Use of String.equals("") can be replaced with with String.length() == 0
(for JDK5 and lower) or String.isEmpty() (for JDK6 and higher)
Change-Id: Id1462d22c5d249485d87993263a9239809e73c55
Signed-off-by: Carsten Hammer <carsten.hammer@t-online.de>
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Introduce RefDatabase#getTipsWithSha1 to list refs pointing to object
Add resolveTipSha1, an inverse of exactRef(String ...), to RefDatabase
and provide a default implementation that runs in O(n) time where n is
the number of refs. For RefTable, provide an implementation that runs
in O(log(n)) time.
[ifrade@google.com: with tests in InMemoryRepositoryTest to exercise
the reftable code path, too]
Change-Id: I2811ccd0339cdc1c74b42cce2ea003f07a2ce9e1
Signed-off-by: Patrick Hiesel <hiesel@google.com>
Signed-off-by: Ivan Frade <ifrade@google.com>
Attach deletion failure reason in FileUtils.delete()
Use Files.delete() instead of File.delete(), and if there is
an exception thrown propagate it unless errors are to be ignored so
that the actual deletion failure cause is available to the caller
(and will be logged).
Change-Id: I5fdb5a4052942437ab365289ad4bb1b563c29456
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
DfsRefDatabase: Keep update index when peeling a reference
The new references created in the peeling do not receive the update
index. In other words, the update index of a reference (if set) is lost
in the peeling.
Pass-through the update index to the newly created references.
Tested via InMemoryRepository, which uses DfsReftableDatabase.
Change-Id: I7ff7c737a9c3366fdec296a4d9b2e51d10227957
Signed-off-by: Ivan Frade <ifrade@google.com>
Code that creates references and wants to support ref dbs with and
without update indexes needs to set this value. This leds to a
proliferation of "-1" in the code base.
Make the "undefined" value a constant in the ref interface.
Change-Id: I2622a37536a84b4a4036dd55792e185486fa0628
Signed-off-by: Ivan Frade <ifrade@google.com>
Inline newTreeVisit into enterTree and call the new method pushTree. Use
pushTree both for pushing children of the existing currVisit.
Change-Id: I75ea37f48b2befb738a3e88bed40ac08f1df9a03
Signed-off-by: Matthew DeVore <matvore@gmail.com>
Expose and pass around the FilterSpec object rather than the raw blob limit
Use the FilterSpec object so that less code has to know about the make-up of
FilterSpecs. When fields are added to FilterSpec, these pieces of code won't
need updating again.
Change-Id: I2b9e59a9926ff112faf62a3fa2d33c961a1779e5
Signed-off-by: Matthew DeVore <matvore@gmail.com>
This increases type-safety and is ground work for support of the
"tree:<depth>" filter.
Change-Id: Id19eacdcdaddb9132064c642f6d554b1060efe9f
Signed-off-by: Matthew DeVore <matvore@gmail.com>
When using @NonNull annotations in new code, if I write
public void setFrobber(@NonNull frobber) {
this.frobber = frobber;
}
then consumers of the JGit library that do not have nullness checking
enabled can easily pass in null by mistake. On the other hand, if I
write
public void setFrobber(@NonNull frobber) {
if (frobber == null) {
throw new NullPointerException();
}
this.frobber = frobber;
}
then Eclipse JDT complains:
Null comparison always yields false: The variable frobber is specified as @NonNull
Add a checkNotNull helper that offers the best of both worlds:
public void setFrobber(@NonNull frobber) {
this.frobber = checkNotNull(frobber);
}
Briefer code, null check is intact, and no warning.
Inspired by Guava's com.google.common.base.Preconditions.checkNotNull.
Change-Id: If59588d13a1119e899657ed2296931ea18ed0e2a
This code is not specific to V2 of the protocol, so it doesn't belong
there. Move it to its own class.
Change-Id: I8084764147d1d0e2bceaaead59b332a8ec1a0825
Signed-off-by: Matthew DeVore <matvore@gmail.com>
HashMap<String, Ref> has a memory overhead for refs. Use RefMap.
Change-Id: I3fb4616135dacf687cc3bc2b473effc66ccef5e6
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
Fix GC to delete empty fanout directories after repacking
The prune method did not delete empty fanout directories when loose
objects moved to a new pack file but only when loose unreferenced
objects were pruned.
Change-Id: Ia068f4914c54d9cf9f40b75e8ea50759402b5000
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
DescribeCommand: Add a missing dots at the end of docs
Ensure the sentences to document fields consistenly end with a dot.
Change-Id: I084899cafe4dea6f2424132dce9f3adca2e20985
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
BaseReceive/UploadPack: Stop using deprecated RefAdvertiser.send(Map)
RefAdvertiser.send(Map<String, Ref>) is deprecated in favour of
RefAdvertiser.send(Collection<Ref>). Subclasses that need to override
the "send" method need to override also the deprecated version, because
it is still invoked by BaseReceivePack and UploadPack.
Remove the last usages of the deprecated method.
Change-Id: I7eba426970251f78801ddf96b87a65d1baaebdcf
Signed-off-by: Ivan Frade <ifrade@google.com>
When reading from a packfile, make sure that is valid
and has a non-null file-descriptor.
Because of concurrency between a thread invalidating a packfile
and another trying to read it, the read() may result into a NPE
that won't be able to be automatically recovered.
Throwing a PackInvalidException would instead cause the packlist
to be refreshed and the read to eventually succeed.
Bug: 544199
Change-Id: I27788b3db759d93ec3212de35c0094ecaafc2434
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>
Move throw of PackInvalidException outside the catch
When a packfile is invalid, throw an exception explicitly
outside any catch scope, so that is not accidentally caught
by the generic catch-all cause, which would set the packfile
as valid again.
Flagging an invalid packfile as valid again would have
dangerous consequences such as the corruption of the in-memory
packlist.
Bug: 544199
Change-Id: If7a3188a68d7985776b509d636d5ddf432bec798
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>
Do not redundantly call File.lastModified() for extracting the
timestamp of the PackFile but rather use consistently the FileSnapshot
which reads all file attributes in a single bulk call.
Change-Id: I932675ae4fe56dcd3833dac249816f097303bb09
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Due to finite filesystem timestamp resolution the last modified
timestamp of files cannot detect file changes which happened in the
immediate past (less than one filesystem timer tick ago).
Read and consider file size also, so that differing file size can help
to more accurately detect file changes without reading the file content.
Use bulk read to avoid multiple stat calls to retrieve file attributes.
Change-Id: I974288fff78ac78c52245d9218b5639603f67a46
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The pack reload mechanism from the filesystem works only by name
and does not check the actual last modified date of the packfile.
This lead to concurrency issues where multiple threads were loading
and removing from each other list of packfiles when one of those
was failing the checksum.
Rely on FileSnapshot rather than directly checking lastModified
timestamp so that more checks can be performed.
Bug: 544199
Change-Id: I173328f29d9914007fd5eae3b4c07296ab292390
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>
In case of concurrent pack file access, threads may wait on the idx()
function even for already open files. This happens especially with a
slow file system.
Performance numbers are listed in the bug report.
Bug: 543739
Change-Id: Iff328d347fa65ae07ecce3267d44184161248978
Signed-off-by: Juergen Denner <j.denner@sap.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
That method can easily be invoked with a null argument (e.g.
isId(repo.getFullBranch()), therefore it should handle null arguments.
Change was suggested in https://git.eclipse.org/r/#/c/137918/, which
tried to fix the same in egit only.
Bug:544982
Change-Id: I32d1df6e9b2946ab324eda7008721159019316b3
Signed-off-by: Michael Keppler <Michael.Keppler@gmx.de>
UploadPack: Do not retain commit body when checking wants
The commit body contains the commit message, which is not needed for
reachability checks.
Change-Id: Ie209c3b3f022579942f05b8b5d0625ce26400a5d
Signed-off-by: Jonathan Nieder <jrn@google.com>
The visibility change was merged after 5.3 release. The @since line
is wrong.
Fixing it in a new commit looks like the easiest way forward.
Change-Id: I6f72a9e684e99a4440cda1eb532c22b4b7bbdea5
Signed-off-by: Ivan Frade <ifrade@google.com>
Do not retain commit body in RevWalk for reachability checks
Commit body contains the message that is not needed for reachability checks, and
takes up memory unnecessarily.
Change-Id: I0c7f6da249bf9c4fda9dc9e62e809322c68effce
Signed-off-by: Minh Thai <mthai@google.com>
This can help track down poor long tail performance that isn't accounted
for in the readIdxMicros or readBlockMicros metrics.
Change-Id: I701b9cfcc124f4ddb860d1766a11ea3557e604ce
Signed-off-by: Terry Parker <tparker@google.com>
PackFile: report correct message for checksum mismatch
When the packfile checksum does not match the expected one
report the correct checksum error instead of reporting that
the number of objects is incorrect.
Change-Id: I040f36dacc4152ae05453e7acbf8dfccceb46e0d
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
(cherry picked from commit 436c99ce59)
Externalize the message and log the pack file with absolute path.
Change-Id: I019052dfae8fd96ab67da08b3287d699287004cb
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
(cherry picked from commit 9665d86ba1)
ObjectDirectory: extra logging on packfile exceptions
Display extra logging, including the exception with the associated
stacktrace, whenever a packFile can't be read and thus removed
from the packlist.
Change-Id: I97a4e31dc427bfcc0baae438dcbe2dcd4704b824
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>
(cherry picked from commit 962babc4b2)
PackFile: report correct message for checksum mismatch
When the packfile checksum does not match the expected one
report the correct checksum error instead of reporting that
the number of objects is incorrect.
Change-Id: I040f36dacc4152ae05453e7acbf8dfccceb46e0d
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Externalize the message and log the pack file with absolute path.
Change-Id: I019052dfae8fd96ab67da08b3287d699287004cb
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
ResolveMerger: Destroy TemporaryBuffer on unchecked exceptions
Previously, we called destroy() to delete the temp file on failure only
when catching an IOException, not a RuntimeException. Use a slightly
different construction with a finally block to ensure it's always
deleted on error (assuming the JVM is still healthy enough).
Change-Id: Ie201f3cfc81099ee1cafed066632da76223cef1f
There are valid cases where a hook, invoked by ProtocolV2Hook
and probably implemented in a different package, is interested
in knowing the wanted refs in the request.
Increase visibility to public in the wanted-ref method.
Change-Id: I5da085ac7af4c396c1cb85e630f40a57fc70b33e
Signed-off-by: Ivan Frade <ifrade@google.com>
Similar to UploadPack.getDepth() to know the shallow clone depth, expose
the user-specified filter blob limit for partial clones.
Change-Id: I04bde06862a1cf8a9862d950c15023c49d16a2a6
Signed-off-by: Terry Parker <tparker@google.com>
On Windows use %APPDATA%\gnupg as GPG directory if it exists
Hard-coding ~/.gnupg for the GPG directory doesn't work on Windows,
where GnuPG uses %APPDATA%\gnupg by default. Make the determination
of the directory platform-dependent.
Bug: 544797
Change-Id: Id4bfd39a981ef7c5b39fbde46fce9a7524418709
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Instead of a new "unexpectedNlinkValue" message use the already
existing "failedAtomicFileCreation". Remove a stray double quote
from the latter.
Change-Id: I1ba5e9ea48d3f7615354b2ace2575883070b3206
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
RebaseCommand: tighten check for --preserve-merges on --continue
With native git, .git/rebase-merge/rewritten exists actually in two
different cases:
* as a file in git rebase --merge recording OIDs for copying notes
* as a directory in git rebase --preserve-merges
Add a comment, and check for isDirectory() instead of exists().
Bug: 511487
Change-Id: I6a3317b4234d4f41c41b3004cdc7ea0abf2c6223
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
RebaseCommand: fix ONTO_NAME, and --preserve-merges is interactive
ONTO_NAME must be "onto_name", not "onto-name".
For native git, --preserve-merges is an interactive mode. Create the
INTERACTIVE marker file, otherwise a native git rebase --continue
will fall back into rebase --merge mode before git 2.19.0 since it
started looking for the REWRITTEN directory to make the distinction
only then.[1]
This allows a JGit interactive rebase to be continued via native git
rebase --continue.
[1] https://github.com/git/git/commit/6d98d0c0
Bug: 511487
Change-Id: I13850e0fd96ac77d03fbb581c8790d76648dbbc6
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Aborting a rebase used ORIG_HEAD to reset. Strictly speaking this is
not correct, since other commands run during the rebase (for instance,
when the rebase stopped on a conflict) might have changed ORIG_HEAD.
Prefer the OID recorded in the orig-head file, falling back to the
older "head" file if "orig-head" doesn't exist, and use ORIG_HEAD only
if neither exists.
Bug: 511487
Change-Id: Ifa99221bb33e4e4754377f9b8f46e76c8936e072
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
With text=auto or core.autocrlf=true, git does not normalize upon
check-in if the file in the index contains already CR/LFs. The
documentation says: "When text is set to "auto", the path is
marked for automatic end-of-line conversion. If Git decides that
the content is text, its line endings are converted to LF on
checkin. When the file has been committed with CRLF, no conversion
is done."[1]
Implement the last bit as in canonical git: check the blob in the
index for CR/LFs. For very large files, we check only the first 8000
bytes, like RawText.isBinary() and AutoLFInputStream do.
In Auto(CR)LFInputStream, ensure that the buffer is filled as much as
possible for the isBinary() check.
Regarding these content checks, there are a number of inconsistencies:
* Canonical git considers files containing lone CRs as binary.
* RawText checks the first 8000 bytes.
* Auto(CR)LFInputStream checks the first 8096 (not 8192!) bytes.
None of these are changed with this commit. It appears that canonical
git will check the whole blob, not just the first 8k bytes. Also
note: the check for CR/LF text won't work with LFS (neither in JGit
nor in git) since the blob data is not run through the smudge filter.
C.f. [2].
Two tests in AddCommandTest actually tested that normalization was
done even if the file was already committed with CR/LF.These tests
had to be adapted. I find the git documentation unclear about the
case where core.autocrlf=input, but from [3] it looks as if this
non-normalization also applies in this case.
Add new tests in CommitCommandTest testing this for the case where
the index entry is for a merge conflict. In this case, canonical git
uses the "ours" version.[4] Do the same.
[1] https://git-scm.com/docs/gitattributes
[2] https://github.com/git/git/blob/3434569fc/convert.c#L225
[3] https://github.com/git/git/blob/3434569fc/convert.c#L529
[4] https://github.com/git/git/blob/f2b6aa98b/read-cache.c#L3281
Bug: 470643
Change-Id: Ie7310539fbe6c737d78b1dcc29e34735d4616b88
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Since 2011-02-10 (i.e., git 1.7.6)[1] native git uses "orig-head" for
REBASE_HEAD. JGit was still using "head". Currently native git has a
legacy fall-back for reading this, but for how long? Let's write to
both. Note that JGit never reads this file.
[1] https://github.com/git/git/commit/84df4560
Bug: 511487
Change-Id: Id3742bf9bbc0001d850e801b26cc8880e646abfc
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Carsten Hammer
Patrick Hiesel
Thomas Wolf
Gunnar Wagenknecht
Ivan Frade
Matthew DeVore
Jonathan Nieder
Masaya Suzuki
Matthias Sohn
Sebastian Schuberth
Luca Milanesio
Juergen Denner
Michael Keppler
Minh Thai
Terry Parker
David Pursehouse
Dave Borowitz