This feature was introduced in native git with version 1.8.4.
Bug: 422951
Change-Id: I42f194174d64d7ada6631e2156c2a7bf93b5e91c
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Bad files from symbolic links were being generated on Cygwin and
required resolution by the appropriate FS. Pass FS to getSymRef and call
FS.resolve before asking if the file is absolute.
Bug: 419494
Change-Id: I74aa7a285954cade77f41df6f813b6dafb5d6cd7
Signed-off-by: John Ross <jwross@us.ibm.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Add Squash/Fixup support for rebase interactive in RebaseCommand
The rebase command now supports squash and fixup. Both actions are not
allowed as the first step of the rebase.
In JGit, before any rebase step is performed, the next commit is
already cherry-picked. This commit keeps that behaviour. In case of
squash or fixup a soft reset to the parent is perfomed afterwards.
CQ: 7684
Bug: 396510
Change-Id: I3c4190940b4d7f19860e223d647fc78705e57203
Signed-off-by: Tobias Pfeifer <to.pfeifer@web.de>
Signed-off-by: Stefan Lay <stefan.lay@sap.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Parse commitId and shortMessage of a commented out line in rebase todo
A rebase todo file consists of regular non-comment action lines and
comment lines. In case that a regular action line has been commented out
(i.e. prefixed with a hash '#'), the RebaseTodoLine that is representing
this line should hold the values for commitId and shortMessage even
though it's a comment line. This allows to switch between comment and
non-comment easily even after the file has been persisted and reread.
Change-Id: I56ec2ba08eaf3772e2d74d937dd496209a744d4b
Signed-off-by: Tobias Pfeifer <to.pfeifer@web.de>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Enhance reading of git-rebase-todo formatted files
Reading and writing files formatted like the git-rebase-todo files was
hidden in the RebaseCommand. Certain constructs (like leading tabs and
spaces) have not been handled as in native git. Also the upcoming
rebase interactive feature in EGit needs reading/writing these files
independently from a RebaseCommand.
Therefore reading and writing those files has been moved to the
Repository class. RebaseCommand gets smaller because of that and doesn't
have to deal with reading/writing files.
Additional tests for empty todo-list files, or files containing comments
have been added.
Change-Id: I323f3619952fecdf28ddf50139a88e0bea34f5ba
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Also-by: Tobias Pfeifer <to.pfeifer@sap.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Use full branch name when getting ref in BranchTrackingStatus
In case there is both a tag and branch called "foo", the tag is returned
if calling getRef with the short name. By using refs/heads/foo, the
branch is returned.
Bug: 417158
Change-Id: I86b4f83955586bb24774fd621f5012499cf67909
Signed-off-by: Robin Stocker <robin@nibor.org>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Fix BatchRefUpdate progress-monitoring so it doesn't count twice
I was seeing output like this while running The BFG:
Updating references: 200% (374/187)
...issue sneaked in with 5cf53fda I think.
The update call is also moved to the end of the loop, as update() is
only supposed to be called after work has been done ("Denote that some
work units have been completed").
Change-Id: I1620fa75be16dc80df44745d0e123ea512762e31
Signed-off-by: Robin Stocker <robin@nibor.org>
Fix AnyObjectId's generic type declaration of Comparable
If you look at any implementation of Comparable in the JDK, you'll see
that the type parameter for Comparable is supposed to be the type of
the implementing class:
http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html
The current type signature of Comparable<Object> is pretty awful, at the
very least because you can not, in fact, successfully compare
AnyObjectId with any random subclass of Object. It also causes problems
with type-inference and the scala.math.Ordering trait in Scala.
In order to compile, this change *does* require removing the
AnyObjectId.ompareTo(Object) method - which actually only ever cast
to AnyObjectId in any case. Nothing in the JGit test suite requires this
method, but it might constitute a breaking API change, so it would be
best if it can be added in time for JGit 3.0.
Change-Id: I3b549a5519ccd6785f98e444da76d2363bcbe41a
If the HEAD is not present in a repository, then there is a
NullPointerException thrown in the delete code. Since this only
exists to verify if the deletion is not the HEAD reference, then
skip this check if the HEAD cannot be found.
Bug: 406722
Change-Id: I882497202d986096513a4d791cd07fa935a3f9e4
Signed-off-by: Alex Blewitt <alex.blewitt@gmail.com>
IndexDiff: Provide stage state for conflicting entries
Adds a new method getConflictingStageStates() which returns a
Map<String, StageState> (path to stage state). StageState is an enum for
all possible stage combinations (BOTH_DELETED, ADDED_BY_US, ...).
This can be used to implement the conflict text for unmerged paths in
output of "git status" or in EGit for decorations/hints.
Bug: 403697
Change-Id: Ib461640a43111b7df4a0debe92ff69b82171329c
Signed-off-by: Chris Aniszczyk <zx@twitter.com>
Skip main thread test in ThreadSafeProgressMonitor
update(int) is only invoked from a worker thread, in JGit's case
this is DeltaTask. The Javadoc of TSPM suggests update should only
ever be used by a worker thread.
Skip the main thread check, saving some cycles on each run of the
progress monitor.
Change-Id: I6cb9382d71b4cb3f8e8981c7ac382da25304dfcb
This implementation has been proven to deadlock in production server
loads. Google has been running with it disabled for a quite a while,
as the bugs have been difficult to identify and fix.
Instead of suggesting it works and is useful, drop the code. JGit
should not advertise support for functionality that is known to
be broken.
In a few of the places where read-ahead was enabled by DfsReader
there is more information about what blocks should be loaded when.
During object representation selection, or size lookup, or sending
object as-is to a PackWriter, or sending an entire pack as-is the
reader knows exactly which blocks are required in the cache, and it
also can compute when those will be needed. The broken read-ahead
code was stupid and just read a fixed amount ahead of the current
offset, which can waste IOs if more precise data was available.
DFS systems are usually slow to respond so read-ahead is still
a desired feature, but it needs to be rebuilt from scratch and
make better use of the offset information.
Change-Id: Ibaed8288ec3340cf93eb269dc0f1f23ab5ab1aea
Instead of re-reading all refs after each update, execute
the deletes first, then read all refs once and perform
the check for conflicting ref names in memory.
Change-Id: I17d0b3ccc27f868c8497607d8e57bf7082e65ba3
JGit 3.0: move internal classes into an internal subpackage
This breaks all existing callers once. Applications are not supposed
to build against the internal storage API unless they can accept API
churn and make necessary updates as versions change.
Change-Id: I2ab1327c202ef2003565e1b0770a583970e432e9
Avoid looking at UNREACHABLE_GARBAGE for client have lines
Clients send a bunch of unknown objects to UploadPack on each round
of negotiation. Many of these are not known to the server, which
leads the implementation to be looking at indexes for garbage packs.
Disable examining the index of a garbage pack, allowing servers to
avoid reading them from disk during negotiation.
The effect of this change is the server will only ACK a have line
if the object was reachable during the last garbage collection,
or was recently added to the repository. For most repositories
there is no impact in this behavior change.
If a repository rewinds a branch, runs GC, and then resets the
branch back to where it was before, the now current tip is going to
be skipped by this change. A client that has the commit may wind up
getting a slightly larger data transfer from the server as an older
common ancestor will be chosen during negotiation. This is fixable
on the server side by running GC again to correct the layout of
objects in pack files.
Change-Id: Icd550359ef70fc7b701980f9b13d923fd13c744b
A pack bitmap index is an additional index of compressed
bitmaps of the object graph. Furthermore, a logical API of the index
functionality is included, as it is expected to be used by the
PackWriter.
Compressed bitmaps are created using the javaewah library, which is a
word-aligned compressed variant of the Java bitset class based on
run-length encoding. The library only works with positive integer
values. Thus, the maximum number of ObjectIds in a pack file that
this index can currently support is limited to Integer.MAX_VALUE.
Every ObjectId is given an integer mapping. The integer is the
position of the ObjectId in the complete ObjectId list, sorted
by offset, for the pack file. That integer is what the bitmaps
use to reference the ObjectId. Currently, the new index format can
only be used with pack files that contain a complete closure of the
object graph e.g. the result of a garbage collection.
The index file includes four bitmaps for the Git object types i.e.
commits, trees, blobs, and tags. In addition, a collection of
bitmaps keyed by an ObjectId is also included. The bitmap for each entry
in the collection represents the full closure of ObjectIds reachable
from the keyed ObjectId (including the keyed ObjectId itself). The
bitmaps are further compressed by XORing the current bitmaps against
prior bitmaps in the index, and selecting the smallest representation.
The XOR'd bitmap and offset from the current entry to the position
of the bitmap to XOR against is the actual representation of the entry
in the index file. Each entry contains one byte, which is currently
used to note whether the bitmap should be blindly reused.
Change-Id: Id328724bf6b4c8366a088233098c18643edcf40f
No longer invoke the expensive RefDatabase.isNameConflicting() check on
updating existing refs, reducing batch ref update time by ~97%.
The RefDirectory implementation of isNameConflicting() is quite
slow (it has to do an expensive loose-ref scan) but it's only necessary
to perform this check on ref update if the ref is being *created* - if
the ref already exists, we can already guarantee that it does not
conflict with any other refs.
C-Git seems to use a similar condition before making the
is_refname_available() check:
https://github.com/git/git/blob/v1.8.1.4/refs.c#L1660-L1670
As an example of the effects on performance, here's a simple timing
experiment using The BFG to remove one file from the JGit repo:
---
$ wget http://repo1.maven.org/maven2/com/madgag/bfg-repo-cleaner/1.0.1/bfg-1.0.1.jar
$ git clone --mirror https://git.eclipse.org/r/p/jgit/jgit.git
$ java -jar bfg-1.0.1.jar -D make_jgit.sh jgit.git
....
Updating references: 100% (5760/5760)
...Ref update completed in 148,949 ms.
BFG run is complete!
---
The execution time for the run is completely dominated by the batch ref
update at the end. Repeating the experiment with BFG v1.0.2 (using JGit
patched with this change), the refs update is dramatically reduced:
---
Updating references: 100% (5760/5760)
...Ref update completed in 4,327 ms.
---
Change-Id: I9057bc4ee22f9cc269b1cc00c493841c71527cd6
There is a huge performance issue when using both JGit (EGit) and Git
because JGit does not fill all dircache stat fields with the values Git
would expect. As a result thereof Git would typically revalidate a large
number of tracked files. This can take several minutes for large
repositories with many large files.
Since 1.8.2 Git will restrict stat checking to the size and whole second
part of the modification time stamp, if core.statinfo is set to
"minimal".
As JGit checks only size and modification time this is close to what
JGit already does. To make the match perfect ignore the sub-second part
of the modification time stamp if core.statinfo = minimal.
Change-Id: I8eaff1858a891571075a86db043f9d80da3d7503
This has the same logic as isNameConflicting, but instead of only
returning a boolean, it returns a collection of names that conflict.
It will be used in EGit to provide a better message to the user when
validating a ref name, see Ibea9984121ae88c488858b8a8e73b593195b15e0.
Existing implementations of isNameConflicting could be rewritten like
this:
return !getConflictingNames(name).isEmpty();
But I'm not sure about that, as isNameConflicting can be implemented in
a faster way than getConflictingNames.
Change-Id: I11e0ba2f300adb8b3612943c304ba68bbe73db8a
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Add additional FastForwardMode enums for different config contexts
FastForwardMode is represented by different strings depending on context
it is set or get from. E.g. FastForwardMode.FF_ONLY for
branch.<name>.mergeoptions is "--ff-only" but for merge.ff it is "only".
Change-Id: I39ae93578e4783de80ebf4af29ae23b3936eec47
This is necessary because some versions of JGit containing
the flawed c98abc9c05 were
used in the wild and wrote bad configuration files. We now
must accept this value in addition to the preferred case.
Change-Id: I3ed5451735658df6381532499130e5186805024a
Once we start talking about parents of tags, we are in the commit
graph, so treat all objects from this point as commits. This fixes
spurious IncorrectObjectTypeExceptions on resolving expressions like
tag^^.
Change-Id: I29ece1fdb49c9c5b9ca415efcd1876bc72e97120
Add additional FastForwardMode enums for different config contexts
FastForwardMode should be represented by different enums depending on
context it is set or get from. E.g. FastForwardMode.FF_ONLY for
branch.<name>.mergeoptions is "--ff-only" but for merge.ff it is "only".
Change-Id: I3ecc16d48e715b81320b73ffae4caf3558f965f2
Update the revert command and things relating to revert
Cherry-pick has been fixed, but even though revert does
basically the same thing, the fixes were not carried over here.
- Recognize the revert-states, analogous to the cherry picking states
- Make reset handle a revert-in-progress
- Update REVERT_HEAD and MERGE_MSG when revert fails due to conflicts
- Clear revert state on commit and reset
- Format the message similarily to how cherry-pick does. This is
not exactly how C Git does it.
The interface is still not the same as for cherry-picking.
Change-Id: I8ea956fcbc9526d62a2365360feea23a9280eba3
Signed-off-by: Chris Aniszczyk <zx@twitter.com>
A few classes such as Constanrs are marked with @SuppressWarnings, as are
toString() methods with many liternal, but otherwise $NLS-n$ is used for
string containing text that should not be translated. A few literals may
fall into the gray zone, but mostly I've tried to only tag the obvious
ones.
Change-Id: I22e50a77e2bf9e0b842a66bdf674e8fa1692f590
StartGenerator now processes .git/shallow to have the
RevWalk stop for shallow commits.
See RevWalkShallowTest for tests.
Bug: 394543
CQ: 6908
Change-Id: Ia5af1dab3fe9c7888f44eeecab1e1bcf2e8e48fe
Signed-off-by: Chris Aniszczyk <zx@twitter.com>
These appear as descriptions in the index, see here (currently empty):
http://download.eclipse.org/jgit/docs/latest/apidocs/
Change-Id: If7996deef30ae688bade8b3ad6b19547ca3d8b50
Signed-off-by: Chris Aniszczyk <zx@twitter.com>
toExternalString, equals and hashCode don't expect them to be null, so
explicitly disallow it in the constructor.
Also fix the documentation of setAuthor and setCommitter in
CommitCommand when specifying name and email as separate arguments.
Bug: 352984
Change-Id: I0ac994ae8e47789d38f7c6e6db55d482f0f1bac3
Allow @ in branch names and tighten syntax checking
Valid refs are defined by git-check-ref-format(1). In addition
we will not try to perform a lookup of an invalid ref name in
Repository.resolve().
Reported by R Shapiro in the Eclipse JGit Forum.
Change-Id: I0b098eec9ecb98a9ce16b1cfb476729aaf2fb190
Fix resolving expression with ~ and ^ than extends beyond history
resolve("foo~X") where X is greater than the distance from foo to the
root should return null, but 2a2362fb introduced a bug causing it to
either return resolve("foo") or NPE. Add a test for the correct
behavior.
Also add an analogous test for foo^X where X is greater than the
number of parents (which was not broken by that commit).
Change-Id: Ic580081ece57c8c2df29b652897b425ecb34e11f
Stefan Lay
John Ross
Robin Stocker
Matthias Sohn
Tobias Pfeifer
Christian Halstrick
Roberto Tyley
Alex Blewitt
Robin Rosenberg
Shawn Pearce
Tomasz Zarna
Colby Ranger
Dave Borowitz
Tomasz Zarna
Marc Strapetz
Dani Megert