Previously when RecursiveMerger was trying to create a single virtual
common base for the merge it was failing when this lead to content-merge
conflicts. This is different from what native git is doing. When native
git's recursive merge algorithm creates a new common base it will merge
the multiple parents and simply take the merge result (potentially
including conflict markers) as common base. See my discussion with Shawn
here: http://www.spinics.net/lists/git/msg234959.html :
> - How should workingtree, index (stage1,2,3) look like if during
that
> merge of common ancestors a conflict occurs? Will I see in stage2
and
> stage3 really see content of X1 and X2?
Its done entirely in memory and never touches the working tree or
index. When a conflict exists in the X1-X2 merge the conflict is
preserved into the new virtual base.
There is still the possibility that the merge of parents lead to
conflicts. File/Folder conclicts, conflicts on filemodes. This commit
only fixes the situation for conflicts when merging content.
Bug: 438203
Change-Id: If45bc3d078b3d3de87b758e71d7379059d709603
During recursive merge jgit potentially has to merge multiple
common ancestors. If this fails because there are conflicts then
the exception thrown for that should have a message which states
this clearly. Previously a wrong message was given ("More than 200
merge bases ...")
Change-Id: Ia3c058d5575decdefd50390ed83b63668d31c1d1
Each time the longest common substring is found the diff algorithm
recurses to reprocess the regions before and after the common string.
Large files with many edits can trigger StackOverflowError as the
algorithm attempts to process a deeply split tree of regions. This
is especially prone to happen in servers where the Java stack size
may have been limited to 1M or even 256K.
To keep edits produced in order a queue is used to process edits
in a depth-first strategy.
Change-Id: Iae7260c6934efdffac7c7bee4d3633a8208924f7
When RecursiveMerger tried to determine a common base tree it was
recursively tried to merge multiple common bases. But these intermediate
merges which have just been done to determine a single common base for
the final merge already filled some important fields (toBeCheckedOut,
toBeDeleted, ...). These side effects of the intermediate merges led to
wrong results of the final merge. One symptom was that after a recursive
merge which should be succesful you could still see leftover files in
the worktree: files which existed in the (virtual) common base but which
don't exist anymore in the branches to be merged.
The solution is easy: Clear the appropriate fields after common base
determination and start the final merge with a clean state.
Change-Id: I644ea9e1cb15360f7901bc0483cdb9286308c226
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
As described in native gits file "git-read-tree.txt" git has in a
special mode when doing the "initial" checkout. "Initial" means that the
index is empty before the checkout. This was not handled correctly in
JGit and is fixed in this commit. Also see
https://github.com/git/git/blob/master/Documentation/git-read-tree.txt#L181
Change-Id: I9b9d1bd9ebf349cfca420c891c7b099a18d07ba4
It contained outdated information about attaching patches to bug
reports. Shorten it to the essentials.
Also format it using markdown and rename it to CONTRIBUTING.md, which is
a convention and doesn't include "patches" in the name.
Change-Id: I9ee73f16e6fa8fbf529ac0ca791e2375d4d56d68
Signed-off-by: Robin Stocker <robin@nibor.org>
Setting branch.<name>.rebase or pull.rebase to 'preserve' will preserve
merges during rebase. Also, pull.rebase is now consulted if there is no
branch-specific configuration.
Bug: 429664
Change-Id: I345fa295c7e774e0d0a8e6aba30fbfc3552e0084
Signed-off-by: Konrad Kügler <swamblumat-eclipsebugs@yahoo.de>
With --preserve-merges C Git re-does merges using the rewritten merge
parents, discarding the old merge commit. For the common use-case of
pull with rebase this is unfortunate, as it loses the merge conflict
resolution (and other fixes in the merge), which may have taken quite
some time to get right in the first place.
To overcome this we use a two-fold approach:
If any of the (non-first) merge parents of a merge were rewritten, we
also redo the merge, to include the (potential) new changes in those
commits.
If only the first parent was rewritten, i.e. we are merging a branch
that is otherwise unaffected by the rebase, we instead cherry-pick the
merge commit at hand. This is done with the --mainline 1 and --no-commit
options to apply the changes introduced by the merge. Then we set up an
appropriate MERGE_HEAD and commit the result, thus effectively forging a
merge.
Apart from the approach taken to rebase merge commits, this
implementation closely follows C Git. As a result, both Git
implementations can continue rebases of each other.
Preserving merges works for both interactive and non-interactive rebase,
but as in C Git it is easy do get undesired outcomes with interactive
rebase.
CommitCommand supports committing merges during rebase now.
Bug: 439421
Change-Id: I4cf69b9d4ec6109d130ab8e3f42fcbdac25a13b2
Signed-off-by: Konrad Kügler <swamblumat-eclipsebugs@yahoo.de>
Allows to pass for example a List<RevCommit>.
Change-Id: I5522707060d7d3e0d848ba579956dc62f8fa0234
Signed-off-by: Konrad Kügler <swamblumat-eclipsebugs@yahoo.de>
DiffFormatter now suports either side being null and the log program
will output the diff for the first commit.
Bug: 395791
Change-Id: I378957b57e9ad1f7195ba416f402178453f0ebd3
Making the methods static would gain little in performance,
make the code harder to change. Removing unncessary warnings
is more important.
Change-Id: If3e6aa9c1d92e58b4e7a8e246cf4aace237d7a7b
These settings were added by Eclipse simply by touching
the project settings. Adding these makes it simpler to see
what local changes have been made.
Change-Id: Iab0aa62530312eb0c78b03b5c6a632742bcc4978
Improve how tests do a "touch" operation on files. Instead of doing
"f.setLastModified(System.currentTimeMillis)" open a Outputstream on the
file and directly close it again. This makes this method rely only on
one clock - the clock of the filesystem.
Bug: 436917
Change-Id: I68ef3c2878f28b12daebf2ef6a9fa0a5d6e0964d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This message is not processed by MessageFormat.
Bug: 438261
Change-Id: If75d8f3cd3f356a56623eee96b64e8845de5eb38
Signed-off-by: Robin Stocker <robin@nibor.org>
{} is plain wrong and is not accepted by MessageFormat, the other risk
becoming wrong if another single quote is introduced in the future and
sets a bad example.
Bug: 438261
Change-Id: I2948ca90c10f6ec2574f7f2b9be0a72821ea4daf
* stable-3.4:
Prepare 3.4.2-SNAPSHOT builds
JGit v3.4.1.201406201815-r
Allow retrying connecting SshSession in case of an exception
Change-Id: I7efb009b9e012637a16c57e2e93e074023b8e46c
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Connecting to an SshSession may fail due to different reasons. Jsch for
example often throws an com.jcraft.jsch.JschException: verify: false.[1]
The issue is still not fixed in JSch 0.1.51.
In such a case it is worth retrying to connect. The number of connection
attempts can be configured using ssh_config parameter
"ConnectionAttempts" [2].
Don't retry if the user canceled authentication.
[1] http://sourceforge.net/p/jsch/bugs/58/
[2] http://linux.die.net/man/5/ssh_config
Bug: 437656
Change-Id: I6dd2a3786b7d3f15f5a46821d8edac987a57e381
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The current behavior of passing a TreeFilter to RevWalk has limited
usefulness, since the RevFilter derived from the TreeFilter is always
ANDed together with any other RevFilters. It is also tied fairly
tightly to the parent rewriting mechanism.
Make TreeRevFilter a generic RevFilter that matches modified paths
against any TreeFilter. This allows for more complex logic like
(modified this path OR authored by this person).
Leave the rewrite flag logic in this class, since it's closely tied to
the parent comparison code, but hidden behind a protected constructor.
Change-Id: Ia72ef591a99415e6f340c5f64583a49c91f1b82f
Sometimes an input stream is more useful than the filename of the xml manifest.
Change-Id: Icb09ac751b3d8d7eb14427ad1aac8cee0c371c5f
Signed-off-by: Yuxuan 'fishy' Wang <fishywang@google.com>
Also check if the passed version matches the version pattern
<major>.<minor>.<micro>.<qualifier>-<classifier>
Change-Id: Ib7edf51fb5e89232909611de5b4811a62b4f3953
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Christian Halstrick
Yuxuan 'fishy' Wang
Shawn Pearce
Robin Stocker
Robin Rosenberg
Konrad Kügler
Matthias Sohn
Stefan Lay
Dave Borowitz
Anton Bannykh