through getPathString,
UTF-8 encoding is used, but the end result becomes default encoding,
through Object's default toString usage. The special characters in
those two consecutive (particular) filenames [2] were becoming the
very same decoded /single character, lending consecutive -but then
identical- filenames. Thus the perceived duplicate 0-staging of the
file(s).
Replace getPathString usage with getRawPath for this specific case,
or use byte array representations of cached entries instead of string.
Adding a test for this change is not possible, as there is no known
way to change the default encoding for filenames such as [2] (e.g.).
JGitTestUtil does write file contents through UTF-8, but encoding like
so does not apply to the actual file name. Hence there is no way to
create files with names properly made of special characters such as
[2]'s. And the test that is necessary for this case assumes such
Norwegian (or similar characters) filenames. Changing the default
locale programmatically in a test has no effect either. And changing
the LANG value passed to the JVM is only possible upon starting it.
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